Post on 10-Oct-2020
November 2016
Draft
NAGLE DAM
RESOURCE MANAGEMENT PLAN
View of the uMngeni River and Table Mountain
ACKNOWLEDGEMENTS
The project team would like to acknowledge and thank the following parties for their
contributions during the development of the Resource Management Plan and the associated
deliverables for Nagle Dam:
Representatives from the Department of Water and Sanitation: National Water
Infrastructure Branch: Integrated Environmental Engineering for their guidance and input;
Traditional Leaders, stakeholders and members of the community who attended and
participated at the various meetings;
Government Departments who participated at the Project Steering Committee Meetings,
and who provided information pertaining to the study area; and
Thanda Zulu- Nxumalo from Msinsi Holdings SOC Ltd and Artwell Mhlophe from Umgeni
Water, who generously offered their time and provided valuable insight which assisted
the project team in becoming well acquainted with Nagle Dam and the surrounding
property.
NAGLE DAM RMP RMP (Draft)
TITLE AND APPROVAL PAGE
Project Name: Nagle Dam Resource Management Plan
Report Title: Resource Management Plan
Authority Reference: N/A
Report Status Draft
Client: Umgeni Water
Prepared By: Nemai Consulting
+27 11 781 1730
147 Bram Fischer Drive, FERNDALE, 2194 +27 11 781 1731
donavanh@nemai.co.za
PO Box 1673, SUNNINGHILL, 2157 www.nemai.co.za
Report Reference: 10578–20161107-RMP R-PRO-REP|20150514
Authorisation Name Signature Date
Author: D. Henning 7 November 2016
Reviewed By: N. Naidoo 7 November 2016
NAGLE DAM RMP RMP (Draft)
RMP REVIEW PAGE
Review Period Month Year
Annual Review of
Business Plans April 2018 2019 2020 2021 2022
Five (5) Yearly Review
of RMP April 2022
Note that the above timeframes are based on the assumption that the RMP will be gazetted in April
2017.
NAGLE DAM RMP RMP (Draft)
AMENDMENTS PAGE
Date Nature of Amendment Amendment
Number
2 August 2016 Draft Version for Client Review 0
26 September 2016 Second Version for Client Review 1
6 October 2016 Third Version for PSC Review 2
7 November 2016 Fourth Version for Public Review 3
NAGLE DAM RMP RMP (Draft)
November 2016 i
EXECUTIVE SUMMARY
As part of Umgeni Water’s commitment to environmental sustainability, Nagle Dam
(including the water surface, shoreline and remaining surrounding property) must be
managed and utilised in an environmentally sound and equitable manner.
Umgeni Water embarked on a process to develop a Resource Management Plan (RMP) for
Nagle Dam, which is the first RMP to be developed for any of the dams owned by this
organisation. Nemai Consulting (RMP Process Facilitator) was appointed by Umgeni Water
(RMP Process Initiator) to compile the RMP for Nagle Dam.
The phases of the RMP development process for Nagle Dam are presented in the diagram
to follow.
Phases of the RMP Development Process for Nagle Dam
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This document presents the RMP, which is the culmination of the overall process, and
integrates the information contained in the other deliverables to develop a sustainable plan
for the use and management of Nagle Dam.
An overview of the dam, its operational requirements, infrastructure components and
facilities is provided. The main pieces of environmental and development-related legislation
governing the use and management of Nagle Dam and the surrounding land are also
presented, together with the management functions of key Government Departments.
The RMP also includes a brief description of the following, based on information extracted
from the preceding deliverables:
Biophysical and socio-economic environment, as detailed in the Research Report;
Hindrances associated with the potential utilisation of the dam and its shoreline area for
recreational purposes, based on the findings of the Encumbrance Survey; and
Desired state and objectives for the future management of Nagle Dam, as established as
part of the Vision and Objectives Report.
This information set the scene for the future management requirements for Nagle Dam,
which are provided in the following sections of the RMP:
An Institutional Plan, which consists of a three-tiered management system that includes
a RMP Steering Committee, Operational Management Committee and Dam
Management Committee;
A Zonal Plan, which considered –
The water surface of the Dam;
The shoreline area, which includes the remainder of the Nagle Dam property;
A Strategic Plan, which takes into consideration the management objectives related to
Nagle Dam, based on the outcomes of the RMP deliverables; and
A Financial Plan, which provides information on how revenue generated through
recreational use should be used, as applicable.
Based on the priority management requirements identified for Nagle Dam, various Business
Plans will be developed which will be captured in the final RMP deliverable. The Business
Plans will summarise the operational and financial objectives of the RMP and will contain the
interventions, resources and timeframes required to achieve these objectives.
This RMP will be reviewed every 5 years and revised as necessary, according to changing
priorities, constraints and achievements. The Business Plans will be updated annually.
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TABLE OF CONTENTS
1 INTRODUCTION 1
1.1 Background 1
1.2 What is an RMP? 1
1.3 RMP Triggers for Nagle Dam 2
1.4 RMP Process & Deliverables 4
1.5 Assumptions, Gaps and Limitations 5
2 OVERVIEW OF NAGLE DAM 7
2.1 Integrated Mgeni Water Supply System 7
2.2 Nagle Dam 8
2.2.1 History 8
2.2.2 Location 8
2.2.3 Ownership 9
2.2.4 Dam Operation 9
2.2.5 Dam Components 13
2.2.6 Management of the Nagle Dam Property 14
2.2.7 Dam Facilities 15
2.2.8 Existing Uses at Nagle Dam 16
2.3 Environmental Governance 18
2.3.1 Legislative Framework 18
2.3.2 Management Functions of Key Government Departments 21
2.3.3 Existing Policies, Strategies, Plans and Programmes 25
2.4 Biophysical Environment 27
2.4.1 Climate 27
2.4.2 Geology & Soils 27
2.4.3 Topography 28
2.4.4 Surface Water 28
2.4.5 SEA & SEMP 34
2.4.6 Flora 34
2.4.7 Fauna 36
2.4.8 Critical Biodiversity Areas 37
2.4.9 Protected Areas 37
2.4.10 Historical and Cultural Features 38
2.4.11 Air Quality 38
2.4.12 Agricultural Potential 38
2.5 Socio-Economic Environment 39
2.5.1 Land Use & Land Cover 39
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2.5.2 Land Tenure 40
2.5.3 Socio-Economic Profile 40
2.6 Encumbrances 41
3 MANAGEMENT OBJECTIVES 45
3.1 Vision Statement 45
3.2 Management Objectives 45
3.3 Criteria for Use and Management 49
4 INTEGRATED PLANNING, MANAGEMENT & ZONING 51
4.1 How does the RMP Work? 51
4.2 Institutional Plan 52
4.2.1 Overarching Institutional Framework 52
4.2.2 Dam Management Committee 53
4.2.3 Operational Management Committee 54
4.2.4 RMP Steering Committee 55
4.2.5 Management Tools 56
4.3 Zonal Plan 61
4.3.1 Defining a Zonal Plan 61
4.3.2 Current Recreational Uses 62
4.3.3 Potential Recreational and Commercial Activities 63
4.3.4 Measures to Facilitate Current and Future Recreational Activities 66
4.3.5 Carrying Capacity 69
4.3.6 Water Surface Zonal Plan 73
4.3.7 Shoreline Zonal Plan 81
4.3.8 Composite Zonal Plan 89
4.4 Financial Plan 90
4.5 Strategic Plan 92
5 WAY FORWARD 100
5.1 Business Plans 100
5.2 Review Cycle 100
6 CONCLUSIONS 101
7 REFERENCES 102
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LIST OF TABLES
Table 1: Details of certain key components of Nagle Dam (Umgeni Water, 2015b) 14
Table 2: Permitted recreational activities at Nagle Dam (water surface) 17
Table 3: Nagle Dam Management Units (Msinsi, 2012) 17
Table 4: Environmental Statutory Framework 19
Table 5: Government Department with Management Functions related to Nagle Dam 22
Table 6: Rating System for Recreational & Commercial Activities 63
Table 7: Rating of Recreational & Commercial Activities for Nagle Dam – No Contact 64
Table 8: Rating of Recreational & Commercial Activities for Nagle Dam – Primary Contact 65
Table 9: Rating of Recreational & Commercial Activities for Nagle Dam – Secondary Contact 65
Table 10 Requirements for water crafts 71
Table 11: Water Surface Zones and Management Requirements 75
Table 12: Shoreline Zones and Management Requirements 83
Table 13: RMP Strategic Plan 92
LIST OF FIGURES
Figure 1: Phases of the RMP Development Process for Nagle Dam 5
Figure 2: Schematic of Integrated Mgeni WSS 7
Figure 3: Regional Locality Map 10
Figure 4: Topographical Map 11
Figure 5: Aerial View of Nagle Dam 12
Figure 6: Key components of the Nagle Dam scheme 13
Figure 7: Msinsi’s organogram for Nagle Dam 15
Figure 8: Key facilities of the Nagle Dam 16
Figure 9: Nagle Dam Management Units 18
Figure 10: Simplified geology (Vorster, 2003) 27
Figure 11: Quaternary Catchments that form part of the uMngeni Catchment 28
Figure 12: Watercourses surrounding Nagle Dam 29
Figure 13: EWR site below Nagle Dam 31
Figure 14: Water quality monitoring points DNG004 and DNG037 32
Figure 15: SASS 5 data compared for RMG013 and RMG016 33
Figure 16: Vegetation types 34
Figure 17: CBAs 37
Figure 18: Land Cover (© GEOTERRAIMAGE - 2014) 39
Figure 19: Traditional Authorities 40
Figure 20: Wards included in socio-economic profile 41
Figure 21: Objective Hierarchy - Water Resource Protection 46
Figure 22: Objective Hierarchy - Manage Biophysical Environment 46
Figure 23: Objective Hierarchy - Preserve Ambience of Nagle Dam 47
Figure 24: Objective Hierarchy - Sustainable and Equitable Utilisation and Access 47
Figure 25: Objective Hierarchy - Unlock Socio-Economic Potential 48
Figure 26: Objective Hierarchy - Ensure Safety of the Dam Users 48
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Figure 27: Nagle Dam RMP Framework 51
Figure 28: Nagle Dam Institutional Framework 52
Figure 29: Members of the DMC 53
Figure 30: Members of the OMC 55
Figure 31: Members of the RSC 56
Figure 32: Cattle along northern shoreline of Nagle Dam 58
Figure 33: Some recreational activities at Nagle Dam 62
Figure 34: Water Surface Zonal Plan 74
Figure 35: Shoreline Zonal Plan 82
Figure 36: Composite Zonal Plan 89
Figure 37: Examples of recreational facilities at Nagle Dam 90
Figure 38: RMP & BP Review 100
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LIST OF ABBREVIATIONS
AtoN Aids to Navigation
BBBEE Broad-Based Black Economic Empowerment
BI Biotic Integrity
BSP Biodiversity Sector Plan
CARA Conservation of Agricultural Resources Act (Act No. 43 of 1983)
CBAs Critical Biodiversity Areas
CIWSP Cooperative Inland Waterways Safety Programme
COGTA Cooperative Governance and Traditional Affairs
CPSI Centre for Public Service Innovation
DAFF Department of Agriculture, Forestry and Fisheries
DARD Department of Agriculture and Rural Development
DEA Department of Environmental Affairs
DM District Municipality
DMC Dam Management Committee
DMR Department of Mineral Resources
DoT Department of Transport
DRDLR Department of Rural Development and Land Reform
DWA Department of Water Affairs
DWAF Department of Water Affairs and Forestry
DWS Department of Water and Sanitation
ECC Effective Carrying Capacity
ECZ Environmental Control Zone
EDTEA Economic Development, Tourism and Environmental Affairs
EIS Ecological Importance and Sensitivity
EIA Environmental Impact Assessment
EKZNW Ezemvelo KZN Wildlife
EMF Environmental Management Framework
ESAs Ecological Support Area
EWR Ecological Water Requirements
FEPAs Freshwater Ecosystem Priority Areas
FSL Full Supply Level
GN Government Notice
I&APs Interested and Affected Parties
IDP Integrated Development Plan
IEE Integrated Environmental Engineering
ITB Ingonyama Trust Board
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IWRM Integrated Water Resource Management
KZN KwaZulu-Natal
LED Local Economic Development
LM Local Municipality
LUMS Land Use Management Scheme
MC Management Capacity
MPRDA Minerals and Petroleum Resources Development Act (Act No. 28 of 2002)
NEMA National Environmental Management Act (Act No. 107 of 1998)
NEM:BA National Environmental Management: Biodiversity Act (Act No. 10 of 2004)
NEM:PAA National Environmental Management: Protected Areas Act (Act No. 57 of 2003)
NEM:WA National Environmental Management: Waste Act (Act No. 59 of 2008)
NFA National Forests Act (Act No. 84 of 1998)
NHRA National Heritage Resources Act (Act No. 25 of 1999)
NTU Nephelometric Turbidity Unit
NWA National Water Act (Act No. 36 of 1998)
NWRIB National Water Resource Infrastructure Branch
O&M Operation & Maintenance
OMC Operational Management Committee
PCC Physical Carrying Capacity
PES Present Ecological State
PPPs Public Private Partnerships
PSC Project Steering Committee
RCC Real Carrying Capacity
RDM Resource Directed Measures
REC Recommended Ecological Category
RMP Resource Management Plan
RMPs Resource Management Plans
ROP Rescue Operation Point
RQOs Resource Quality Objectives
RSC RMP Steering Committee
RWU Recreational Water Use
SAMSA South African Maritime Safety Authority
SANBI South African National Biodiversity Institute
SASCOC South African Sports Confederation and Olympic Committee
SASS 5 South African Scoring System Version 5
SCAs Systematic Conservation Assessments
SDCs Source Directed Controls
SDF Spatial Development Framework
SEA Strategic Environmental Assessment
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SEMP Strategic Environmental Management Plan
SMMEs Small, Medium and Micro-sized Enterprises
SPLUMA Spatial Planning and Land Use Management (Act No. 16 of 2013)
SWOT Strengths, Weaknesses, Opportunities and Threats
THETA Tourism Hospitality and Sport Education and Training Authority
ToR Terms of Reference
UPN Unique Positioning Number
WMA Water Management Area
WSS Water Supply System
WTP Water Treatment Plant
WULA Water Use License Application
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Nagle Dam
1 INTRODUCTION
1.1 Background
In accordance with section 29 of the Water
Services Act (Act No. 108 of 1997),
Umgeni Water is a water board which
provides bulk potable water and bulk
sanitation services to other water services
institutions in its service area.
As part of Umgeni Water’s commitment to
environmental sustainability, Nagle Dam
(including the water surface, shoreline and
remaining surrounding property owned by
Umgeni Water) must be managed and
utilised in an environmentally sound and
equitable manner. Umgeni Water thus
embarked on a process to develop a
Resource Management Plan (RMP) for
Nagle Dam, which is the first RMP to be
developed for any of the dams owned by
this organisation. Nemai Consulting (RMP
Process Facilitator) was appointed by
Umgeni Water (RMP Process Initiator) to
compile the RMP for Nagle Dam.
1.2 What is an RMP?
According to the Guidelines for the
Compilation of a RMP (DWAF, 2006), the
main aim of this plan is to “attain the
objectives underlying sustainability and to
compile workable, functional sustainable
access and utilisation plans for water
resources and in particular State Dams”. A
RMP is thus a planning tool
aimed at working within the
requirements of existing
Government policy, while
taking into account the needs
and interests of stakeholders.
A RMP can also be explained
as a systematic process for
the sustainable development
and management of a water
resource in the context of
NAGLE DAM RMP RMP (Draft)
November 2016 2
social, economic and environmental
objectives. In many ways, it shares
similarities with Integrated Water
Resource Management (IWRM). Hence,
one of the main functions of the RMP
process is to develop an Institutional
Plan for the effective management of
State Dams. The focus on institutional
arrangements is accompanied by a Zonal
Plan together with a detailed Strategic
Plan. In addition, a Financial Plan
provides guidance on funding
requirements and funding options.
The National Water Resource
Infrastructure Branch (NWRIB) of the
Department of Water and Sanitation
(DWS) checks that RMPs are compiled in
a procedurally correct manner, in
accordance with the RMP Guidelines
(2006), and that they meet the requisite
statutory requirements in terms of the
National Water Act (Act No. 36 of 1998)
(NWA).
1.3 RMP Triggers for Nagle Dam
There are a number of considerations that
prompted the development of the Nagle
Dam RMP, which include the following
(Umgeni Water, 2016a):
Nagle Dam is a regionally significant
resource and a critical component of
the Mgeni System which supplies
potable water to the eThekwini
Metropolitan Municipality, part of the
economic hub of KZN. The primary
function of the Nagle Dam is thus
water supply, which should not be
jeopardised.
A key constraint that needs to be
taken into consideration for possible
future use and development is the
relatively small water surface area of
the Dam.
Development proposals, some of
which have been in conflict with the
legally adopted spatial plans for the
area, have been received for the
shoreline and the peninsula commonly
referred to as the “island” at the Dam.
Future development pressures may
also arise, due to the waterbody and
surrounding area’s inherent
recreational values.
While the existing Framework for
Evaluating Development Proposals
around Umgeni Water Operated Dams
is currently used to guide decisions
regarding development proposals, a
gazetted RMP that allows some
community and economic
opportunities but safeguards the
primary objective of Nagle Dam, is
recommended to be developed with
the resultant necessary institutional
arrangements to ensure
implementation. The aforementioned
framework is thus an interim measure
until RMPs can be developed and
gazetted for all the dams Umgeni
Water operates. The intention of
Umgeni Water is that once RMPs have
been developed for all the dams
Umgeni Water operates, the
framework will no longer be used as
there will be a legal tool in place.
NAGLE DAM RMP RMP (Draft)
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From a water quality risk perspective,
any proposed development which
would be likely to increase the
eutrophication, pathogen or turbidity
risks to the dam, with a resultant
negative impact on raw water
treatability and treatment costs, would
be of concern.
Since Umgeni Water does not have
direct control over catchment activities
that can impact raw water quality and
water treatment costs, it is
recommended that Umgeni Water
maintains control over activities within
the Nagle Dam boundary to minimise
the cumulative effective of nutrient and
pathogen inputs to the Dam.
The Nagle Dam property is
surrounded by traditional land and
livestock watering occurs at and
downstream of the dam. Some of the
community use raw water directly from
the Nagle Aqueducts for some
domestic purposes. Further, the
Mkhizwana Water Treatment Plant
(WTP) and eMaphephetheni WTP
abstract raw water from the Nagle
Aqueducts. These two WTPs do not
have the capacity or the same
advanced water treatment capability of
Durban Heights WTP to cope with
water quality incidents. The location of
Nagle Dam together with the size of
Nagle Dam means that there are direct
water quality impacts locally and
therefore the land use management on
the Nagle Dam property is important
for public health.
Through the development of the Nagle
Dam RMP, Umgeni Water would like
to avoid potential conflict between
users, by allowing community and
economic opportunities within the Dam
basin which do not compromise the
primary function of Nagle Dam.
Whilst Msinsi has Reserve
Management Plans in place for those
dams at which they are located, Msinsi
does not manage the entire dam
property (e.g. the area around the dam
wall), which is the case at Nagle Dam.
This means that whilst for the areas
that Msinsi manages, the desired land
uses have been identified; those areas
used for operational areas are not
demarcated on a plan showing all the
uses (existing and desired) on the dam
property. Further, whilst the dam
properties are aligned with the legal
spatial planning tools viz. the
Integrated Development Plan (IDP),
the Spatial Development Framework
(SDF) (both district and local), the
scheme (where they are in place) and
the Strategic Environmental
Management Plan (SEMP), a legal
tool is still required for the land use
management within the Dam property.
