Trinity River Restoration
NEED FOR ACTION
Construction of dams, diversion of water, and reduction of flows in the Trinity River have impacted the river’s ecology, its fisheries, and its ability to recover from prior mining activities. In addition to the dams blocking salmon from the upper watershed, studies during the 1980s and 1990s revealed that weak flows resulted in channel simplification and a reduction of habitat for juvenile salmon.
This page gives a broad overview of TRRP restoration; more details are given on pages for each of TRRP’s restoration activities.
The overall strategy of the Trinity River Flow Evaluation Final Report (TRFEFR) and the Trinity River Restoration Record of Decision (ROD) is to restore physical process and rescale the Trinity River as a foundation for fishery recovery. The ROD established the current Trinity River Restoration Program (TRRP) and specifies:
- Four modes of restoration: