Lewiston Dam Flow Schedule Mar. 15 - Apr. 15

[Abel, Kiana]

The California Department of Water Resources March 90% B120 declaration for the Trinity River Basin was published on Mar. 10 as “wet” with the 90% probability of 1,415,000 acre feet of inflow to Trinity Reservoir for the water year.

The hydrograph developed by the Program with the “wet” water allocation for Mar. 15 – Apr. 14 will commence on March 21 after Storage Management Releases from Trinity Reservoir come to a close.

The schedule for this period is available here (and also attached): https://www.trrp.net/restoration/flows/current/

Post Apr. 15, commences the Snow Melt Peak and Recession Period (Apr. 15-variable). Hydrographs to match two possible 2025 water year types, "wet" and "ex. wet" were developed by the technical flow workgroup and approved by the Trinity Management Council on Mar.19. The schedule is currently awaiting regional approval as well as finalization regarding the California Department of Water Resources April B120 water year determination. We will release a recommended draft schedule for that period as soon as we are able. 

Cheers, 

Kiana

Kiana Abel

Public Affairs Specialist | Trinity River Restoration Program | U. S. Bureau of Reclamation 

1313 S. Main St., Weaverville, CA 96093-1300 | 530-623-1804 (desk) | 530-739-9761 (cell) | ja...@usbr.gov

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