Hence the identification of the RMP.
Dam safety, with particular reference
to the uniqueness of the design of
Nagle Dam, is a limiting factor in
allowing recreational opportunities.
The RMP process will explore and
evaluate opportunities that may
harness the potential for utilising the
dam for recreational and economic
reasons, against core principles
underlying efficiency, sustainability
and equity.
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It is noted that Msinsi explores the
recreational and economic potential of
the dam. Due to the organisational life-
cycles of Umgeni Water and Msinsi,
the identified opportunities have not all
been implemented and the RMP will
attempt to provide an assessment of
all the identified opportunities. These
opportunities for the use of the Dam
need to be investigated through a
formal process in light of the various
encumbrances that may hinder such
use, as well as dam safety
requirements.
Through the provisions of the RMP,
the rights of the surrounding
community need to be safeguarded
whilst promoting stewardship for the
dam and state-owned land. This
endeavour will strive to build on the
existing collaborative stewardship that
Msinsi has established and maintained
with the communities in surrounding
traditional areas.
In terms of national priorities and the
associated endeavours of government, the
following triggers were identified for the
Nagle Dam RMP:
1. Protection of water resource
2. Protection of ecosystem goods and
services
3. Sustainable use of waterbody and
surrounding land
4. Unlocking socio-economic potential
5. Equitable access
It is noted that the above triggers were
formally accepted and adopted by the
Project Steering Committee (PSC) during
the inaugural PSC meeting that was held
on 28 July 2015. These triggers are not
necessarily in conflict with those identified
by Umgeni Water but serve to ensure
consistency with the motives for initiating
other RMPs for state dams and provide
alignment within the related overarching
principles.
1.4 RMP Process & Deliverables
The phases of the RMP development
process for Nagle Dam are shown in
Figure 1.
The RMP development process produced
the following deliverables:
Evaluating Process Triggers Report;
Project Plan and Encumbrance Survey
Report;
Vision and Objectives Report;
Research Report; and
RMP –
Institutional Plan;
Financial Plan;
Zonal Plan; and
Strategic Plan.
This document presents the RMP, which
is the culmination of the overall process,
and integrates the information contained in
the other deliverables to develop a
sustainable plan for the use and
management of Nagle Dam.
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Figure 1: Phases of the RMP Development Process for Nagle Dam
1.5 Assumptions, Gaps and
Limitations
The demarcation of the various zones
as part of the Zonal Plans was based
on the extent of the watercourses
(uMngeni River and Nagle Dam)
reflected in the latest aerial
photography received from Umgeni
Water. Going forward, these zones
need to be updated as follows:
The Surface Water Zonal Plan
needs to be based on the Full
Supply Level (FSL) of the Dam,
once confirmed, and
The Shoreline Zonal Plan needs to
be based on the 1:100 year
floodline or delineated riparian
zone (both to be determined),
whichever is greatest (as relevant).
A conservative approach was adopted
to demarcating the zones in the Zonal
Plans, in terms of ensuring the safety
of visitors, safeguarding infrastructure
and facilities at the Dam, as well as
protecting sensitive environmental
features.
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Where are we now?
OVERVIEW OF NAGLE DAM &
SURROUNDING ENVIRONMENT
2 SECTION
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2 OVERVIEW OF NAGLE DAM
2.1 Integrated Mgeni Water
Supply System
The Mgeni System in KwaZulu-Natal
(KZN) supplies water to approximately five
million people, as well as the industrial
sectors in the Durban and
Pietermaritzburg regions, the economic
hubs of the province. As shown in Figure
2, the Integrated Mgeni Water Supply
System (WSS) comprises the Midmar,
Albert Falls, Nagle and Inanda Dams, as
well as Mearns Weir and Spring Grove
Dam (commissioned in 2013).
Figure 2: Schematic of Integrated Mgeni WSS
Water is released from Albert Falls Dam to
Nagle Dam from where it is supplied from
two abstraction off-takes under gravity to
Durban Heights WTP. In addition, water
from Nagle Dam is also treated at
eMaphephetheni WTP (owned by Umgeni
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November 2016 8
Water) and Mkhizwana WTP (owned by
eThekwini Municipality). This water
primarily supplies the northern and central
parts, and to a lesser extent the western
part, of the eThekwini Municipality.
2.2 Nagle Dam
2.2.1 History
To meet increasing demands for water
after World War II, Durban’s engineers
sought a supply from the uMngeni River.
Nagle Dam was the first dam to be built on
the uMngeni River and was officially
opened on 19 April 1950. It served as an
important source of water for the city of
Durban but supply proved inadequate to
meet the ever increasing demand.
The ownership of Nagle Dam was
transferred from the then Durban
Corporation to Umgeni Water in 1983
(Umgeni Water, 2000). The dam was
registered with the then Department of
Water Affairs and Forestry on 26
November 1986 (Umgeni Water, 2015b).
The management of the Nagle Dam and
Game Reserve was transferred to what is
now Msinsi Holdings State Owned
Company (SOC) Limited (hereafter
Msinsi) in 1994 (Msinsi, 2015). Created in
1992 as Msinsi Holdings (Pty) Ltd, the
registration status of Msinsi changed in
April 2015 to that of a State Owned
Company, SOC Ltd (Msinsi, 2015). Msinsi
trades as “Msinsi Resorts & Game
Reserves” (Msinsi, 2015) and is a wholly-
owned subsidiary of Umgeni Water
(Msinsi, 2015).
The 1989 Dam Safety Inspection
“expressed concern about the spillway
capacity of the dam in relation to the
recommended design flood (RDF) and the
safety evaluation flood (SEF)” (Umgeni
Water, 2000). The 1998 dam safety
inspection confirmed the 1989 findings.
The dam safety inspections also identified
problems with the functioning of the
diversion gates in the diversion dam. The
then Department of Water Affairs and
Forestry instructed Umgeni Water “to
increase the spillway capacity of Nagle
Dam to be able discharge the full SEF,
and to refurbish the diversion dam gates”
(Umgeni Water, 2000). The six 6.1m wide
x 9.4m high diversion weir gates were
replaced between 2002 and 2004 (Umgeni
Water, 2015). The 5.8 high concrete mass
gravity diversion isolating structure was
completed in 2002 (Umgeni Water,
2015b). The emergency spillway (fuse
plug) was completed in 2002 (Umgeni
Water, 2015b). The saddle dam was
raised from 12m to 16m in 2002 (Umgeni
Water, 2015b).
The new abstraction point, which releases
water into Aqueducts 3 and 4, was
constructed in 1970 (Mhlophe pers.
comm., 2016).
2.2.2 Location
The impoundment is situated within the
jurisdiction of the uMgungundlovu District
Municipality (DM) and the Mkhambathini
Local Municipality (LM), and is
approximately 25 km east of
Pietermaritzburg (see Figures 3 – 5).
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November 2016 9
2.2.3 Ownership
Nagle Dam, including the shoreline and
remaining surrounding property (see
Figures 4 – 5), is owned by Umgeni
Water. In terms of the NWA, DWS
remains the custodian of the water.
2.2.4 Dam Operation
Umgeni Water operates Nagle Dam for
potable water supply. The DWS
management philosophy is to keep as
much water as possible in Midmar (the
highest dam in the system), to use Albert
Falls, via Nagle, to keep Durban supplied,
and to limit the abstractions from Inanda
only to that which cannot reliably be
supplied from higher up (Still et al, 2010).
Depending on the water demand, Nagle
Dam supplies water to Durban Heights
WTP 24 hours a day. Albert Falls Dam
acts as storage for Nagle Dam. When the
Nagle Dam Hydro Power system is
operational and the dam’s level drops
below 80 % additional water releases from
Albert Falls Dam is requested (Mhlophe
pers. comm., 2015).
Nagle Dam was built at the downstream
extremity of a horseshoe bend in the
uMngeni River and an upstream flood
diversion structure was provided with the
diversion channel cut through the
intervening divide. Heavily silt-laden
waters can thus be bypassed downstream
and the dam filled on the recession. Under
normal operating conditions, a 70 NTU
turbidity alert level has been set to warn
Operations of poor water quality flowing
into the dam. At 100 NTU, consideration
is given to diversion of the dam inflow,
dependent on the status of water
resources in the Mgeni System. Under
drought conditions, diversion is not usually
the preferred strategy, and the turbid
water is allowed to flow into the dam, but
is closely monitored.
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November 2016 10
Figure 3: Regional Locality Map
Nagle Dam
Albert Falls Dam
Midmar Dam
Inanda Dam
uMshwathi
Ndwedwe
uMgungundlovu
Msunduzi
Mkhambathini
eThekwini
uMngeni
Impendle
N3
iLembe
Original Scale at 1 : 320 000 on A4
uMgungundlovu DM
Mkhambathini LM
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November 2016 11
Figure 4: Topographical Map
Nagle Dam Property Boundary
NAGLE DAM RMP RMP (Draft)
November 2016 12
Figure 5: Aerial View of Nagle Dam
Nagle Dam Property Boundary
N
Maqongqo
Nkanyezini
Ezibananeni P26
P423
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November 2016 13
2.2.5 Dam Components
Key infrastructure components of the
Nagle Dam scheme include the following
(refer to numbered features in Figure 6):
1. Diversion channel;
2. Diversion weir with gates;
3. Emergency spillway (fuse plug);
4. Dam wall;
5. Saddle embankment;
6. “Old” abstraction off-take (off-take to
Nagle Aqueducts 1 and 2); and
7. “New” abstraction off-take (off-take to
Nagle Aqueducts 3 and 4).
Figure 6: Key components of the Nagle Dam scheme
Further details of certain of the key
components, as sourced from the Report
on the Fourth Dam Safety Evaluation of
Nagle Dam (Umgeni Water, 2015b), are
provided in Table 1.
Original Scale at 1 : 10 000 on A4
1
2
3
4
5
6
7
NAGLE DAM RMP RMP (Draft)
November 2016 14
Table 1: Details of certain key components of Nagle Dam (Umgeni Water, 2015b)
Components Description
Main Dam
1. Type of Dam: Concrete mass gravity with central uncontrolled ogee spillway
2. Maximum height above riverbed: 44,3m 3. Total crest length: 393m 4. Crest length of spillway: 122m 5. Surface area of water at FSL: 156,13ha 6. Catchment area: 2 545km
2
7. Storage capacity at FSL: 24 607 000m3
8. Recommended design flood: 3 730m3/s
9. Safety evaluation flood: 9500m3/s
10. Crest level (roadway): RL 410,30m 11. FSL: RL 403,81m 12. Date of completion: 1950 13. Designer: Durban Corporation 14. Date of registration: 1986/11/26 15. Classification: Category 3 (Large dam with high hazard rating)
Diversion weir with gates
1. Type of weir: Concrete mass gravity with central uncontrolled spillway
2. Maximum height above NGL: 13m 3. Total crest length: 274m 4. Crest length of spillway: 152m 5. No of gates: Six 6,1m wide x 9,4m high (Replaced between 2002
and 2004) 6. Crest level: RL 406,91 7. Date of completion: 1947 8. Isolating structure: 5,8m High concrete mass gravity structure
completed in 2002
Emergency spillway
1. Type of spillway: Zoned earth fill 2. Maximum height above NGL: 10,8m 3. Total crest length: 78m 4. Crest level: RL 410,50m 5. Date of completion: 2002
Saddle embankment
1. Type of dam: Homogenous earth fill 2. Maximum height above ground level: 16m 3. Total crest length: 315m 4. Crest level: RL 410,50m 5. Date of completion: Raised from 12 to 16m in 2002
2.2.6 Management of the Nagle Dam Property
Msinsi is mandated to manage the land
and biodiversity of the areas around the
dams owned or managed by Umgeni
Water in a way that balances the divergent
factors of local community development,
provision of recreational facilities for the
public and water resources/biodiversity
protection. Msinsi’s organogram for Nagle
Dam is provided in Figure 7.
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November 2016 15
Figure 7: Msinsi’s organogram for Nagle Dam
2.2.7 Dam Facilities
Key facilities at Nagle Dam include the following (refer to numbered features in Figure 8):
1. Msinsi Offices and Workshop;
2. Umgeni picnic site;
3. Learning Centre;
4. Soccer field;
5. Staff quarters;
6. Nagle lodge;
7. Hatchery lodge;
8. Aquaculture facilities (abandoned);
9. Umgeni Water Offices;
10. Main picnic area;
11. Canoe storage area;
12. Ablution facilities - main picnic area;
13. Msinsi lodge;
14. Conference centre;
15. Tented camp;
16. Deck; and
17. Outpost building.
PARK MANAGER
Senior Ranger
Corporal
Field Rangers
Security Officers
Driver, Handyman, Handyman Assistant, General Assistants
Customer Service Officers
Camp Attendants
Gate Attendants
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Figure 8: Key facilities of the Nagle Dam
2.2.8 Existing Uses at Nagle Dam
Permitted recreational activities
Permitted recreational activities at Nagle
Dam, with specific reference to the water
surface, are listed in Table 2.
The accommodation at Nagle Dam is
graded as three star.
The following accommodation restrictions
apply:
Hatchery Lodge sleeps 8, Nagle
Lodge sleeps 12 and Msinsi Lodge
sleeps 6; and
If the visitors are camping, they cannot
exceed 50. If the number exceeds 50,
portable toilets have to be added to
the existing ablutions.
Original Scale at 1 : 30 000 on A4
6 13
15
14
17
16 10 9
12
11
8
1
5
4
2
3
7
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Table 2: Permitted recreational activities at Nagle Dam (water surface)
Water Surface
No Contact
Hiking / Walking Trail
Birding
Game viewing
Accommodation
Picnic Areas
Primary Contact Swimming is prohibited
Secondary Contact
Fishing (shoreline and boats with electric motors)
Canoe / Kayak / Paddle Ski
User zones
According to the Reserve Management
Plan (Msinsi, 2012), the park is divided
into different user zones based on the
locations of the various management
zones, facilities available within each
zone, the objective for each area and the
characteristics of these areas within the
park. The zones are listed in Table 3 and
shown in Figure 9.
Table 3: Nagle Dam Management Units (Msinsi, 2012)
Zone Management Requirements
Wilderness: remote and quiet
Characterized by indigenous flora and fauna, hectares of almost undisturbed environments.
These are priority areas as they keep biological assets like game
There are very limited or no activities at all taking place within wilderness areas
Security of these zones is maintained by regular patrols by field rangers.
Vehicle movement is limited within wilderness areas.
Hunting activities take place once a year within wilderness zones
Low intensity
Low intensity zones have limited visitor activity. They are mainly zoned for tourists’ routes for activities like game drives, excursions and guided trails.
Very limited development takes place within these zones. Pruning of tree branches, cutting of trails and marking of vegetation (tree names) is about the only maintenance taking place.
Only a certain number of visitors can be allowed to access low intensity zones at controlled intervals
High intensity
This is the visitors playground, where all visitors meet for different activities be it accommodation, camp sites, special events, conferencing and picnicking.
There is high movement of controlled vehicles by visitors and staff personnel
The high intensity zone is characterized by a combination of visitor facilities and constant maintenance and minimized development.
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Figure 9: Nagle Dam Management Units
2.3 Environmental Governance
2.3.1 Legislative Framework
The RMP forms the overarching
framework for the management of Nagle
Dam. It is informed by relevant policy,
legislation and planning documents
administered by other Government
Departments. Similarly, these
Departments are required to duly consider
the RMP as part of their strategic planning
and decision-making functions.
A RMP is founded in the following key
sections of the NWA:
Section 2 – Purpose of the Act;
Section 3(1)-(3) – Public trusteeship of
nation's water resources;
Section 21(k) – Using water for
recreational purposes;
Section 26(1), (2) and (4) – Draft
Regulations; and
Section 113 – Access to and use of
government waterworks for
recreational purposes.
In addition, the Regulations published
under Government Notice (GN) No. R.
1046 of 30 October 2015 relate to the
access and use of Government
Waterworks and the surrounding state-
owned land for recreational purposes in
Original Scale at 1 : 30 000 on A4
NAGLE DAM RMP RMP (Draft)
November 2016 19
terms of the NWA. They are currently in
draft format and are expected to be
finalised at the end of 2016 (Mzanywa
pers. comm., 2016). The legal status of
approved RMPs will be enabled through
these Regulations once they have been
finalised and signed off by the Minister of
Water and Sanitation.
The main pieces of environmental and
development-related legislation governing
the use and management of Nagle Dam
and the surrounding land are presented in
the table to follow. Note: this list does not
attempt to provide an exhaustive
explanation, but rather an identification of
the most appropriate sections from
pertinent pieces of legislation.
Table 4: Environmental Statutory Framework
Legislation Relevance
Constitution of the Republic of South Africa
Chapter 2 – Bill of Rights.
Section 27(1)(b) – Environmental rights.
National Environmental Management Act (Act No. 107 of 1998) (NEMA)
Section 24 – Environmental Authorisation (control of activities which may have a detrimental effect on the environment).
Section 28 – Duty of care and remediation of environmental damage.
Environmental management principles.
Authorities – Department of Environmental Affairs (DEA) (national) and KZN Department of Economic Development, Tourism and Environmental Affairs (EDTEA) (provincial).
GN No. R 982 of 4 December 2014
Purpose - regulate the procedure and criteria as contemplated in Chapter 5 of NEMA relating to the preparation, evaluation, submission, processing and consideration of, and decision on, applications for environmental authorisations for the commencement of activities, subjected to Environmental Impact Assessment (EIA), in order to avoid or mitigate detrimental impacts on the environment, and to optimise positive environmental impacts, and for matters pertaining thereto.
GN No. R. 983 of 4 December 2014 (Listing Notice 1)
Purpose - identify activities that would require environmental authorisations prior to commencement of that activity and to identify competent authorities in terms of sections 24(2) and 24D of NEMA.
The investigation, assessment and communication of potential impact of activities must follow a Basic Assessment process, as prescribed in regulations 19 and 20 of GN No. R 982 of 4 December 2014.
GN No. R. 984 of 4 December 2014 (Listing Notice 2)
Purpose - identify activities that would require environmental authorisations prior to commencement of that activity and to identify competent authorities in terms of sections 24(2) and 24D of NEMA.
The investigation, assessment and communication of potential impact of activities must follow a Scoping and EIA process, as prescribed in regulations 21 - 24 of GN No. R 982 of 4 December 2014.
GN No. R. 985 of 4 December 2014 (Listing Notice 3)
Purpose - list activities and identify competent authorities under sections 24(2), 24(5) and 24D of NEMA, where environmental authorisation is required prior to commencement of that activity in specific identified geographical areas only.
The investigation, assessment and communication of potential impact of activities must follow a Basic Assessment process, as prescribed in regulations 19 and 20 of GN No. R 982 of 4 December 2014.
National Water Act (Act No. 36 of 1998) (NWA)
Section 2 – Purpose of the Act.
Chapter 3 – Protection of water resources.
Section 19 – Prevention and remedying effects of pollution.
Section 20 – Control of emergency incidents.
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November 2016 20
Legislation Relevance
Chapter 4 – Water use.
Section 21(k) – Recreational water use.
Section 26 – Regulations.
Section 113 – use of water and access and use of government waterworks for recreational purposes.
Authority – DWS.
National Environmental Management Air Quality Act (Act No. 39 of 2004) (NEM:AQA)
Air quality management.
