HUM-101 / MEN-271 Culverts


SCH Number
Public Agency
California Department of Transportation, District 1 (DOT)
Document Title
HUM-101 / MEN-271 Culverts
Document Type
NOE - Notice of Exemption
Document Description
The proposed project would rehabilitate 14 drainage systems on U.S. Highway 101 in Humboldt County and State Route 271 in Mendocino County. The purpose of the project is to restore the existing drainage facilities and prevent further damage to the surrounding roadbed. The project is needed because the culverts have exceeded their design life and are in need of repair. If not addressed, a collapse or blockage could occur causing flooding and further erosion to the roadbed. Work would include the repair and/or replacement of existing culverts, drainage inlets, headwalls, and the installation of new down drains, and rock slope protection.

Contact Information

Amanda Lee
Agency Name
Contact Types
Lead/Public Agency


Humboldt, Mendocino
State Highways
US Route101; State Route 271

Notice of Exemption

Exempt Status
Categorical Exemption
Type, Section or Code
Class 1c Section 15300
Reasons for Exemption
The project would repair or replace existing drainage facilities on the State highway system and would involve negligible expansion of the existing use. This project would not have a significant impact on the environment.


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