Aurecon, LPI Mona Vale Road West Upgrade Proposal ... · Vibration compactor Water pump Mobile...

Kimbriki Resource Recovery Centre

Ku-ring-gai Chase National Park

To Kimbriki

Resource Recovery Centre

MCCAR RSCR

EEK

ROAD

BOORALIE ROAD

MONA VALE ROAD

KANA

NGRA

AV

ENUE

WIRREANDA

CREEK

Mona Vale Road West Upgrade Proposal construction area0 50 100m°

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1:4,000Projection: GDA 1994 MGA Zone 56 Figure 3.20

GarigalNational Park

WIRREANDA

ROAD

WIRREANDA ROAD

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GarigalNational Park

Baha'i Temple

ADDISON ROAD

WIRREANDA ROAD

TUMB

U RR A

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HARVEY ROAD EXTENSION

Baha'i Temple

POWDERWORKS ROAD

MONA

VALE

ROAD

WARATAH ROAD

HARVEY ROAD

ADDISON ROAD

TUMB

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WIRREANDA ROAD

WIRREANDA ROAD

WIRREANDA

ROAD

TUMBURRA STREET

DUCK HOLE TRACK

WIRREANDA CREEK

Mona Vale Road West Upgrade Proposal construction area0 50 100m

° Source: Aurecon, LPI

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Mona Vale Road West Upgrade, McCarrs Creek Road to Powder Works Road 60

Review of Environmental Factors

Early works

Subject to approval of the proposal, Roads and Maritime may undertake an early

package of works comprising the construction of an earth platform to the north of the

existing Mona Vale Road carriageway between Tumburra Street and the location of

the proposed fauna land bridge.

This would comprise:

Site clearance and installation of environmental controls

Relocation/adjustment of high voltage and communications utilities

Placement of fill material in layers

Placement of topsoil and seeding.

Construction of the earth platform would use about 85,000 m3 of material which

would be sourced from the Mona Vale Road East Upgrade Project.

Construction staging

To minimise impacts to traffic and to ensure safety risks to workers are minimised, it

is anticipated that the proposal would be constructed in stages. The preliminary

construction staging strategy comprises four stages as follows:

Stage 1: Between chainages 0–1000, carry out widening on the southern side of

the existing carriageway while keeping the traffic on the existing carriageway;

carry out intersection upgrade work at Kimbriki Road

Stage 2: Construct the new (deviated) section of carriageway from

chainage 1000 to Tumburra Street off line from the existing carriageway

Stage 3: Construct the local access road along Harvey Road including

intersection upgrade work at Powder Works Road. This would provide an

alternative access to the Wirreanda Valley area while Stage 4 is being

constructed

Stage 4: Widening on both sides from Tumburra Street to Powder Works Road.

The scope of works for each stage would be subject to review and potential revision

during detailed design and pre-construction planning.

Work methodology

Construction sequence

The work methodology for the proposal would be refined during the detailed design

phase. Construction activities would be guided by a Construction Environmental

Management Plan (CEMP) to ensure works are located within the specified works

areas and implement all safeguards as described in this REF, and any subsequent

measures included as a result of submissions.

The indicative construction sequence for the proposal is as follows:

Issue community update about upcoming roadworks

Establish environmental exclusion zones including the limits of clearing

Install temporary erosion, sedimentation and drainage controls



Establish site compound and stockpile areas

Establish construction phase traffic control, including temporary traffic signs,

safety barriers, line marking changes and similar

Remove property fences and erect temporary security fence as required

Mark trees requiring removal and carry out inspection by suitably qualified

ecologists

Clearing of vegetation

Stripping and stockpiling of topsoil by grader, excavators and trucks

Progressive relocation, adjustment and/or protection of all affected utilities,

services and signage to suit construction staging requirements.

Bulk earthworks (cut/fill operation) by grader, excavator, haul trucks

Drainage works by excavator and haul trucks

Stabilise exposed areas

Recycle suitable excavated material and incorporate unsuitable material in

earthworks within the road reserve where possible

Install Select Material Zone (SMZ) using grader, excavator, haul trucks and roller

compactors

Sprayed seal on top of SMZ

Place lean mix or asphalt sub base using paver and truck

Sprayed seal on top of lean mix concrete paving

Construct retaining walls and other structures

Prepare existing pavement for new lane surfaces using grading and milling

machine

Form new kerbs, gutters, medians and other structures using kerb machine,

concrete truck and hand tools

Construct asphaltic concrete pavement and associated works using paver and

roller

Construct footpath paving using concrete trucks and hand tools

Install temporary pavement as needed to tie-in to existing road for traffic switch,

as required

Install safety barriers where needed

Implement traffic switch to facilitate staging of works, as required

Implement final property adjustments including ancillary works inside private

property and the final boundary fence

Landscape using backhoe, trucks and hand tools

New line marking, lighting and sign posting

Site clean-up and disposal of all surplus waste materials



Remove construction traffic management and open new works to traffic.

Construction of rock cuttings

The indicative rock cutting construction sequence for the proposal is as follows:

Establish environmental exclusion zones including the limits of clearing

Install temporary erosion, sedimentation and drainage controls

Establish stockpile areas

Establish construction phase traffic control, including temporary traffic signs,

safety barriers, line marking changes and similar

Remove property fences and erect temporary security fence as required

Mark trees requiring removal and carry out inspection by suitably qualified

ecologists

Clearing of vegetation

Install protection screening where required

Stripping and stockpiling of topsoil using machinery such as grader and

excavators. Topsoil material to be removed by trucks as generated and taken to

a stockpile site

Excavation of the rock cutting by one of two possible methods:

Rock to be pre-cut in a grid pattern using an excavator mounted rock cutting

blade. Blocks of rock pulled out from the rock face one at a time using an

excavator mounted ripping claw and hauled by hauling trucks to the stockpile

site

Rock ripped using an excavator or similar vehicle. Material to be ripped in

layers until it reaches designed level. There is one rock cutting to be

excavated using this method which requires approximately 250 metres of cut

in length and around 10 metres in height. Material to be removed by trucks as

generated and either directly reused on site

Construct pavement once design level are achieved

Stabilise exposed areas

Site clean-up and disposal of all surplus waste materials

Remove construction traffic management and open new works to traffic.

Drainage works

The construction sequence for drainage works would generally involve:

Access tracks – all tracks would be within the construction footprint, and have a

layer of clean fill to create a stabilised surface and installation of sediment and

erosion controls

Pre-construction culvert inspections

Installation of erosion and sediment control facilities to minimise the impact on

receiving water quality

Construction of diversions to direct flows around the existing culverts



Excavation of culvert base slabs

Construction of the culvert foundations using granular material, piers or piles,

depending on the subsoil condition

Pouring of culvert concrete base slab

Installation of box culvert precast U-units on base

Placement of fill over units to form the base course for the road foundation

Infilling of the diversion channel with compacted fill and re-establishment of

drainage flows into the new culverts

Where necessary, scour protection would be provided upstream and/or

downstream of each culvert

Stabilise exposed areas and revegetate

Site clean-up and disposal of all surplus waste materials.

Construction hours and duration

Construction is expected to take about 30 months to complete, weather permitting. At

the time of preparation of this REF, funding for construction of the project had yet to

be confirmed and identification of a specific commencement date is therefore not

possible. However, construction is expected to follow that of the Mona Vale Road

East Upgrade Project.

The workforce would comprise up to 50 personnel during peak periods.

Construction of the proposal would be undertaken primarily during standard working

hours in accordance with the Interim Construction Noise Guideline as follows:

Monday to Friday: 7am to 6pm

Saturday: 8am to 1pm

Sundays and public holidays: no work.