Section 32 – dust control.
Section 34 – noise control.
Authority – DEA.
National Environmental Management: Biodiversity Act, 2004 (Act No. 10 of 2004) (NEM:BA)
Management and conservation of the country’s biodiversity.
Protection of species and ecosystems.
Authority – DEA.
National Environmental Management: Protected Areas Act (Act No. 57 of 2003) (NEM:PAA)
Protection and conservation of ecologically viable areas representative of South Africa's biological diversity and natural landscapes.
National Environmental Management: Waste Act (Act No. 59 of 2008) (NEM:WA)
Chapter 5 – licensing requirements for listed waste activities (Schedule 1).
Authority – Minister (DEA) or MEC (provincial authority).
National Forests Act (Act No. 84 of 1998) (NFA)
Section 15 – authorisation required for impacts to protected trees.
Authority – Department of Agriculture, Forestry and Fisheries (DAFF)
Minerals and Petroleum Resources Development Act (Act No. 28 of 2002) (MPRDA)
Purpose - equitable access to and sustainable development of the nation’s mineral and petroleum resources.
Authority – Department of Mineral Resources (DMR).
Occupational Health & Safety Act (Act No. 85 of 1993)
Provisions for Occupational Health & Safety
Authority – Department of Labour.
National Heritage Resources Act (Act No. 25 of 1999) (NHRA)
Section 34 – protection of structure older than 60 years.
Section 35 – protection of heritage resources.
Section 36 – protection of graves and burial grounds.
Section 38 – Heritage Impact Assessment for linear development exceeding 300m in length; development exceeding 5 000m
2 in extent.
Authority – Amafa aKwaZulu-Natali.
KZN Heritage Act (Act No. 04 of 2008)
Conservation, protection and administration of both the physical and the living or tangible heritage resources of KZN.
Authority – Amafa aKwaZulu-Natali.
Conservation of Agricultural Resources Act (Act No. 43 of 1983) (CARA)
Conservation of natural agricultural resources.
Control measures for erosion.
Control measures for alien and invasive plant species.
Authority – KZN Department of Agriculture and Rural Development (DARD).
Spatial Planning and Land Use Management (Act No. 16 of 2013) (SPLUMA)
Provides a framework for spatial planning and land use management in South Africa.
Authority - Municipality
KwaZulu-Natal Nature Conservation Management Act (Act No. 09 of 1997).
Institutional bodies for nature conservation in KZN.
Establish control and monitoring bodies and mechanisms.
Authority - Ezemvelo KZN Wildlife (EKZNW).
National Road Traffic Act (Act No. 93 of 1996)
Authority – Department of Transport (DoT).
Draft Policy and Bill on Provides for the preservation of agricultural land, Protected Agricultural Areas,
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November 2016 21
Legislation Relevance
Preservation and Development of Agricultural Land
use of agricultural land, applications on agricultural land and Agro-ecosystem Reports (amongst others).
Authority – DAFF.
Tourism Act of 1993 Authority – South African Tourism Board.
Mkhambathini Municipality Spatial Planning and Land Use Management Bylaw (KZN Provincial Gazette No, 1579, 15 January 2016)
Authority – Mkhambathini Local Municipality
In addition, the following pieces of
legislation may be relevant to an RMP:
Public Finance Management Act (Act
No. 1 of 1999);
Municipal Systems Act (Act No. 32 of
2000);
Communal Land Right (Act No. 11 of
2004);
Restitution of Land Rights Act (Act No.
22 of 1994);
Intergovernmental Relations
Framework Act (Act No. 13 of 2005);
Disaster Management Act (Act No. 57
of 2002);
Water Services Act (Act No. 108 of
1997);
State Land Disposal Act (Act No. 48 of
1961);
Land Administration Act (Act No. 2 of
1995);
Merchant Shipping Act (Act No. 57 of
1951);
Merchant Shipping (National Small
Vessel Safety) Regulations 2007 GN.
No. R704;
South African Maritime Safety
Authority Act (Act 5 of 1998);
Safety at Sports and Recreational
Events Act (Act No. 2 of 2010);
Broad-based Black Economic
Empowerment Act (Act No. 53 of
2003); and
National Treasury Regulations in
respect of procurement and Public
Private Partnerships (15 March 2005).
2.3.2 Management Functions of Key Government Departments
The RMP endeavours to consolidate the
roles and functions of the various relevant
Government Departments into a coherent
management platform with a specific focus
on Nagle Dam.
Table 5 lists the key Departments and
some of their functions that may have
bearing on the RMP study area. The
functions are linked to the legislative
mandates of the various Departments,
which is discussed further in Section 2.3.
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November 2016 22
Table 5: Government Department with Management Functions related to Nagle Dam
(Note: list of functions are not exhaustive)
Key Departments Key Objectives / Obligations / Services /
Functions Relevance to Nagle Dam
DEA
Promote the enhancement of natural resources for sustainable equitable use and protect and enhance the quality and safety of the environment.
Ensure the regulation and management of all biodiversity.
Provide environmental information in support of effective environmental management and public participation in environmental governance.
Biodiversity management. Regulation of invasive alien
species (terrestrial and aquatic). Competent authority for an EIA
where Umgeni Water is the applicant, as per Section 24C of NEMA.
Compliance and enforcement of environmental incidents.
National Treasury
Coordinating macroeconomic policy and promoting the national fiscal policy framework.
Coordinates intergovernmental financial relations, manages the budget preparation process and exercises control over the implementation of the annual national budget, including any adjustments budgets.
The use of State-owned assets is governed by National Treasury Regulations, requiring Umgeni Water to plan concessions in compliance or association with National Treasury, guided by the Tourism Public Private Partnership (PPP) Toolkit of 2005.
KZN EDTEA
Environmental Planning, Governance & Information Management.
Coastal & Biodiversity Management. Pollution & Waste Management. Compliance, Monitoring and Enforcement. Air Quality and Climate Change.
Competent authority for an EIA as per Section 24C of NEMA.
Compliance and enforcement of environmental incidents.
Commenting authority for planning applications.
Management requirements for Nagle Dam in terms of planning tools, such as the Strategic Environmental Assessment (SEA) and SEMP, Environmental Management Framework (EMF) (when relevant), Umgungundlovu DM’s Biodiversity Sector Plan (BSP), etc.
DMR
Regulate the minerals sector - developing new policies, reviewing of existing policies and amending legislation to make them current to evolving an environment and achieving transformation in the minerals and mining industry
Protect the environment – promote the reduction of the impact of mining activities on the environment and public health through management of rehabilitation of ownerless and derelict mines, research and development in mine environmental management and development of mine environmental policies.
Competent authority for mining related activities in terms of NEMA and MPRDA.
Not aware of any current development pressures as a result of mineral resources.
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Key Departments Key Objectives / Obligations / Services /
Functions Relevance to Nagle Dam
DWS
Official custodian of all water resources in South Africa.
Forecasting and balancing of water demand and supply.
Ensure adequate information and knowledge to sustainably manage water resources.
Ensure protection of water resource quality and quantity.
Ensure water service delivery through policy and regulation.
Regulation of dam safety. DWS NWRIB checks that the
Nagle Dam RMP is compiled in a procedurally correct manner and meets the requisite statutory requirements in terms of the NWA.
Core member of the institutional structure for the management of Nagle Dam.
Regulation of water use and pollution incidents in terms of the NWA.
Resource Directed Measures (RDM) - objectives for the desired level of protection of the resource – Reserve, Classification System, Resource Quality Objectives.
Source Directed Controls (SDCs) – measures to control water use, e.g. water quality standards for waste water, waste water discharges, pollution prevention, and waste minimisation technologies.
National monitoring and information systems – address the monitoring, recording, assessing and dissemination of information on water resources.
Administrative duties related to the uMngeni River Catchment Management Forum.
KZN DARD
Agriculture Advisory and Extension Services.
Agriculture Development Services. Engineering (Infrastructure and Land care
support). Research and Technology Development
Services. Rural development and coordination.
Development controls for Agricultural Land Potential Categories A – E and areas with Combined Agro-biodiversity Designation.
DAFF
Promote, regulate and co-ordinate the sustainable use of natural agricultural resources.
Set norms and standards for indigenous forests and woodland management.
Develop rehabilitation programmes for woodlands and indigenous forests
Manage the conservation planning and compliance with the national management frameworks.
Regulatory authority for protected trees in terms of the NFA.
Regulation of fishing. Regulation of and support to
aquaculture.
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November 2016 24
Key Departments Key Objectives / Obligations / Services /
Functions Relevance to Nagle Dam
Department of Rural Development and Land
Reform (DRD&LR)
Settlement of land restitution claims and the provision of settlement support to beneficiaries.
Provide geospatial information, cadastral surveys, deeds registration and spatial planning, as well as technical services in support of sustainable land development.
Initiate, facilitate, coordinate and catalyse the implementation of a Comprehensive Rural Development programme.
Settlement of land claims (as relevant in the future).
No known land claims at present.
EKZNW
Biodiversity conservation. Wise and sustainable use of natural
resources. Creation and management of partnerships
with stakeholders and communities. Provision of affordable eco-tourism
destinations within the Province. Identification and mapping of important
biodiversity features in KZN. Custodian of the Provincial Conservation
Plan.
Species-based (listed species) and area-based conservation (protected areas, protected eco-systems).
Biodiversity stewardship. Permitting of activities (threatened
species). Management requirements for
Nagle Dam in terms of Umgungundlovu DM’s BSP, where Nagle Dam falls within Critical Biodiversity Areas (CBAs) and Ecological Support Areas (ESAs).
Amafa aKwaZulu-Natali
Provincial heritage conservation agency for KZN.
Protection and preservation of cultural and heritage resources through approvals for development permits.
Issuing of permits for protection heritage resources, graves, archaeological and paleontological sites in terms of the KZN Heritage Act (Act No. 04 of 2008).
Execution and approval of Heritage Impact Assessments for certain developments (e.g. linear development exceeding 300m in length; development exceeding 5 000m
2 in extent).
DoT
Responsible for legislation, policy and regulations for all transportation in South Africa, including shipping and other transport by water or sea, including inland waterways.
Ensure boating safety.
KZN DoT
Effectively management the road infrastructure network through the planning, construction, repair and maintenance of a balanced road network.
Promote a safety road environment through the provision of a safe, regulated road environment through Education, Enforcement, Engineering and Evaluation.
Maintenance of the access roads to Nagle Dam, including the P26 and the P423.
South African Maritime Safety Authority
(SAMSA)
Administration of the Merchant shipping (National Small Vessel Safety) Regulation, 2007, as amended. The Regulations extends SAMSA’s Core mandate to include inland waterways (only waterways accessible to the public) within the Republic.
Ensure safety of boats (vessels) and that the skippers are compliant with legal requirements.
Requirements for fixed and/or floating Aids to Navigation (AtoN) for general navigation on Nagle Dam.
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Key Departments Key Objectives / Obligations / Services /
Functions Relevance to Nagle Dam
South African Police Service (SAPS)
Prevent and combat crime. Investigate any crimes that threaten the
safety and security of any community.
The SAPS Water Wing division will form part of the Unique Positioning Number (UPN) response team. They will assist in terms of life threatening emergencies that might occur at the dam
uMgungundlovu DM
Services provided in terms of section 84(1) of the Municipal Structures Act (Act No. 117 of 1998), which include (amongst others): Integrated development planning for the
District as a whole with alignment to the Integrated Development Plans of the local municipalities in the District.
Supply of water and sanitation to six of the local municipalities.
Sewage purification works and sewage disposal at six of the local municipalities in the District.
Solid waste management through-out the District.
Emergency services (Fire and Disaster Management) in six of the local municipalities.
Establishment and management of cemeteries and crematoria in six of the local municipalities in the District.
Promotion of local economic development Promotion of tourism development in the
District Town and Regional Planning and
Geographic Information services throughout the District.
Environmental Health Services. Municipal public works relating to any of
the above services or any other functions assigned to the District Municipality.
The imposition and collection of service charges, taxes, levies and duties as related to the above functions or as maybe assigned to the District Municipality.
Review of planning applications. Management requirements for
Nagle Dam in terms of planning tools, such as the SEA and SEMP, EMF, SDF, Land Use Management Scheme (LUMS), Umgungundlovu DM’s BSP, etc.
Mkhambathini LM
Municipal planning. Building regulations. Local tourism. Control of public nuisance. Municipal roads.
Review of planning and building applications.
Management requirements for Nagle Dam in terms of planning tools, such as the SEA and SEMP, EMF, IDP, SDF, LUMS, etc.
2.3.3 Existing Policies, Strategies, Plans and Programmes
Amongst others, the following institutional
initiatives (including policies, strategies,
plans and programmes), which have a
bearing on the governance and proposed
management of the study area, were
taken into consideration to ascertain the
NAGLE DAM RMP RMP (Draft)
November 2016 26
objectives and desired state of Nagle
Dam:
KZN Systematic Conservation
Assessments (SCAs) and associated
outputs, including the Umgungundlovu
DM’s BSP, as well as CBAs and
ESAs;
Municipal (both district and local) IDP,
SDF and LUMS;
uMgungundlovu DM’s SEA and
SEMP;
Reserve Management Plan for Nagle
Dam and Game Reserve (Msinsi,
2012);
Infrastructure Master Plan: 2015/2016
– 2045/2046 (Umgeni Water, 2015a);
Report on the Fourth Dam Safety
Evaluation of Nagle Dam (Umgeni
Water, 2015b);
Environmental Management Plan for
Nagle Dam – Operational Phase
(Umgeni Water, 2015c);
Classification of Water Resources and
Determination of the Comprehensive
Reserve and Resource Quality
Objectives in the Mvoti to Umzimkulu
Water Management Area (WMA):
Status quo assessment (DWA, 2013);
Internal Strategic Perspective: Mvoti to
Mzimkulu WMA (DWAF, 2004); and
Cooperative Inland Waterways Safety
Programme (CIWSP), which is a
partnership between multiple
government entities and between the
government and the community. The
aim is to enhance the development of
a best practice model to ensure a safe
and structured inland maritime
environment and culture, whilst
protecting the country’s water
resources. The RMP integrates
information from the CIWSP into the
management objectives for the Dam.
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2.4 Biophysical Environment
The information to follow was extracted
from the Nagle Dam RMP Research
Report (Umgeni Water, 2016d). The
reader is referred to the aforementioned
document for more detailed information
(including associated maps) pertaining to
the environmental features that are
succinctly discussed in the sub-sections to
follow.
2.4.1 Climate
According to Msinsi (2012), Nagle’s
temperature is mostly influenced by the
tropical weather conditions of Durban and
therefore relatively warm both summer
and winter. Summer temperatures vary
from 26°C to 40°C with very limited air
flow due to surrounding hills. Winter
temperatures vary from a cold 4°C in the
morning and at night to a hot 27°C during
the day.
Nagle Dam is known for its calm waters.
This can be attributed to the surrounding
topography (low undulating mountains),
which serve to buffer the impoundment.
Dense vegetation in parts of the
surrounding area provides surface friction
that also slows down the movement of air.
2.4.2 Geology & Soils
The geology of Nagle Dam is formed by
the deposition of the Natal group sand
stone which was the first sediments of the
new continent about 490 million years
ago. The geology is mainly Natal group
and Natal metamorphic province granite
(see Figure 10). Most of these were
deposited by the rivers that drained from
the highlands to the northeast. Further to
the south the sediments are finer grained
and forms resistant sand stone cliffs which
give rise to the table top topography as
seen in the Valley of a Thousand Hills in
KZN (Msinsi, 2012).
Figure 10: Simplified geology (Vorster, 2003)
Original Scale at 1 : 50 000 on A4
NAGLE DAM RMP RMP (Draft)
November 2016 28
According to DWAF (2004), soil cover
throughout the area is generally shallow
and is strongly parent-material related due
mainly to the prevailing topographic
conditions. Soils are mainly of sandy types
developed on quartzose rocks, or clayey
soils developed on argillaceous and basic
igneous and metamorphic rocks. Deeper
transported soils are present as colluvium
on lower slopes, with alluvium occurring in
valley bottoms.
2.4.3 Topography
The terrain morphology of the area in
which Nagle Dam is located is dominated
by highly dissected low undulating
mountains. Steep gradients are
encountered along the majority of the
northern shoreline of the dam. The land in
the main reserve contains steep gradients,
which is characteristic of the greater
area’s Valley of a Thousand Hills.
2.4.4 Surface Water
Catchment Overview
Nagle Dam falls within the Pongola-
Mtamvuna WMA, and is situated in the
U20G quaternary catchment (see Figure
11). The dam is also fed from the U20F
quaternary catchment.
Figure 11: Quaternary Catchments that form part of the uMngeni Catchment (main dams shown)
Original Scale at 1 : 320 000 on A4
Nagle Dam
Albert Falls Dam
Midmar Dam
Inanda Dam
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November 2016 29
Nagle Dam is situated on the slow
perennial flowing uMngeni River. The
confluence of the uMngeni River with the
Mkhabela River is located in the
wilderness area of the Nagle Dam
Property. The Mbhava River flows into the
main stem of the uMngeni River
downstream of the dam. Refer to Figure
12.
Figure 12: Watercourses surrounding Nagle Dam
(Source: South African 1:50000 topographical map vector data)
The uMngeni River system is largely
regulated and developed. The catchment
is serviced by Midmar Dam, Albert Falls
Dam, Nagle Dam and Inanda Dam, as
well as the Mooi-Mgeni transfer scheme.
Nagle Dam has a unique hydrological
regime that is not subject to great
seasonal fluctuations as it receives a
steady input all the year round by water
discharged from Albert Falls Dam for raw
water abstraction for treatment.
The major land cover encountered in the
U20G quaternary catchment includes
thicket and bushland, followed by
commercial sugarcane. Thereafter it is
grassland and forestry, followed by
cultivated land (subsistence, commercial
and grass). Lastly, some residential areas
Original Scale at 1 : 50 000 on A4
uMngeni
NAGLE DAM RMP RMP (Draft)
November 2016 30
(primarily scattered rural settlements) and
degraded land (unimproved grassland) are
also found in the quaternary catchment.
Ecological Integrity
A significant contributor to the reduced
ecological integrity of the river reaches
between Albert Falls Dam and Nagle Dam
is flow regulation. As mentioned, a
continuous base flow is released from
Albert Falls Dam which alters the flow
regime by excluding seasonality.
According to Hunter (pers. comm., 2016),
it should be noted that the river’s width
has increased where possible and due to
constant flow the river’s fluvial
geomorphology has changed to
accommodate this flow. In addition, the
Mpolweni and Cramond Rivers flow into
the uMngeni River well upstream and near
Albert Falls, which contribute not only to
the sediment load but also increase flow at
times of flooding in the main stem (Hunter
pers. comm., 2016).
Nagle Dam also affects the flow regime in
the downstream aquatic environment.
Poor water quality and impacts to the
riparian and instream habitats also
deteriorate the ecological state of the river.
The Chief Directorate: Resource Directed
Measures of DWS initiated a study during
2012 to undertake the Comprehensive
Reserve, classify all significant water
resources and determine the Resource
Quality Objectives (RQOs) in the then
Mvoti to Umzimkulu WMA. An Ecological
Water Requirements (EWR) site (see
Figure 13) was selected as part of the
Reserve Determination. The summarised
EcoClassification results for this site
(Mg_I_EWR5) are as follows:
Ecological Importance and Sensitivity
(EIS): MODERATE -
Highest scoring metrics were
diversity of habitat types and
features, taxon richness and rare
and endangered riparian species.
