Water Year 2015 Restoration Flow Schedule
Water Year 2016 begins October 1st, 2015. Initially, the flow release for restoration purposes is expected to follow the recommended base-flows from the 1999 Trinity River Flow Evaluation Final Report: starting at 450cfs, dropping to 300cfs in mid-October, and remaining there until late-April. The spring and summer restoration flow schedule is typically completed and posted in April and will be posted here immediately upon official recommendation. Late-summer flows to augment the Klamath River are separate from the Trinity River Restoration Program, so will not be posted here. The U.S. Bureau of Reclamation may change dam releases at any time.
Flow Scheduling Process
Based on preliminary water year forecasts in February and March, technical representatives of the Trinity River Restoration Program and program partners develop flow release recommendations to meet various restoration objectives and management targets listed in Chapter 8 of the Trinity River Flow Evaluation Final Report [PDF – 10mb]. Deliberations start with the typical flow release schedule recommended in the Record of Decision that may be adapted to meet specific restoration needs for the current year.
The flow recommendations are then presented to the Trinity Adaptive Management Working Group (TAMWG) and the Trinity Management Council (TMC) in March or early April for consideration. The flow release recommendation approved by the TMC is then forwarded to the U.S. Bureau of Reclamation and U.S. Fish and Wildlife Service as CVPIA co-lead agencies for the U.S. Department of Interior, which has the final authority over dam releases.
Online Flow Data
Explore flow release data in our Online Data Portal (ODP):
- Restoration Flow Schedule Recommendations.
- Trinity River flow at Lewiston streamgage (calculated by USGS): 2010 – present
- Trinity River flow at Lewiston streamgage (calculated by USGS): 1911 – present
- Trinity River watershed streamgage Data Package
Additionally, current flow information from the USGS gages is reported on our home page in the blue box of “Trinity River Current Flows”.