Reducing flood risk along the Russian River is the U.S. Army Corps of Engineers primary mission when retaining and releasing water in Flood Control pools at Lake Sonoma and Lake Mendocino.

Lake Sonoma topped out at 285,417 ac. ft. since Monday.  The Top of the Flood Control pool is 381,000 ac. ft.  Water releases with week varied from 105 
(cfs) to 3082 (cfs) as water flowing into the reservoir fluctuated from 266 to 5,661 (cfs) according to the Corps’ Water Management website.  Water releases were necessary to reduce the possible flooding downstream of Warm Springs Dam.  Currently, according to state water resource data, Lake Sonoma’s water level is at 276,073 ac. ft. with 1,322 (cfs) of water flowing into the reservoir and 3,052 (cfs)  of water being released as of midnight March 18.
Warm Springs Dam, Lake Sonoma
Reducing flood risk along the Russian River is the U.S. Army Corps of Engineers primary mission when retaining and releasing water in Flood Control pools at Lake Sonoma and Lake Mendocino. Lake Sonoma topped out at 285,417 ac. ft. since Monday. The Top of the Flood Control pool is 381,000 ac. ft. Water releases with week varied from 105 (cfs) to 3082 (cfs) as water flowing into the reservoir fluctuated from 266 to 5,661 (cfs) according to the Corps’ Water Management website. Water releases were necessary to reduce the possible flooding downstream of Warm Springs Dam. Currently, according to state water resource data, Lake Sonoma’s water level is at 276,073 ac. ft. with 1,322 (cfs) of water flowing into the reservoir and 3,052 (cfs) of water being released as of midnight March 18.
Reducing flood risk along the Russian River is the U.S. Army Corps of Engineers primary mission when retaining and releasing water in Flood Control pools at Lake Sonoma and Lake Mendocino.

Lake Mendocino topped 95,000 acre feet since Monday (March 14) requiring South Boat Ramp closure.  Top of the Flood Control pool is 122,400 ac. ft.  Water releases this week varied from 157 cubic feet per second to 1640 (cfs).  Water flowing into the reservoir fluctuated from 67 (cfs) to more than 4,000 (cfs) according to the U.S. Army Corps of Engineers Water Management website.  Water releases were necessary to reduce the possible flooding downstream of Coyote Valley Dam.  Currently, according to state water resource data, Lake Mendocino is storing 87,297 ac. ft. of water with 762 (cfs) of water flowing into the reservoir and 980 (cfs) of water being released as of midnight, March 18, 2016.
Coyote Valley Dam, Lake Mendocino
Reducing flood risk along the Russian River is the U.S. Army Corps of Engineers primary mission when retaining and releasing water in Flood Control pools at Lake Sonoma and Lake Mendocino. Lake Mendocino topped 95,000 acre feet since Monday (March 14) requiring South Boat Ramp closure. Top of the Flood Control pool is 122,400 ac. ft. Water releases this week varied from 157 cubic feet per second to 1640 (cfs). Water flowing into the reservoir fluctuated from 67 (cfs) to more than 4,000 (cfs) according to the U.S. Army Corps of Engineers Water Management website. Water releases were necessary to reduce the possible flooding downstream of Coyote Valley Dam. Currently, according to state water resource data, Lake Mendocino is storing 87,297 ac. ft. of water with 762 (cfs) of water flowing into the reservoir and 980 (cfs) of water being released as of midnight, March 18, 2016.
A levee at Sears Point in Sonoma County, Calif., is breached as part of a project to restore wetlands and protect the San Francisco Bay Area against anticipated sea level rise. The largest private environmental project in the Bay Area was authorized by the U.S. Army Corps of Engineers San Francisco District under terms of the Clean Water Act.
Sears Point Wetland Restoration Project
A levee at Sears Point in Sonoma County, Calif., is breached as part of a project to restore wetlands and protect the San Francisco Bay Area against anticipated sea level rise. The largest private environmental project in the Bay Area was authorized by the U.S. Army Corps of Engineers San Francisco District under terms of the Clean Water Act.
Toy on Dillard
South Pacific Division Commander Brig. Gen. Mark Toy Visits the San Francisco District
South Pacific Division Commander Brig. Gen. Mark Toy watches as the crew of the all purpose vessel The Dillard removes debris from Richmond Harbor in the San Francisco Bay. It was one of several Corps projects he visited during his July tour of the district.
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Army Corps accelerates wetland creation at Hamilton
The U.S. Army Corps of Engineers San Francisco District, along with the California State Coastal Conservancy, its non-federal sponsor, is constructing a 988-acre wetland restoration project in Novato, Calif., at what was once the former Hamilton Army Airfield. The project allows for the beneficial use of 24.4 million cubic yards of dredged material, including 3.5 million cubic yards from the Port of Oakland 50' Deepening Project.
Securing the Region's Future Through Water
Securing the Region's Future Through Water
Sometimes people ask what the US Army Corps of Engineers San Francisco District does? We manage the region's water resources. Watch this video and see how the Corps of Engineers impacts your life!

