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“to restore and maintain the Trinity River’s anadromous fishery resources”
- U.S. Department of Interior, Record of Decision, 2000


  • NEW SEPT. 16, 2014! Reclamation is making an emergency release from Lewiston Dam of 3400 cfs with the purpose of doubling flows in the Lower Klamath River to abate poor fish health conditions. The increased flows are expected to continue for several days. Please go to for more information on fish health monitoring in the Klamath River.
    • You may subscribe to Automated Flow Release Notifications (click here).

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Current Info!

Trinity River
Real-Time Flows
Hover with mouse for details.
Click with mouse goes to NWIS page.
cubic feet per second (cfs)
The table above contains provisional data provided by the USGS via the waterservices site. All data are provisional and may be recalculated before final approval. This table may take several seconds to load.

* = value 2+ hours old
** = 4 or more hours

Problems with this table may be reported to the TRRP Data Steward.
  • Wood in side channel constructed prior year (2007) providing habitat for young salmon
  • Habitat structure for young salmon at Sawmill (Lewiston), constructed in 2010
  • New bar formed at Lowden Ranch by injecting gravel into the river during the 2010 peak restoration flow release
  • First high flow since construction at the Sawmill (Lewiston) site
  • Hoadley Gulch Side Channel just after construction - this side channel was a popular spawning site in 2009 and 2010
  • Restoration high flow, spring 2010 - these high flows are designed to help the river restore itself
including reforming banks created by dredge mining and fixed in place by vegetation that grew when
the dam releases remained low year round
  • Sven Olbertson Side Channel, constructed in 2008 - this has become a popular area for spawning
  • New construction of bars and meanders at the Reading Creek restoration site (2010)
  • New bar forming at head of Indian Creek side channel (constructed 2007)
  • Newly constructed meanders at the Lowden Ranch restoration site (2010) - designed to increase channel complexity and encourage a variety of salmon habitats