Big Tunnel Spill Erosion Mitigation Project
Summary
SCH Number
2016048110
Public Agency
Regional Water Quality Control Board, Region 5 (Central Valley), Redding
Document Title
Big Tunnel Spill Erosion Mitigation Project
Document Type
NOE - Notice of Exemption
Received
Posted
4/7/2016
Document Description
Maintenance repairs were made to the upper, improved section of the exisitng spillway structure in 2013. The repairs included filling voids in existing concrete, repair of sub-drains, overlay of existing concrete surfaces with new shotcrete, replacement of eroded rip-rap and soil nail stabilization. However, the channel below the improved section of spillway remains unimporved and pront to erosion, which could cause instability of the channel slopes and adjacent canal facility.
Contact Information
Name
George Day
Agency Name
Regional Water Quality Control Board, Region 5 (Central Valley),
Contact Types
Lead/Public Agency
Phone
Location
Counties
Nevada
Notice of Exemption
Exempt Status
Categorical Exemption
Type, Section or Code
15301, Class 1
Reasons for Exemption
Existing Facilities. The project is needed to prevent erosion and stabilize the spillway channel slopes and adjacent canal facility.
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 state.clearinghouse@opr.ca.gov or via phone at (916) 445-0613.