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BUILDING A WORLD OF DIFFERENCE®
Madison Water UtilityInfrastructure Management Plan
February 17, 2009
MADISON WATER UTILITY – WATER MASTER PLAN • MADISON, WISCONSIN 2/9/09B&V - 2
BUILDING A WORLD OF DIFFERENCE®
Infrastructure Failure Can Have Serious Consequences !
MADISON WATER UTILITY – WATER MASTER PLAN • MADISON, WISCONSIN 2/9/09B&V - 3
BUILDING A WORLD OF DIFFERENCE®
Madison is not immune!
MADISON WATER UTILITY – WATER MASTER PLAN • MADISON, WISCONSIN 2/9/09B&V - 4
BUILDING A WORLD OF DIFFERENCE®
Aging InfrastructureLess Funding , Reduced Maintenance and Replacement BudgetsMore Public ScrutinyIncreased Focus on Management of Assets and Maintaining Levels of Service
Why an Infrastructure Management Plan?
MADISON WATER UTILITY – WATER MASTER PLAN • MADISON, WISCONSIN 2/9/09B&V - 5
BUILDING A WORLD OF DIFFERENCE®
Source: ASCE Web Site
ASCE Report Card Highlights Infrastructure Conditions
MADISON WATER UTILITY – WATER MASTER PLAN • MADISON, WISCONSIN 2/9/09B&V - 6
BUILDING A WORLD OF DIFFERENCE®
Water Pipe Replacement Needs Will Increase
Source: EPA Gap Analysis
MADISON WATER UTILITY – WATER MASTER PLAN • MADISON, WISCONSIN 2/9/09B&V - 7
BUILDING A WORLD OF DIFFERENCE®
What do we do?How do we effectively manage our assets? Are we maximizing the value of the assets we have?How do we predict failure?What is the life expectancy of our piping system?How do we minimize failure of a critical asset?Do we repair, rehabilitate or replace?
What do we budget for infrastructure reinvestment? How many $$$ are required?What are the consequences of not planning?
Questions
MADISON WATER UTILITY – WATER MASTER PLAN • MADISON, WISCONSIN 2/9/09B&V - 8
BUILDING A WORLD OF DIFFERENCE®
34 miles of mains 4-inch.18 miles of pipe more than 100 years old.Have to deal with other pipes leaking and in need of replacementCurrently replacing 4 to 6 miles per year. Assume 50% of replacement work is toward 4-inch pipe and >100 year old pipe. (52 miles)Takes 21 years to replace this pipe.During that time 95 miles of pipe has had its 100th
birthday
The No-plan Scenario
MADISON WATER UTILITY – WATER MASTER PLAN • MADISON, WISCONSIN 2/9/09B&V - 9
BUILDING A WORLD OF DIFFERENCE®
1) Be proactive not reactive.2) Make the most economical use of available
resources.3) Coordinate with other City Departments.4) Maintain the current level of service to
customers.
Objectives of Infrastructure Management Plan
MADISON WATER UTILITY – WATER MASTER PLAN • MADISON, WISCONSIN 2/9/09B&V - 10
BUILDING A WORLD OF DIFFERENCE®
Principal Elements of the Infrastructure Management Plan
Facilities AssessmentInspectionsCondition and Valuation Databases
Pipeline AssessmentMain Break History and TrendsSurvivability Curves
Long-term Annual Funding Levels10-year Prioritized Improvements Program
MADISON WATER UTILITY – WATER MASTER PLAN • MADISON, WISCONSIN 2/9/09B&V - 11
BUILDING A WORLD OF DIFFERENCE®
Existing System
23 Deep Wells8 InterzoneBooster Stations8 Distribution Storage Facilities850 Miles of Pipe
MADISON WATER UTILITY – WATER MASTER PLAN • MADISON, WISCONSIN 2/9/09B&V - 12
BUILDING A WORLD OF DIFFERENCE®
Pumping Station Component Weighting
Component weights are based on evaluation of typical component cComponent weights are based on evaluation of typical component cost for standard pumping station.ost for standard pumping station.
