Mattole Watershed Stream Improvement Project
Summary
SCH Number
2025110055
Public Agency
California Regional Water Quality Control Board, North Coast Region 1
(RWQCB)
Document Title
Mattole Watershed Stream Improvement Project
Document Type
NOE - Notice of Exemption
Received
Posted
11/4/2025
Document Description
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.
Contact Information
Name
Jacob Shannon
Agency Name
North Coast Regional Water Quality Control Board
Job Title
Senior Environmental Scientist (Specialist)
Contact Types
Lead/Public Agency
Phone
Location
Notice of Exemption
Exempt Status
Categorical Exemption
Type, Section or Code
Class 33; California Code of Regulations, Title 14, section 15333
Reasons for Exemption
This Project will restore instream and floodplain habitat to the benefit of coho salmon in Baker Creek and does not exceed five acres in total project size.
Attachments
Notice of Exemption
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