Upper Walker Creek Watershed Road Related Sediment Source Assessment

Salmonid Restoration Planning and Assessments

Project ID	725603
Recovery Domains	N Central California Coast
Start Date	06/01/2018
End Date	04/15/2021
Year	2020
Status	Completed
Last Edited	04/14/2022

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Description

The purpose of the Upper Walker Creek Watershed Road-Related Sediment Source Assessment project was to evaluate road and trail related erosion problems within the Upper Walker Creek watershed, identify and quantify sediment delivery to streams, and present a prioritized plan of action for longterm, cost-effective erosion and sediment control.

Included is the final landowner report (Plan-of-Action) for the Walker Creek Ranch and the final landowner report (Plan-of-Action) for the McLaughlin property.

Included is the Draft summary of findings for Coyote Peak Road for the Upper Walker Creek Watershed Road-Related Sediment Source Assessment. This draft summarizes findings and recommendations for the Coyote Peak access road to assist with road construction designs that are underway by the County of Marin. This report includes recommended erosion prevention and erosion control treatments with a map showing the locations of all sediment source sites and the proposed new CPR alignment.

Project Benefit

The implementation of erosion control and erosion prevention work is an important step in protecting and restoring watersheds and their anadromous fisheries. This projects objectives will result in an immediate benefit to the streams and aquatic habitat of the basin and will help ensure that the biological productivity of the watersheds streams is not impacted by future erosion.

Source

Funds

PCSRF

$67,922

State

$46,863

In-Kind Other

$9,585

Report Total:

$124,371

Worksites

7211308

Worksite Identifier: 7211308
Start Date:
End Date:

Area Description
Upper Walker Creek Watershed

Location Information

Basin: San Francisco Bay
Subbasin:
Watershed:
Subwatershed:

State: California
Recovery Domain: N Central California Coast
Latitude: 38.1702028
Longitude: -122.8203861

ESU

Central California Coast Coho Salmon ESU
Central California Coast Steelhead DPS

Map

Photos

Metrics

B.0 Salmonid Restoration Planning and AssessmentsY (Y/N)

. . B.0.a Planning And Assessment Funding 120,872.00
. . B.0.b.1 Area Encompassed 1,915.0
. . B.0.b.2 Stream Miles Affected 22.98

. . B.1 Restoration Planning And CoordinationY (Y/N)

. . . . B.1.a Planning and Coordination funding 120,872.03

. . . . B.1.b.8 Conducting habitat restoration scoping and feasibility studiesY (Y/N)

. . . . . . B.1.b.8.a
Name of plan implemented

NOAA Fisheries, 2012, Recovery Plan for California Central Coast Coho Salmon Evolutionarily Significant Unit, NOAA , Santa Rosa, CA

. . . . . . B.1.b.8.b

Description and scope of the plan implemented
This project addresses NOAA Recovery Plan WalC-CCC-23.1.1.3 (NOAA 2012) through a comprehensive assessment along 55 miles of road/trail within the Upper Walker Creek Watershed to identify existing and potential sources of sediment.

. . . . B.1.b.12 Developing restoration/action planY (Y/N)

. . . . . . B.1.b.12.a

Name of plan developed
1) Pacific Watershed Associates, 2020, PWA Report No. 201029901 Sediment Source Assessment Results: Walker Creek Ranch Property 2) Pacific Watershed Associates, 2020, PWA Report No. 201029902 Sediment Source Assessment Results: McLaughlin Property

. . . . . . B.1.b.12.b

Description and scope of the plan developed
This project evaluated road and trail related erosion problems to identify and quantify sediment delivery to streams and ponds. The assessment results present a prioritized plan of action for long-term, cost-effective erosion and sediment control to represent a critical step in reducing road and trail related erosion in the project area.