Route 299 Drainage Rehabilitation


SCH Number
Lead Agency
Regional Water Quality Control Board, Region 1 (North Coast), Santa Rosa
Document Title
Route 299 Drainage Rehabilitation
Document Type
NOE - Notice of Exemption

Document Description
The purpose of the project is to replace 8 culverts on State Route (SR) 299, at Post Miles (PMs) 21.03, 24.04, 26.64, 27.14, 29.54, 31.01, 31.27, and 34.20 in Humboldt County. The goal of the project is to maintain public safety and prevent highway damage due to potential drainage system failures. Common drainage system elements that will employed include culverts, down-drains, headwalls, dikes, drainage inlets and energy dissipation (rip-rap). Common problems with existing drainage systems include corroded and damaged culverts, undersized culverts, inadequate or missing headwalls or rip-rap, and lack of down-drains.

Contact Information
Brandon Stevens
Regional Water Quality Control Board, Region 1 (North Coast), Sa
5550 Skylane Boulevard, Suite A
Santa Rosa, CA 95403

(707) 576-2377


State Highways
SR 299
Other Information
Willow Creek, CA; PM 21.03 - 34.20

Notice of Exemption

Exempt Status
Categorical Exemption
Type, Section or Code
S: 15301
Reasons for Exemption
This project involves restoring existing roadway structures and replacing the existing culvert structures and incorporates energy dissipation below the roadway to decrease future degradation with de minimus increase in fill.
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