Modoc National Wildlife Refuge Sharkey Bridge Replacement Project
Summary
SCH Number
2025040500
Public Agency
California Regional Water Quality Control Board, Central Valley Redding Region 5
(RWQCB)
Document Title
Modoc National Wildlife Refuge Sharkey Bridge Replacement Project
Document Type
NOE - Notice of Exemption
Received
Posted
4/9/2025
Document Description
The proposed Project will demolish and remove the existing Sharkey Bridge and water control structure (WCS) and replace them with a new, updated bridge and WCS, downstream and adjacent to the existing structure. From ordinary high water mark (OHWM) to OHWM, the replacement Sharkey Bridge and WCS are approximately 60 feet long; the width from the upstream edge of the WCS and the downstream edge of the bridge is approximately 22.5 feet. Construction will include installation of the following: concrete weir walls and wingwalls, concrete abutments and piers, concrete bridge foundations and footings, riprap scour protection upstream and downstream of the replacement structure, and various fill materials behind the structure and within the realigned roadway approaches. The existing structure will be removed after the replacement structure is installed. Typical construction equipment will be used to complete the Project, including, but not limited to, the following: backhoe, front end loader, concrete pump truck, pavers, dump trucks, jackhammer, excavator, dozer, grader, possibly impact or vibratory pile drivers, other construction vehicles, and power tools. The structure installation and removal will include temporary and permanent excavation, grading, and fill below the OHWM of the river and temporary impacts within adjacent wetlands. No permanent wetland fill will be necessary at the Project site.
Contact Information
Name
Lynn Coster
Agency Name
Central Valley Regional Water Quality Control Board
Job Title
Senior Environmental Scientist
Contact Types
Lead/Public Agency
Phone
Location
Coordinates
Cities
Alturas
Counties
Modoc
Regions
Northern California
Township
42 N
Range
12 E
Section
25
Base
MDB&M
Other Location Info
Modoc National Wildlife Refuge, County Road 115
Notice of Exemption
Exempt Status
Categorical Exemption
Type, Section or Code
Title 14, Article 19, section 15302, Replacement or Reconstruction
Reasons for Exemption
This project is categorically exempt under CEQA section 15302 because the project involves the replacement of an existing structure with a new structure that will be located in the same footprint and will have substantially the same purpose and capacity as the structure replaced.
County Clerk
Modoc
Attachments
Notice of Exemption
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