Arroyo Simi Bridge 427.70 Scour Mitigation Project

Summary

SCH Number
2021090408
Public Agency
Southern California Regional Rail Authority
Document Title
Arroyo Simi Bridge 427.70 Scour Mitigation Project
Document Type
NOE - Notice of Exemption
Received
Posted
9/22/2021
Document Description
The Arroyo Simi Bridge located at mile post (MP) 427.70 (Arroyo Simi Bridge 427.70) on the Southern California Regional Rail Authority’s (SCRRA) Ventura County Line on the Ventura Subdivision currently experiences extensive scour at the abutments and piers resulting from ongoing degradation of the Arroyo Simi channel. The SCRRA is proposing to implement scour countermeasures in the form of new riprap along the channel bottom under the bridge, grouted rock-slope protection at the abutments, and concrete encasements at the piers to remediate the existing scour damage, as well as to protect against future scour.

Contact Information

Name
Deborah Suazo-Davila
Agency Name
SCRRA
Contact Types
Lead/Public Agency / Project Applicant / Parties Undertaking Project

Location

Cities
Moorpark
Counties
Ventura
Regions
Southern California
Total Acres
1.73
Railways
Metrolink Ventura County Line

Notice of Exemption

Exempt Status
Categorical Exemption
Type, Section or Code
Class 1, pursuant to CCR Title 14, Chapter 6, Division 3, Section 15301(d).
Reasons for Exemption
The Project includes scour countermeasures to mitigate existing scour at the existing railroad bridge piers and abutments, and to protect against additional future scour. The project is needed to ensure the operational safety of the Arroyo Simi Bridge 427.70. Pursuant to California Code of Regulations Title 14, Chapter 6, Division 3, Section 15301(d), the project involves the "restoration or rehabilitation of deteriorated or damaged structures, facilities, or mechanical equipment to meet current standards of public health and safety..."
County Clerk
Ventura

Attachments

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