100Total
5Security – Locks, Site Lighting, Surveillance Devices, Fencing8
5Instrumentation – Flow/Pressure/Temperature Instruments SCADA – RTU, CPU, Transmitter/modem
7
25Electrical – MCC, Standby Power, General Interior6
20Pumps and Motors5
5Mechanical – HVAC4
20Mechanical – Piping, Valves, Meters3
10Structure – Walls, Roof, Foundation2
10Site – Drainage, Access Drive, Landscaping1
WeightComponent
MADISON WATER UTILITY – WATER MASTER PLAN • MADISON, WISCONSIN 2/9/09B&V - 13
BUILDING A WORLD OF DIFFERENCE®
Condition Rating
Needs Immediate Replacement. Failure is imminent.5
Operable, but shows signs of aging greater than expected. Has high occurrence of maintenance requirements.
4
In working order and shows signs of aging consistent with actual age of component. Improvements needed in near future to maintain working order.
3
Well maintained and appears to be in better condition than actual age would indicate. No improvements needed in near future to maintain working order.
2
New condition. Meets or exceeds standard. 1Definition
Condition Rating
Condition Rating – Pumping and Storage Facilities
MADISON WATER UTILITY – WATER MASTER PLAN • MADISON, WISCONSIN 2/9/09B&V - 14
BUILDING A WORLD OF DIFFERENCE®
Facility Reinvestment Needs
$0
$500,000
$1,000,000
$1,500,000
$2,000,000
$2,500,000
2015 to 2025 2025 to 2035 2035 to 2045 2045 to 2055 After 2055
Period
Ann
ual R
einv
estm
ent N
eed
Capital costs in 2005 dollars and not adjusted for inflation.
Current Reinvestment in Facilities
MADISON WATER UTILITY – WATER MASTER PLAN • MADISON, WISCONSIN 2/9/09B&V - 15
BUILDING A WORLD OF DIFFERENCE®
Common Identified Facility Needs
Facilities in General are in Good Condition, Well Maintained. Chemical Feed Housing Locations Not Consistent with Today’s Code.Some Vent / Overflow Concerns Reservoir Interiors Condition Varied
MADISON WATER UTILITY – WATER MASTER PLAN • MADISON, WISCONSIN 2/9/09B&V - 16
BUILDING A WORLD OF DIFFERENCE®
Prioritized Facility Improvements
Perform High Priority Facility Improvements Replace Booster Station 106Repair Reservoir 106Perform Well borehole rehabilitation at 13, 17, and 24.Repair Pumping Station 12Repair Reservoir 7Repaint Elevated Tanks 120, 126, and 315.
MADISON WATER UTILITY – WATER MASTER PLAN • MADISON, WISCONSIN 2/9/09B&V - 17
BUILDING A WORLD OF DIFFERENCE®
Length of Pipe by Material and Year
0
5
10
15
20
25
30
35
1882
1892
1902
1912
1922
1932
1942
1952
1962
1972
1982
1992
2002
Year of Installation
Leng
th (m
iles)
Unlined Sand Cast IronUnlined Spin Cast IronLined Spin Cast IronLined Dutile IronLined and Wrapped Ductile IronPVC
MADISON WATER UTILITY – WATER MASTER PLAN • MADISON, WISCONSIN 2/9/09B&V - 18
BUILDING A WORLD OF DIFFERENCE®
Break Trends Analysis
107 141 192
52
308
9
618
1,217
2,388
148 16443
0
500
1,000
1,500
2,000
2,500
3,000
Sand Cast Spin CastUnlined
(Spin) CastLined
Ductile DuctileBagged
PVC0.000
0.100
0.200
0.300
0.400
0.500
0.600
Bre
ak R
ate
(Bre
aks
per M
ile p
er Y
ear)
Length by Material -Miles
Number of Breaks -1980 to 2003
Break Rate
0
50
100
150
200
250
300
350
400
1.5 2 3 4 6 8 10 12 14 16 20 24
Diameter (inches)
Leng
th (m
iles)
PVCCopperDuctile Iron (bagged)Ductile IronSpin Cast (Lined)Spin Cast (Unlined)Sand Cast (Unlined)Break Rate by Diameter
MADISON WATER UTILITY – WATER MASTER PLAN • MADISON, WISCONSIN 2/9/09B&V - 19
BUILDING A WORLD OF DIFFERENCE®
Survival Curves
0
0.1
0.2
0.3
0.4
0.5
0.6
0.7
0.8
0.9
1
0 50 100 150 200
Pipe Age, years
Surv
ival
Per
cent
age
Bin 3Bin 2Bin 1
MADISON WATER UTILITY – WATER MASTER PLAN • MADISON, WISCONSIN 2/9/09B&V - 20
BUILDING A WORLD OF DIFFERENCE®
Pipeline Reinvestment Needs
0.0
1.0
2.0
3.0
4.0
5.0
6.0
7.0
8.0
9.0
0 10 20 30 40 50 60 70
Year From Current
Cap
ital C
ost (
Mill
ion
$)
Reinvestment Need
Capital costs in 2005 dollars and not adjusted for inflation.