It is anticipated that some work would need to occur outside of the standard working

hours to minimise traffic impacts, including utility adjustments, asphalting and line

marking. Work outside of standard hours (if required) would be in accordance with

Environmental Noise Management Manual Practice Note vii – Roadworks Outside of

Normal Working Hours (Roads and Traffic Authority, 2001) the Interim Construction

Noise Guideline (Department of Environment and Climate Change, 2009) and the

safeguards contained in this REF. This would include notifying the local community of

any works planned to be undertaken outside standard construction hours.

Plant and equipment

Construction of the proposal would be undertaken using standard road project

construction techniques. Typical plant and equipment that may be used during

construction includes items identified in Table 3-4.



Table 3-4 Plant and equipment

Activity Plant/Equipment

Clearing Chain saw

Tracked excavator

Dump truck

Bulldozer

Bogie truck and trailer

Utility adjustment Tracked excavator

Dump truck

Mobile crane


Trencher

Vibration compactor

Concrete truck

Asphalt pavement demolition Milling machine

Tracked excavator

Front end loader

Dump truck

Bulk earthworks Tracked excavator

Dump truck

Rock breaker

Bulldozer

Front end loader

Backhoe


Rock cutter

Scraper

Grader

Vibratory drum (smooth and pad foot) roller

Water cart

Lime spreader*

Mobile stabilisation plant*

* Equipment for lime stabilisation. Lime stabilisation may not be

necessary as the soil strata is likely to be consisted of sandstone.

Drainage Tracked excavator

Drilling rig

Dump truck

Front end loader

Backhoe

Concrete truck


Vibration compactor

Water pump

Mobile crane



Activity Plant/Equipment

Pavement construction Mobile crane

Concrete truck

Concrete pump

Grader

Pavement laying machine

Roller

Land bridge construction Mobile crane

Retaining wall construction Tracked excavator

Drilling rig

Dump truck

Front end loader

Backhoe

Concrete truck


Water pump

Mobile crane

Street lighting Mobile crane

Generator

Signposting and line marking Mobile crane

Truck

Earthworks

The proposal would require numerous sections of cut and fill along most of the

alignment. Fill would be required for the earth platform described in Section 3.3.1,

behind retaining walls, and at various locations for the length of the proposal.

Current estimates are that about 138,300 cubic metres of cut material would be

generated from the proposal. About 169,400 cubic metres of fill would be required

and would preferentially be sourced from suitable cut material from the proposal.

Current estimates identify about 31,100 cubic metres of additional fill would be

required. The Harvey Road extension would generate about 37,600 cubic metres of

cut material and would require about 26,300 cubic metres of fill material.

Other excavated materials would likely include milled asphalt, select material and

topsoil.

An assessment of the earthworks volumes required for both Mona Vale Road East

and Mona Vale Road West identified that there would be a surplus of material

generated from Mona Vale East. The assessment found that the rock material won

from cuts in Mona Vale East would be suitable for use as select material, reducing

the amount of fill required in Mona Vale West. The preliminary assessment has not

considered topsoil stripping or replacement.



Table 3-5 Potential material reuse on Mona Vale Road West

Material reuse Quantity (m3)

Mona Vale Road West earth platform 85,000

Mona Vale Road West SMZ requirement 23,375

Table 3-6 lists the estimated earthworks volumes for the proposal.

Table 3-6 Approximate earthworks volumes

Nature of earthworks Quantity (m3)

Removal and stockpiling of topsoil 18,690

General earthworks (cut/fill) 128,500

Imported/borrowed material 49,800

Source and quantity of materials

Materials would be sourced locally where possible, with the majority of materials to

be sourced from the Sydney region.

Table 3-7 shows the estimated quantities of particular materials which would be

required by the proposal.

Table 3-7 Estimated material quantities

Material type Quantity (m3)

Select material 30,000

Road base (base course) 4075

AC14 (asphalt base coarse) 5015

AC20 (asphalt base coarse) 17,220

Light duty pavement base (base for pathways, etc) 1880

Concrete footpath 1880

Water for construction would be sourced from available hydrants in the area. The

required quantities of water are not yet known, however the use of material such as

ready mix concrete (required for pavement and kerbs) would reduce the amount of

water required during construction. Water would also be required for compaction of

pavement layers, such as select layers to adjust the moisture content, and for dust

suppression.



Surplus material that is not able to be used on-site as part of the proposal would be

reused or disposed of in the following order of priority:

Transfer to an approved Roads and Maritime temporary stockpile site for future

use during projects or routine maintenance

Transfer to a Roads and Maritime approved site for reuse on concurrent

private/local government project (with appropriate approvals as required).

Disposal at an approved materials recycling or waste disposal facility

As otherwise provided for by the relevant waste legislation.

The process for management of excess material would be detailed in a Resource

and Waste Management Plan (RWMP) that would form part of the CEMP.

Traffic management and access

Vehicle movements

Maintaining traffic flow during construction is a key consideration for construction

traffic planning for the proposal. It is expected that a maximum of 50 construction

vehicles per day during the peak construction period would be required. The majority

of these vehicles would undertake trips either predominantly or entirely along the

Mona Vale Road corridor and local roads being upgraded as part of the proposal.

Traffic management

A Traffic Management Plan (TMP) would be prepared in accordance with the

document Traffic Control at Worksites (Roads and Traffic Authority, 2010) and Roads

and Maritime Specification G10–Control of Traffic.

The TMP would provide details of traffic switches and the traffic management

measures to be implemented during construction to ensure that traffic flow on the

surrounding network is maintained where possible. The TMP would also ensure the

safe separation of workers on site from vehicles on Mona Vale Road.

The TMP would detail specific haulage routes that construction traffic would follow

throughout the construction phase.

At this stage of planning, it is intended to maintain two traffic lanes (one each way)

during construction, however, a reduced speed limit may be introduced for the

duration of works.

Access

While the location of the site compounds and stockpile locations is yet to be

confirmed, based on the preliminary locations selected, it is considered likely that the

majority of construction related traffic would be contained within the local area.

All property accesses would be maintained throughout construction.

Ancillary facilities

At the present stage of planning, it is proposed to use the same site office location for

the Mona Vale Road East Upgrade project. This would be used for worker amenities,

project related office facilities, storage of equipment.



Alternative or additional sites may be identified during detailed design or at a later

stage during construction. The selection of any additional or alternative site

compounds and temporary stockpile sites would also be considered against the site

selection criteria detailed in Table 3-8. Should these sites be located outside of the

existing proposal construction impact area, additional environmental assessment

would be undertaken.

Table 3-8 Selection criteria for stockpile and compound sites

Selection criteria

Location Located within the project study area or directly adjacent to the

proposal

Stockpiling sites are not to be located on slopes with a gradient

greater than 2:1 horizontal to vertical.

Locate other compound sites on relatively level ground.

Services Locate site offices where they can be easily serviced with electricity

and potable water.

All ancillary sites are to have direct and safe access to the road.

Environmental Wherever possible, sites are to be located above the 1 in 100 year

flood level.

Locate facility more than 50 metres from watercourses*

No substantial vegetation clearing. Ancillary sites are to be located

on land of existing low conservation significance for flora and fauna.

Wherever possible, sites are to be located and designed to satisfy

noise and vibration management levels, relevant to the noise

catchment area, and vibration goals at the sensitive receiver (or

building, in the case of vibration). If noise management levels or

vibration goals cannot be met, feasible and reasonable mitigation

measures, the restriction of hours of operation and/or negotiated

agreements with affected parties would be considered.

