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.