Present Ecological State (PES): D -
Decreased baseflows and floods
due to upstream dams and general
land use in the upper catchment;
Reduced habitat abundance;
Deteriorated water quality;
Alien invasive vegetation species,
vegetation removal and sand
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November 2016 31
mining leading to a general loss of
connectivity and bank modification;
Presence of two predatory alien
fish species in the reach.
Figure 13: EWR site below Nagle Dam
Recommended Ecological Category
(REC): D -
EIS was Moderate and the REC
was therefore set to maintain the
PES.
It should be noted that Mg_I_EWR5 is
located downstream of the confluence of
the Msunduzi River with the uMngeni
River, and that the former river
fundamentally changes the water quality in
the mainstem.
River Freshwater Ecosystem Priority
Areas (FEPAs) include the Mpolweni River
(U20F quaternary catchment) and
Mkhabela River (U20G quaternary
catchment). A Fish Support Area and Fish
Corridor also occur on the Sterkspruit
(U20F quaternary catchment). The
management of the FEPA River and the
associated sub-catchments in accordance
with their intended objectives will
contribute towards improving water quality
and aquatic biodiversity in Nagle Dam.
Aquatic Alien Invasive Species
Although aquatic alien invasive plant
species are not a current problem at Nagle
Dam, the potential spread or proliferation
of such species is a potential risk. Species
that pose a threat in the Nagle Dam
Catchment include:
Pistia stratiotes (Water Lettuce);
Nagle Dam
uMngeni River
Msunduzi River
NAGLE DAM RMP RMP (Draft)
November 2016 32
Eichhornia crassipes (Water
Hyacinth); and
Salvinia molesta (Kariba Weed).
A multi-stakeholder working group, which
promotes the eradication of alien aquatic
weeds by the use of biocontrol agent,
herbicides and manual removal, is active
in the catchment.
Water Quality
The relevance of the subuser groups
associated with recreational use (inked to
water quality) in terms of Nagle Dam is as
follows:
Full contact recreation - Although
swimming at Nagle Dam is prohibited,
the surrounding community may
informally use the basin for full contact
(swimming or bathing);
Intermediate-contact recreation -
Canoeing and angling are the most
popular recreational activities at the
dam; and
Non-contact recreation - The
accommodation facilities and non-
contact recreational activities at Nagle
Dam rely on the aesthetic qualities of
the waterbody.
Umgeni Water undertakes water quality
monitoring at Nagle Dam at the following
points (see Figure 14):
1. DNG004 - Nagle Main Basin
Integrated (near dam wall);
2. DNG037 - Nagle New Abstraction
Integrated;
3. RMG015 - uMngeni Nagle Dam Inflow;
and
4. RMG016 - uMngeni downstream of
Nagle Dam.
Figure 14: Water quality monitoring points DNG004 and DNG037
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November 2016 33
Potential sources of water quality impacts
upstream of Nagle Dam include:
Agricultural activities (nutrients,
biocides and other pollutants);
Animal feedlots, abattoirs and
crocodile farms (nutrients and
pathogens);
Timber plantations (harvested related
erosion, nutrient release, alien weed
invasion and poor river channel
management);
Waste disposal sites;
Waste Water Treatment Works
effluent and sewage discharges
(nutrients and pathogens); and
Human settlements (land clearing and
overgrazing which increase turbidity,
nutrients and pathogens).
A Water Quality Assessment was
undertaken as part of the RMP, which
evaluated the fitness of the water for
recreational use over time, as well as the
present trophic status of the dam. The
temporal analysis and comparison of the
water quality at two monitoring points
(Nagle Main Basin Integrated and Nagle
New Abstraction Integrated) within Nagle
Dam indicate that:
The Dam is likely to be in a stable
oligotrophic state, with a mostly
moderate nuisance of algal bloom
activity, and a moderate potential for
algal and plant productivity;
Nagle Dam can be considered suitable
for full, intermediate and non-contact
recreational use in general, however,
rare water quality conditions do occur
that make it unsuitable for uses and
In the event of an algal bloom, suitable
control and management actions need
to be implemented (as applicable).
Biomonitoring
Umgeni Water conducts biomonitoring by
employing the South African Scoring
System 5 (SASS 5) tool to assess the river
health at the following sampling points:
1. RMG013 - weir upstream of Dam; and
2. RMG016 - uMgeni downstream of
Dam.
Biomonitoring results at these sampling
points are presented in Figure 15.
Figure 15: SASS 5 data compared for RMG013 and RMG016
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November 2016 34
In most cases, the SASS 5 scores,
referred to as Biotic Integrity (BI), were
lower at the downstream sampling point
compared to the results at the upstream
point (for the period March 2011 to
December 2014). The results could reflect
better habitat conditions at the upstream
point, or could relate to the water quality at
the two sites. Insufficient data is available
to draw further conclusions in this regard.
2.4.5 SEA & SEMP
The uMgungundlovu DM undertook a SEA
and developed a SEMP, which serves as
a pro-active tool that will guide decision-
making within the district from an
environmental management perspective
(uMgungundlovu District Municipality,
2012). According to the SEA, Nagle Dam
is identified as a water quality
environmental control zone (ECZ) which is
spatially defined as a one kilometre buffer
of the dam upstream of the dam wall, with
associated control measures.
2.4.6 Flora
Biomes & Vegetation Types
Scott-Shaw and Escott (2011) described
the study area as falling within the
Grassland and Savanna Biomes. The
vegetation types on the property coincide
with the biomes and include Dry Coast
Hinterland Grassland and Eastern Valley
Bushveld (see Figure 16).
Figure 16: Vegetation types
The following threatened terrestrial
ecosystems occur at the Nagle Dam
property:
Ngongoni Veld (Vulnerable) -
wilderness area and section of the
property cut off by the P26;
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NAGLE DAM RMP RMP (Draft)
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Umgeni Valley Bushveld (Endangered)
– mostly along northern boundary of
the property; and
New Hanover Plateau (Critically
Endangered) – mostly along eastern
and southern boundary of the
property, as well as on the peninsula.
The Environmental Impact Report
compiled by SRK Consulting (2000) for
the Nagle Dam Spillway Betterment
included the following observations in
terms of the vegetation on the property:
Most of the area around the dam has
been disturbed to different degrees;
The picnic site and the around Msinsi’s
and Umgeni Water’s infrastructure and
the hatchery is mostly grassland with
patches of exotic and indigenous
trees;
The natural neck to the peninsula is
mainly savanna, with an area of closed
canopy woodland on the left hand
abutment of the main dam wall;
The area to the east of the saddle
embankment comprises dense,
wooded savanna;
Vegetation on the slopes north of the
river, below the dam wall and the
alluvial bottom of the river valley
comprises mostly woodland, with
patches of open savanna and
grassland;
The woodland below the main dam
wall is a disturbance feature, however,
because the flow in the river from the
main dam itself has diminished (most
downstream flow comes from the
diversion channel which enters the
river course about 500m downstream
of the main dam wall), leaving a river
bed in which vegetation has
established itself. In the event of a
major flood, much of this vegetation
would be destroyed; and
Almost all areas of the reserve have
dense infestations of invasive exostic
species, notably Lantana (Lantana
camara), Chromolaena (Chromolaena
odorata) and Bugweed (Solanum
mauritanum), which form an
impenetrable understorey. Msinsi
implements a terrestrial alien plant
eradication programme which aims to
restore the vegetation on the
peninsula and the western parts of the
reserve to its natural state.
Refer to the RMP Research Report for the
lists of flora species recorded in the Nagle
Dam reserve as well as surrounding
region.
NAGLE DAM RMP RMP (Draft)
November 2016 36
2.4.7 Fauna
General observations with regards to
fauna at Nagle Dam follow:
Mammals -
Oribi (Ourebia ourebi), Blue Duiker
(Philantomba monticola), Side-
striped Jackal (Canis adustus) and
Common Dasymys (Dasymys
incomtus) were mammal species
of conservation importance known
to occur in the region.
Some of the animals that
historically occurred in the area
were reintroduced to maximize the
biodiversity value of the park
(Msinsi, 2012). Large mammals in
the reserve include Giraffe (Giraffa
camelopardalis), Impala
(Aepyceros melampus), Kudu
(Tragelaphus strepsiceros), Zebra
(Equus burchelli), Nyala
(Tragelaphus angasii), Blue
Wildebeest (Connochaetes
taurinus), Warthog (Phacochoerus
africanus) and Grey Duiker
(Sylvicapra grimmia).
Avifauna -
According to SRK Consulting
(2000), the savanna, open and
closed woodland, as well as
riverine and dam aquatic
ecosystems provide a diversity of
habitats for a large number of bird
species.
There are no Important Bird &
Biodiversity Areas near Nagle
Dam.
Herpetofauna (Reptiles and
Amphibians) -
Large-scaled Grass Lizard
(Chamaesaura macrolepis) is the
reptile species of conservation
importance known to occur in the
region (grid cell).
Only one Red data frog species is
known to occur in the region
namely Spotted Shovel-nosed
Frog (Hemisus guttatus).
African Rock Pythons (Python
sebae) are also commonly seen on
the property by the Msinsi staff.
Fish -
According to SRK Consulting
(2000), several introduced and
indigenous fish live in Nagle Dam,
including Scaly Yellowfish (Barbus
natalensis) and Wide-mouthed
Bass (Micropterus salmoides).
NAGLE DAM RMP RMP (Draft)
November 2016 37
Refer to the RMP Research Report for the
lists of fauna species recorded in the
Nagle Dam reserve as well as surrounding
region.
2.4.8 Critical Biodiversity Areas
According to EKZNW (2014), a Critical
Biodiversity Area (CBA) means natural or
near-natural features, habitats or
landscapes (terrestrial, aquatic and
marine) that are considered critical for (i)
meeting national and provincial
biodiversity targets and thresholds (ii)
safeguarding areas required to ensure the
persistence and functioning of species and
ecosystems, including the delivery of
ecosystem services; and/or (iii) conserving
important locations for biodiversity
features or rare species.
CBAs in relation to the Nagle Dam
property are shown in Figure 17. CBA:
Irreplaceable Areas mostly coincide with
threatened terrestrial ecosystems. CBA:
Optimal Areas include portions of the
wilderness area and the area cut off by the
P26, as well as pockets of land to the
north of the uMngeni River.
Figure 17: CBAs
2.4.9 Protected Areas
Msinsi manages the the Nagle Dam
Reserve in a manner that enhances
biodiversity values while at the same time
providing access for recreation to the
public (Msinsi, 2012). The wilderness area
in particular has a conservation focus.
Although the reserve does not have any
formal protection status in terms of
NEM:PAA, Msinsi may want to pursue
declaring it as a protected area. This will
impose management obligations to ensure
that this status is achieved and
maintained.
Original Scale at 1 : 50 000 on A4
Original Scale at 1 : 50 000 on A4
NAGLE DAM RMP RMP (Draft)
November 2016 38
2.4.10 Historical and Cultural Features
Various infrastructure associated with
Nagle Dam is older than 60 years and is
afforded protection through the KZN
Heritage Act (Act No. 04 of 2008).
According to Msinsi (Mhlophe pers.
comm., 2015), a grave yard is located in
the southern side of the dam. The graves
are also protected in terms of the
aforementioned legislation.
There is evidence of artefacts along the
uMngeni River below Table Mountain,
where terraces mark the position of
ancient parts of the river bed (eThembeni
Cultural Heritage, 2011).
According to Msinsi (2012), Nagle Dam is
surrounded by communities that are
deeply rooted in culture, with the Manyavu
Traditional Authority being the dominant in
cultural practices and its people wear
traditional clothing.
2.4.11 Air Quality
Due to the rural nature of the surrounding
area, the air quality is regarded to be
good. Localised impacts to air quality
include burning of fossil fuels, emissions
from vehicles travelling on the surrounding
road network, dust from un-vegetated
areas and dirt roads, smoke (veld fires
and seasonal burning of sugar cane),
agricultural activities, and methane
release from larger livestock. In the
greater area, air quality is influenced by
anthropogenic activities in urbanised
areas such as Pietermaritzburg,
Camperdown and Cato Ridge.
Sensitive receptors to dust and other air
quality impacts in the area include human
settlements and sensitive fauna and flora.
2.4.12 Agricultural Potential
According to the Department of Agriculture
and Rural Development (Mashele pers.
comm., 2015), a considerable portion of
the property is located on high potential
agricultural land (Category B of the KZN
Agricultural Land Categories). Category B:
Threatened is defined as moderate to high
potential agricultural land and has the
potential to be used sustainable, with few
limitations to agricultural production (Collet
and Mitchell, 2012). Category E: Mixed
Agricultural Land is also encountered on
site, which is regarded as land with limited
to no potential for agricultural production.
No formal agricultural activities take place
within the property.
NAGLE DAM RMP RMP (Draft)
November 2016 39
2.5 Socio-Economic Environment
The information to follow was also
extracted from the Nagle Dam RMP
Research Report (Umgeni Water, 2016d).
2.5.1 Land Use & Land Cover
Nagle Dam is situated in a rural area, with
scattered traditional settlements
surrounding the property. The pattern of
settlement has been influenced by
geographical, biophysical and land tenure
features. Surrounding land uses include
small-scale and subsistence farming and
grazing on Traditional Authority land.
The land cover, based on the South
African National Land Cover Dataset
(2013/2014), is shown in Figure 18. The
majority of the property and greater
surrounding area is characterised by
thicket / dense bush, with pockets of
grassland. Settlements occur around the
property, which includes areas cleared to
make way for dwellings and subsistence
agriculture, and is also due to heavy
grazing and some bush clearing for
firewood.
Figure 18: Land Cover (© GEOTERRAIMAGE - 2014)
Original Scale at 1 : 40 000 on A4
NAGLE DAM RMP RMP (Draft)
November 2016 40
2.5.2 Land Tenure
The Nagle Dam Property (land within
purchase line) belongs to Umgeni Water.
The land surrounding Nagle Dam belongs
to the Ingonyama Trust Board (ITB) and
falls under the following three Traditional
Authorities (see Figure 19):
1. Gcumisa Traditional Authority to the
north and east;
2. Mapumulo Traditional Authority to the
west; and
3. Mdluli / Manyavu Traditional Authority
to the south.
Figure 19: Traditional Authorities
2.5.3 Socio-Economic Profile
The Research Report includes data
pertaining to the socio-economic profile,
based on Census 2011, for the
Mkhambathini LM (Wards 1 and 2) and
the uMshwathi LM (Ward 6). Refer to
Figure 20. The profile of these areas is
similar to what is encountered in many of
the other rural parts of KZN.
NAGLE DAM RMP RMP (Draft)
November 2016 41
Figure 20: Wards included in socio-economic profile
2.6 Encumbrances
As part of the RMP deliverables, an
Encumbrance Survey (Umgeni Water,
2016b) was conducted to establish
whether there are any hindrances to the
RMP process or limitations associated
with the utilisation of the dam and the
surrounding property for recreational
purposes.
The encumbrances and key management
considerations related to recreational
opportunities at Nagle Dam were
categorised as follows:
Encumbrances identified during Public
Participation -
As part of Public Participation to
date, all stakeholders were asked
to identify strengths, weaknesses,
opportunities and threats (i.e.
SWOT Analysis) for the Dam. The
weaknesses and threats assisted
with the identification of potential
encumbrances.
Biophysical encumbrances -
Water quality -
Various sources of water
quality impacts upstream of
Nagle Dam;
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NAGLE DAM RMP RMP (Draft)
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Poor water quality may pose
health risks to full-contact
recreational users;
The dam’s water quality has a
significant impact on the cost of
treating water;
No documented proof was found
that provision is made in the
operating rule for releasing the
EWR;
Any proposed recreational use
needs to ensure that the spread of
alien plants is prevented and
should not compromise the
existing management efforts at
Nagle Dam;
The presence of alien fish species
causes the displacement of
indigenous competitor species and
leads to predation on indigenous
species;
Large portions of the Nagle Dam
property fall within Critical
Biodiversity Areas;
The Biodiversity Sector Plan
classifies Nagle Dam as an
“ecological support area which
means that it is an area that
supports key biodiversity and
ecological processes such as
water production and corridors in
the landscape”. The land
management objective identified
for this area is to “maintain near-
natural with limited eco-service and
biodiversity loss”;
Animals kept at the Nagle Dam
Game Reserve are at particular
risk of poaching;
A considerable portion of the
property is located on high
potential agricultural land;
Steep gradients are encountered
along the majority of the northern
shoreline of the dam; and
The land in the main reserve
contains steep gradients, which is
characteristic of the greater area’s
Valley of a Thousand Hills.
Historical and cultural encumbrances -
A grave yard is located in the
southern side of the dam; and
Although Table Mountain offers
recreational opportunities, the
mountain is associated with
cultural beliefs and access may be
denied by the Traditional
Authorities;
Encumbrances related to the
management of the property -
According to the Reserve
Management Plan for Nagle Dam
and the Game Reserve (Msinsi,
2012), the park is divided into
different user zones based, which
pose certain restrictions to use and
access;
Encroachment of dwellings into
firebreaks;
There is no recent, comprehensive
survey of the entire property;
Various parts of the property are
not fenced and less actively
managed;
The winding roads, which traverse
rural areas in the Valley of a
Thousand Hills, add travelling time
to the dam;
NAGLE DAM RMP RMP (Draft)
November 2016 43
The P26 road separates the
property and creates a portion of
land in the central part of the
reserve. As this road cannot be
closed off, activities on the
property need to be managed to
ensure the safety of both road
users and visitors to the dam; and
Uncontrolled access by members
of the community and livestock;
Encumbrances related to the safety of
the dam for users;
Legal encumbrances –
A church was built on the property
outside of the fenced area;
Currently there are no agreements
in place with any recreational clubs
that currently use the dam;
Encumbrances related to existing
recreational use -
The rules need to be updated to
make provision for the permitted
uses and activities that take place;
Vandalism of the canoeing gear
stored in containers at the picnic
area;
There are no shower facilities
available for the canoeists;
Recreational capacity of the dam;
Hunting takes place in the main
reserve. Suitable provision needs
to be made to ensure that the
remainder of the dam is a no gun
zone;
CIWSP will need to be
implemented at Nagle Dam;
Any proposed use must be
compatible or enhance the
recreational activities associated
with these facilities, and must not
compromise the investments
already made;
Nagle Dam has a relative small
surface area and is also located on
a sharp bend in the river, which
may hinder certain types of
recreational use and will reduce
the carrying capacity;
The formal recreational areas at
the 2 picnic sites provide limited
area for recreational activities;
For large events there is
insufficient space to safely
accommodate a large number of
vehicles;
Encumbrances related to services –
The remoteness of the Dam and
the surrounding topography
complicate the supply of services;
and
An increase in septic tanks could
pose a risk of contaminating the
Dam’s water.
Encumbrances related to the operation
of the dam -
In times when higher volumes are
released from Albert Falls Dam, an
artificial rise (not rain induced) in
the upstream water level of the
uMngeni River will occur, which
may pose safety risks to the users;
The configuration of the flood
diversion structure may pose a
safety risk to users within the
downstream reach of the uMngeni
River during a flood event; and
Recommendations from the Fourth
Dam Safety Evaluation of Nagle
Dam need to be taken into
consideration.
NAGLE DAM RMP RMP (Draft)
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Where do we want to be?
