Dry Dock Gulch Fish Passage Design Project

Salmonid Restoration Planning and Assessments

Restoration Planning And Coordination
Project ID1551969311912
Recovery DomainsN Central California Coast
Start Date04/01/2019
End Date03/09/2021
Last Edited06/23/2022
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The project included preparation of final engineering design documents biological and cultural resource surveys and preparation of a regulatory constraints analysis for a new larger culvert under the M-1 Road that will allow for fish passage to approximately 2,000 feet of spawning and rearing habitat. The tidal exchange is expected to form a slough channel through the existing pond. Upstream of the road an off-channel habitat for aquatic organisms was designed.

Project Benefit    

The results of this design will lead towards the implementation of a restoration project, with the preliminary title, Fish Passage Improvement at Dry Dock Pond. This restoration will restore access to ~ 2,000 of historic habitat to Coho Salmon

and NC steelhead within the 416 acre Dry Dock basin.


Metric Completed Originally

Funding Details

In-Kind Donated Labor$2,086
In-Kind Other$64,803
Report Total:$146,204

Project Map



  • Worksite Identifier: 1551969312091
  • Start Date:
  • End Date:
Area Description
Stream Crossing Location

Location Information

  • Basin: Northern California Coastal
  • Subbasin:
  • Watershed:
  • Subwatershed:
  • State: California
  • Recovery Domain: N Central California Coast
  • Latitude: 39.30043
  • Longitude: -123.72803


  • California Coastal Chinook Salmon ESU
  • Central California Coast Coho Salmon ESU
  • Northern California Steelhead DPS




  • B.0 Salmonid Restoration Planning and AssessmentsY (Y/N)
    •      . . B.0.a Planning And Assessment Funding 146,204.00
    •      . . B.0.b.1 Area Encompassed 7.4
    •      . . B.0.b.2 Stream Miles Affected .57
    •      . . B.1 Restoration Planning And CoordinationY (Y/N)
      •      . . . . B.1.a Planning and Coordination funding 146,203.51
      •      . . . . B.1.b.11 Engineering/design work for restoration projectsY (Y/N)
        •      . . . . . . B.1.b.11.a
          Name of plan implemented
          National Marine Fisheries Service. 2012. Final Recovery Plan for Central California Coast Coho Salmon Evolutionarily Significant Unit. National Marine Fisheries Service, Southwest Region, Santa Rosa, California
        •      . . . . . . B.1.b.11.b
          Description and scope of the plan implemented
          Following the guidance of regionally specific watershed plans as well as state and federal Coho Salmon recovery plans, and the 2017 Feasibility Study that preceded the designs, this project delivered final engineered design for reestablishing fish access to the existing pond and upstream tributary habitat in Dry Dock Gulch, following NMFS/CDFW guidelines. There are no current lists that prioritize barriers in the Big River Watershed, however this project is located in critical habitat in the watershed and will benefit multiple salmonid species by providing access to one of the only freshwater tributaries in the Big River estuary. In addition to addressing Coho Salmon recovery tasks, this proposal will also benefit North Coast Steelhead Trout, and addresses recovery task BigR-NCSW- ? Identify high priority barriers and restore passage per NMFS' Guidelines for Salmonid Passage at Stream Crossings (NMFS 2001a)