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San Francisco Bay Delta

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

Environmental Results Summary: Napa River Restoration Project: Oakville to Oak Knoll Reach, Group C Site 14

OUTPUTS (Activities, efforts, and/or work product during project period)

OUTCOMES (Environmental results)

(1-5 yrs)


Construct a 750-linear foot high-flows swale to enhance backwater habitats

Apply biotechnical bank stabilization along 1500 linear feet of river bank

Widen the river channel by 65 – 90 feet by removing 103,000 yd.³ of sediment from eroding banks

As built drawings of construction per 100 percent Design & Specifications for restoration on two properties

1500' of eroding stream banks stabilized and 5 acres of riparian habitat enhanced

Fine sediment delivery reduced by 2476 metric tons/year

Increase habitat complexity, connectivity, and function of 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