Little Grass Valley Creek Fish Passage Project

Summary

SCH Number
2014028066
Lead 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
Received

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
5550 Skylane Boulevard
Santa Rosa, CA 95403

(707) 576-2699

Location

Counties
Trinity
Other Location Info
Bridgeville

Notice of Exemption

Exempt Status
Categorical Exemption
Type, Section or Code
S:15333
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.
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