Humboldt 101 Drainage South
This project will rehabilitate drainage systems at 38 locations along U.S. 101 in Humboldt County approximately from the Mendocino County line to Rio Dell. It is necessary to preserve the roadway and prevent potential damage from storm events by repairing failing and deteriorated drainage systems that have exceeded their design life.
The project would replace culverts, downdrains, drainage inlets, headwalls, endwall, and retaining walls, as well as install rock slope protection and rock-lined ditches.
The environmental phase of this project is currently underway with construction anticipated from fall 2024 to the end of 2026.
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- Final Environmental Document:
For more information, contact:
Julie Price, Environmental Coordinator
Myles Cochrane, Public Information (Media inquiries)
Last reviewed: April 2023