IMPLEMENTING AN ADAPTIVE CAPITAL IMPROVEMENT PROGRAM

Katy Weidner, Black & Veatch

NC AWWA-WEA 95TH ANNUAL CONFERENCE

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• Co-Authors• Courtney Driver, City of Winston Salem• Kevin Laptos, Black & Veatch• Kent Lackey, Black & Veatch

ACKNOWLEDGEMENTS

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• Adaptive Capital Planning• Winston-Salem’s Adaptive CIP

• Overview of the Master Plan• Goals for Developing the iCIP Tool• How the iCIP Tool Works

AGENDA

ADAPTIVE CAPITAL PLANNING

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5Planning for Growth alongside of Budgeting for Maintenance

• Focus on Asset Management & Optimization rather than Expansion

• Need for cost-effective assessments• Address worst condition assets first• Risk based prioritization

ADAPTIVE CAPITAL PLANNING

6Adaptive Capital planning

• Static CIP Report• Time and situation constrained• Not risk-based• Not adaptable

CIP PRIORITIZATION - OLD APPROACH

Traditional CIP

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• Growth Rates

• Asset Condition

• Outside Factors

FACTORS THAT CAN AFFECT PLANNING

WINSTON-SALEM’S WASTEWATER SYSTEM MASTER PLAN

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• 1,724 miles of sewer main

• 49 Pump Stations

• Two Treatment Plants• Muddy Creek

(21 MGD)• Elledge

(30 MGD)• Three Major

Sewer Basins

CITY/COUNTY UTILITIES COMMISSION – COLLECTION SYSTEM OVERVIEW

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WASTEWATER SYSTEM MASTER PLAN

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• Evaluate collection system capacity in three major basins• Prioritize Capacity improvements

30 year Master Plan (2011 – 2041)

• Future Treatment Alternatives Evaluation• Collection System Asset Evaluation

Wastewater System Evaluation

• Capacity Driven Projects• Condition Driven Projects

CIP Projects

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• Condition Driven Projects• Facility Inspections• Pipeline Prioritization

• Criticality Ratings based on consequence of failure

• Condition Scores evaluated based on available data, modeling results, and age of pipe

• Capacity Driven Projects• Flow Projections • Field Surveys and Flow

Monitoring• Hydraulic Model for Base

and future Years

DEVELOPING THE CIP PROJECTS

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ASS

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ASSET MANAGEMENT APPROACH TO SYSTEM PLANNING

Provides a comprehensive and coordinated Master Plan CIP

13We need to compare alternatives and update the 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?

…BUT HOW FINAL IS THE “FINAL” CIP?

ADAPTING THE CIP USING THE iCIP TOOL

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• 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

CUSTOMIZING iCIP FOR WINSTON-SALEM

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• 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)

ADAPTIVE APPROACH TO CIP PRIORITIZATION

• Integrate the CIP spreadsheet with the iCIP GIS Inventory

ADAPTIVE CIP

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• interactive Capital Improvement Planning • Built on top of ArcGIS (Esri Add-in) • Open architecture, Esri-based enhanced by B&V• Integrate CIP with existing GIS Inventory• Risk and Capacity Based Prioritization

iCIP - GIS

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ICIP

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HOW iCIP WORKS FOR WINSTON - SALEM

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20Project Summary Window

21Assets Window

22Project Details Window

iCIP Tools in excel

• Summarizes Scope and Performance Triggers• Calculates detailed Cost Opinions• Project Phasing, Cash Flow and Encumbrance

CIP EXCEL SPREADSHEET

24Hidden Cells contain the data used for cost estimates 24

25Linked to Detailed Costs for easy updating 25

Diameter Material Installation Material cost Total Unit cost MH

6 DIP (Force Main) 35 26 61 20008 EVCP 80 38 118 3000

10 EVCP 100 45 145 300012 EVCP 150 47 197 400015 EVCP 150 53 203 600016 EVCP 200 57 257 600018 EVCP 200 64 264 600021 EVCP 200 72 272 600024 EVCP 200 83 283 800027 Flowtite GRP SN46 250 125 375 800030 Flowtite GRP SN46 250 128 378 800036 Flowtite GRP SN46 250 155 405 1200042 Flowtite GRP SN46 250 176 426 1200048 Flowtite GRP SN46 300 198 498 1200054 Flowtite GRP SN46 300 224 524 1500060 Flowtite GRP SN46 300 257 557 1500066 Flowtite GRP SN46 300 286 586 1500072 Flowtite GRP SN46 300 323 623 15000

UNIT COST ASSUMPTIONS

Phasing is Based on the Start Year and Project Duration 2626

ADJUSTING CASH FLOW

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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

ADAPTIVE CIP

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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

IN CLOSING…

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ANY QUESTIONS?

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Thank you for attending this presentation!

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