Water System Resiliency RENEW Program · 2020-06-25 · Pipe Prioritization Model Preliminary...
Transcript of Water System Resiliency RENEW Program · 2020-06-25 · Pipe Prioritization Model Preliminary...
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Water System Resiliency
RENEW Program June 23, 2020
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Purpose
RENEW
Provide best
possible water
quality and utility
service
Proactively
addressing aging
infrastructure now
Reducing the
likelihood of future
disruptive and
costly emergency
repairs
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About RENEW
In order to provide customers with the best water quality and
utility service, Middlesex Water Company (MWC) is in the
process of replacing pipes within its distribution system that
are at the end of their useful life.
Middlesex Water Company has approximately 732 miles of
transmission and distribution mains in service area.
Main driver for the RENEW program is to maintain 100 Year
Replacement schedule for all distribution system assets.
Equates to ±38,000 LF of pipe replacement per year.
Water for the Future
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The Future of RENEWGoals of RENEW
Optimize the
Selection of Assetts
Design Most
Practical Solution
Efficently Construct
& Implement New
Assetts
“Our RENEW Program helps us to better
preserve our water resources by
methodically restoring the integrity of
our water distribution system within the
project scope area, thereby minimizing
the potential of future leaks or main
breaks in that vicinity”
- Dennis Doll , Chief Executive Officer
Middlesex Water Company
”
1 2 3
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RENEW History
Preliminary Engineering
Year Township/s Total Linear Footage of
Main Replaced
2016 Edison, South Amboy 25,000 LF
2017 South Plainfield 30,000 LF
2018 Woodbridge 26,000 LF
2019 Carteret 25,000 LF
2020 Edison, South Amboy and
Metuchen
44,000 LF
Total 150,000 LF (28.4 miles)
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Renew History
Preliminary Engineering
Service Line Replacements
A total of 3969 services were replaced.
Hydrant Replacements
A total of 230 hydrants were replaced from Year
2016 to 2020 in Five (5) Municipalities
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RENEWThree Year Model
Year one will focus on
identifying the next ideal
location for the RENEW
Year One:
Planning
Year two will focus on
designing an appropriate
solution
Year Two: Design
Planning
PhaseDesign
Phase
Implementation
Phase
Year three will focus on the ideal
implementation and construction
of the RENEW Project
Year Three:
Implementation
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PLANNING PHASE
Year One
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Planning PhaseYear 1
1.1
Identify Potential Areas
1.2
Partner with Peer Utilities
1.3
Condition Assessment
1.4
Selection
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Identify Potential Areas
Preliminary Engineering
Factors that will contribute to the selection of
RENEW replacement assets:
○ Pipe Prioritization Model
○ Historical Main Break Data
○ Customer Complaints
○ Valve Inspection Results
1.1
Identify Potential Areas
1.2
Partner with Peer Utilities
1.3
Condition Assessment
1.4
Selection
o Unlined Cast Iron Pipe
o Age of Pipe
o Input from operations
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Pipe Prioritization Model
Preliminary Engineering
MWC utilizes a prioritization model as a tool in
the selection of assets for replacement. The
model ranks various criteria and leverages GIS
scripts to determine an asset’s overall risk
ranking.
