Somerville Creek Instream Restoration Project

Salmonid Habitat Restoration and Acquisition

Project ID	1611968210410
Recovery Domains	N. CA - S. OR and CA Coast
Start Date	04/19/2021
End Date	02/28/2023
Year	2018
Status	Ongoing
Last Edited	04/13/2022

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Description

The specific objective of this Project is to construct 28 LW features along 0.7 miles of Somerville Creek. The structures will contain 131 pieces of LW, including 19 pieces with rootwads attached. The completion of this project will raise the LW count in the project reach to 213 pieces per mile, which far exceeds the very good threshold as defined in the SONCC Coho Recovery Plan (NMFS, 2014). Additionally, 80 trees will be planted in the riparian zone along the project reach.

Project Benefit

The Project will improve instream habitat by enhancing spawning and rearing habitat by increasing pool area and depth, increasing shelter complexity, capturing and sorting spawning gravels, increasing floodplain and side channel inundation, recruiting large and small wood, and providing velocity refugia during high winter flows.

Accomplishments

Metric

Completed

Originally
Proposed

Instream Habitat

Stream Miles Treated

.70

Riparian Habitat

Stream Miles Treated

.40

Acres Treated

Source

Funds

PCSRF

$175,277

In-Kind Donated Labor

$10,822

In-Kind Other

$33,000

Report Total:

$219,099

Worksites

1611968210630

Worksite Identifier: 1611968210630
Start Date:
End Date:

Area Description
Somerville Creek

Location Information

Basin: Northern California Coastal
Subbasin:
Watershed:
Subwatershed:

State: California
Recovery Domain: N. CA - S. OR and CA Coast
Latitude: 40.102957
Longitude: -123.891481

ESU

California Coastal Chinook Salmon ESU
Southern Oregon/Northern California Coast Coho Salmon ESU
Northern California Steelhead DPS

Map

Photos

Metrics

C.0 Salmonid Habitat Restoration and AcquisitionY (Y/N)
- . . C.0.a Habitat restoration and acquisition funding .00
- . . C.0.b Length of stream treated/protected
- . . C.0.c
  Project identified in a Plan or Watershed Assessment
- . . C.0.d.1 Project Monitoring (LOV)
- . . C.0.d.2 Monitoring Location (LOV)
- . . C.4 Instream Habitat ProjectY (Y/N)
  - . . . . C.4.a Instream Habitat Funding
  - . . . . C.4.b Total length of instream habitat treated
  - . . . . C.4.d.1 Channel structure placementY (Y/N)
    - . . . . . . C.4.d.2 Material used for channel structure (LOV)
    - . . . . . . C.4.d.3 Miles of stream treated through channel structure placement
    - . . . . . . C.4.d.7 Number of structures placed in channel
  - . . C.5 Riparian Habitat ProjectY (Y/N)
    - . . . . C.5.a Riparian Habitat Funding
    - . . . . C.5.b.1 Total riparian miles streambank treated
    - . . . . C.5.b.2 Total Riparian Acres Treated
    - . . . . C.5.c.1 Riparian plantingY (Y/N)
      - . . . . . . C.5.c.2
        Species of plants planted in riparian
      - . . . . . . C.5.c.3 Acres planted in riparian
      - . . . . . . C.5.c.4 Miles of streambank treated with riparian planting