Work on the Canal Modifications included raising the concrete canal lining and canal embankment along thirteen miles of canal. PrōVen removed over-chutes, demolished drop-inlets, constructed new over-chutes, and re-graded drop-inlets. We also made significant modifications to Patterson Reservoir, both increasing its capacity and rebuilding its basin.
| Location: | Alameda and Santa Clara Counties Livermore, California |
| Start Date: | November 2010 |
| Completion Date: | April 2013 |
| Contract Value: | $26,057,828 |
| Owner: | State of California Department of Water Resources Contract No. C51401 |
| Engineer: | Department of Water Resources State Water Facilities |