○ Probability of Failure
○ Consequence of Failure
1.1
Identify Potential Areas
1.2
Partner with Peer Utilities
1.3
Condition Assessment
1.4
Selection
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Probability of Failure
Preliminary Engineering
Criteria include:
1.1
Identify Potential Areas
1.2
Partner with Peer Utilities
1.3
Condition Assessment
1.4
Selection
o Major Roadways
o Rail Crossings
o Past Break History
o Pipe Age/ Vintage
o Pipe Wrapping
o Pipe Class/ Material
o Bury Depth
o Soil Resistivity
o Pressure
o Slide Areas
o Number of Connections
o Lined/ Unlined
o Transients
o Pressure Fluctuations
o Proximity to Saltwater
o Groundwater
o Electrical Transmission Lines
o Known Manufacturing issues
o Joint Types
o Water Temperature Differential
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Consequence of Failure
Preliminary Engineering
Criteria include:
1.1
Identify Potential Areas
1.2
Partner with Peer Utilities
1.3
Condition Assessment
1.4
Selection
o Damage to Sensitive Areas
o Damage to Critical Roadways
o Damage to Railways
o Damage to Other Utilities
o Service Outage of Priority
Customers
o Service Outage- Number of
Customers
o Service Outage- Negative
Pressure
o Fire Flow Capacity
o Duration of Outage due to
Deep Pipes
o Flooding Potential
o Specialty Crossings
o Hydraulic Criticality
o Tank Feeds
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Normalized Risk Results
1.1
Identify Potential Areas
1.2
Partner with Peer Utilities
1.3
Condition Assessment
1.4
Selection
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Partnering with Peer Utilities
Preliminary Engineering
Middlesex Water Company will attempt to
secure a partner for the project, preferably a
peer utility:
○ Gas Company
○ Telecommunications Utility
○ Electric Company
○ Sanitary Sewer (Municipal)
○ Storm Sewer (Municipal)
1.1
Identify Potential Areas
1.2
Partner with Peer Utilities
1.3
Condition Assessment
1.4
Selection
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Partnering with Peer Utilities
Preliminary Engineering
Benefits of Partnering:
● Reduce customer disruption by having utility
construction take place once in a particular
area.
● Project restoration costs can be split among
utility companies.
1.1
Identify Potential Areas
1.2
Partner with Peer Utilities
1.3
Condition Assessment
1.4
Selection
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Condition Assessment
Preliminary Engineering
Performing Condition Assessments will allow the following:
o Tailor RENEW project to better match conditions of the main.
o Estimate likelihood that the main may continue to provide satisfactory service
o Help determine remaining service life of main
o Make better decisions regarding main renewal:
o Allow some water mains to remain in service longer
o Prevent some pipeline failures from occurring by intervening sooner
o Increase confidence in decisions (less chance of error)
1.1
Identify Potential Areas
1.2
Partner with Peer Utilities
1.3
Condition Assessment
1.4
Selection
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Condition Assessment
Preliminary Engineering
1.1
Identify Potential Areas
1.2
Partner with Peer Utilities
1.3
Condition Assessment
1.4
Selection
Identify loss of integrity
Identify loss of structural
competence or weakening of the
pipe (diminished wall thickness)
Find evidence of liner or coating
failure
Recognize other conditions of
concern, e.g., pipe is
unacceptably out of round.
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Condition Assessment
Preliminary Engineering
1.1
Identify Potential Areas
1.2
Partner with Peer Utilities
1.3
Condition Assessment
1.4
Selection
Material Testing
Internal NDT
External NDT
Survey Level Inspection
Desktop Study
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Condition Assessment
Preliminary Engineering
1.1
Identify Potential Areas
1.2
Partner with Peer Utilities
1.3
Condition Assessment
1.4
Selection
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Condition Assessment
Preliminary Engineering
1.1
Identify Potential Areas
1.2
Partner with Peer Utilities
1.3
Condition Assessment
1.4
Selection
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Selection
Preliminary Engineering
The Selection Phase of the Planning process will have the
following goals:
• Review condition assessment results and prepare
recommendation on specific assets to replace
• Coordinate with Peer Utilities on specific locations
• Award Design contract to a Consulting Engineer
1.1
Identify Potential Areas
1.2
Partner with Peer Utilities
1.3
Condition Assessment
1.4
Selection
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DESIGN PHASE
Year Two
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DESIGN PHASE
The Design Phase of RENEW contains three
components:
○ Design
○ External Authorizations
○ Procurement/ Bidding Design
External Authorizations
Procurement/ Bidding
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Design
Complete Design in 6 months
Surveying
Identify Soils Sampling Locations
(1 sample every 500CY of soil removed)
