Fish Passage and Off-Channel Habitat Restoration at Roy's Pools

Salmonid Habitat Restoration and Acquisition

Project ID	725512
Recovery Domains	N Central California Coast
Start Date	07/01/2018
End Date	08/12/2022
Year	2017
Status	Completed
Last Edited	01/25/2024

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Description

The project removed a fish barrier known as Roys Pools. This structure consisted of a concrete dam, roughly 15 feet tall, a narrow fish ladder, and four sheet metal weirs downstream of the dam. During the summer of 2020 and again in 2021 (August- October) all man-made structures, including the dam, weirs, and fish ladder were removed. A series of rock grade control vanes and a mix of engineered streambed material (ESM) was placed on top of and between the rock vanes. A segment of the stream was relocated to the north to aid in alignment and long-term stability. The original main channel became a new seasonal side channel, which sees flows during flood events. Two LWD structures, with accompanied willow living debris clusters were placed in two pools upstream of the former dam site. A failing pedestrian bridge at the location of the dam site was removed and replaced with a full-span pedestrian bridge for trail users over the creek.

Project Benefit

Removal of the dam will provide access to 3.5 miles of upstream habitat.

Accomplishments

Metric

Completed

Originally
Proposed

Instream Habitat

Stream Miles Treated

.09

.20

Fish Passage

Barriers Removed

Miles Opened

5.00

3.50

Source

Funds

PCSRF

$2,115,705

In-Kind Donated Labor

$186,532

Report Total:

$2,302,237

Worksites

7211114

Worksite Identifier: 7211114
Start Date:
End Date:

Area Description
Roy's Pools

Location Information

Basin: San Francisco Bay (180500)
Subbasin: Tomales-Drake Bays (18050005)
Watershed: Lagunitas Creek (1805000501)
Subwatershed: San Geronimo Creek-Lagunitas Creek (180500050103)

State: California
Recovery Domain: N Central California Coast
Latitude: 38.01253
Longitude: -122.662822

ESU

Central California Coast Coho Salmon ESU
Central California Coast Steelhead DPS

Map

Photos

Metrics

C.0 Salmonid Habitat Restoration and AcquisitionY (Y/N)
- . . C.0.a Habitat restoration and acquisition funding 3,342,388.00
- . . C.0.b Length of stream treated/protected .10
- . . C.0.c
  Project identified in a Plan or Watershed Assessment
  
  NOAA CCC ESU Recovery Plan 2012 LagC-CCC-6.1.1.1
- . . C.0.d.1 Project Monitoring (LOV)
- . . C.0.d.2 Monitoring Location (LOV)
- . . C.2 Fish Passage ImprovementY (Y/N)
  - . . . . C.2.a Fish Passage Funding 2,271,646.00
  - . . . . C.2.b.1 Length of stream made accessible 5.00
  - . . . . C.2.b.3 Type of blockage/barrier (LOV)
  - . . . . C.2.b.4 Number of blockages/impediments/barriers impeding passage 1
  - . . . . C.2.c.1 Fish passage blockages removed or altered (other than road crossings reported in C.2.f to C.2.i)Y (Y/N)
    - . . . . . . C.2.c.2 Number of blockages/impediments/barriers removed/altered 1
  - . . . . C.2.d.1 Fishway chutes or pools installedY (Y/N)
    - . . . . . . C.2.d.2 Number of fishway chutes/pools installed 5
  - . . . . C.2.g.1 Bridge installed or improved at road stream crossingY (Y/N)
    - . . . . . . C.2.g.2 Number of bridges installed or improved/upgraded 1
    - . . . . . . C.2.g.3 Miles of stream made accessible by bridge installation or improvement/upgrade 5.00
  - . . C.4 Instream Habitat ProjectY (Y/N)
    - . . . . C.4.a Instream Habitat Funding 1,070,742.00
    - . . . . C.4.b Total length of instream habitat treated .09
    - . . . . C.4.c.1 Channel reconfiguration and connectivityY (Y/N)
      - . . . . . . C.4.c.2 Type of change to channel configuration and connectivity (LOV)
      - . . . . . . C.4.c.3 Miles of stream treated for channel reconfiguration and connectivity .09
      - . . . . . . C.4.c.4 Miles of off-channel stream created through channel reconfiguration and connectivity 5.00
      - . . . . . . C.4.c.6 Instream pools created/added through channel reconfiguration and connectivity 5
    - . . . . 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 .09
      - . . . . . . C.4.d.5 Pools expected to be created through channel structure placement 5
      - . . . . . . C.4.d.6 Yards of average stream-width at mid-point of channel structure placement project7 (Yards)
      - . . . . . . C.4.d.7 Number of structures placed in channel 5