Lupton Curve Improvement Project


SCH Number
Lead Agency
Regional Water Quality Control Board, Region 1 (North Coast), Santa Rosa
Document Title
Lupton Curve Improvement Project
Document Type
NOE - Notice of Exemption

Document Description
The proposed project would occur on SR 299 between post miles R21.1 and R21.5, approx. 11 miles east of Blue Lake, and approx. 0.1 miles east of Chezem Road in Humboldt County. The purpose of the project is to improve safety on a curvilinear segment of SR 2999 with a higher than average rate of collisions. The Project involves constructing two retaining walls on either side of the roadway that would provide additional area to accommodate roadway widening; a 931 foot long approx. 9 foot high, Mechanically Stabilized Earth wall would be embedded into the northern side of the roadway fill section, and a 178 foot long wall consisting of guard railing elements would be constructed on the south side. The proposed project also includes drainage modifications including abandonment of an existing roadside drainage inlet and downdrain, replacement of a failing culvert, and underdrain replacement.

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

Phone : (707) 576-2699



Notice of Exemption

Exempt Status
Categorical Exemption
Type, Section or Code
S:15301, Class 1
Reasons for Exemption
Existing Facilities.

Disclaimer: The document was originally posted before CEQAnet had the capability to host attachments for the public. To obtain the original attachments for this document, please contact the lead agency at the contact information listed above. You may also contact the OPR via email at or via phone at (916) 445-0613.

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