Napa River Restoration Project: Oakville to Oak Knoll Reach, Group C Site 14
This project will continue implementing high priority sediment reduction measures along the Napa River to reduce fine sediment sources at Site 14 of the Oakville to Oak Knoll (OVOK) reach. The purpose of the OVOK Restoration Project is to restore and enhance long-term river and floodplain function, improve the quality and resilience of aquatic and terrestrial riparian habitat, and reduce property damage and sediment delivery associated with ongoing bank erosion processes. The project will include restoration actions on 2 properties including widening the channel, enhancing the floodplain, reducing channel bank erosion, and improving aquatic habitat through a joint public-private partnership. Project benefits include restoring 5 acres of riparian habitat, creating a 750 linear foot high flow swale and backwater alcoves, and addressing 1500 linear feet of actively eroding stream banks using biotechnical methods.
Project Facts
Recipient: Napa County
Funding: $894,324 (non-federal match = $894,324)
Project Period: January 2015 – December 2018
Partners: Landowners, Napa County Resource Conservation District, California Land Stewardship Institute
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OUTPUTS (Activities, efforts, and/or work product during project period) |
OUTCOMES (Environmental results) |
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SHORT-TERM |
LONG-TERM |
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Construct 2 floodplain benches and 0.9 acres of alcove features Install up to 38 instream habitat structures along 2,000 feet of channel As built drawings of construction per 100% Design & Specifications for restoration on 1-2 properties Complete protocols and data management systems for Bank Erosion and Rural Road Condition rapid assessment methodology (RAM) tools, including detailed user manuals, web based data management platforms and training modules to facilitate implementation Pending construction bids, available funding may also support:Construction of .3 acres of floodplain benches and installation of up to 2 instream habitat structures along 3,000 feet of channel |
~1,395 feet of eroding stream banks stabilized and up to 5.2 acres of riparian habitat created Fine sediment delivery reduced by 34,900 yd.³ or 2871 metric tons/year ~1 mile of the Napa River restored ~350 feet of eroding stream banks stabilized; fine sediment delivery reduced by ~22,500 yd.³; and up to 5.3 acres of riparian and wetland habitat created (pending construction bids) |
Increase habitat complexity, connectivity, and function of 5.2-10.5 acres along the Napa River Restore 9 miles of the Napa River OVOK Reach Reduce human sources of sediment to the Napa River by 51% by 2029 (Goal: 185,000 metric tons /year) |
Full List of Project Summaries