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Budget Year / Version:  
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Description

The purpose of this program is to plan, design and rehabilitate or replace Large Diameter Water Transmission Mains that have reached the end of their useful life. Condition Assessment and or corrosion monitoring is performed on metallic pipelines, including ductile iron, cast-iron and steel, to identify areas requiring replacement or rehabilitation. The PCCP Inspection and Condition Assessment Program identifies individual pipe sections that require repair or replacement for maintenance purposes to assure the continued safe and reliable operation of the pipeline. The program also identifies mains that require the replacement of an increased number of pipe sections in varying stages of deterioration that are most cost effectively accomplished by the replacement or rehabilitation of long segments of the pipeline for the entire pipeline. Rehabilitation or replacement of these mains provides value to the customer by minimizing the risk of catastrophic failure and ensuring a safe and reliable water supply. The Program includes installation of Acoustic Fiber Topic Monitoring equipment in order to accomplish these goals. *Expenditures for Large Diameter Pipe Rehabilitation Are Expected to Continue Indefinitely.
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Phase

Planning Stage

Status

Active
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Budget Snapshot
$433.06M Total
Expenditures/Funding
$392.8M 6 Year Total
Expenditures/Funding
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Justification

Utility Wide Master Plan, (December 2007); 30 Year Infrastructure Plan (2007). Specific Date: WSSC has approximately 960 miles of larger diameter water main ranging from 16-inch to 96-inch diameter. This includes 350 miles of cast-iron, 225 miles of ductile iron, 35 miles of steel and 350 miles of PCCP. Of the 350 miles of PCCP, 150 miles are 36-inch and larger, and 55 miles or greater than 54-inch or larger. The inspection program includes internal visual and sounding, sonic/ultrasonic and electromagnetic testing to establish the condition of each pipe section and determine if maintenance repair, rehabilitation, or replacement are needed.
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Other

The project scope was developed for the FY 2011 CIP and has a total project cost of $60,000.00. Expenditures are schedule projections shown in Block B above are Order of Magnitude estimates and are expected to change based upon the results of the inspections and condition assessments. Additional costs associated with inspection/monitoring and emergency repairs are included in the operating budget.
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Budget Snapshot
$433.06M Total
Expenditures/Funding
$392.8M 6 Year Total
Expenditures/Funding
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Project Details
Project NumberP113803
Date Last Modified08/06/18
Administering AgencyW.S.S.C.
CategoryWSSC
SubCategoryWater Bi-County
Planning AreaCountywide
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Total Expenditures by Cost Element (000s)
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Total Funding by Source (000s)
EXPENDITURES (000s)
Cost ElementsTotalThru FY18Est FY19Total 6 YearsFY 20FY 21FY 22FY 23FY 24FY 25Beyond 6 Years
Planning, Design and Supervision4487106690381815861617063556404659767940
Land00000000000
Site Improvements and Utilities00000000000
Construction3675640316533359113260149494547496421466430684230
Other2062101917187041923278330553531365137610
Total Expenditures4330560402603927964038558447641597414976678789780
FUNDING (000s)
Funding SourceTotalThru FY18Est FY19Total 6 YearsFY 20FY 21FY 22FY 23FY 24FY 25Beyond 6 Years
WSSC Bonds4330560402603927964038558447641597414976678789780
Total Funding Sources4330560402603927964038558447641597414976678789780
APPROPRIATION AND EXPENDITURE DATA ($000s)
Appropriation FY 19 Request53622
Year First AppropriationFY11
Appropriation FY 20 Request40385
Last FY's Cost Estimate435594
Cumulative Appropriation269450
Expenditure / Encumbrances0
Unencumbered Balance269450