Regional Water Quality Control Board, Region 1 (North Coast), Santa Rosa
Repair Drainage Systems Project
NOE - Notice of Exemption
The purpose of the proposed project is to replace or repair 15 drainage systems that have deteriorated beyond their useful service life, located on State Route 162 at Post Miles 1.26,1.79,3.52,3.70,6.12,7.2,9.87,11.38,14.41,15.08,15.79,19.75,21.42,24.09, and 33.94. The project is needed to avoid roadway washout or more extensive roadway reconstruction due to failing culverts, maintain a safe-travel-way for the public, and remove any future threat to water quality. Work will include two retaining walls, placement of rock slope protection, roadway reconstruction, and culvert replacement.
This project involves restoring existing roadway structures and installing culvert downdrains and energy dissipation below the roadway to decrease future degradation with deminimus increase in fill. The project will not result in an expansion of the existing use.
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