MADISON WATER UTILITY – WATER MASTER PLAN • MADISON, WISCONSIN 2/9/09B&V - 21
BUILDING A WORLD OF DIFFERENCE®
0
50
100
150
200
250
300
2005
2010
2015
2020
2025
2030
2035
2040
2045
2050
2055
Year
Pipe
line
Rei
nves
tmen
t (M
illio
n $)
Reinvestment NeedCIP BudgetCummulative Shortfall
Pipeline Reinvestment Shortfall
0
10
20
30
40
2005
2010
2015
2020
2025
2030
2035
2040
2045
2050
2055
Year
Pipe
line
Rei
nves
tmen
t (M
illio
n $)
Reinvestment NeedCIP BudgetCummulative Shortfall
Current Reinvestment
Proposed Reinvestment
It is the goal of the Utility to regularly increase the annual reinvestment spending to catch up with needs. It will take many years to achieve this goal due to limitations in rate increases and the Utility’s bonding capacity.
MADISON WATER UTILITY – WATER MASTER PLAN • MADISON, WISCONSIN 2/9/09B&V - 22
BUILDING A WORLD OF DIFFERENCE®
Prioritized Pipeline Improvements
1Not usedMarshyDefaultSoil Type
1Hospitals, Stadiums, Airport, State Capital Building, University of Wisconsin Co-generation Plant
Colleges and SchoolsDefaultNoteworthy Locations
2Limited Access Federal Highways, single supply lines, and others as directed by City
Not-limited Access Federal and State Highways
DefaultCritical Pipelines
210” and larger4” and smaller8” and smallerDiameter
3Roadway Reconstruction Project
Roadway Resurfacing, Storm Water or Sanitary Sewer Project
DefaultCoordination With Public Works
3Highest 1/3Middle 1/3Lowest 1/3Break Rates
37 or more3 to 62 to 3Number of Breaks
321 Weight
Impact Score
Criteria
Pipeline Criteria Scoring
MADISON WATER UTILITY – WATER MASTER PLAN • MADISON, WISCONSIN 2/9/09B&V - 23
BUILDING A WORLD OF DIFFERENCE®
Recommendations
Increase annual budget to build up to $2 million per year facility reinvestment by year 2025Implement corrective measures for overflow pipes and chemical rooms ($2.6 million in addition to annual reinvestment for facilities)Increase annual budget to build up to $9 million per year for pipeline replacement by year 2024These costs are year 2005 basis and should be increased annually to account for inflation
MADISON WATER UTILITY – WATER MASTER PLAN • MADISON, WISCONSIN 2/9/09B&V - 24
BUILDING A WORLD OF DIFFERENCE®
Miscellaneous Recommendations
Maintenance RecommendationsAdditional Data Collection ProtocolsEvaluate Pressure vs. Main BreaksConduct Water AuditComputerized Maintenance Management System