Sisar Creek Arizona Crossing Replacement Design AlternativesAnalysis

Salmonid Restoration Planning and Assessments

Restoration Planning And Coordination
Project ID724811
Recovery DomainsS. California - S. Central CA Coast
Start Date06/01/2016
End Date03/19/2018
Last Edited11/05/2021
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Initial Alternatives included: a single span bridge with full channel cacity, a single span with moderate flood capity. The selected alternatives involved the replacement of the existing crossing with a single span bridge, which varied in structure type and flood capacity. A 90-foot span truss style bridge was selected as the preferred approach and 65% designs were developed.

Project Benefit    

Future replacement of the Arizona crossing will allow access to more habitat for spawning and cover.


Metric Completed Originally

Funding Details

Report Total:$53,844

Project Map



  • Worksite Identifier: 7211062
  • Start Date:
  • End Date:
Area Description
Sisar Creek

Location Information

  • Basin: Ventura-San Gabriel Coastal
  • Subbasin:
  • Watershed:
  • Subwatershed:
  • State: California
  • Recovery Domain: S. California - S. Central CA Coast
  • Latitude: 34.428611
  • Longitude: -119.112778


  • Southern California Steelhead DPS




  • B.0 Salmonid Restoration Planning and AssessmentsY (Y/N)
    •      . . B.0.a Planning And Assessment Funding 109,317.00
    •      . . B.0.b.1 Area Encompassed 1.4
    •      . . B.1 Restoration Planning And CoordinationY (Y/N)
      •      . . . . B.1.a Planning and Coordination funding 53,844.00
      •      . . . . B.1.b.11 Engineering/design work for restoration projectsY (Y/N)
        •      . . . . . . B.1.b.11.a
          Name of plan implemented
          NOAA, 2012, Southern California Steelhead Recovery Plan - Final, NOAA, Long Beach, CA
        •      . . . . . . B.1.b.11.b
          Description and scope of the plan implemented
          The primary objective of the Project is to determine an appropriate Arizona crossing replacement/adjustment on Sisar Creek that will restore steelhead passage/migration from the Pacific Ocean to vital rearing and spawning habitat. This Project is particularly crucial under the current drought conditions as these upstream habitats display increased canopy cover and/or are spring fed with cooler water, which keep instream temperatures lower/suitable for steelhead survival which are issues stated in the Recovery Plan.