Heritage Locate on sites that have a low likelihood of having Aboriginal or non-

Aboriginal heritage significance and/or potential.

* Refers to the working footprint of the facility. The land on which the site is located may

encompass or may extend within the 50 metre buffer to the watercourse.

Public utility adjustments

The section of Mona Vale Road in the study area includes utilities for Sydney Water,

Ausgrid, Jemena, Optus and Telstra. Utilities are located both overhead on poles

(electrical and communications) and underground (sewer, potable water,

communications and gas).



Electricity

Ausgrid has low-voltage and street lighting cables (415 V), distribution cables (11 kV)

and a transmission feeder (assumed to be 33 kV) that extends along the length of the

Mona Vale Road on both sides of the existing alignment. The clearance to the

transmission feeder is low at many locations along the alignment, and the road

upgrade could have direct impacts on the feeder.

Water and sewer

Sydney Water has a rising sewer main running the length of this section of Mona

Vale Road, on the northern side of the existing carriageway.

A section of 100 millimetre diameter potable water pipeline (about 10–20 metres

long) extends along the road corridor from McCarrs Creek Road to Ch 75.

Gas

Jemena has a 250 millimetre diameter secondary gas main running through the

proposed alignment. The main extends below the existing pavement from Ch 0–150,

where it crosses to the northern side of the existing alignment. It then exits the

corridor to the north at about Ch 400 before returning to the northern side of the

existing alignment at Ch 2190 (Tumburra Street). The main then crosses to the

southern side of the existing alignment at Ch 2270 and follows the southern side to

the end of the study area. The road upgrade would have some impacts on the

secondary main, where adjustment works may be required

Telecommunications

The Telstra network consists of overhead and underground assets along Mona Vale

Road. The Telstra cable is located underground along the northern side of the

existing alignment from Ch 0–405. The cable then crosses the existing alignment

overhead and continues on shared poles until Ch 1185 where it again crosses the

alignment overhead and exits the alignment to the north. The cable re-enters the

alignment underground on the northern side at Addison Road and remains on this

side until the end of the study area.

The Telstra cable appears to serve local properties only and does not appear to be a

trunk main between exchanges. Relocation should therefore be relatively

inexpensive and undertaken quickly.

Many overhead services would require relocation to underground given the proximity

of the poles to the proposed alignment. Existing underground conduits are likely to

require local adjustment to suit the revised road geometry and to provide connection

to the relocated overhead services. Any changes to conduits may also require

relocation of pits/pillars.

The Optus network consists of aerial coaxial, aerial optic fibre and underground optic

fibre cables. Some relocation / protection of Optus network assets is also likely to be

required.

Property acquisition

Property acquisitions would be required as detailed in Table 3-9. Any requirement to

lease areas would be determined during detailed design.



Table 3-9 Property acquisitions required for the Mona Vale Road West Upgrade

No. Lot / DP Ownership Type* Area (m2)

1 Lot 2, DP255466 Council Part 385

2 Lot 5, DP255466 Metropolitan Water

Sewerage And Drainage

Board

Total 3725

3 Lot 4, DP255466 Council Part 525

4 Lot 7064, DP 1051232 The State of NSW Part 655

5 Lot 7306, DP 1132678

(21 Wirreanda Road)

The State of NSW Part 13,195

6 Lot 4, DP792962 Minister administering

the NPW Act

Part 2155

7 Lot 180, DP752046 The State of NSW Part 1030

8 Lot 181, DP752046 Private Part 590



11 Lot 52, DP 1152609

(173 Mona Vale Road)

Private Part 2910

12 Lot 201, DP1054875

(169 MVR)

Minister for Education Part 6345


14 Lot 177, DP752046

(31 Addison Road)

Private Part 1570

15 Lot 2, DP213794

(30 Addison Rd)

Private Part 3710

16 Lot 4, DP1039775

(167 MVR)

Private Part 1585

17 Lot 2, DP565232


Private Part 210

18 Lot 38 DP 114318


Private Part 560


the EP&A Act

Part 245


the EP&A Act

Part 290


the EP&A Act

Part 335



The areas of land required from Ku-ring-Gai Chase National Park and Garigal

National Park have been acquired through the revocation process under the National

Parks and Wildlife Act 1974 (NPW Act) (refer Section 4.3.5).

Final acquisitions required would be confirmed through detailed design in

consultation with landowners. All property valuations and acquisitions would be

carried out in accordance with the Roads and Maritime Services Land Acquisition

Information Guide (Roads and Maritime Services, 2014b) and the Land Acquisition

(Just Terms Compensation) Act 1991.



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Statutory and planning framework

State Environmental Planning Policies

State Environmental Planning Policy (Infrastructure) 2007

State Environmental Planning Policy (Infrastructure) 2007 (ISEPP) aims to facilitate

the effective delivery of infrastructure across the State. Clause 94 of the ISEPP

permits development on any land for the purpose of a road or road infrastructure

facilities to be carried out by or on behalf of a public authority without consent.

As the proposal is for a road and road infrastructure facilities, and is to be carried out

by Roads and Maritime, it can be assessed under Part 5 of the EP&A Act.

Development consent from Northern Beaches Council is not required.

Part of the proposal is located on land within Ku-ring-Gai Chase National Park and

Garigal National Park which comprises land reserved under the NPW Act. Roads and

Maritime has acquired the subject areas of land following a revocation process under

the NPW Act.

The proposal does not affect land or development regulated by State Environmental

Planning Policy No. 14–Coastal Wetlands, State Environmental Planning Policy

No. 26–Littoral Rainforests, State Environmental Planning Policy (State and Regional

Development) 2011 or State Environmental Planning Policy (Major Development)

2005.

Part 2 of the ISEPP contains provisions for public authorities to consult with local

councils and other public authorities prior to the commencement of certain types of

development. Consultation, including consultation as required by ISEPP (where

applicable) is discussed in Section 5 of this REF.

State Environmental Planning Policy 44 Koala Habitat

Protection

State Environmental Planning Policy No.44–Koala Habitat Protection (SEPP 44)

aims to encourage the conservation and management of areas of natural vegetation

that provide habitat for koalas to ensure a permanent free living population over their

present range and reverse the current trend of koala population decline. SEPP 44

applies to a range of LGAs including Northern Beaches.

Part 2 of SEPP 44 regulates impact on koala habitats. While it strictly only applies to

proposals being assessed under Part 4 of the EP&A Act, as a matter of practice

Roads and Maritime considers SEPP 44 as part of the Part 5 assessment process.

Local Environmental Plans

The proposal is located within the Northern Beaches LGA which was established on

12 May 2016 through the amalgamation of Pittwater, Warringah and Manly Councils.

The proposal sits within the former Pittwater and Warringah LGAs and the respective

planning instruments still have effect pending gazettal of the Northern Beaches Local

Environmental Plan.



Pittwater Local Environmental Plan 2014

Development within the former Pittwater LGA is regulated under the Pittwater Local

Environmental Plan 2014 (Pittwater LEP 2014). The proposal is primarily located

within the SP2 Infrastructure (Classified Road) zone, but would also occur in the

following other zones:

RU2 Rural Landscape

RE1 Public Recreation

R2 Low Density Residential

The proposal is consistent with the objectives of the SP2 Infrastructure zone, which

are as follows:

To provide for infrastructure and related uses

To prevent development that is not compatible with or that may detract from the

provision of infrastructure.

With the exception of the RE1 Public Recreation zone, development for the purposes

of roads is permitted with development consent in the above zones. Within the RE1

Public Recreation zone, roads are prohibited. However, as noted in Section 4.1.1, the

ISEPP removes consent requirements and prohibitions that would otherwise apply to

the proposal.