Latest Stories

Bay Area environmental restoration project reaches a milestone

SAN FRANCISCO - The largest private environmental restoration project in the Bay Area -- authorized by the U.S. Army Corps of Engineers two years ago – reached a major milestone this week with the breaching of a levee that will allow the San Francisco Bay to expand northward, restoring marshland and wildlife while also providing protection against sea-level rise.
Published: 10/27/2015

Army Corps of Engineers prepares for strong El Nino in Bay Area

SAN FRANCISCO – From gauging water levels behind dams, insuring the durability of levees, to working with local communities, the U.S. Army Corps of Engineers in San Francisco has embarked on an extensive effort to prepare the Bay Area and its network of waterways, wetlands and reservoirs for the arrival of an El Nino weather pattern which forecasters warn could bring prolonged periods of heavy rain, mudslides and flooding to a region more accustomed to years of drought.
Published: 10/23/2015

In California, Army Corps of Engineers pledges on-going help for wildfire victims

SAN FRANCISCO - With thousands of people forced from their homes by wildfires in three Northern California counties, the U.S. Army Corps of Engineers has pledged to continue to provide available space to accommodate evacuees at two Corps-operated campgrounds in the area free of charge, officials said.
Published: 10/22/2015

Army Corps of Engineers weighing options for protecting vital Bay Area infastructure from sea level rise

SAN FRANCISCO –Predicted rises in sea levels triggered by climate change threaten millions of people and could inflict billions of dollars in property losses and economic damage, particularly in the Bay Area where the U.S. Army Corps of Engineers is considering options for protecting densely populated areas of the coastline including critical infrastructure such as the region’s major airport and much of Silicon valley.
Published: 10/9/2015

Army Corps of Engineers presents plan to reduce threat of flooding triggered by climate change along San Francisco Bay

WASHINGTON -- In what amounts to the largest estuary restoration project in the Western United States, leaders of the U.S. Army Corps of Engineers’ San Francisco District have proposed a nearly $175 million plan to help protect the heart of Silicon Valley from catastrophic flooding. It’s a region that is home not only to the giants of the technology industry but some of the nation’s most expensive residential real estate now at significant risk of flooding because of climate change and predicted sea level rise.
Published: 9/16/2015

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Latest News Releases

Selfless Service

By J.D. HardestySan Francisco District Not all military awards for bravery are earned in combat.  On
Published: 9/12/2014

U.S. Army Corps of Engineers San Francisco District inspects Coyote Valley and Warm Springs Dams after Napa earthquake

SAN FRANCISCO –  U.S. Army Corps of Engineers-owned dams and ongoing Corps construction projects in
Published: 8/25/2014

Corps lifts suspension of Caltrans’ Willits Bypass permit

SAN FRANCISCO  –  The U.S. Army Corps of Engineers San Francisco District announced today that the
Published: 7/10/2014