California Department of Transportation - Little Grass Valley Creek Culvert Repair
Summary
SCH Number
2008018194
Public Agency
Regional Water Quality Control Board, Region 1 (North Coast), Santa Rosa
Document Title
California Department of Transportation - Little Grass Valley Creek Culvert Repair
Document Type
NOE - Notice of Exemption
Received
Posted
1/24/2008
Document Description
The project involves filling voids beneath the existing culvert invert with grout, paving the invert with an eight-inch thick layer of concrete, constructing a headwall at the culvert inlet, installing rock slope protection (RSP) around the inlet, and removing select steel members of the existing debris catcher. Heavy equipment, such as backhoes and concrete pumping trucks, will be operated from temporary access roads that will terminate above the stream banks. A temporary sandbag diversion dam will be installed at a natural bottleneck in the stream located approximately 30 feet upstream of the culvert inlet. A temporary containment dam will be installed approximately 10 feet downstream of the culvert outlet.
Contact Information
Name
Dean Prat
Agency Name
Regional Water Quality Control Board, Region 1 (North Coast), Sa
Contact Types
Lead/Public Agency
Phone
Location
Counties
Trinity
Other Location Info
City/Community: near Buckhorn Station
Notice of Exemption
Exempt Status
Categorical Exemption
Type, Section or Code
Section 15301
Reasons for Exemption
The project involves the repair and maintenance of an existing culvert involving no expansion of use.
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