Regional Water Quality Control Board, Region 1 (North Coast), Santa Rosa
Jack & Bore Culvert Project
NOE - Notice of Exemption
The purpose of the project is to address a failing culvert that is running through a fill section located on State Route 101. PM 104.46, in Mendocino County. This project will replace and abandon an existing 48-in x 550-ft corrugated steel pipe culvert by jacking a new 48-in x 370 welded steel pipe through the existing fill prism of Route 101. A new concrete headwall will be constructed at the inlet and a rock lined ditch from the outlet to the existing 48-inch corrugated steel pipe outlet as well.