Warringah Local Environmental Plan 2011

Development within the former Warringah LGA is regulated under the Warringah

Local Environmental Plan 2011 (Warringah LEP).

The existing Mona Vale Road is zoned SP2 Infrastructure. The objectives of this

zone are:

To provide for infrastructure and related uses

To prevent development that is not compatible with or that may detract from the

provision of infrastructure.

The proposal would also impact on land within the following zones:

E1 National Parks and Reserves

E3 Environmental Management

RE1 Public Recreation

Clause 94 of the ISEPP permits development on any land for the purpose of a road

or road infrastructure facilities to be carried out by or on behalf of a public authority

without consent.

Other relevant NSW legislation

Protection of the Environment Operations Act 1997

The Protection of the Environment Operations Act 1997 (POEO Act) regulates

certain activities with respect to pollution impacts (such as air, water and noise

pollution). Part 3.2 of the POEO Act requires an Environment Protection Licence

(EPL) for scheduled development work and for carrying out scheduled activities.



Item 35 of Schedule 1 to the POEO Act applies to road construction, meaning the

construction, widening or rerouting of roads. Any activity to which the definition

applies is declared to be a scheduled activity if it results in the existence of four or

more traffic lanes (other than bicycle lanes or lanes used for entry or exit) for at least:

(a) Where the road is classified, or proposed to be classified as a freeway or

tollway under the Roads Act 1993:

i. 1 kilometre of their length in the metropolitan area, or

ii. 5 kilometres of their length in any other area.

(b) Where the road is classified, or proposed to be classified, as a main road (but

not a freeway or tollway under the Roads Act 1993:

i. 3 kilometres of their length in the metropolitan area, or

ii. 5 kilometres of their length in any other service.

The proposal includes the upgrade of approximately 3.4 kilometres of a main road in

a metropolitan area and therefore is a scheduled activity and would require an EPL.

The POEO Act also identifies a number of pollution offences, including offences

relating to:

The wilful or negligent disposal of waste in a manner that harms or is likely to

harm the environment

The wilful or negligent causing of a substance to leak, spill or otherwise escape

(whether or not from a container) in a manner that harms or is likely to harm the

environment

The wilful or negligent causing of any controlled substance to be emitted into the

atmosphere in contravention of the regulations under the Ozone Protection Act

1989 and in a manner that harms or is likely to harm the environment

Water pollution

Air pollution

Noise pollution

Land pollution and waste.

The construction contractor and Roads and Maritime are required to notify the NSW

Environment Protection Authority (EPA) immediately if a pollution incident occurs that

causes or threatens material harm to the environment.

Threatened Species Conservation Act 1995

The TSC Act aims to conserve biological diversity by protecting and encouraging the

conservation of threatened species, populations and ecological communities and

their critical habitats.

An assessment of the potential impacts of the proposal on threatened species,

populations, ecological communities and critical habitat listed on the TSC Act has

been undertaken in accordance with section 5A of the EP&A Act. This identified that

there would likely be a significant impact on the following:

Duffy’s Forest Ecological Community

Grevillea caleyi (Caley’s Grevillea)

http://www.legislation.nsw.gov.au/xref/inforce/?xref=Type%3Dact%20AND%20Year%3D1989%20AND%20no%3D208&nohits=y

http://www.legislation.nsw.gov.au/xref/inforce/?xref=Type%3Dact%20AND%20Year%3D1989%20AND%20no%3D208&nohits=y



Microtis angusii (Angus’s Onion Orchid)

Pseudophryne australis (Red-crowned Toadlet)

Cercartetus nanus (Eastern Pygmy-possum)

Varanus rosenbergi (Rosenberg’s Goanna)

and would therefore require preparation of a Species Impact Statement (SIS).

Roads and Maritime submitted an application to OEH on 16 April 2015 with regard to

the requirements for the SIS. These were subsequently issued by OEH on 25 May

2015 with amended requirements issued on 21 July 2015. The SIS was prepared by

SMEC Australia. The SIS is being displayed concurrently with this REF, and can be

found on the Roads and Maritime website.

Water Management Act 2000

The Water Management Act 2000 (WM Act) provides for the sustainable and

integrated management of the water sources of NSW for the benefit of both present

and future generations. The WM Act regulates the extraction of and use of water, the

construction of works such as dams and weirs, and the carrying out of activities in or

near water sources in NSW. ‘Water sources' are defined broadly and include the

whole or any part of a river, lake, estuary, place where water occurs naturally on or

below the surface of the ground, and NSW coastal waters.

DPI Water (the former NSW Office of Water) would need to be consulted regarding

any proposed groundwater interception.

Noxious Weeds Act 1993

The Noxious Weeds Act 1993 provides for a coordinated approach to the removal

and control of scheduled noxious weeds across the NSW. No permits or approvals

are required under this Act, but it is the responsibility of Roads and Maritime to

provide for the removal and proper disposal of any listed weeds found within the

proposal site. Noxious weeds are discussed and management measures proposed in

Section 6.1.

National Parks and Wildlife Act 1974

The NPW Act provides that land may be reserved as a national park, nature reserve,

historic site, state conservation area, regional park, Aboriginal area or karst

conservation reserve.

From time to time, circumstances may arise which require the revocation,

recategorisation or adjustment of boundaries of lands reserved under the NPW Act.

Section 47L(1)(b) of the NPW Act provides that only the Government (via a Cabinet

proposal) and ultimately the NSW Parliament (via an Act of Parliament) can decide if

land reserved under the NPW Act may be revoked. The revocation of lands reserved

under the NPW Act will generally only be undertaken as an avenue of last resort and

where no other practical options are available.

Development proposals that require revocation are noted in the NPWS Revocation

Recategorisation and Road Adjustment Policy (NPWS, August 2012). This policy

identifies major Government infrastructure, an example being this proposal, as an

example of potential revocation requirements for a non-permissible activity.



Where a new non-permissible activity or development is proposed by another party

and requires the use of NPWS land, either the park boundary can be re-defined to

exclude the proposed development or the development cannot proceed because it

would encroach upon the park. For example, major Government infrastructure such

as a new highway or major upgrade of an existing road, where no suitable alternative

sites are available outside of NPWS land.

As noted in Section 4.1.1, part of the proposal is located on land within Ku-ring-Gai

Chase National Park and Garigal National Park. Roads and Maritime has acquired

the subject areas of land following the revocation process under the NPW Act.

The NPW Act is also the principal legislation dealing with Aboriginal cultural heritage

in New South Wales. Items of Aboriginal heritage (Aboriginal objects) or Aboriginal

places (declared under section 84) are protected and regulated under the NPW Act.

There are offences and penalties relating to the harm to, or desecration of, an

Aboriginal object or declared Aboriginal place. Harm includes to destroy, deface,

damage or move an object or place.

Under section 90(1) of the Act, the Director-General (now the Chief Executive of

OEH) may issue an Aboriginal heritage impact permit for an activity which will harm

an Aboriginal object. The regulation of Aboriginal heritage impact permits is provided

in Part 6 Division 2 of the Act.

An assessment of the potential for the proposal to impact on Aboriginal heritage

objects or places has been undertaken (refer to Section 6.5 and to Appendix D).

While there are a number of recorded Aboriginal sites near the proposed area of

works, these sites would not be directly affected and therefore no permit would be

required.

Heritage Act 1977

The Heritage Act 1977 provides for the protection and conservation of NSW’s

environmental heritage.

Under the Act, an item is defined as a place, building, work, relic, moveable object or

precinct and a relic is defined as any deposit, artefact, object or material evidence

that:

Relates to the settlement of the area that comprises NSW, not being Aboriginal

settlement, and

Is of State or local heritage significance.

