Regional Water Quality Control Board, Region 1 (North Coast), Santa Rosa
Document Title
Stormwater Mitigation Project
Document Type
NOE - Notice of Exemption
Received
Document Description
The purpose of the proposed project is to replace or repair 16 drainage systems that have deteriorated beyond their useful service life, located on State Route 3 in Trinity County. Culvert repair and replacement will protect the highway from stormwater runoff and erosion, and will reduce sediment discharges into the Trinity River and its tributaries. 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.
This project involves restoring existing roadway structures and installing culvert downdrains and energy dissipation below the roadway to decrease future degradation with de minimus increase in fill. The project will not result in an expansion of the existing use.