3
MANAGEMENT OBJECTIVES
SECTION
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November 2016 45
3 MANAGEMENT OBJECTIVES
Objectives for the future management of Nagle Dam were identified and are documented in
the Vision and Objectives Report (Umgeni Water, 2016c). Amongst others, this exercise
contributed towards understanding the desired use of the dam and the surrounding land on
the property, based on the requirements from Government Departments (e.g. municipal SDF
and LUMS), aspirations of the community members and sustainable management
considerations.
3.1 Vision Statement
The purpose of setting a vision for Nagle Dam is to articulate a collective statement of future
desired use and state for the impoundment and adjoining state land. The vision statement
developed as part of the RMP process is as follows:
To ensure that the quality of the water resource is protected and to unlock the socio-
economic potential in a manner that promotes sustainable and equitable utilisation, while
maintaining a collaborative relationship with surrounding communities.
3.2 Management Objectives
The realisation of the desired state relies on the disaggregation of the vision into
Management Objectives. These objectives are best presented in a hierarchy, which begins
at its coarsest level with the vision and ends in a series of management objectives of
increasing focus, rigour and practical achievability. The high-level objective hierarchies for
Nagle Dam are presented in Figures 21 – 26.
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November 2016 46
Figure 21: Objective Hierarchy - Water Resource Protection
Figure 22: Objective Hierarchy - Manage Biophysical Environment
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Figure 23: Objective Hierarchy - Preserve Ambience of Nagle Dam
Figure 24: Objective Hierarchy - Sustainable and Equitable Utilisation and Access
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Figure 25: Objective Hierarchy - Unlock Socio-Economic Potential
Figure 26: Objective Hierarchy - Ensure Safety of the Dam Users
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3.3 Criteria for Use and Management
Criteria are necessary to evaluate and filter the objectives for the future use and
management of Nagle Dam. These criteria will also serve to aid decision-making that is
aligned with the vision for the dam.
The NEMA principles, as well as Local Agenda 21 that gives effect to these principles, set
the framework for ensuring that development embraces sustainability. From the NEMA
principles, the following criteria were developed to support the Nagle Dam vision and to
guide achieving the desired use and state:
Any activities and development must be socially, environmentally and economically
sustainable and must comply with the relevant legislation;
The environmental features that form the fabric of the area’s sense of place, should be
enhanced and preserved;
Manage activities to ensure that pollution and degradation of the environment are
avoided, or, where they cannot be altogether avoided, are minimised and remedied;
The opportunities for tourism should be explored in a sustainable and equitable manner;
Equitable access to and use of the resources and its associated benefits and services;
Negative impacts on the environment and on people’s environmental rights be
anticipated and prevented, and where they cannot be altogether prevented, are
minimised and remedied;
The participation of Interested and Affected Parties (I&APs) in the environmental
governance of the Dam must be promoted;
Decisions must be taken in an open and transparent manner, and access to information
must be provided in accordance with the law;
There must be intergovernmental coordination and harmonisation of policies, legislation
and actions relating to the Dam;
Sensitive, vulnerable or dynamic ecosystems (including the wilderness area) require
specific attention in management and planning procedures;
A risk-averse and cautious approach is applied, which takes into account the limits of
current knowledge about the consequences of decisions and actions;
The social, economic and biophysical impacts of activities, including disadvantages and
benefits, must be considered, assessed and evaluated, and decisions must be
appropriate in the light of such consideration and assessment; and
A high degree of environmental awareness should be encouraged amongst all members
of the community.
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How do we get there?
4 SECTION
INTEGRATED PLANNING,
MANAGEMENT & ZONING
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4 INTEGRATED PLANNING, MANAGEMENT & ZONING
4.1 How does the RMP Work?
The overarching framework for the Nagle Dam RMP is presented in Figure 27. The RMP
consists of four main components, namely the Institutional Plan, Strategic Plan, Zonal Plan
and Financial Plan.
Figure 27: Nagle Dam RMP Framework
In terms of the Institutional Plan (refer to Section 4.2), a three-tiered management system is
proposed which includes a RMP Steering Committee (RSC), Operational Management
Committee (OMC) and Dam Management Committee (DMC).
The Zonal Plan (refer to Section 4.3) considered the following:
Water surface of the Dam; and
Shoreline area (including the remainder of the Nagle Dam property).
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The Strategic Plan (refer to Section 4.5) takes into consideration the management
objectives related to Nagle Dam, based on the outcomes of the preceding RMP deliverables.
This information is then used to produce the Business Plans for each prioritised objective.
The Financial Plan (refer to Section 4.4) generally provides information on how revenue
generated through recreational use should be used, if applicable. This information also
contributes towards the Business Plans.
4.2 Institutional Plan
4.2.1 Overarching Institutional Framework
The Institutional Plan consists of the arrangements and structure for the collective and
coordinated management of Nagle Dam. The Institutional Plan consists of the following
(Figure 28):
A three-tiered management system consisting of the RSC, OMC and DMC;
An open communication forum to share information and allow stakeholders to raise
concerns and ideas regarding the management of the Dam. It also provides a platform
for dealing with issues and challenges faced by users; and
Management tools, which include agreements, affiliations and targets.
Figure 28: Nagle Dam Institutional Framework
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November 2016 53
4.2.2 Dam Management Committee
The DMC comprises all parties that have a direct influence on Nagle Dam. The committee,
which will be chaired by Umgeni Water, consists of the representatives shown on Figure 29.
Refer to Section 2.3.2 for a description of the management functions of those key
Government Departments that are represented on the DMC.
The DMC will also include the following specific parties:
Representative from Albert Falls Dam, due to the intricate relationship between these
two impoundments and the operating rules for the overall system, which may influence
recreational activities; and
Representatives from the ITB and each of the three Traditional Authorities (Gcumisa,
Mapumulo and Mdluli / Manyavu) surrounding the property.
Although not relevant at present, authorised access point representatives (i.e. all commercial
operations and recreational clubs with authorised access points) may be identified in the
future and should also form part of the DMC.
Figure 29: Members of the DMC
DMC meetings should be convened every three months (i.e. quarterly). The functions of the
DMC for Nagle Dam include the following (amongst others):
KZN DoT EKZNW
Msinsi DWS Cluster: IEE
Cooperative Governance and Traditional Affairs (COGTA)
SAPS
KZN EDTEA uMgungundlovu DM
Representative from Formal Agricultural Sector
DAFF
DMR Mkhambathini LM
Wash Bay Agent
Chairperson: Umgeni Water
Dam Management Committee (DMC)
SAMSA Enforcement Officer
Ingonyama Trust Board Representatives from Traditional
Authorities
Albert Falls Dam Superintendent
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Operationalising the RMP;
Providing feedback on specific mandates and functions that influence daily operations
(as relevant);
Seeking resolution for general management issues;
Monitoring the practical implementation of the RMP;
Monitoring overall performance in terms of achieving the Management Objectives and
implementing the associated actions;
Overseeing the implementation of the Business Plans;
Reviewing the feedback received from I&APs;
Operational management of recreational activities such as ensuring the AtoN and
demarcation markers system is in place and setting times for use of the Dam (no
recreational activities can take place between sunset and sunrise, unless special
permission is granted);
Conveying the Management Objectives and decisions pertaining to the Dam to the
relevant stakeholders;
Management of the UPN System as part of the CIWSP;
Assessing commercial and recreational opportunities at the dam. As such, an agenda
item related to the Strategic Plan for Commercialisation is required;
Incorporating the management requirements linked to the system’s operating rules into
decision-making;
Organising and facilitating the bi-annual Dam Users’ Open Day. All stakeholders should
be invited to this meeting so that issues regarding use of the Dam can be discussed. If
necessary, significant issues can be escalated from the Open Day to the OMC and then
the RSC to facilitate resolution. The Open Day also provides an opportunity for the DMC
to inform the Dam’s users of all rules and regulations governing access and use. At least
three members of the DMC (including a representative from Umgeni Water) should
attend the Open Day to ensure that all comments raised are noted and raised at the
DMC meeting.
All responsibilities and operations must be compliant with relevant financial and procurement
legislation, regulations and guidelines.
If deemed necessary and it is approved by the DMC, management committees may be
established around specific issues, such as community empowerment and safety, and may
include contractors that are appointed for these activities.
4.2.3 Operational Management Committee
The OMC (refer to Figure 30) will function at a catchment level and will provide high level
guidance for all dams that are situated within one catchment. This is an existing reporting
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November 2016 55
line between Area Managers for various schemes, the Regional Manager and the Director:
Operations.
The DWS Cluster: Integrated Environmental Engineering (IEE) that sits on the DMC will
provide feedback at the OMC on Nagle Dam. The implementation of the RMP will be added
as an agenda item, hence providing an opportunity to discuss the RMP. The Regional
Manager will be fully aware of all commercial and/or recreational activities/opportunities at all
dams within the cluster.
Figure 30: Members of the OMC
4.2.4 RMP Steering Committee
The RSC, which was established to deal specifically with RMPs, is made up of
representatives from National Government Departments and relevant Agencies and is
managed by DWS. The committee meets every six months.
The main functions of the RSC are as follows:
Ensure that both the DMC and OMC are performing all necessary functions;
Liaise with the individual members of the specific sectors that they represent;
Provide high level guidance on recreational use in terms of their respective mandates to
the OMC and DMC; and
Ensure that the necessary continuous support is provided by the different government
sectors to the DMC with the aim of achieving sustainable utilisation of the resource.
Relevant matters raised at the DMC meetings will be escalated to the OMC and the RSC to
receive the appropriate action from the mandated bodies.
Figure 31 lists the members that are typically represented on this committee.
Director: Eastern Operations
Cluster IEE/Area Manager
Cluster IEE/Area Managers for all other dams in the Cluster
Operational Management Committee
Chief Director: Operations
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Figure 31: Members of the RSC
4.2.5 Management Tools
The RSC, OMC and DMC have a number of management tools at their disposal which will
enable the management of Nagle Dam in accordance with legislative requirements. These
tools are expanded on in the sub-sections to follow.
4.2.5.1 CIWSP RMP Programme
The CIWSP developed a toolbox for the implementation of a RMP, which includes
(amongst others):
DMR Terms of Reference (ToR);
Templates for the administrative requirements for the DMC (including invitation,
agenda, attendance register and minutes);
Information pertaining to the UPN System; and
Relevant appointments.
RMP Steering Committee
SAMSA DAFF
Department of Tourism DoT
Department of Public Works Department of Human Settlements
Department of Sports and Recreation National Treasury
COGTA South African Sports Confederation and
Olympic Committee (SASCOC)
Department of Rural Development and Land Reform (DRDLR)
SAPS
DEA DWS
Centre for Public Service Innovation (CPSI)
Chairperson: NWRI: IEE
Tourism Hospitality and Sport Education and Training Authority (THETA)
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4.2.5.2 Agreements
Formal agreements represent one of the main management tools available to
ensure proper use of the Dam in line with the RMP’s requirements.
All the existing agreements shall be reviewed within 12 months of the RMP being
approved. This is to ensure that the agreements are aligned with the management
requirements of the RMP.
1) Agreements for the Implementation of the RMP
Umgeni Water may delegate responsibility for the implementation of the gazetted
RMP to Msinsi, who is currently responsible for managing access and utilisation of
the property for recreational purposes. If this is the case, the agreement between
these parties should make provision for satisfying the requirements of the RMP,
which as a minimum must achieve the following:
Specific conditions imposed by Umgeni Water for any agreements with other
parties on the use of the property for recreational purposes;
Terms and conditions regarding equitable access;
Guidance on the use of the State Resource for Public-Private Partnerships
(PPP) in line with Treasury’s requirements;
Safety management to be in line with SAMSA requirements;
Targets and objectives for the management of the Dam;
Roles and responsibilities regarding the following:
Maintenance of AtoN and demarcation markers;
Maintenance of Wash Bays;
Maintenance of recreational infrastructure;
Maintenance of fencing;
Firebreak maintenance;
Managing sensitive environmental features (e.g. wetlands);
Control of alien invasive species;
Maintenance of the UPN System including signage;
Management of agreements with other recreational users (as relevant);
Responsibilities on monitoring development and access targets (as part of
agreements with other recreational users); and
Conditions for the negotiations of agreements with recreational clubs.
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2) Recreational Use Agreements –
Recreational use at Nagle Dam must be undertaken through an appropriate legal
framework, as relevant to the type of use. Umgeni Water/ Msinsi must enter into
agreements with all recreational clubs on the use of the Dam. Recreational Use
Agreements must be developed in line with the conditions stipulated in the
agreement between Umgeni Water and Msinsi (if relevant).
These agreements should also be presented to the DMC prior to signature to
ensure the vision and objectives of the RMP are satisfied. All agreements must be
finalised within 12 months of the RMP being gazetted.
3) Access Agreements –
Access Agreements provide a legal mechanism to ensure that all management
requirements are being met when granting access to the property.
Examples where Access Agreements may be required at Nagle Dam include:
Allowing the surrounding community access to gather firewood;
Allowing the surrounding community access to traverse the property to reach
either sides of the Dam; and
Certain portions of the property are not fenced due to maintenance
complications. This includes a section along the northern shoreline (refer to
Figure 32) as well as a section of the property to the south of the dam wall.
Agreements are required with the relevant Traditional Authorities, which makes
provision for access and livestock grazing in these areas.
Figure 32: Cattle along northern shoreline of Nagle Dam
The ITB and Traditional Authorities surrounding the property, as well as the clubs
that make use of the Dam, must be made aware that access should only be through
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authorised points. Accessing the property through unauthorised access points is an
illegal activity unless the parties concerned enter into a formal agreement with
Umgeni Water/ Msinsi.
These agreements should be updated within 12 months of the RMP being gazetted.
4) Safety of Navigation Agreement –
In addition to its common law responsibility, DWS is in terms of the requirements
described in the NWA (amongst others) responsible for the safety of watercourses
(including dams). Umgeni Water is responsible to provide the required fixed and/or
AtoN (e.g. buoys) for general navigation, according to prescribed specifications.
Nagle Dam, as well as other dams owned by Umgeni Water with high levels of
activity, can be included in the licence acquired by DWS for the UPN System.
Umgeni Water’s CEO will need to submit a formal request in this regard to DWS’s
Director General (Mzanywa pers. comm., 2016). DWS will then need to enter into
an agreement with Umgeni Water to ensure that SAMSA’s requirements are
satisfied.
These agreements should be updated within 1 year of the RMP being gazetted.
5) Event Applications –
All events must be managed through an event application process. The event
application must be made to Umgeni Water/ Msinsi and must be approved by the
DMC.
These applications must follow a specific template and will include the following:
Number of participants;
Emergency Response Plan;
Advertising and branding will need to be in line with Umgeni Water’s/ Msinsi
communication requirements;
Access points to be used; and
Specific requirements.
Furthermore, all events must meet the requirements of the Safety at Sports and
Recreational Events Act (Act No. 2 of 2010).
6) General Principles and Requirements
The following general principles and requirements need to be incorporated into the
various agreements, as relevant:
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Clear start and end dates and terms of renewal/extension;
Rights and obligations of both parties;
Formal access points to be used;
Umgeni Water’s exclusion of liability;
Terms and conditions of improvements made to the property, where relevant. All
improvements require consent from Umgeni Water and the DMC. Furthermore,
the financial consequences should this requirement not be met should also be
stipulated in the agreement. No permanent structures shall be built within the
1:100 year floodline without additional approval as required by Section 21(c)
and (i) of the NWA);
The extent of the rights to use the resource;
Clear instructions on the financial requirements of both parties, and where and
when money must be paid. All recreational clubs on state-owned land must be
managed in line with National Treasury requirements. Lease agreements for
use of state land should include fair remuneration at the current market value;
All agreements should include a cancellation clause if requirements cannot be
met;
All clubs or associations must be affiliated to a national sporting body
recognised by the South African Sports Confederation and Olympic Committee
(SASCOC). All agreements must include a cancellation clause if clubs or
associations fail to obtain affiliation within one year from date of signature of the
agreement;
Limitations to the number of people allowed to access the water surface based
on the carrying capacity of the Dam. In addition, the carrying capacity of the
CIWSP wash-bays must be adhered to;
A list of current and potential recreational activities allowed at the Dam;
Requirements for safety, disaster management and emergency response plans;
Duties and responsibilities of either party regarding maintenance, management
and infrastructure;
A list of prohibited activities;
Requirements for subletting portions of the leased area (if allowed);
A mandate for programmes to assist in equitable access and redressing past
imbalances at the Dam, such as sponsored gate-fees / access cards / sliding
scale of fees for members of previously disadvantaged communities. This
should be in line with the RMP. The DMC will then be required to report against
all targets at the OMC;
All agreements must include a cancellation clause should community access
targets not be met; and
All recreational activities must be in line with the RMP, which once gazetted,
becomes the mechanism to control and manage recreational use. Although no
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Section 21k Water Use License Application (WULA) is required, all activities
must comply with all other relevant legislation (refer to Section 2.3); and
Operating rules of the system to be considered, based on the recreational of
commercial use proposed.
4.2.5.3 National Affiliations and Development Targets
All recreational clubs (e.g. canoeing and fishing) should be affiliated to a SASCOC
affiliated organisation. The development targets set by the National Organisations
must be met.
4.2.5.4 Community Participation and Beneficiation
Community participation and beneficiation is one of the key objectives for the future
management of Nagle Dam, as established as part of the compilation of the
preceding RMP deliverables.
Provision is made in the Strategic Plan (see Section 4.5) to pursue this objective
further.
4.3 Zonal Plan
4.3.1 Defining a Zonal Plan
Generally, a Zonal Plan is a spatial representation of the designated areas on the water
surface and along the shoreline area where certain uses and restrictions apply, and which
depicts features that are relevant to the potential future recreational use of a dam.
The individual Zonal Plans for Nagle Dam were compiled based on the following:
Understanding the current recreational uses as well as identifying additional potential
recreational and commercial opportunities;
Establishing the Dam’s carrying capacity; and
Demarcating management zones in terms of the water surface, shoreline and general
property together with an indication of the preferred activities within each zone.
The following needs to be borne in mind for the Zonal Plans:
The demarcation of the various zones was based on the extent of the watercourses
(uMngeni River and Nagle Dam) reflected in the latest aerial photography received from
Umgeni Water. Going forward, these zones need to be updated as follows (as relevant) -
The Surface Water Zonal Plan needs to be based on the FSL of the Dam, once
confirmed; and
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The Shoreline Zonal Plan needs to be based on the 1:100 year floodline or
delineated riparian zone (both to be determined), whichever is greatest.
A conservative approach was adopted to demarcating the zones in terms of ensuring the
safety of visitors, safeguarding infrastructure and facilities at the Dam, as well as
protecting sensitive environmental features. Depending of the current status of the land,
the following default zones were allocated to the general property -
Conservation, if undeveloped and unaffected by historic land clearing; or
Facilities, if the land has been affected by operational activities and structures.
4.3.2 Current Recreational Uses
The current main user groups at Nagle Dam, and their associated activities, include the
following:
Canoe clubs (Lembethe Canoe Club) - canoeing;
Fishing clubs - recreational fishing;
Change a Life Academy - trail running and canoeing (amongst others);
Event organisers - fishing and canoeing competitions, running, mountain biking and
general gatherings (e.g. Day of the Clubs motorbiking event);
General members of the surrounding community – picnicking and fishing (recreational
and subsistence);
Business groups - conferencing and team building; and
Tourists - accommodation, game viewing, hiking, picnicking and fishing.
Figure 33: Some recreational activities at Nagle Dam
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4.3.3 Potential Recreational and Commercial Activities
A matrix was used to determine the feasibility of possible recreational and commercial
activities in line with the operational requirements of the Dam, the biophysical environmental
conditions and safety requirements. The ratings that were used to determine the viability of
these activities are shown in Table 6.