Section 139 requires an excavation permit to disturb or excavate any land knowing or

having reasonable cause to suspect that the disturbance or excavation will or is likely

to result in a relic being discovered, exposed, moved, damaged or destroyed. A

permit is also required to disturb or excavate any land on which the person has

discovered or exposed a relic.

Based on the findings of the historic heritage assessment (refer Section 6.6 and

Appendix E), it is not expected that an excavation permit would be required for the

proposal.



Commonwealth legislation

Environment Protection and Biodiversity Conservation Act 1999

Under the EPBC Act, a referral is required to the Australian Government for

proposed ‘actions that have the potential to significantly impact on matters of national

environmental significance or the environment of Commonwealth land.

For ecological communities and species listed under NSW legislation and under the

EPBC Act, there is potential for duplication of the assessment process to satisfy the

requirements of NSW and Commonwealth legislation. In response to this, Roads and

Maritime carried out a strategic assessment of its environmental assessment and

decision-making processes for projects that would not be classified as State

significant infrastructure. The final assessment was submitted to the Australian

Government Department of the Environment in June 2015 for its evaluation against

the requirements of the EPBC Act. The strategic assessment was approved by the

Australian Government Minister for the Environment in September 2015.

The approval means that certain roads and traffic management works undertaken by

Roads and Maritime do not require further consideration under the EPBC Act if

undertaken in accordance with the Program Report – Strategic Assessment of

environmental assessment and decision making by NSW Roads and Maritime

Services, May 2015 (the Program).

The Program applies to eight broad groups of activities identified in Appendix C to

the Program Report. One of these groups relates to ‘primary infrastructure work’ and

the proposed upgrade of Mona Vale Road West would fall under the definition of this

activity.

The Program also applies to certain Protected Matters as identified in Appendix D to

the Program Report. Three are relevant to the proposed upgrade of Mona Vale Road

West:

Grevillea caleyi (Caley’s Grevillea)

Microtis angusii (Angus’s Onion Orchid)

Giant Burrowing Frog (Heleioporus australiacus).

Consideration of impacts upon these three species is provided in the separate SIS

prepared for the proposal and in Section 6.1 of the REF. As per the approved

Strategic Assessment under the EPBC Act (Roads and Maritime, 2015), these

documents would satisfy assessment requirements under the EPBC Act.

Confirmation of statutory position

The proponent and determining authority for the proposed Mona Vale Road West

Upgrade – McCarrs Creek Road, Terrey Hills to Powder Works Road, Ingleside is

NSW Roads and Maritime Services. State Environmental Planning Policy

(Infrastructure) 2007 provides that the proposed works may be carried out without the

need for development consent and are therefore subject to assessment under Part 5

of the EP&A Act.

The matters prescribed by clause 228 of the Environmental Planning and

Assessment Regulation 2000 for consideration by assessments under Part 5 are

reviewed at Appendix A.



Referral of the proposal to the Australian Government Department of the

Environment and Energy is not considered necessary.

Section 7 lists all relevant licenses, permits, notifications and approvals needed to

construct and operate the proposal.



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Stakeholder and community consultation

Consultation strategy

The communication and engagement objectives for the proposal are to:

Enhance transparency and public accountability

Ensure that decision-making is inclusive of diverse community ideas and opinions

Ensure that strategic planning, project development, and service delivery meets

‘the balance of community’ needs and expectations

Generate organisational efficiencies based on collaborative decision-making and

enhancement of public trust

Provide regular and timely information to community and stakeholders on the

upgrade of Mona Vale Road

Provide clear and concise information about when we are seeking feedback from

the community and stakeholders and what they can comment on versus what are

non-changeable aspects of the upgrade of Mona Vale Road

Ensure impacts on community members and stakeholders are evaluated and this

information is then used to drive the strategy for engagement and consultation.

A number of stakeholders were identified as part of the consultation process. These

stakeholders included:

Local community, including property owners, businesses, community groups and

those directly affected by the proposal

Local schools and child care centres

Emergency services and NSW Health

Government agencies including Northern Beaches Council (former Pittwater and

Warringah Councils), the Department of Premier and Cabinet, UrbanGrowth

NSW, Transport for NSW, State Transit and the Office of Environment and

Heritage

Regional community members, including road users, users of local facilities and

services, and residents of the wider Northern Beaches area.

Community involvement

Roads and Maritime commenced community consultation in May 2011 with the

proposal announcement. Since then, it has provided the community with a range of

opportunities to comment on the proposal. These have included the following:

Provision of information and an invitation to comment – September to November

2011

Community Consultation Summary Report – April 2012

Community Update – presentation of three options, distributed to 5000 homes

and businesses in Terrey Hills, Ingleside, Duffys Forest, Belrose and Elanora

Heights – October 2012

Public display of Route Options Report – October to December 2012



Community Consultation Summary Report – May 2013

Community Update – presentation of preferred option – August 2013

Community Update – description of the proposal and request for submissions –

October 2014.

In addition to the community updates and public displays, participation and

communication activities conducted during this period included:

Community information sessions

Information on the Roads and Maritime website

Newspaper advertising

Media activities

Submission response letter.

Three community information sessions were held where the project team was

available to answer questions and receive feedback on the proposed road upgrades

for Mona Vale Road East and West (Mona Vale Road East is the subject of a

separate environmental impact assessment report).

Details of the sessions that were held are as follows:

Thursday 23 October 2015 from 5pm-8pm at the German International School

(Multi-purpose room), 33 Myoora Road at Terrey Hills

Saturday 25 October 2015 from 10am-2pm at the Mona Vale Memorial Hall (Main

Hall), 1606 Pittwater Road at Mona Vale

Saturday 1 November 2015 from 9am-1pm at the German International School

(Multi-purpose room), 33 Myoora Road at Terrey Hills.

During the public display period a total of 94 submissions were received, with

comments relating to both Mona Vale Road East Upgrade (subject of a separate

project REF) and Mona Vale Road West Upgrade (subject of this REF). Late

responses received after the 14 November 2014 deadline were accepted and are

considered in this REF.

Table 5-1 reviews the issues raised by respondents and the Roads and Maritime

responses to those issues. Where relevant a reference to other sections of this REF

is also provided.

Further detail is presented in the Community Consultation Report (Roads and

Maritime, 2015) available on the project website.



Table 5-1 Community issues and responses

Issue Community comments and issues raised Roads and Maritime response Where addressed

in REF

General There are concerns that the proposed road

widening is not providing a long term solution

Roads and Maritime is working closely with Northern Beaches

Council and the Department of Planning and Environment and

has taken the projected traffic into account in the traffic

modelling for the proposed road upgrades for Mona Vale

Road East and West. The traffic projections also include the

impacts of future residential land releases in the area. The

proposed road widening would not preclude additional lanes

in the future using the widened carriageway

Section 6.4

There was a request for the proposed road

upgrades to be designed to emulate the free

flowing advantages of a freeway

Roads and Maritime has considered requirements for future

widening. A freeway/motorway style road would require a

larger construction footprint than what is currently proposed

for the upgrades to Mona Vale Road East and West and

would not be consistent with Mona Vale Road between Terrey

Hills and Pymble. Most of the proposed road upgrade follows

the current Mona Vale Road alignment along a ridge line

through two national parks. A motorway style road would not

accommodate local access requirements. These factors,

together with the topography of the area, must be taken into

consideration in determining the practical ‘footprint’ of the

project. The road upgrades that have been proposed by

Roads and Maritime would provide road users with a better

travelling experience and would improve safety and traffic

efficiency.

