Little Grass Valley Creek Fish Passage Project


SCH Number
Public Agency
Regional Water Quality Control Board, Region 1 (North Coast), Santa Rosa
Document Title
Little Grass Valley Creek Fish Passage Project
Document Type
NOE - Notice of Exemption

Document Description
The proposed Project is located don State Route (SR) 299, at post-miles 68.0 and 68.2, in Trinity County. The purpose of the Project is to provide fish passage improvements at two concrete-lined culverts within Little Grass Valley Creek, a tributary to the Trinity River. Project elements include: Installation of twenty-one in-line concrete ramp weirs within two separate 12-foot-diameter steel-pipe culverts; Installation of two vortex boulder weirs downstream of each culvert. The boulder weirs will form a step-pool configuration and ease upstream fish passage; and Removal of 350 cubic yards of stream bed and bank materials to allow for weir installation.

Contact Information
Brendan Thompson
Regional Water Quality Control Board, Region 1 (North Coast), Sa
Lead/Public Agency
5550 Skylane Boulevard
Santa Rosa, CA 95403

Phone : (707) 576-2699


Other Location Info

Notice of Exemption

Exempt Status
Categorical Exemption
Type, Section or Code
Reasons for Exemption
The project would be implemented to assure improved fish passage at two locations. There would be no significant adverse impact on listed species or their habitat.

Disclaimer: The document was originally posted before CEQAnet had the capability to host attachments for the public. To obtain the original attachments for this document, please contact the lead agency at the contact information listed above. You may also contact the OPR via email at or via phone at (916) 445-0613.

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