Putah Creek

Putah Creek
Putah Creek above Monticello Dam
Location of the mouth of Putah Creek in California
Native nameLiwaito (Patwin)
Location
CountryUnited States
StateCalifornia
CountiesYolo, Solano, Napa, Lake
Physical characteristics
SourceCobb Mountain
  coordinates38°48′26″N 122°43′21″W / 38.80722°N 122.72250°W / 38.80722; -122.72250
  elevation3,651 ft (1,113 m)
MouthYolo Bypass
  location
Prospect Slough in Yolo Bypass
  coordinates
38°30′56″N 121°35′20″W / 38.51556°N 121.58889°W / 38.51556; -121.58889
  elevation
7.5 ft (2.3 m)
Length85 mi (137 km)
Basin size638 sq mi (1,650 km2)
Discharge 
  locationnear Winters, CA
  average477 cu ft/s (13.5 m3/s)
  minimum0 cu ft/s (0 m3/s)
  maximum81,000 cu ft/s (2,300 m3/s)

Putah Creek (Patwin: Liwaito) is a major stream in Northern California, a tributary of the Yolo Bypass, and ultimately, the Sacramento River. The 85-mile-long (137 km) creek has its headwaters in the Mayacamas Mountains, a part of the Coast Range, and flows east through two dams. First, Monticello Dam forms Lake Berryessa, below which Putah Creek forms the border of Yolo and Solano Counties, and then flows to the Putah Diversion Dam and Lake Solano. After several drought years in the late 1980s, the majority of Putah Creek went dry, prompting a landmark lawsuit that resulted in the signing of the Putah Creek Accord in 2000. The Accord established releases from the dams to maintain stream flows in Putah Creek, with natural flow regimes which spike in winter/spring and ebb in summer/fall. The restoration of natural flow regimes has resulted in a doubling of riparian bird species and a return of spawning native steelhead trout and Chinook salmon, as well as protecting the livelihood of farmers on the lower watershed.