This table.




in REF

Constructability Some residents are concerned that the proposed

road upgrades have not taken the current state

of the rock cliffs and rock faces into account,

particularly the impacts on the cliffs on the

northern side of Mona Vale Road heading east.

Roads and Maritime has carried out various technical

investigations to inform the design of the proposed road

upgrades, including geotechnical investigations. Geotechnical

investigations contribute to information on rock face stability.

Where necessary, rock faces would be stabilised as part of

construction.

Section 3.2.14

Maintenance Concerned about concentrated stormwater flows

entering the bushland untreated and how Roads

and Maritime will manage water running off the

road

The design has been carried out to mimic the present day

condition with regard to discharge of water post development

of the proposal

Section 6.3.3 and

Appendix D.

Requests were made to ensure that the surface,

maintenance and clearing of debris on the

upgraded road are maintained to create and

retain a safe cycle route.

Roads and Maritime maintenance contractors would be

required to maintain the widened road including the road

shoulders once the upgrade is completed.

This table.

Cost

effectiveness

Requests were made to ensure the proposed

road upgrades catered for future capacity and

additional lanes.

Roads and Maritime has considered capacity requirements for

future upgrades including the increased traffic from future land

releases in the area. Most of the proposed road upgrade

follows the current Mona Vale Road alignment along a ridge

line through two national parks. The road design, which allows

for the additional two lanes of traffic, would ensure that

impacts on these national parks are minimised and that the

project ‘footprint’ is minimised.

Section 3.2.7 and

Section 6.4




in REF

Public transport Improve the frequency and duration of bus

services along Mona Vale Road - this would

reduce traffic along Mona Vale Road and

beyond

Bus timetabling and planning is managed by Transport for

NSW. Roads and Maritime is working with Transport for NSW

to understand their future requirements for public transport

along this road corridor. Roads and Maritime has also

forwarded this request to Transport for NSW.

Section 3.2.10

Pedestrian

facilities

Some members of the community made

requests to provide additional pedestrian

facilities including:

Provide a pedestrian bridge rather than

fauna underpasses and overpasses

Provide safe pedestrian crossings at key

intersections along Mona Vale Road and

pedestrian bridges

Provide pedestrian overpass and underpass

facilities at intersections.

The traffic modelling, which is based on existing and

proposed pedestrian demand, shows that pedestrian bridges

are not warranted.

New pedestrian facilities proposed as part of the Mona Vale

West upgrades include:

An off-road shared path (for use by pedestrians and

cyclists) running parallel to the Mona Vale Road

alignment along the length of the upgrade to connect

Ingleside with Terrey Hills

A new signalised pedestrian crossing at the intersection of

Mona Vale Road with Kimbriki Road.

Section 3.2.12




in REF

Horse rider

facilities

Request for horse riding corridor

Trails and/or shared paths for horse riders

Request to provide trails for horse riders linking

the national parks and the trail link between the

Chiltern trail and duck ponds Provide a safe

crossing, underpass or overpass for horse

riders.

Provision of a horse riding corridor and additional trails for

horse riders linking the national parks with other trails are

outside the scope of work for this project.

Consideration was given to providing a trail as part of the

proposal. However, as part of the revised design undertaken

in 2016, the formerly proposed Wirreanda Road works are no

longer required including the horse trails.

Horse riders would be able to safely cross Mona Vale Road

once they have dismounted at a new signalised pedestrian

crossing at traffic lights at the intersection of Mona Vale Road

and Kimbriki Road.

Horse riders would also be able to safely cross a single lane

of traffic at Tumburra Street which connects to the Caleyi

Trail.

This table.

Cyclist facilities Provide off-road cycling connections. An off-road shared path along the length of the upgrade work

would be provided.

Section 3.2.12

Some residents are concerned that the proposed

road upgrades for Mona Vale Road East and

West do not connect at Ingleside. This is a

safety concern for cyclists as the wide shoulders

vary in width and they will be forced into

narrower cycle lanes which collect debris and

nails.

Roads and Maritime would explore options for improving the

cycle connections between the two projects in consultation

with Northern Beaches Council.

Section 3.2.12




in REF

Signage should be provided to show that cyclists

are permitted to use the road and to make

drivers aware of cyclists.

Appropriate signage indicating that shared path is for the use

of cyclists and pedestrians. The proposed road upgrade

would also provide 3.0 metre wide shoulders on Mona Vale

Road West for on-road cyclists. Appropriate signage would be

provided indicating that the shoulders can be used by cyclists.

This table.

Intersection

controls

Opposed to lights at Kimbriki Road intersection,

as they will cause a traffic bottleneck, and safety

issues as trucks may have trouble stopping as

they descend

The proposed signalised intersection at Kimbriki Road has

been subject to a road safety and design modified to comply

with the safety audit findings and relevant design standards.

Section 6.4.3

Road safety Concerned about trucks descending Mona Vale

Road eastbound towards Kimbriki Road

intersection and their ability to stop – suggest

flashing lights to warn drivers of the traffic lights

This would be further considered during detailed design and

would be subject to a detailed road safety audit. Findings

resulting from the road safety audit would be implemented

before finalising design,

This table.

Fauna fencing required to avoid vehicle damage

due to wildlife collisions

The fauna connectivity strategy would be prepared during the

detailed design including identification and detailing of fauna

fencing.

Section 3.2.11 and

Section 6.1.4

Heavy vehicle

safety

Clearance height of the pass under Mona Vale

Road for access to Tumburra Street to

accommodate the large trucks

The current proposal is for an at-grade T-intersection at this

location.

This table.

The proposed roundabouts would need to be

able to handle large trucks because there are

many of them using all the roads around the

area

There are no roundabouts in the proposed upgrade. This table.




in REF

Noise and

vibration

Sound proofing or protective barriers for

residents

As part of this REF a noise assessment has been prepared to

determine the noise impacts of the proposal on surrounding

land uses including residents. This noise assessment

considers the potential noise impact from construction and

operation of the proposal and advises on potential noise

treatments (to be determined during detailed design and in

consultation with land owners).

Section 6.8 and

Appendix I.

Fauna Fauna fencing and connectivity to reduce roadkill The proposed upgrade includes a fauna land bridge and a

fauna underpass on Mona Vale Road and a fauna underpass

on the Harvey Road extension. Fauna fencing would be

provided to restrict access by animals to the carriageway and

to direct them to connectivity structures.

Section 3.2.11 and

Section 6.1

VMS and wildlife signs along the road to alert

drivers to be alert for wildlife

This would be further considered during the detailed design

and would be subject to a detailed road safety audit. Findings

resulting from the road safety audit would be implemented

before finalising design,

This table.

Overpasses for wildlife between Ku-ring-gai and

Garigal National Parks, particularly the swamp

wallabies

A fauna overpass connecting the two National Parks is part of

the proposal.

Section 3.2.11

Roads and Maritime should investigate the

installation of glider poles and canopy bridges at

appropriate locations.

The proposed upgrade includes a fauna land bridge and a

fauna underpass on Mona Vale Road and a fauna underpass

on the Harvey Road extension. It is not proposed to provide

glider poles or canopy bridges.

Section 3.2.11

Flora Concerned about the effects on flora such as

Grevillea caleyi

Biodiversity impacts have been assessed through a Species

Impact Statement

Section 6.1 and SIS




in REF

Collect seed and translocate soil where good

bushland is impacted.

Noted. This table.

Aboriginal

heritage

Concerns about the indigenous rock carving in

the area and how Roads and Maritime will

address this

The entire proposed carriageway has been deviated to the

north to be well clear of the indigenous rock carving.

