Arroyo Simi Bridge Scour Mitigation Project (Streambed Alteration Agreement, No. EPIMS-VEN-33011-R5)
Summary
SCH Number
2026100460
Public Agency
California Department of Fish and Wildlife, South Coast Region 5
(CDFW)
Document Title
Arroyo Simi Bridge Scour Mitigation Project (Streambed Alteration Agreement, No. EPIMS-VEN-33011-R5)
Document Type
NOE - Notice of Exemption
Received
Posted
10/14/2026
Document Description
The California Department of Fish and Wildlife has executed Streambed Alteration Agreement No. EPIMS-VEN-33011-R5, pursuant to Section 1602 of the Fish and Game Code to the Southern California Regional Rail Authority, as represented by Aaron Azevedo.
The whole of the Arroyo Simi Four Bridges Scour Mitigation Project involves the installation of scour countermeasures at four railroad bridges that pass over Arroyo Simi Creek. Scour countermeasures for each bridge include the following, removal and in-kind replacement with rock slope protection and extension of riprap at the bridge abutments; extension of concrete casings around existing steel piles at each pier; installation of filter fabric at the bottom of the channel below riprap apron; backfill of native soil over riprap; and restoration of impacted areas upon completion of construction. The existing single-track configuration at each bridge location would remain upon implementation of the proposed scour countermeasures. Prior to construction, the proposed access road will be graded, vegetation within the project area will be removed, and any remnant concrete collars, piles, caps, footings, and existing rock slope protection will be removed. The project will utilize equipment such as excavators, loaders, haul trucks, water trucks, concrete pumper trucks, chainsaws, generators and pumps, and a backhoe with a hydraulic hammer. A water diversion will be needed to complete the proposed work.
Contact Information
Name
Angela Castanon
Agency Name
California Department of Fish and Wildlife
Job Title
Environmental Scientist
Contact Types
Lead/Public Agency
Phone
Name
Aaron Azevedo
Agency Name
Southern California Regional Rail Authority
Job Title
Metrolink Director
Contact Types
Parties Undertaking Project
Address
Phone
Email
Location
Coordinates
Cities
Moorpark
Counties
Ventura
Regions
Southern California
Parcel #
512-0-150-565
Other Location Info
The majority of the project is located in the City of Moorpark, with a small portion between Bridge 428.63 and Bridge 429.26 extending into unincorporated Ventura County. Project footprint encompasses approximately 15.94 acres, which includes three noncontiguous locations within and adjacent to the right of way (ROW). All locations are within the USGS Simi Valley West 7.5-minute quadrangle. The existing bridges are located at mile posts 427.70, 428.15, 428.63, and 429.26 on the Southern California Regional Rail Authority’s (SCRRA) Ventura County Line of the Metrolink Ventura Subdivision. The project site can be located using the following information: Latitude 34.284892, Longitude -118.869588; Assessor’s Parcel Number 512-0-150-565.
Notice of Exemption
Exempt Status
Categorical Exemption
Type, Section or Code
Public Resources Code section 15301. Pursuant to Public Resources Code section 21080.1(a)
Reasons for Exemption
On May 20, 2022 the Southern California Regional Rail Authority, the Lead Agency, determined that the Project is categorically exempt pursuant to Public Resources Code section 15301. The Lead Agency determined that the Project meets certain qualifying criteria for the exemption. Pursuant to Public Resources Code section 21080.1(a), the Lead Agency is responsible for determining whether the Project is exempt from CEQA and that determination shall be final and conclusive on all persons, including Responsible Agencies. As a result, CDFW, acting as a Responsible Agency, is bound by the Lead Agency’s determination that the Project is exempt from CEQA.
County Clerk
Ventura
Attachments
Notice of Exemption
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