PrōVen replaced the water piping and the mechanical supports at the O’Shaughnessy Dam; and installed new conduits, wiring, switches, and junction boxes as necessary to comply with National Electric Code. PrōVen also installed all new hydraulic systems for the gate valves operating flow for the entire dam. Panel boards and miscellaneous electrical items as well as pumps and motors were replaced by PrōVen.
| Location: | Tuolumne County |
| Start Date: | June 2001 |
| Completion Date: | November 2001 |
| Contract Value: | $729,867 |
| Owner: | City and County of San Francisco Utilities Engineering Bureau Contract No. HH-885R |