Section 2.4



Aboriginal community involvement

The proposal has been considered against the requirements of the Procedure for

Aboriginal Cultural Heritage Consultation and Investigation (PACHCI) (Roads and

Maritime Services, 2011). This procedure is generally consistent with the Aboriginal

Cultural Heritage Consultation Requirements for Proponents 2010 (Department of

Environment, Climate Change and Water, 2010). An outline of the procedure is

presented in Table 5-2.

Table 5-2 Outline of PACHCI process

Stage Description

Stage 1 Initial Roads and Maritime assessment.

Desktop assessment to determine whether a Roads and Maritime project

is likely to harm Aboriginal cultural heritage, and whether further

assessment or investigation is required.

Stage 2 Desktop assessment and site survey.

Further assessment and a survey with specific Aboriginal stakeholders

and an archaeologist to assess whether a project would impact

Aboriginal cultural heritage.

Stage 3 Formal consultation and preparation of cultural heritage assessment

report.

Aboriginal parties must be involved in the preparation of these reports in

accordance with legislative requirements and the Aboriginal cultural

heritage consultation requirements for proponents 2010 (Department of

Environment, Climate Change and Water, 2010).

Stage 4 Implement project mitigation measures.

Undertake salvage and/or project implementation in accordance with an

AHIP and/or a Part 5.1/Part 4 approval or Part 5 determination obtained

under the Environmental Planning and Assessment Act 1979.

Following stage 1 of the PACHCI process, Roads and Maritime noted the presence

of previously recorded Aboriginal sites near the proposal site and decided that further

assessment was needed. An Aboriginal archaeological survey report (refer

Section 6.5 and Appendix D) was then prepared by Kelleher Nightingale in

accordance with the requirements of the PACHCI and the Code of Practice for

Archaeological Investigation of Aboriginal Objects in New South Wales: Part 6

National Parks and Wildlife Act 1974 (Department of Environment, Climate Change

and Water, 2010).

The Aboriginal archaeological survey report was prepared in consultation with the

Metropolitan Local Aboriginal Land Council (MLALC). Representatives of MLALC

participated in archaeological surveys carried out in May 2011 and subsequently

provided reports that were then considered as part of the assessment process.

Changes to the concept design resulted in the proposed works exceeding the



previous survey area. An additional archaeological survey was undertaken with a

representative of the MLALC in May 2015 to assess these additional areas.

Following consideration of the Aboriginal archaeological survey report, Roads and

Maritime decided that impacts to Aboriginal sites would be unlikely provided suitable

safeguards are implemented.

ISEPP consultation

Part 2, Division 1, Clauses 13-15 of the ISEPP specify consultation requirements for

infrastructure development to be carried out under the ISEPP. These largely relate to

the requirement for public authorities other than local councils to consult with the

relevant local council as part of the assessment process. Consultation is required if

the proposal would affect council infrastructure or services, impact on a local heritage

item or if development would impact on flood liable lands.

Table 5-3 provides a summary of the consultation requirements for the proposal in

accordance with the ISEPP.

Table 5-3 Summary of ISEPP consultation requirements

Clause Details Response

13(1)(a) Likely to have a substantial impact on stormwater

management services provided by council.

No.

13(1)(b) Likely to generate traffic to an extent that will strain the

capacity of the road system in a local government area.

No.

13(1)(c) Involves connection to, and substantial impact on the

capacity of any part of a sewerage system owned by a

council.

No.

13(1)(d) Involves connection to, and use of a substantial volume of

water from, any part of a water supply system owned by a

council.

No.

13(1)(e) Involves the installation of a temporary structure on, or the

enclosing of, a public place that is under a council’s

management or control that is likely to cause a disruption

to pedestrian or vehicular traffic that is not minor or

inconsequential.

Yes.

13(1)(f) Involves excavation that is not minor or inconsequential of

the surface of, or a footpath adjacent to, a road for which

council is the roads authority under the Roads Act.

Yes, Council-

owned

footpaths and

roads would be

subject to

excavation as

part of the

proposal.

14(1)(a) Is likely to have an impact that is not minor or

inconsequential on a local heritage item (other than a local

heritage item that is also a State heritage item) or a

heritage conservation area.

No.



Clause Details Response

15(2) Development that is to be carried out on flood liable land

that may be carried out without consent and that would

change flood patterns other than to a minor extent.

No.

16(2)(a) development adjacent to land reserved under the National

Parks and Wildlife Act 1974

The proposal

would result in

impacts on

national parks

estate – Ku-

ring-Gai Chase

National Park

and Garigal

National Park.

16(2)(b) development adjacent to a marine park declared under the

Marine Parks Act 1997

No.

16(2)(c) Development adjacent to an aquatic reserve declared

under the Fisheries Management Act 1994

No.

16(2)(d) Development in the foreshore area within the meaning of

the Sydney Harbour Foreshore Authority Act 1998

No.

16(2)(e) Development comprising a fixed or floating structure in or

over navigable waters—the Maritime Authority of NSW

No.

16(2)(f) Development for the purposes of an educational

establishment, health services facility, correctional centre

or group home, or for residential purposes, in an area that

is bush fire prone land (as defined by the Act).

No.

A formal letter of notification, in accordance with clause 13-16 of the ISEPP, was sent

to OEH, Warringah Council and Pittwater Council on 7 November and 10 November

2014 respectively. Copies of this correspondence are provided in Appendix B.

A response from Warringah Council was received on 5 December 2014 and a

response from OEH received on 5 December 2014. Table 5-4 reviews the issues

raised by Council and OEH, with the Roads and Maritime response to those issues.

Consultation with Northern Beaches Council is ongoing.

Table 5-4 Warringah Council and OEH issues and responses

Issue Response

Warringah Council

Consideration be given to construction

impacts on Kimbriki Road and appropriate

traffic management measures implemented

during construction.

A detailed traffic management plan would

be prepared and approval obtained from

TMC prior to construction.



Issue Response

Warringah Council

Consideration should be given to assessing

the safety of merging traffic from Booralie

Road/McCarrs Creek Road into Mona Vale

Road (westbound) once the works are

complete.

This intersection is outside the scope of

the current proposal.

To reduce delays and queuing at the

McCarrs Creek Road roundabout resulting

from increased traffic flow on Mona Vale

Road, consideration should be given to

realigning McCarrs Creek Road (and/or

creating a left turn out of McCarrs Creek

Road directly with Mona Vale Road). Booralie

Road intersection could also be realigned to

improve traffic flow.

This intersection is outside the scope of

the current proposal.

Ensure there is no downstream impact on

Deep Creek tributaries and Coastal Upland

Swamp areas both during and after

construction.

These matters would be considered in

detail during the detailed design phase of

the project.

It is recommended that a broad landscape

based offset strategy is implemented so as to

group the offset requirements of both Mona

Vale Road Upgrades and the Northern

Beaches Hospital Connectivity Upgrades. It

is recommended that any potential offset

sites be sought within the Warringah LGA as

preference.

Roads and Maritime’s offset strategy

would involve both the Mona Vale Road

upgrade and the Northern Beaches

Hospital road connectivity works.

Warringah Council supports commitments to

best practice in wildlife crossing structures

that are built to the maximum scale possible,

such as a land bridge.

Noted.

The temporary and permanent stormwater

and erosion control basins proposed by

Roads and Maritime should be designed in

accordance with Council’s On Site

stormwater detention technical specification.

Temporary and permanent water quality

basins would be designed in accordance

with the ‘Blue Book’ and Council’s on-site

detention specification.

