Trinity River Flow to Temporarially Increase
Press release provided by the Bureau of Reclamation:
The Bureau of Reclamation announced today that releases from Lewiston Dam into the Trinity River for the “dry” water year with a total volume of 453,000 acre-feet will reach a peak flow of 8,500 cubic feet per second over the two-day period of May 5 and 6, 2015 for coarse sediment management purposes as part of the Trinity River Restoration Program.
Releases will begin increasing gradually on April 22, with more rapid increases from April 30-May 4, and remain at the peak of 8,500 cfs for a period of 2 days. Release rates will then be reduced to 2,000 cfs over a period of 11 days. As the flows recede, several days of flows at 2,000, 1,200, and 700 cfs follow for monitoring purposes. The summer base-flow rate of 450 cfs will begin on June 30.
The public should take appropriate safety precautions whenever near or on the river. Landowners are advised to clear personal items and debris from the floodplain prior to the releases.
The December 2000, Trinity River Mainstem Fishery Restoration Record of Decision created a plan for the restoration of the Trinity River and its fish and wildlife populations. The Program’s restoration strategy includes four different restoration elements, two of which include increased releases to the river and sediment management. Flow regimes link two essential purposes deemed necessary to restore and maintain the Trinity River’s fishery resources: 1) flows to provide physical fish habitat (i.e., appropriate depths and velocities, and suitable temperature regimes for anadromous salmonids), and 2) flows to restore the riverine processes that create and maintain the structural integrity and spatial complexity of the fish habitats. More information on the Trinity River ROD can be found atwww.trrp.net/background/rod/.
A daily schedule of flow releases is available at www.trrp.net/restore/flows/current/, and the public may subscribe to automated notifications (via phone or email) of Trinity River release changes. The flow release schedule is posted at the Trinity River Restoration Program office, located at 1313 South Main Street, Weaverville, CA.