Table 6: Rating System for Recreational & Commercial Activities
Score Interpretation Comments
0 Not feasible High negative impact to dam environment
High Negative Impact to Recreational Users
1 Feasibility to be explored Feasibility study required
2 Likely to be feasible
Benefits appear to outweigh impacts
Allowed if interest exists
Adequate agreements and safety measures would be required, as per RMP
No feasibility study required
3 Current use Use already undertaken at the Dam
Regarded as acceptable
A comprehensive list of possible recreational and commercial activities is contained in Table
7 (no contact), Table 8 (primary contact) and Table 9 (secondary contact), together with an
assessment of their viability in terms of Nagle Dam.
Qualitative criteria that were recruited in this evaluation include the following:
Operational management issues;
Environmental impacts on recreational use;
Recreational use impacts on the environment;
Safety requirements;
Recreational requirements;
Legal requirements; and
Economic viability.
It is noted that no PPPs can be allowed that will compete with the functions of Msinsi or
compromise the management of the Dam.
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Table 7: Rating of Recreational & Commercial Activities for Nagle Dam – No Contact
Activity
Operational Management Issues
Environmental Impacts on Activity Activity Impacts on Environment Safety Requirements Recreational Requirements Legal Requirements Economic Viability
Score Change in
Water Level Impacts on Dam Wall
Water Quality
Health Impacts Aquatic Invasive Species
Aquatic Biota / Weeds
Terrestrial Fauna and
Flora
Water Quality
AtoN and Demarcation
Markers
Water Depth
Visibility Radio Signal
Emergency Response
Conflicts with current activities
Winds required
Accommodation Ablution facilities
Access to water
Access to Land
Interest in the activity
Funding Opportunities
Hiking / Walking Trail
Outside 1:100 year flood line
Strict access control required
N/A
Dangerous fauna
N/A
N/A
Activity to be restricted to dedicated areas
Sanitation Litter
N/A
N/A N/A
Poor cell-phone reception
Emergency response required
Trails to be demarcated Fire risks
N/A
Accommodation could be required Walkways and dustbins required
Facilities in place in dedicated areas
Not required
Limited space Steep topography in areas Hiking trail(s) to be demarcated
Activities are generally popular
Existing 3
Day Cycling Trails between towns
Cycling is a very popular activity
Local municipality
1
Public Picnic Areas Dedicated areas only Fire risks
Existing picnic areas occur along shoreline
Dedicated areas (main picnic area and Umgeni picnic site)
Existing picnic areas utilised
Existing
3
Conference Facility Existing facilities and dedicated areas
Not required
Existing facility on peninsula
Conference facility used. Relatively near PMB.
3
Craft / Farmers Markets
N/A
Identify suitable area Market facilities would be required
Dedicated access point required
To be determined as part of feasibility study
Msinsi / PPP 1
Wedding venue Identify suitable area
Could make use of existing facilities
To be determined
Msinsi / PPP 2
Accommodation Existing facilities and dedicated areas
Facilities in place (Nagle Lodge, Msinsi Lodge, Hatchery Lodge, tented camps)
Access points provided at existing facilities
Access points provided at existing facilities
Existing facilities utilised
Existing
3
Birding
Trails to be demarcated Consideration to bird hides
To be determined, based on type of activity
Not required
Limited space Steep topography in areas Birding trail(s) / spots to be demarcated
Birding is generally popular
3
Floating Restaurant
Water levels should not impact no contact activities
Could be discouraged by poor water quality
To be determined as part of feasibility study
Identify suitable area
Dedicated access point required Access agreement may be required
Dedicated access point required
To be determined as part of feasibility study
Msinsi / PPP 0
Research
Access to water to be controlled
N/A
Possible risk if water is ingested Underwater obstructions Dangerous fauna
To be controlled
Would be required
To be controlled
Would depend on specific research requirements
Expected to be of interest Historical research at the Dam
Tertiary and research institutions
2
Traditional Ceremonies / Baptisms
Could be discouraged by poor water quality
Could discourage activity
N/A
N/A Identify suitable area
No facilities are required
Dedicated access point required
Expected to have great interest due to rural nature of area
N/A 2
Aquaculture
N/A
N/A
To be determined
N/A
N/A
N/A
N/A N/A N/A N/A
N/A
Unused hatchery and associated facilities occur on property
To be determined To be determined
To be determined
Msinsi / PPP / DAFF
1
Environmental Education Programme
N/A Identify suitable area
Expected to be of interest Coordination with schools
Msinsi / PPP
3
Zip Line Strict access control required
Safety requirements to be adhered to
Activity to be restricted to dedicated areas
Emergency response required
To be determined
1
Obstacle Course
N/A
1
Zulu Cultural Experience
N/A 1
Horse Trails Strict access control required
Safety requirements to be adhered to
1
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Table 8: Rating of Recreational & Commercial Activities for Nagle Dam – Primary Contact
Activity
Operational Management Issues
Environmental Impacts on Activity Activity Impacts on Environment Safety Requirements Recreational Requirements Legal Requirements Economic Viability
Score Change in
Water Level Impacts on Dam Wall
Water Quality
Health Impacts Aquatic Invasive Species
Aquatic Biota / Weeds
Terrestrial Fauna and
Flora
Water Quality
AtoN and Demarcation
Markers
Water Depth
Visibility Radio Signal
Emergency Response
Conflicts with current activities
Winds required
Accommodation / Facilities
Ablution facilities
Access to water Access to
Land Interest in the
activity Funding
Opportunities
Open Water Swimming - Recreational
Access to water to be controlled
Strict access control required
Could be discouraged by poor water quality
Possible risk if water is ingested Underwater obstructions Dangerous fauna
Could discourage activity
Activity to be restricted to dedicated areas
Activity to be restricted to dedicated areas
Sanitation Litter
Adherence to buoy system
Seasonal changes Operating rules Drought conditions
Could discourage activity
Poor cell-phone reception
UPN System
Zoning would need to accommodate activity Potential conflicts with secondary contact activities Consider public swimming pool
N/A
To be determined, based on type of activity
Facilities in place in dedicated areas
Swimming not permitted If feasible, dedicated access point required, with possible access agreement
If feasible, dedicated access point required
Expected to be of interest
Msinsi 0
Open Water Swimming – Development Programme
Expected to be of interest Coordination with schools
SwimSA or associated foundations
0
Snorkelling None N/A
0
Diving 0
Table 9: Rating of Recreational & Commercial Activities for Nagle Dam – Secondary Contact
Activity
Operational Management Issues
Environmental Impacts on Activity Activity Impacts on Environment Safety Requirements Recreational Requirements Legal Requirements Economic Viability
Score Change in
Water Level Impacts on Dam Wall
Water Quality
Health Impacts
Aquatic Invasive Species
Aquatic Biota / Weeds
Terrestrial Fauna and
Flora
Water Quality
AtoN and Demarcation
Markers
Water Depth
Visibility Radio Signal
Emergency Response
Conflicts with current activities Winds
required Accommodation
/ Facilities Ablution facilities
Access to water
Access to Land
Interest in the activity
Funding Opportunities
Shore Fishing
Access to water to be controlled Seasonal changes Operating rules Drought conditions
Strict access control required
Could be discouraged by poor water quality
Possible risk if water is ingested Underwater obstructions Dangerous fauna
Could discourage activity
Activity to be restricted to dedicated areas
Activity to be restricted to dedicated areas
Sanitation Litter
Adherence to buoy system
Seasonal changes Operating rules Drought conditions
Could discourage activity
Poor cell-phone reception
UPN System
Existing facilities and dedicated areas Zoning would need to accommodate activity Potential conflicts with other activities
N/A
To be determined, based on type of activity
Facilities in place in dedicated areas
Access points provided at existing facilities Access agreement required
Current activity Existing
3
Fly Fishing 3
Subsistence fishing 3
Recreational Fishing Boats
Generally popular activity
Msinsi / PPP 1
Tube Fishing Zoning would need to accommodate activity Potential conflicts with other activities
Expected to be of interest
Angling Clubs
1
Junior Angling School 2
Canoeing / Kayaking Slalom Canoe
Existing facilities and dedicated areas Zoning would need to accommodate activity Potential conflicts with other activities
Current activity Existing 3
Activity to be restricted to dedicated areas Possible spreading of invasive species
Kayaking Sprints Current activity Msinsi / PPP 3
Kayaking Marathons
Zoning would need to accommodate activity Potential conflicts with other activities
Current activity Msinsi / PPP 3
Kayaking Water Polo Unknown Msinsi / PPP 1
Kayaking Fishing Generally popular activity
Msinsi / PPP 2
Paddle Ski Generally popular activity
Msinsi / PPP
1
Pedal Boat 1
Stand Up Paddling 1
Parasailing Occur at other dams in system Interest at the dam unknown
Sailing clubs
0
Sailing 0
Junior Sailing School 0
Water Toys To be determined
Msinsi / PPP 1
Wind Surfing To be determined
Clubs 0
Kite Surfing 0
Birding Boat Tours
Clogging of propellers Obstruction
Sanitation Oil leaks etc. Litter
Would require additional slipway(s), as required Access agreement required
To be determined
Msinsi / PPP 1
Motorised Boats
N/A
Conflicts with current use Limited size of the dam and unique shape restrict this use
Activities practiced at other dams in uMngeni River system Interest at Nagle Dam unknown
Clubs
0
Jet Powered Boats 0
RHIB (Rigid Hulled Inflatable Boat)
0
Water-skiing 0
Jet Ski 0
Dragon Boats 0
Jet Ski Fishing 0
Ski Jumping 0
Slalom Skiing 0
Ski and Wakeboard Boat
0
House Boats Zoning to accommodate activity Potential conflicts with other activities
To be determined
Msinsi / PPP 1
Pleasure Boats 1
Hovercraft Could discourage activity
Conflicts with current use Limited size of the dam and unique shape restrict this use
Not anticipated N/A 0
Flying Boats/Water Planes
To be determined
Potential impact on Dam wall
N/A N/A Oil leaks etc.
Specific aviation requirements
Not feasible Not anticipated N/A 0
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Based on the appraisal in Tables 7 – 9, the main potential activities that are not already
practiced at Nagle Dam and that could be considered in the future include the following:
Dedicated trails set out for hiking and mountain biking;
Guided tours to Table Mountain, with approval from Traditional Authorities;
Junior angling school for local communities;
Boat tours on the dam;
Pedal boats;
Horse trails;
Wedding venue, possibly using the existing facilities (e.g. conference hall);
Conducting scientific research at the dam (e.g. aquatic health);
Traditional ceremonies / baptisms, involving the surrounding Traditional Authorities;
PPP for aquaculture by resuscitating the old fishery on the property;
Environmental Education Programme, focusing on the environmental features present at
the Dam, which could include other activities such as zip line, obstacle course and Zulu
Cultural Experience;
Farmers / Craft Market, possibly using the main picnic site; and
Activities associated with paddling, such as kayaking water polo, kayak fishing, and
stand up paddling.
Proposals for any future recreational or commercial activities can be put forward to the DMC
and these can be assessed on a case-by-case basis (consider criteria listed in Section 3.3)
to ensure that Nagle Dam’s vision and desired state are not compromised and to avoid
conflict with the Management Objectives (Section 3.2). Any proposed activities would need
to be aligned with the Zonal Plans shown in Figures 34 and 35, unless adequately
motivated, and ensure that the Dam’s carrying capacity (Section 4.3.5) is not exceeded. The
appropriate Management Tools (Section 4.2.5) would also need to be applied.
4.3.4 Measures to Facilitate Current and Future Recreational Activities
The following needs to be taken into consideration for the current and future recreational
activities:
Access Point
All formal access points need to be clearly demarcated (signage) and manned. All visitors
must be registered and be provided with a copy of the rules and regulations.
Suitable signage shall also be displayed at the access points (e.g. disclaimer, prohibited
activities, safety requirements, times for use of the Dam, etc.).
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Parking Facilities
Safe and secure parking facilities would need to be provided, depending on the types on
uses permitted and number of visitors expected. The design of the parking facilities would
need to take into account the requisite specifications, best practices, gradient, access, etc.
Ablution Facilities
Ablution facilities are available at the main picnic area. Additional ablution facilities may be
required for the recreational users, which must cater for males and females. These facilities
must be centrally located for ease of access.
As a general note, any sanitary facilities would need to be managed to prevent any
contamination of the environment and the water body.
Hiking/Walking and Biking Trails
Formal hiking/walking trail and biking trail could be established on the property. Provision
needs to be made for the following:
Best practices for trail design;
Measures to control erosion;
Crossings for natural drainage lines (e.g. elevated walkways) that occur along the
walking trails;
Signage;
Ablution facilities;
Benches; and
Litter bins.
The conduct of the trail users would need to be controlled in terms of littering, managing fire
risks and prohibiting unlawful access to traditional land. Motorised vehicles shall not be
permitted on the trail and shall be prevented through proper design and detailing.
Fixed features
The proposed fixed features include benches, picnic benches, litter bins, signage and
restrooms, which will be strategically dispersed on the property along the trails and public
use areas. The features need to be properly maintained.
The visual impacts associated with these features need to be minimised, through placement,
painting, etc. Strict control over fire risks to be exercised.
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Access to Vessels
A slipway is available at the Dam, but will be for the exclusive use of the dam operator. If
required, the slipway could be utilised for emergency purposes. No public use of the slipway
will be allowed.
Additional launching areas should be investigated if the associated recreational uses that
require such facilities are deemed to be feasible, which should make provision for vessels to
access the dam. Apart from recreational use, it is also accepted that access will be required
to allow for the maintenance of dam-related infrastructure.
The Zonal Plan includes areas defined as “no wake” zones where the motorboat that is to be
used by the dam operator must travel at the slowest possible speed required in order to
maintain steerage and headway. No access to any vessels will be permitted to buoyed
restricted areas, such as the safety zone at the dam wall.
Fishing
Recreational fishing is currently allowed at the Dam, at areas accessible to the public.
Jetties, not impacting on dam safety and operation, can also be built to support this activity.
Fishing will not be permitted in sensitive areas and prohibited access zones. Gillnetting is
also not allowed on the property.
Requirements for stocking the dam with fish and the management of recreational fishing
would also need to be taken into consideration.
Community Access
The following matters pertaining to current access to the Dam by the surrounding
communities need to be addressed:
Various parts of the property are not fenced off and are less actively managed.
These parts are used by the community to gain access to the watercourse, for cattle
grazing and to gather firewood.
Even where fences have been erected, foot gates have been installed to allow the
community to traverse the property to access the area to the south. The community
thus traverse the property in a relatively uncontrolled manner.
The feasibility of a pedestrian bridge is under consideration by Umgeni Water. The
movement of the community members on the property needs to be controlled.
A tunnel within the diversion weir allows the community to cross beneath the dam to
access the area to the north. Once the tunnel is exited in the south, the dam property
can be traversed in a relatively uncontrolled manner by following the primary access
road that leads over the dam wall. A dedicated route needs to be clearly defined to
allow for safe movement across the property.
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Uncontrolled access by livestock is observed on the entire property. A contributing
factor to the abundance of livestock on the property is the broken cattle grid along the
P26.
The shoreline along the northern part of the dam is not accessible for use, apart from
the tunnel underneath the diversion weir. A public road grants access to the
settlements to the area north of the dam. Cattle and members of the community are
observed along the northern shoreline, within the property.
4.3.5 Carrying Capacity
The Methodology for Carrying Capacity Assessment: Recreational Water Use was used to
determine the degree of recreational use that is possible and sustainable on the water
surface at Nagle Dam. Calculating carrying capacity for recreation is a vital step to ensure
that recreation at the Dam is safe and that users do not feel crowded and enjoy their use of
the water surface.
It is noted that low impact use in the form of paddling is currently undertaken at the Dam,
and is advocated as one of the future preferred activities on the water surface. Recreational
fishing boats with electric motors are also permitted at the Dam. Sailing and boating are
already enjoyed on other dams on the uMngeni River, which can be regarded are more
suitable venues for these uses. The size and unique shape of Nagle Dam also restrict these
more intensive types of uses.
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There are three kinds of carrying capacity:
1. Physical Carrying Capacity (PCC) - this is the maximum number of users that can
physically fit onto the water surface at any given time;
2. Real Carrying Capacity (RCC) - this is the maximum number of users that can use the
resource once corrective factors (such as wildlife or weather conditions) that are unique
to the Dam are taken into account; and
3. Effective Carrying Capacity (ECC) - this is the number of visitors that can use the
resource, given the management capacity available at the Dam.
Each level constitutes a corrected capacity level of the preceding level. The PCC is always
greater than the RCC, and the RCC is greater than the ECC, thus: PCC > RCC and RCC ≥
ECC.
The process of establishing the carrying capacity is normally determined through the
following tasks:
Analysis of recreation and water resource management policies;
Analysis of objectives of the water resource;
Analysis of current recreational water use;
Definition, strengthening or modification of policies regarding recreational water use
management;
Identification of factors influencing recreational water use; and
Determination of the recreational water use carrying capacity.
4.3.5.1 PCC
Formula: PCC = A ÷ U/A x Rf
A = area available for public use;
U/A = area required for each user in terms of ha/craft; and
Rf = Rotation Factor (the number of visits per day)
A is calculated as the area of the water surface at FSL, which is 156 hectares (ha).
Although it is not realistic to consider the entire area of the dam at FSL for various
factors (e.g. dam level fluctuations, no-go areas, etc.), it provided a point of
departure for estimating the carrying capacity. Nagle Dam is generally operated at
80% full and A thus needs to be adjusted to 145 ha.
There are a number of studies and technical articles available that discuss
approaches to determine the area required by various types of recreational uses on
dams. Common users normally considered in calculating the U/A, based on the
standardised approach adopted by DWS for RMPs, are listed in Table 10. In the
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case of Nagle Dam, based on the current use and limitations with regards to the
Dam’s size and shape, the U/A was conservatively assumed to be 1 ha per user.
Table 10 Requirements for water crafts
Craft Water Depth (m) U/A (ha/craft)
Canoes >0,6 0,5
Windsurfers >0,6 0,5
Rowing >1,0 0,5
Dinghies >1,0 1,0
Yachts >1,8 2,0
Powerboats >1,4 4,0
Fishing >1,0 4,0
It was assumed for Nagle Dam that the Rf was 1 visit per day.
Thus PCC = 145 ha ÷ 1 x 1 = 145 crafts.
4.3.5.2 RCC
Formula: RCC = PCC x (100 – Cf1)% x (100 – Cf2)% x … (100 – Cfn)%
Cf = a corrective factor expressed as a percentage.
The RCC takes into account factors that limit recreation. In this case limiting factors
include (refer to Zonal Plans in Section 4.3.6 - 4.3.8):
1. Dam wall buffers (calculated as 3.9 ha);
2. Safety no go zones (calculated as 6.5 ha); and
3. Areas demarcated for conservation purposes, where no recreational use is
permitted (not applicable in terms of Nagle Dam’s FSL).
The first two bullets above equate to 10.4 ha which is 6.7% of the Dam’s water
surface. Note that mooring zones and swimming areas are not relevant at the Dam
and were thus excluded from the RCC calculation.
Given the susceptibility of Nagle Dam to pollution due to its size and operating
rules, water quality restrictions also need to be considered. A risk factor of 50% was
applied to make provision for the aforementioned aspect.
