NC AWWA-WEA 95TH ANNUAL CONFERENCE
IMPLEMENTING AN ADAPTIVE CAPITAL
IMPROVEMENT PROGRAM
Katy Weidner, Black & Veatch
ACKNOWLEDGEMENTS
• Co-Authors
• Courtney Driver, City of Winston Salem
• Kevin Laptos, Black & Veatch
• Kent Lackey, Black & Veatch
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AGENDA
• Adaptive Capital Planning
• Winston-Salem’s Adaptive CIP
• Overview of the Master Plan
• Goals for Developing the iCIP Tool
• How the iCIP Tool Works
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ADAPTIVE CAPITAL PLANNING
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ADAPTIVE CAPITAL PLANNING
• Focus on Asset Management & Optimization rather
than Expansion
• Need for cost-effective assessments
• Address worst condition assets first
• Risk based prioritization
Planning for Growth alongside of Budgeting for Maintenance
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CIP PRIORITIZATION - OLD APPROACH
Traditional CIP
• Static CIP Report
• Time and situation constrained
• Not risk-based
• Not adaptable
Adaptive Capital planning
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FACTORS THAT CAN AFFECT PLANNING
•Growth Rates
•Asset Condition
•Outside Factors
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WINSTON-SALEM’S
WASTEWATER SYSTEM
MASTER PLAN
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CITY/COUNTY UTILITIES COMMISSION –
COLLECTION SYSTEM OVERVIEW
• 1,724 miles of
sewer main
• 49 Pump
Stations
• Two Treatment
Plants
• Muddy Creek
(21 MGD)
• Elledge
(30 MGD)
• Three Major
Sewer Basins
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WASTEWATER SYSTEM MASTER PLAN
30 year Master Plan (2011 – 2041)
• Evaluate collection system capacity in three major basins
• Prioritize Capacity improvements
Wastewater System Evaluation
• Future Treatment Alternatives Evaluation
• Collection System Asset Evaluation
CIP Projects
• Capacity Driven Projects
• Condition Driven Projects
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DEVELOPING THE CIP PROJECTS
• Capacity Driven Projects • Condition Driven Projects
• Flow Projections
• Facility Inspections
• Field Surveys and Flow
Monitoring
• Pipeline Prioritization
• Hydraulic Model for Base
and future Years
• Criticality Ratings based
on consequence of
failure
• Condition Scores
evaluated based on
available data, modeling
results, and age of pipe
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ASSET MANAGEMENT
ASSET MANAGEMENT APPROACH TO
SYSTEM PLANNING
Provides a comprehensive and coordinated Master
Plan CIP
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…BUT HOW FINAL IS THE “FINAL” CIP?
• What if…
• A routine pipeline inspection reveals a pipe failure at
the location of a future capacity project?
• OR
• A 2020 DOT project includes tearing up and repaving
the road at a sewer crossing in the 2030 CIP. Does it
make sense to move forward the project? All of the
project or maybe just the road crossing?
We need to compare alternatives and update the CIP!
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ADAPTING THE CIP
USING THE iCIP TOOL
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CUSTOMIZING iCIP FOR WINSTON-SALEM
• Evaluating Current Needs
• Critical Capacity Driven Projects
• Long-Term and Short-Term Budgeting Tools
• Increased functionality for Cost Estimating, Project
Scheduling, and Cash Flow and Spend Plans
• Data Collection Plan
• Evaluating Future Needs
• Asset Condition Database
• Prioritize Inspection and R&R budgets
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ADAPTIVE APPROACH TO CIP PRIORITIZATION
• Three Components
• Asset Prioritization –
Leverage GIS Inventory and
updated condition data to
prioritize projects (GIS)
• Asset Costing – Dynamic
update costs based on
project changes to scope
and schedule (Excel)
• CIP project identification
(iCIP)
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ADAPTIVE
CIP
• Integrate the CIP
spreadsheet with the
iCIP GIS Inventory
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iCIP - GIS
• interactive Capital Improvement Planning
• Built on top of ArcGIS (Esri Add-in)
• Open architecture, Esri-based enhanced by B&V
ICIP COST ESTIMATING TOOL
• Integrate CIP with existing GIS Inventory
• Risk and Capacity Based Prioritization
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HOW iCIP WORKS FOR
WINSTON - SALEM
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Project Summary Window
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Assets Window
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Project Details Window
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CIP EXCEL SPREADSHEET
• Summarizes Scope and Performance Triggers
• Calculates detailed Cost Opinions
• Project Phasing, Cash Flow and Encumbrance
iCIP Tools in excel
Hidden Cells contain the data used for cost estimates
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UNIT COST ASSUMPTIONS
Diameter
Material
6
8
10
12
15
16
18
21
24
27
30
36
42
48
54
60
66
72
DIP (Force Main)
EVCP
EVCP
EVCP
EVCP
EVCP
EVCP
EVCP
EVCP
Flowtite GRP SN46
Flowtite GRP SN46
Flowtite GRP SN46
Flowtite GRP SN46
Flowtite GRP SN46
Flowtite GRP SN46
Flowtite GRP SN46
Flowtite GRP SN46
Flowtite GRP SN46
Installation Material cost
35
80
100
150
150
200
200
200
200
250
250
250
250
300
300
300
300
300
Total Unit
cost
MH
61
118
145
197
203
257
264
272
283
375
378
405
426
498
524
557
586
623
2000
3000
3000
4000
6000
6000
6000
6000
8000
8000
8000
12000
12000
12000
15000
15000
15000
15000
26
38
45
47
53
57
64
72
83
125
128
155
176
198
224
257
286
323
Linked to Detailed Costs for easy updating
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Phasing is Based on the Start Year and Project Duration
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ADJUSTING CASH FLOW
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ADAPTIVE CIP
An Adaptive CIP can…
• Leverage risk-based prioritization and/or capacity
assessments
• Immediately see results of decisions graphically
• Easily integrate with existing and updated GIS asset
inventory
• Provide tools to adapt to changing budgets, asset
conditions and priorities
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IN CLOSING…
An Adaptive CIP can respond to…
• Growth – Whether a recession slows growth or a
housing boom in an unforeseen area accelerates
growth, CIP projects can “slide” to when they are
needed.
• Condition – Prioritization scores can be continually
updated and used to allocate resources efficiently
• Outside Factors – Updates can be made to take
advantage of developer projects, transportation
projects, etc
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ANY QUESTIONS?
Thank you for attending this presentation!
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