Mattole Watershed Stream Improvement Project

The goals of phase one of this project are to 1) realign 160 feet of current channel to occupy 300 feet of historic meander and install four rock weirs in the new channel for grade control, 2) use floodplain alluvium from channel excavation to seal log weirs in previous channel, 3) install woody debris habitat features in 1,300 feet of Bureau of Land Management project reach to create essential aquatic habitat, and 4) maintain existing weirs in the project reach to achieve desired functionality. For future phases, restoration needs and proposed treatments will be identified and developed as part of a five-year restoration plan funded by the BLM. Future phases will seek approval from the Water Board through annual work plans submitted by the BLM and Mattole Salmon Group as they are identified. The majority of project treatments will propose installation of woody habitat structures to encourage backwatering, promote deposition and enhance natural wood and sediment accumulation.