Thus RCC = 145 x (100 – 6.7)% = 135 – 50% = 68 crafts on the Dam at any given
time.
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Note that there may be other corrective factors that need to be taken into
consideration, such as limitations to public access, maintenance periods, etc. These
factors could reduce the number of crafts that can utilise the Dam.
4.3.5.3 ECC
Formula: ECC = (Infrastructure Capacity x Management Capacity) x 100/ RCC
MC = Management capacity based on staff and budget.
Infrastructure Capacity is normally associated with slipways required to launch
boats. Direct access to the water is currently gained from the main picnic area and
infrastructure capacity is thus not regarded as a constraint. A value of 1 is thus
allocated to Infrastructure Capacity.
ECC is the maximum number of visitors that the Dam can sustain, given the
management capacity available. As mentioned, Msinsi manages the recreational
activities at Nagle Dam and existing facilities and control measures are in place on
the property in this regard (refer to organogram in Figure 7). However, 68 crafts is a
considerable number compared to the current level of recreational use of the water
surface. The overall management capacity at this stage was assumed to be 50%,
as additional resources may be required to deal with such a large number of
vessels. Therefore the ECC was calculated to be 34 crafts.
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4.3.6 Water Surface Zonal Plan
The Zonal Plan for the water surface at Nagle Dam, which is provided in Figure 34, was
compiled by taking into consideration the following factors:
Operational requirements of the Dam;
Safety requirements of each activity;
Types of activities (in terms of contact); and
Environmental requirements.
Information regarding the current and potential activities in each zone, as well as the related
management requirements, are provided in Table 11.
As a minimum, the following information needs to be added to the Water Surface Zonal Plan
(once it becomes available and as relevant):
Fluctuating water levels (as relevant);
Location of fixed and floating AtoN;
Location of demarcation markers;
Suitable location for UPN zones and boards; and
Fence line boundaries.
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Figure 34: Water Surface Zonal Plan
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November 2016 75
Table 11: Water Surface Zones and Management Requirements
NO GO – SAFETY & OPERATIONS
Objectives, Features & Permitted Use
Restrictions & Conditions Development Criteria DMC Requirements
Allowance for the safe operation and management of the dam
Protect the infrastructure components of the Nagle Dam, including – Dam wall and outlet (100
m buffer) Diversion weir with gates
(100 m buffer) Diversion channel Emergency spillway
(fuse plug) (50 m buffer) Saddle embankment (10
m buffer) Abstraction off-takes (50
m buffer) Upstream DWS weir
(100 m buffer) Ensure the safety of the
public Access for Umgeni Water &
Msinsi
No public access except for – Controlled access over
dam wall (pedestrians and vehicles)
Paddlers accessing “upper dam”, upstream of diversion weir (exit water surface to the north of the weir)
Permissible access at discretion of DMC
Permitted vessels to adhere to ‘slow no wake’ speed
Requirements for vessels - Registered Safe for
Water Vessel Valid Skipper’s License First aid kit on board UPN date stamp UPN tag Vessels to go through
wash bay
Development shall not jeopardise the safe operation and management of the dam and its associated components
Development to include activities associated with the maintenance, safeguarding or upgrade of existing infrastructure or structures
Ensure compliance with relevant legal obligations, such as – NEMA EIA
Regulations (2014) NWA
Maintain AtoN and demarcation markers
Appropriate agreements for all types of permitted access
UPN System & Enforcement Officer
OPS Point Wash bay &
Officer Rescue boat
available at all times
Create awareness Signage Monitoring
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RESTRICTED ACCESS - FACILITIES
Objectives, Features & Permitted Use
Restrictions & Conditions Development Criteria DMC
Requirements Prevent visitor’s access to
operational facilities Maintain privacy for guests
at conference and accommodation facilities
Approved access for vessels to water surface exclusively for – Emergencies Operational purposes Water quality monitoring Biomonitoring Controlled scientific
research Environmental
education Control of alien invasive
species SAPS patrols Permissible access at
discretion of DMC
Access only allowable with permission from Umgeni Water / Msinsi
Activities on the water surface shall not interfere with operation and maintenance functions
Requirements for vessels – refer to no go zone
Activities shall not pose a nuisance or security risk, or cause conflict with permissible activities at recreational and commercial facilities (based on 20 m buffer along section of peninsula’s eastern shoreline), including - Msinsi lodge Conference centre Tented camp Deck
Development to include activities associated with the maintenance, safeguarding or upgrade of existing infrastructure or structures
Ensure compliance with relevant legal obligations, such as – NEMA EIA
Regulations (2014)
NWA
Maintain AtoN and demarcation markers
Appropriate agreements for all types of permitted access
UPN System & Enforcement Officer
OPS Point Wash bay &
Officer Rescue boat
available at all times
Create awareness
Signage Monitoring
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RESTRICTED ACCESS – FISHING & COMMUNITY
Objectives, Features & Permitted Use
Restrictions & Conditions
Development Criteria DMC
Requirements
Fishing with permission from Msinsi
Access for members of the community in unfenced section of the property, to the south of the dam wall
Approved access for vessels to water surface exclusively for – Emergencies Operational
purposes Water quality
monitoring Biomonitoring Controlled scientific
research Environmental
education Control of alien
invasive species SAPS patrols Permissible access
at discretion of DMC
Agreement required with Traditional Authority to formalise access for members of the community in unfenced section of the property
Restricted access to visitors
Adherence to rules and regulations (issued at main public access point off P26)
Permitted vessels to adhere to ‘slow no wake’ speed
Note legislative requirements in terms of the NWA for regulated area of a watercourse (i.e. 1:100 year floodline or delineated riparian habitat, whichever is greatest)
Permits for fishing
Development shall not jeopardise the resource quality (including flow, water quality, aquatic biota, instream and riparian habitat) of any water resource
Maintain the desired level of protection of the resource set through the Resource Directed Measures (Reserve, Classification System, and Resource Quality Objectives)
Development to include activities associated with – Management and safeguarding
of the water resource (e.g. rehabilitation, bank stabilisation, removal of invasive alien species)
River flow measurement Safe access to and across the
river Development should be located
outside 1:100 year floodline (and delineated wetland boundary and set buffer, if relevant), unless associated with the above activities
Prevent the illegal removal of protected species
Adhere to Umgungundlovu District Municipality’s Biodiversity Sector Plan, including management objectives and requirements
Ensure compliance with relevant legal obligations, such as – NEMA EIA Regulations (2014) NWA
Maintain AtoN and demarcation markers
Appropriate agreements for all types of permitted access
UPN System & Enforcement Officer
OPS Point Wash bay &
Officer Rescue boat
available at all times
Create awareness
Signage Monitoring
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CONSERVATION
Objectives, Features & Permitted Use
Restrictions & Conditions
Development Criteria DMC
Requirements
Safeguarding of sensitive areas, including reaches of the uMngeni River system not earmarked for other uses, as well as tributaries
Approved access for vessels to water surface exclusively for – Emergencies Operational
purposes Water quality
monitoring Biomonitoring Controlled scientific
research Environmental
education Control of alien
invasive species SAPS patrols Permissible access
at discretion of DMC
No go for recreational use on water surface
No go for any use that will jeopardise sensitive environmental features
Permitted vessels to adhere to ‘slow no wake’ speed
Note legislative requirements in terms of the NWA for regulated area of a watercourse (i.e. 1:100 year floodline or delineated riparian habitat, whichever is greatest)
Development shall not jeopardise the resource quality (defined in NWA to include flow, water quality, aquatic biota, instream and riparian habitat) of any water resource
Maintain the desired level of protection of the resource set through the Resource Directed Measures (defined in NWA to include the Reserve, Classification System, and Resource Quality Objectives)
Development to include activities associated with – Management and safeguarding of the
water resource (e.g. rehabilitation, bank stabilisation, removal of invasive alien species)
River flow measurement Safe access to and across the river
Development should be located outside 1:100 year floodline (and delineated wetland boundary and set buffer, if relevant), unless associated with the above activities
Prevent the illegal removal of protected species
Undertake Ecological Assessment for medium to high risk activities
Adhere to Umgungundlovu District Municipality’s Biodiversity Sector Plan, including management objectives and requirements
Ensure compliance with relevant legal obligations, such as – NEMA EIA Regulations (2014) NWA NEM:BA
Maintain AtoN and demarcation markers
Appropriate agreements for all types of permitted access
UPN System & Enforcement Officer
OPS Point Wash bay &
Officer Rescue Boat
available at all times
Create awareness
Signage Monitoring
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SECONDARY CONTACT - COMBINATION
Objectives, Features & Permitted Use
Restrictions & Conditions
Development Criteria DMC
Requirements
Zone extends up to FSL, where permitted
Activities associated with little or ‘no wake’ are allowed, e.g. padding (rowing, canoeing) and fishing boats with electric motors
Additional access for – Emergencies Operational
purposes Water quality
monitoring Biomonitoring Controlled
scientific research Environmental
education Control of alien
invasive species Permissible access
at discretion of DMC
Registered Safe for Water Vessel
Valid Skipper’s License
First aid kit on board UPN date stamp UPN tag Vessels to go
through wash bay
Development to include activities associated with – Maintenance, safeguarding or
upgrade of existing infrastructure or structures
Management and safeguarding of the water resource
Safe access to the water surface
Activities to complement the permitted recreational activities
Development shall not jeopardise – Permitted recreational activities The resource quality (as defined
in NWA) of the water resource Maintain the desired level of
protection of the resource set through the Resource Directed Measures (as defined in NWA)
Development should not encroach within 100 metres of the dam’s Full Supply Level, unless associated with the above activities
Prevent the illegal removal of protected species
Adhere to Umgungundlovu District Municipality’s Biodiversity Sector Plan, including management objectives and requirements
Ensure compliance with relevant legal obligations, such as – NEMA EIA Regulations (2014) NWA
Maintain AtoN and demarcation markers
UPN System & Enforcement Officer
OPS Point Wash Bay &
Officer Rescue Boat
available at all times
Appropriate agreements for all types of permitted access
System for checking UPN Tags for recreational clubs
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SECONDARY CONTACT – PADDLING
Objectives, Features & Permitted Use
Restrictions & Conditions
Development Criteria DMC
Requirements
Zone extends up to FSL for upper dam and active river channel for upstream section of river, where permitted
Activities associated with paddling only (e.g. rowing, canoeing)
Additional access for – Emergencies Operational
purposes Water quality
monitoring Biomonitoring Controlled
scientific research Environmental
education Control of alien
invasive species Permissible
access at discretion of DMC
Registered Safe for Water Vessel
UPN date stamp UPN tag Vessels to go
through wash bay
Development to include activities associated with – Maintenance, safeguarding or
upgrade of existing infrastructure or structures
Management and safeguarding of the water resource (e.g. rehabilitation, bank stabilisation, removal of invasive alien species)
River flow measurement Safe access to and across the river
Activities to complement the permitted recreational activities
Development shall not jeopardise – Permitted recreational activities The resource quality (as defined in
NWA) of the water resource Maintain the desired level of protection of
the resource set through the Resource Directed Measures (as defined in NWA)
Development should be located outside 1:100 year floodline (and delineated wetland boundary and set buffer, if relevant), unless associated with the above activities
Prevent the illegal removal of protected species
Adhere to Umgungundlovu District Municipality’s Biodiversity Sector Plan, including management objectives and requirements
Ensure compliance with relevant legal obligations, such as – NEMA EIA Regulations (2014) NWA
Maintain AtoN and demarcation markers
UPN System & Enforcement Officer
OPS Point Wash Bay &
Officer Rescue Boat
available at all times
Appropriate agreements for all types of permitted access
System for checking UPN Tags for recreational clubs
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4.3.7 Shoreline Zonal Plan
The Shoreline Zonal Plan is provided in Figure 35. It reflects the remainder of the Nagle
Dam property, excluding the water surface. Information regarding the current and potential
activities in each zone, as well as the related management requirements, are provided in
Table 12. The RMP advocates that no development be permitted within 100 m of the Dam’s
FSL, unless if it is accepted by the DMC on a case-by-case basis and if the relevant
statutory approvals have been acquired. Note that mining (including fracking) is not
permitted on the property.
As explained in Section 2.2.8, the Reserve Management Plan (Msinsi, 2012) divided the
majority of the property into different management units. The Shoreline Zonal Plan
incorporates the wilderness area as a dedicated zone, but deviates from the remaining
management units (defined as low and high intensity in the Reserve Management Plan)
based on management objectives and the characteristics of the balance of the area.
As a minimum, the following information needs to be added to the Shoreline Zonal Plan
(once it becomes available and as relevant):
Fluctuating water levels;
Suitable location for wash bay(s);
Location of fixed and floating AtoN;
Location of demarcation markers;
Suitable location for UPN zones and boards;
1:100 year floodlines; and
Delineated riparian habitat.
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Figure 35: Shoreline Zonal Plan
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Table 12: Shoreline Zones and Management Requirements
NO GO – SAFETY & OPERATIONS
Objectives, Features & Permitted Use
Restrictions & Conditions Development Criteria DMC Requirements
Allowance for the safe operation and management of the dam
Protect the infrastructure components of the Nagle Dam, including – Dam wall and
outlet (100 m buffer)
Diversion weir with gates (100 m buffer)
Diversion channel with 100 buffer
Emergency spillway (fuse plug) (50 m buffer)
Saddle embankment
Abstraction off-takes (100 m buffer)
Upstream DWS weir (100 m buffer)
Ensure the safety of the public
Access for Umgeni Water & Msinsi
No public access, except for the following – Controlled access
over dam wall (pedestrians and vehicles)
Access through tunnel underneath diversion weir
Use of public access roads that traverse these areas
Paddlers accessing “upper dam” (upstream of diversion weir) as well as upstream section of river
Development shall not jeopardise the safe operation and management of the dam and its associated components
Development to include activities associated with the maintenance, safeguarding or upgrade of existing infrastructure or structures
Signage to be clearly displayed
Fences may be erected for safety, security and management control purposes (as required)
Rescue Boat available at all times
Create awareness Appropriate
agreements for all types of permitted access
UPN System Enforcement Officer
OPS Point Wash bay &
Officer Rescue Boat
available at all times
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RESTRICTED ACCESS - FACILITIES & GENERAL MANAGEMENT AREAS
Objectives, Features & Permitted Use
Restrictions & Conditions Development Criteria DMC Requirements
Prevent visitor’s access to operational facilities and general management areas
Maintain privacy for guests at conference and accommodation facilities
Access for Umgeni Water & Msinsi
Special consideration to future recreational facilities
Access only allowable with permission from Umgeni Water / Msinsi
Vehicles to keep to dedicated access roads
Activities shall not interfere with operation and maintenance functions, including – Msinsi Offices and
Workshop Learning Centre Soccer fields Staff quarters Aquaculture
facilities Umgeni Water
Offices Outpost building
Activities shall not pose a nuisance or security risk, or cause conflict with permissible activities at recreational and commercial facilities
Development to include activities associated with – Maintenance, safeguarding or
upgrade of existing infrastructure or structures
General upkeep of the property
Potential future recreational activities (e.g. canoe club)
Potential future recreational activities to make provision for the following – Only activities that can
demonstrate how they would not compromise water quality should be undertaken
Suitable sanitation and stormwater management
Ensure that edge effects of proposed activities do not compromise the integrity of sensitive ecosystems and the resource quality (as defined in NWA) of any water resource
Ensure compliance with relevant legal obligations, such as – NEMA EIA Regulations
(2014) NWA
Resolve encroachments onto property
Fences may be erected for safety, security and management control purposes (as required)
Appropriate agreements for all types of permitted access
UPN System & Enforcement Officer
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CONSERVATION
Objectives, Features & Permitted Use
Restrictions & Conditions
Development Criteria DMC Requirements
Safeguarding of sensitive areas, including – Dense vegetation Steep terrain Indigenous
vegetation CBAs
Shoreline along Surface Water Zonal Plan – conservation zone based on 100 m buffer (perennial watercourses only) (1:100 year floodline and riparian zone to be determined)
Access allowed for –
Emergencies
Operational purposes
Controlled scientific research
Environmental education
Removal of invasive alien species
Rehabilitation (e.g. erosion control)
Fire break management
Controlled activities associated with conservation, including guided walks
Permissible access at discretion of DMC
No go for development
No go for general recreational use
No accessing the water surface for recreational purposes
No go for any use that will jeopardise sensitive environmental features
Vehicles to keep to dedicated access roads
Note legislative requirements, such as: NWA for
regulated area of a watercourse (i.e. 1:100 year floodline or delineated riparian habitat, whichever is greatest)
Clearing indigenous vegetation, including EIA Regulations (2014), NFA and other
Development shall not jeopardise the resource quality (as defined in NWA) of any water resource
Maintain the desired level of protection of the resource set through the Resource Directed Measures (as defined in NWA)
Development to include activities associated with – Restoring and conserving biodiversity and
ecosystem patterns and processes Management and safeguarding of terrestrial
areas in a natural state and the water resource (e.g. rehabilitation, bank stabilisation, removal of invasive alien species)
Safe access to and across the river Development should –
Be located outside 1:100 year floodline (and delineated wetland boundary and set buffer, if relevant), unless associated with the above activities
Not encroach within 100 metres of the dam’s Full Supply Level, unless associated with the above activities
Only activities that can demonstrate how they would not compromise water quality should be undertaken
Suitable provision to be made for sanitation and stormwater management
Ensure that edge effects of proposed activities do not compromise the integrity of sensitive ecosystems
Prevent the illegal removal of protected species Undertake Ecological Assessment for medium to
high risk activities Adhere to Umgungundlovu District Municipality’s
Biodiversity Sector Plan, including management objectives and requirements
Ensure compliance with relevant legal obligations, such as – NEMA EIA Regulations (2014) NEM:BA
Resolve encroachments onto property
Appropriate agreements for all types of permitted access
UPN System & Enforcement Officer
Create awareness
Signage Monitoring
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WILDERNESS AREA
Objectives, Features & Permitted Use
Restrictions & Conditions
Development Criteria DMC Requirements
Wilderness area, as per the Reserve Management Plan (Msinsi, 2012)
Access for Msinsi Controlled activities
associated with conservation, including – Game viewing Guided walks Hunting
Permits for hunting
Vehicles to keep to dedicated access roads
Visitors to be accompanied by Msinsi
Controlled access for members of the community that pass through the area
Maintain the desired level of protection of the resource set through the Resource Directed Measures (as defined in NWA)
Development to include activities associated with – Restoring and conserving biodiversity and
ecosystem patterns and processes Management and safeguarding of terrestrial
areas in a natural state and the water resource Safe access to and across the river
Permissible recreational activities Development shall not jeopardise –
Permitted recreational activities The resource quality (as defined in NWA) of the
water resource Development should –
Be located outside 1:100 year floodline (and delineated wetland boundary and set buffer, if relevant), unless associated with the above activities
Not encroach within 100 metres of the dam’s Full Supply Level, unless associated with the above activities
Only activities that can demonstrate how they would not compromise water quality should be undertaken
Suitable provision to be made for sanitation and stormwater management
Ensure that edge effects of proposed activities do not compromise the integrity of sensitive ecosystems
Prevent the illegal removal of protected species Undertake Ecological Assessment for medium to
high risk activities Adhere to Umgungundlovu District Municipality’s
Biodiversity Sector Plan, including management objectives and requirements
Ensure compliance with relevant legal obligations, such as – NEMA EIA Regulations (2014) NEM:BA
Maintenance of game fencing
Prevent poaching Field rangers to
patrol Confirm feasibility of
pedestrian bridge Dedicated track to
be created for community members that pass through the area
UPN System & Enforcement Officer
Create awareness Signage Monitoring
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PUBLIC RECREATION
Objectives, Features & Permitted Use
Restrictions & Conditions
Development Criteria DMC
Requirements
Open to all visitors Permissible activities
include hiking, mountain biking, fishing, and other related activities
Includes the following – Main picnic site Umgeni picnic
site Crafts area
Adherence to rules and regulations (issued at main public access points)
Permits for fishing
Development to include activities associated with – Maintenance, safeguarding or upgrade of
existing infrastructure or structures Management and safeguarding of the
water resource Safe access to the water surface Permissible recreational activities
Development shall not jeopardise – Permitted recreational activities The resource quality (as defined in NWA)
of the water resource Development should –
Be located outside 1:100 year floodline (and delineated wetland boundary and set buffer, if relevant), unless associated with the above activities
Not encroach within 100 metres of the dam’s Full Supply Level, unless associated with the above activities
Only activities that can demonstrate how they would not compromise water quality should be undertaken
Suitable provision to be made for sanitation and stormwater management
Ensure that edge effects of proposed activities do not compromise the integrity of sensitive ecosystems
Maintain the desired level of protection of the resource set through the Resource Directed Measures (as defined in NWA)
Ensure compliance with relevant legal obligations, such as – NEMA EIA Regulations (2014) NWA
UPN System & Enforcement Officer
Appropriate agreements for all types of permitted access
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RESTRICTED RECREATION
Objectives, Features & Permitted Use
Restrictions & Conditions
Development Criteria DMC
Requirements
Access through prior arrangement with Umgeni Water / Msinsi
Permissible activities include hiking, mountain biking, fishing, and other related activities
Includes the following – Accommodation
facilities –
Nagle Lodge
Msinsi Lodge
Hatchery Lodge
Tented camps Conference Centre
Restricted access to visitors
Facilities need to be booked with Msinsi
Adherence to rules and regulations (issued at main public access point off P26)
Permits for fishing
Hiking and mountain biking to follow dedicated tracks
Development to include activities associated with – Maintenance, safeguarding or upgrade
of existing infrastructure or structures Management and safeguarding of the
water resource Safe access to the water surface Permissible recreational activities
Development shall not jeopardise – Permitted recreational activities The resource quality (as defined in
NWA) of the water resource Development should –
Be located outside 1:100 year floodline (and delineated wetland boundary and set buffer, if relevant), unless associated with the above activities
Not encroach within 100 metres of the dam’s Full Supply Level, unless associated with the above activities
Only activities that can demonstrate how they would not compromise water quality should be undertaken
Suitable provision to be made for sanitation and stormwater management
Ensure that edge effects of proposed activities do not compromise the integrity of sensitive ecosystems
Maintain the desired level of protection of the resource set through the Resource Directed Measures (as defined in NWA)
Ensure compliance with relevant legal obligations, such as – NEMA EIA Regulations (2014) NWA
UPN System & Enforcement Officer
Appropriate agreements for all types of permitted access
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4.3.8 Composite Zonal Plan
The composite RMP Zonal Plan for Nagle Dam is shown in the figure to follow.
Figure 36: Composite Zonal Plan
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4.4 Financial Plan
As mentioned, a Financial Plan generally provides information on how revenue generated
through recreational use should be used. Charges for use of the property for recreational
purposes are ideally applied towards funding water resources management, socio-economic
development and empowerment of local communities. Msinsi is charged with managing
public access and recreational activities at Nagle Dam.
Currently, the following recreational activities at Nagle Dam generate an income:
Accommodation (Nagle Lodge, Msinsi Lodge, Hatchery Lodge, tented camps);
Special events;
Conferencing;
General access for picnicking;
Game viewing;
Fishing; and
Hunting.
Figure 37: Examples of recreational facilities at Nagle Dam
There are also opportunities for PPPs which could further unlock the economic potential of
the Dam. With PPPs, the private party assumes the financial, technical and operational risks
but receives a benefit in return. A PPP could allow Umgeni Water to make a state asset such
as Nagle Dam available to private parties who wish to engage in tourism related commercial
operations. The development of PPPs in remote areas often require related infrastructure
upgrades and thus there is the opportunity for new infrastructure investment and
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development and related services which would benefit local communities. It is noted that the
P26 was being upgraded at the time of writing this report.
Although high cap PPPs result mostly in revenue generation, small cap opportunities (less
than R10 million - 2007 figures) are more likely to fulfil socio-economic objectives such as
job creation, promotion of Broad-Based Black Economic Empowerment (BBBEE), Local
Economic Development (LED) and Small, Medium and Micro-sized Enterprises (SMMEs). A
balance between high and small cap opportunities may be required to ensure that revenue
generation occurs together with the promotion of equitable access and job creation at the
Dam. The Strategic Plan (Section 4.5) proposes opportunities for PPPs for unlocking the
Dam’s socio-economic potential.
While the tariff structure can be used for revenue generation, it should not be used to deny
people access to the dam. Thus it should take into account the socio-economic status of
recreational users. For example, a sliding scale, cross subsidy fee structure and/or
contractual obligations which ensure equitable access must be considered when setting a
fee.
The Business Plans will provide financial frameworks to undertake certain prioritised
interventions.
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4.5 Strategic Plan
The Strategic Plan is informed by the objectives determined during the Visioning exercise and through research on feasible
opportunities for Nagle Dam.
The aims of the Strategic Plan are as follows:
Address the issues identified as part of stakeholder participation, survey of encumbrances and RMP research. This includes
interventions over and above what is currently in place through existing management structures; and
Provide guidance on exploring the opportunities identified at Nagle Dam.
Table 13: RMP Strategic Plan
OBJECTIVE (What do we want)
MOTIVATION (Why do we want to achieve this)
INTERVENTIONS (How do we achieve this)
MANAGEMENT SUPPORT (Who will be involved)
WATER RESOURCE MANAGEMENT
Coordinated and participative catchment
management
Reporting at forum on water quality problems at Nagle Dam
Seeking solutions to water quality problems in a collaborative manner
Participation on Catchment Management Forum
Investigate pollution sources that jeopardise the safe operation and management of the dam
Identify need to specific Business Plans to deal with water quality issues
DWS Umgeni Water & Msinsi uMngeni River Catchment
Management Forum
Manage pollution incidents
Prevent risks to water quality (e.g. eutrophication, pathogen or turbidity risks) with a resultant negative impact on raw water treatability and treatment costs
Establish protocol to pro-actively deal with pollution incidents that take place on the Nagle Dam property and adjoining areas
Establish minimum requirements for sanitation and waste management facilities on the property
Only activities that can demonstrate how they would not compromise water quality should be undertaken on the property
Umgeni Water & Msinsi DWS DMC
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OBJECTIVE (What do we want)
MOTIVATION (Why do we want to achieve this)
INTERVENTIONS (How do we achieve this)
MANAGEMENT SUPPORT (Who will be involved)
Ensure that Reserve requirements are met
The Reserve is central to water resource management and enjoys priority of use according to the NWA. The Reserve relates to the quantity and quality of water required to satisfy the following two elements: The Basic Human Needs Reserve, which
provides for essential needs of individuals The Ecological Reserve, which relates to the
water required to protect the functional integrity of aquatic ecosystems
Releases to satisfy the EWR Compliance with the Operation &
Maintenance (O&M) Manual and Operating Rules
DWS Umgeni Water & Msinsi
Comment of development
Pro-actively comment of proposed developments in the catchment and surrounding land
No adverse impacts to the dam’s management objectives as a results of adjoining developments
Establish mechanism to comment on developments in the catchment and surrounding land
Agenda item regarding developments to be included for DMC meetings
Umgeni Water & Msinsi KZN EDTEA DWS DMR COGTA Mkhambathini LM &
Umgungundlovu DM
SUSTAINABLE AND EQUITABLE UTILISATION AND ACCESS
Control encroachment
Illegal encroachment onto Nagle Dam property Encroachments into fire breaks around property
boundary Illegal encroachment into aqueducts’ servitudes
Conduct legal audit Lease agreements to be in place for all
entitled encroachments Prevent illegal encroachment –
On-going monitoring of property boundary
Maintenance of property fence Community education programme
Maintenance of aqueducts’ servitudes
Umgeni Water & Msinsi COGTA ITB Traditional Authorities Municipality
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OBJECTIVE (What do we want)
MOTIVATION (Why do we want to achieve this)
INTERVENTIONS (How do we achieve this)
MANAGEMENT SUPPORT (Who will be involved)
Control access to livestock
Uncontrolled access by livestock poses the following possible risks: The saddle embankment requires strict
management to prevent erosion. Livestock movement and grazing on the embankment may destabilise the soil
Cattle droppings are encountered throughout the property, which detracts from the visual quality of the dam and creates malodours
The cattle graze in the areas where game is kept and this poses a risk of the spread of diseases between the animals
Repair all cattle grids, including along the P26
Community education programme Access agreements to be in place if
livestock access is to be permitted Prevent livestock access to no go areas
(e.g. saddle embankment)
Umgeni Water & Msinsi COGTA ITB Traditional Authorities
Control movement of community over the Nagle Dam property
Ensure public safety Prevent access to facilities Control poaching
Create dedicated route for members of the community to follow, once the property is accessed via the tunnel at the diversion weir and the pedestrian bridge (currently undergoing feasibility study)
Provide suitable signage Prevent access to no go areas Allow for controlled access over the dam
wall Community education programme Ensure safety of people using the tunnel Feasibility study for pedestrian bridge Unofficial access points to be closed
Umgeni Water & Msinsi COGTA ITB Traditional Authorities KZN DoT Mkhambathini Local
Municipality
Create parking facilities
Insufficient space to accommodate large number of vehicles at main picnic area
Create parking facilities, based on needs assessment
Umgeni Water & Msinsi
Asses need for community access
cards
Entrance fees should not be prohibitive Support controlled access by community
Investigate a system for community access cards / sliding scale for access fees
Umgeni Water & Msinsi COGTA ITB Traditional Authorities DMC
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OBJECTIVE (What do we want)
MOTIVATION (Why do we want to achieve this)
INTERVENTIONS (How do we achieve this)
MANAGEMENT SUPPORT (Who will be involved)
Agreements with Clubs
In accordance with RMP requirements, all clubs may only access the dam if agreements are in place
Access Agreements in place for all clubs All recreational clubs should be affiliated
to a SASCOC affiliated organisation. Development targets set by the National
Organisations must be met
Umgeni Water & Msinsi DMC Recreational Clubs
Safeguard regulated area of watercourses
No development to be permitted within the 1:100 year floodline of the uMngeni River of the buffer zone of Nagle Dam
Establish the 1:100 year floodline for uMngeni River and perennial tributaries on property
Establish the buffer zone for Nagle Dam Update Shoreline Zonal Plan
Umgeni Water & Msinsi DWS DMC
Traditional ceremonies / baptisms
Strengthen relationships with local community Allow traditional ceremonies / baptisms, involving the surrounding Traditional Authorities
Agreements to be in place
Umgeni Water & Msinsi COGTA ITB Traditional Authorities
Safeguard heritage and cultural resources
A grave yard is located in the southern side of the dam. These graves are protected in terms of the KZN Heritage Act (Act No. 04 of 2008)
The exact location of these graves needs to be mapped for management purposes
Umgeni Water & Msinsi COGTA ITB Traditional Authorities
UNLOCK SOCIO-ECONOMIC POTENTIAL
Repair hydropower facility
Hydropower facility is present at the dam but is not currently functional
Potential to supply power for dam’s operational requirements
Repair and ongoing maintenance of hydropower facility
Umgeni Water & Msinsi DMC
Resuscitate fish farm Potential for aquaculture at the dam. Old
hatcheries programme hasn’t functioned for many years. Holding dams are off stream.
Investigate feasibility of reviving the fish farm through a PPP
Support community beneficiation
Umgeni Water & Msinsi DAFF DMC
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OBJECTIVE (What do we want)
MOTIVATION (Why do we want to achieve this)
INTERVENTIONS (How do we achieve this)
MANAGEMENT SUPPORT (Who will be involved)
Establish canoe club
There are two storage areas for the canoes and paddles for the Lembethe Canoe Club at the main picnic area
There are no shower facilities available for the canoeists
The Lembethe Canoe Club has attempted to formalise the canoe club but this venture has not progressed due to contractual matters
Conclude previous proposal by the Lembethe Canoe Club - upgrading of the existing canoe club house
The Lembethe Canoe Club is affiliated to KNCU (Provincial), which is affiliated to Canoeing South Africa (national federation) and SASCOC - development targets to be met
Contractual matters to be resolved Coordination between DMC, RowSA and
SASCOC to determine availability of funds
Amend Shoreline Zonal Map to accommodate this use
Umgeni Water & Msinsi DMC Lembethe Canoe Club RowSA KZN Canoe Union
Fishing programme
Development of fishing Feasibility study for co-funded fishing programme for schools
Coordination between DMC and SASCOC to determine availability of funds
DMC SASCO
Hiking and mountain biking trails
Current routes are not clearly set out / mapped Identified as definite recreational opportunity
Dedicated trails set out for hiking and mountain biking
Signage Map of routes Provide facilities (e.g. litter bins, benches
at lookouts)
Umgeni Water & Msinsi DMC
Guided walk to Table Mountain
Affords elevated view of Nagle Dam and Valley of a Thousand Hills
Longer distance trail Potential for community beneficiation Identified as possible recreational opportunity
Obtain approval from Traditional Authority
Promote community beneficiation Provide guide Potential to include cultural talk
Umgeni Water & Msinsi COGTA ITB Traditional Authorities DMC
Farmers / Craft Market Identified as possible recreational opportunity Undertake Feasibility Study Umgeni Water & Msinsi
DMC
Boat tours on dam Identified as possible recreational opportunity Undertake Feasibility Study Umgeni Water & Msinsi
DMC
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OBJECTIVE (What do we want)
MOTIVATION (Why do we want to achieve this)
INTERVENTIONS (How do we achieve this)
MANAGEMENT SUPPORT (Who will be involved)
Pedal boats on dam Identified as possible recreational opportunity Undertake Feasibility Study Umgeni Water & Msinsi
DMC
Horse trails Identified as possible recreational opportunity Undertake Feasibility Study Umgeni Water & Msinsi
DMC
Wedding venue, possibly using the
existing facilities (e.g. conference hall);
Identified as possible recreational opportunity Undertake Feasibility Study Umgeni Water & Msinsi DMC
ENSURE SAFETY OF DAM USERS
UPN System to be implemented including a formalised Rescue
Operation Point (ROP)
Formal safety system required, which is aligned with current best practices
Recreational use to be undertaken in a safe and compliant manner
UPN system to be instituted at the Dam Formal ROP to be selected
DWS Umgeni Water & Msinsi DMC
Standardised AtoN and demarcation
system to be implemented
Formalised and standardised AtoN and demarcation markers required at the Dam
Recreational use to be undertaken in a safe and compliant manner
SAMSA and DWS to undertake survey of the Dam to identify obstacles and areas which require demarcation markers
AtoN and Demarcation Markers to be put in place
Agreements between SAMSA and DWS and other recreational clubs regarding AtoN and Demarcation markers to be put in place
DWS SAMSA Umgeni Water & Msinsi DMC Recreational Clubs CIWSP
Ensure safety of dam users
Effective and timeous communication No risk to recreational users
Establish a communication system with dam users to report inter alia water levels and water quality problems that influence recreational use (e.g. E. coli, blue-green algae, etc.)
Umgeni Water & Msinsi DWS DMC
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OBJECTIVE (What do we want)
MOTIVATION (Why do we want to achieve this)
INTERVENTIONS (How do we achieve this)
MANAGEMENT SUPPORT (Who will be involved)
MANAGE BIOPHYSICAL ENVIRONMENT
Support existing environmental management
measures
Provide feedback on implementation of existing plans for Nagle Dam, including – Reserve Management Plan for Nagle Dam
and Game Reserve (Msinsi, 2012); Environmental Management Plan for Nagle
Dam – Operational Phase (Umgeni Water, 2015c)
Stakeholder Management Plan (Msinsi, 2014)
Checking on implementation of existing plans and alignment with RMP
Umgeni Water & Msinsi DMC
Management of invasive alien species
No contamination from any vessels accessing water surface
Compliance with CIWSP Recreational use to be undertaken in a compliant
manner
Implement wash bay(s) DWS Umgeni Water & Msinsi DMC CIWSP
Compliance with NEM:BA and the Alien and Invasive Species Regulations (Government Notice No. R. 598 of 1 August 2014)
Prepare Invasive Species Monitoring, Control and Eradication Plan
Umgeni Water & Msinsi
Environmental Education Programme
Promote environmental stewardship within the community and in schools
Establish Environmental Education Programmes for different target audiences (including surrounding community and schools)
Schools programme may focus on the environmental features present at the Dam, which could include other activities such as zip line, obstacle course and Zulu Cultural Experience - undertake Feasibility Study
Umgeni Water & Msinsi COGTA ITB Traditional Authorities DMC
Erosion Control and Monitoring Programme
Prevent significant erosion and risk to infrastructure
Develop and implement an erosion monitoring programme
Umgeni Water & Msinsi DMC
Targeted rehabilitation of shoreline and general property
Rehabilitation of degraded areas, particularly in areas zoned as conservation in the Zonal Plans
Identify areas to be rehabilitated (as necessary)
Develop and implement a rehabilitation and maintenance programme
Umgeni Water & Msinsi DMC
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OBJECTIVE (What do we want)
MOTIVATION (Why do we want to achieve this)
INTERVENTIONS (How do we achieve this)
MANAGEMENT SUPPORT (Who will be involved)
MANAGE BIOPHYSICAL ENVIRONMENT
Legal compliance
Ensure compliance with environmental legislation Develop legal register for all activities at Nagle Dam
Screen activities against relevant legislation
Develop maintenance plan, in accordance with the EIA Regulations (2014), for approval by DEA to facilitate future maintenance work
Umgeni Water & Msinsi DMC
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5 WAY FORWARD
5.1 Business Plans
Based on the management objectives identified for Nagle Dam (refer to Strategic Plan
contained in Section 4.5), various Business Plans will be developed which will be captured
in the final RMP deliverable. The Business Plans will summarise the operational and
financial objectives of the RMP and will contain the interventions, resources and timeframes
required to achieve these objectives.
5.2 Review Cycle
The RMP presents a twenty-year vision for Nagle Dam, which is to be achieved through the
integrated planning, management and zoning presented in Section 4 of this document and
the subsequent Business Plans.
This RMP will be reviewed every 5 years and revised as necessary, according to changing
priorities, constraints and achievements. The Business Plans will be updated annually. The
review periods for the RMP and Business Plans are shown in Figure 38.
Figure 38: RMP & BP Review
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6 CONCLUSIONS
It is believed that through the RMP development process that was undertaken, adequate
opportunities were granted to determine the perspectives, needs and concerns of the
authorities, stakeholders and community members with regards to Nagle Dam. The ensuing
RMP components, which include the vision, Management Objectives, Institutional Plan,
Zonal Plans and Strategic Plan have duly incorporated the outcomes of the process. In
particular, the findings of the Encumbrance Survey and Research Report shaped and guided
the identification of the key management priorities for the Dam.
Ultimately, the RMP serves as a tool for the sustainable and balanced management and use
of Nagle Dam. The successful implementation of this plan depends on the institutional
arrangements that are established together with the mechanisms that are to be employed,
as detailed in the RMP, to ensure that the dam’s management objectives are achieved.
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