Prepare 50% Contract Plans
Identify Test Pits
Soils Testing (NJDEP Linear Construction
Program Compliance)
Valve Exercising
Prepare 100% Contract Plans
Take offs and Construction Cost
Estimate
Design
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Design
Standard Design Template
Contract Drawings Presentation
Total Linear Footage
of Main to be
Replaced By Street
Utility Conflicts
Identification Notes
Cloud each Utility
Conflict and Number
Identify Each Service
For Replacement by
Address, Tap # and Size
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Design Challenges
Old Townships – Buried Storm/Sewer Information
Gather All MWCs Existing Utility Information
Incorrect Gas Markups
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External Authorizations
External
Authorizations
External Authorizations contains the
following tasks
Coordination with the County/Township
– Paving Requirements, Construction
Restrictions, Fire Department
Coordination
County/Township Road Opening Permits
Loan Application
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Bidding/ Procurement
Bidding &
Procurement
The Bidding & Procurement phases
contain the following tasks
Bid the RENEW Construction Contract
Bid Evaluation
Recommendation
Construction Inspection Services
Award Contract for Construction
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IMPLEMENTATION PHASE
Year Three
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Implementation PhaseYear 3
The Implementation Phase of the RENEW Program will
focus on the effective construction and implementation
of the new assetts that were designed in the previous
stages of the project lifecycle.
CONSTRUCTION- MWC will handle the Construction
Administration and Inspection associated with the RENEW
project.
ACCEPTANCE- The acceptance component of the RENEW
Project will include completion reports, GIS Data Updates,
and updates to the pipe prioritization model.
Tailor RENEW to better
match the conditions of
the mains
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Implementation PhaseYear 3
3.1
Construction
Construction
Inspection
Final Restoration
3.2
Project Closeout / Asset Management
As-Built Drawings
GPS Deliverables
GIS Updates
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Construction
Construction
Construction contains the following tasks:
Construction begins
Construction of watermains, disinfect,
pressure test
Service Installations
Hydrant Installations – Pressure test
Backfill with DGA and remove soil
Class 52 pipe (all material provided by
MWC)
Temporary restoration
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Construction Inspection
Construction
One crew per Inspector
Four to Five Crew on site each
day
Compile Daily reports each
week and send weekly report
by Tuesday of following week
Bi-weekly Progress Meetings
Phase Deliverables to MWC –
50%, 100%
GPS – Submeter Accuracy
4
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Final Restoration
Construction
Typically occurs 3-6 months
after excavation activities are
completed
Includes final paving,
sidewalk, and curb restoration
4
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Project Closeout/ Asset Management
Construction
Daily Reports – Document any changes on site, field conditions,
and daily work completed. Reports to be appropriately filed
As-Builts
Service Cards
Hydrant Cards
Valve Cards
GPS Deliverable
GIS Updates
4
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Daily Reports
Construction4
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Service Cards
Construction4
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Hydrant Cards
Construction4
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Valve Cards
4
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GPS Deliverables
4
MWC collects GPS information on
newly installed hydrants and valves
This information is collected and later
inputted into the GIS system with real
world coordinates
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GIS Updates
4
GIS system is updated to reflect the
revised location of water mains,
hydrants, service lines, etc.
This is drafted into GIS, and then as
built records are attached to each asset
as applicable
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Examples of Excellence (From Design to Construction)
High Quality Standard Design Drawings
Timely Feedback from Stakeholders - Maintain Budgets and Schedule
Increase in Scope of Work by adding additional sections
Increased Record Keeping and Asset Management
Reduce Emergency Service Calls and Repairs
Maintenance of assets on time
Improved System Resiliency
All MWCs Stakeholders engaged and informed
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Lessons Learned…
Construction
Weekly Construction Updates to the Townships
Regular communication between GF/MWC/Contractor
Standard Protocol for damages and repairs during
construction
Document pre-existing road conditions
Sought feedback from entire project team after the
completion of the project
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Questions?