he Bureau of Reclamation (Reclamation), through the Anadromous Fish Screen Program(AFSP), proposes to provide federal funding to the South Sutter Water District (SSWD) to screen their existing unscreened 80 cubic feet per second (cfs) gravity diversion along Auburn Ravine, located approximately 5.4 miles west of the City of Lincoln, Placer County, California.The Proposed Action is a cooperative effort between the AFSP [co-managed by Reclamation and U.S. Fish and Wildlife Service (USFWS)], California Department of Fish and Wildlife (CDFW),Family Water Alliance (FWA) and SSWD. The Proposed Action consists of the installation o f two cone fish screens at the entrance of SSWD’s existing Pleasant Grove Canal (Canal) to improve fish passage in Auburn Ravine (Figure 1). Installation of the fish screens would help to prevent listed and other migratory or resident fish species in Auburn Ravine from being diverted into the Canal, which is used to provide irrigation water to SSWD customers.SSWD operates a flashboard dam and the Canal on Auburn Ravine for groundwater replenishment and agricultural purposes. The Canal diverts up to 80 cfs from the impounded water that is typically about three to four feet deep at the Canal’s entrance. There is no structure at the Canal’s entrance and all water flow and elevations are controlled at both the flashboard structure (Aitkin Ranch Dam) on Auburn Ravine and a check structure about 1,500 feet downstream of the Canal. The flashboard dam is generally installed in April of each year and removed by mid-October to coincide with the irrigation season. However, the flashboard dam is not installed during some dry water years such as in 2014. The dam installation and regulation is necessary for the Canal to operate.During the winter months when the dam is removed, the Canal invert is generally above the river surface elevation, except during high flow or flood events. The top of the Canal’s banks are located below the high flow or flood water elevations so access to the site in the winter is not always possible. During the irrigation season, flows and water depths in Auburn Ravine aregenerally regulated so the Canal water surface elevation is relatively constant.