To overcome the challenges of an aging water distribution
system in meeting the City's water service level goals, Wilmington Department of Public
Works (DPW) has started an integrated multi-year program for replacing and rehabilitating the
water distribution network. The distribution network improvement program uses a multi-objective
project investment optimization model based on data from water main condition
assessment, hydraulic performance analysis, and valve exercising and fire hydrant testing
projects. Geospatial Information System (GIS) based data models of water main breaks and
water quality complaints, combined with hydraulic performance simulation models are being
used in the selection and prioritization of asset renewal projects.
Five years into the program, the City has successfully transitioned to a GIS based water asset
information system. The first phase of the program, which included projects for valve
rehabilitation and replacement, and water main cleaning and lining have been completed.
The program has enabled the City to achieve its water service level goals while renewing the
distribution network to ensure long-term sustainability of the service levels. Includes figure.
| Edition : | Vol. - No. |
| File Size : | 1
file
, 4.5 MB |
| Note : | This product is unavailable in Ukraine, Russia, Belarus |
| Number of Pages : | 40 |
| Published : | 11/01/2008 |