Ongoing liaisons and correspondence have

been occurring between Roads and Maritime

and Council in regards to both the Council-

planned upgrade of Kimbriki Road and the

internal access road into the waste facility, as

well as Roads and Maritime planned Mona

Vale Road works. Parties have agreed to

minimise the extent of abortive works that

Council may undertake on the planned

upgrade of Kimbriki Road. Agreed outcomes

The intersection of Mona Vale Road and

Kimbriki Road has been further refined to

move the alignment to the north to enable

a more level storage platform for heavy

vehicles to stand.



Issue Response

Warringah Council

were listed in Council’s ISEPP response

letter relating to :

Compatibility of Council’s design and

Roads and Maritime design – agreed tie

in point.

Design gradients – maximum grade of

12% (with a possibility of increasing to

14% if compatible to AS/Austroads).

The final design by Council matches

existing levels in Kimbriki Road. By

matching these current levels the vertical

alignment is not compliant to Austroads

standards. It is anticipated that Roads and

Maritime design and works will rectify

these non-conformances.

Heavy vehicle design considerations –

Roads and Maritime need to consider

potential issues with heavy vehicles

starting from rest on grade.

Office of Environment and Heritage

OEH notes that proposed land bridge may

require revocation of some OEH land and

therefore requests full consultation and

involvement in the decision making process.

Revocation process has been completed.

Impacts on threatened species and

endangered ecological communities need to

be fully addressed.

A Species Impact Statement has been

prepared as part of the Mona Vale Road

West project and will be exhibited for

community and stakeholder comment at

the same time as the REF exhibition.

A summary of impacts to threatened

species is provided in Section 6.1 of the

REF.

Reference should be made in the REF to any

local ‘hot spot’ roadkill studies including any

undertaken by Roads and Maritime.

Table 8 in the Species Impact Statement

provides a list of all references consulted

including reports of roadkill studies.

Roads and Maritime should consider

measures to avoid clearing of hollow bearing

trees and other important habitat.

Refer to biodiversity safeguards and

mitigation measures provided in

Section 6.1.4

Assessment should consider all options to

avoid and mitigate any impacts on these

areas. Although the impacts of individual

works may be considered low, consideration

should be given to cumulative impacts for

each segment of work, as when taken

together, these may be significant.

An options assessment was undertaken

during project development, taking into

consideration the potential impact of

environmentally sensitive areas (refer to

Section 2.4).

Development of the concept design has

considered the identified environmentally



Issue Response

Warringah Council

sensitive areas and has first sought to

avoid impact. Where certain impacts were

deemed unavoidable, consideration was

given to reduce impact, manage or offset

impact in that order.



Section 6.1.4

Should certain impacts be unavoidable, OEH

recommends that Roads and Maritime

develop an offset strategy to address the

direct and indirect impacts of the proposed

works. OEH recommends the use of the

Biobanking Assessment Method to calculate

the required offsets and address the OEH

Principles for Biodiversity Offsets in NSW.



Section 6.1.4

The REF should include a full consideration

of impacts on:

The REF and associated Technical

Specialist Reports (provided as

Appendices to the REF) have considered

the listed impacts and a summary of the

assessment is provided in the following

sections of the REF:

The natural and cultural values of the

adjoining national parks in accordance

with the Guidelines for developments

adjoining land and water managed by the

Department of Environment, Climate

Change and Water (2010).

Section 6.6

Threatened species, populations and

ecological communities and other

environmentally sensitive areas such as

rock outcrops

Section 6.1

Aboriginal heritage values Section 6.5

Effects upon wildlife of road widening

including reduced corridors/connectivity

and increased risk of road kills

Section 6.1

Potential for weed invasion into the

adjoining reserve areas

Section 6.1

Avoidance and protection of

environmentally sensitive areas

Section 2.4, Section 6.1, Section 6.5

Management of stormwater runoff Section 3.2.6, Section 6.3

Sedimentation and erosion control Section 6.3



Issue Response

Warringah Council

Site rehabilitation and weed management. Section 6.1.4

Government agency and stakeholder involvement

Meetings and briefings were held with key government agencies and stakeholders.

These meetings were designed to ensure agency and stakeholder issues and

concerns were understood, and considered through the preparation of the concept

design and environmental assessment, and that attendees had an opportunity to

discuss any aspect of the proposal. Additionally phone calls, emails and various

correspondence has been ongoing for the project.

Table 5-5 provides a summary of the consultation undertaken and issues raised by

respective government agencies and stakeholders and where these issues have

been addressed in the REF.

Table 5-5 Government agencies and stakeholders issues

Issue Response / Where addressed in REF

Department of Planning and Environment

Construction impact area boundaries should

be minimised to the greatest extent possible.

During concept design preparation, due

consideration has been given to reducing

the construction impact area where

possible against the project objectives.

The final construction impact area is

shown on Figures 3-15 to 3-19.

Traffic modelling to consider anticipated

traffic numbers associated with other local

projects known to be in development, i.e.

Ingleside land release.

The traffic impact assessment prepared

for the project considered anticipated

future growth in the locality and increased

traffic numbers associated with proposed

developments in the locality, including the

Ingleside land release.

Collaboration should be ongoing between

Roads and Maritime, the Department of

Planning and Environment in regards to the

Ingleside Land Release project

Roads and Maritime would continue to

identify and manage issues of interest or

concern to the community, government

agencies and stakeholders during the

assessment and approval process and, if

the proposal is approved, during the

detailed design process and construction

stage.



Issue Response / Where addressed in REF

Ingleside Reference Group

(coordinated by Department of Planning and

Council)

Environment and Northern Beaches

Pleased with the consultation and

collaboration between the proposal and the

Ingleside Land Release project.

Roads and Maritime would continue to

identify and manage issues of interest or

concern to the community, government

agencies and stakeholders during the

assessment and approval process and, if

the proposal is approved, during the

detailed design process and construction

stage.

Fauna connectivity should be considered

across the study area.

Fauna connectivity measures proposed

as part of the proposal are outlined in

Section 3.2.11 and Section 6.1

Urban design, and pedestrian and cycle

connectivity (shared paths) should be

considered as part of the proposal to facilitate

pedestrian and cycle accessibility and to

maintain the ‘beaches’ landscape.

Section 3.2.12 describes the proposed off

road pedestrian and cycle paths.

Section 6.7 summarises the Landscape

Character/Visual Impact assessment and

Urban Design Study prepared for the

proposal. It includes safeguards to ensure

that the urban design objectives and

outcomes developed for the proposal are

incorporated into the detailed design

stage and implemented.

Utility authorities

Roads and Maritime consulted with the

following utility authorities regarding the

proposal:

Sydney Water

Ausgrid

NBNCo

Jemena

Optus

Telstra

Issues discussed included utility

requirements:

Relocations, protection and agreements

Corridors

Joint use trenches and opportunities

Future development utility requirements.

Outcomes of the consultation and

subsequent utility authority requirements

were incorporated into the draft design

and Utility Investigation Report (Cardno,

2014).



Ongoing or future consultation

This REF will be placed on public exhibition and community comments will be invited.

All comments received will be considered in finalising the proposal design. The

community would be kept informed of any further changes to the proposal resulting

from this and any future consultation process.

Information sessions will be held during the REF public display period. Details of

these information dates and locations would be advertised prior to the events and

issued in a Roads and Maritime Community Update.

In addition, the following ongoing consultation would be undertaken:

Consultation with community stakeholders to assist in managing impacts during

construction

Follow-up meetings to discuss access arrangements with those landholders

whose access is shown on the concept design to be directly affected

Ongoing updates to the immediately affected community during the detailed

design phase and the construction period

Ongoing consultation with Northern Beaches Council and other relevant

government agencies.

A 24-hour project information telephone number would also be established for the

construction phase and a project website would be maintained.

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