MCSD Sewer Crossing Retrofit Special Permit and Coastal Development Permit Record Number: PLN-2025-19446 Assessor Parcel Numbers (APN): Listed in Attachment 1C A Coastal Development Permit (CDP) and Special Permit (SP) for McKinleyville Community Services District to retrofit the three U.S. 101 sewer crossings that drain wastewater from the east side of U.S. 101 to the west side where the District’s treatment facility is located. A Special Permit is required for major vegetation removal to facilitate the retrofit. The proposed replacement method for each highway crossing is Horizontal Auger Boring (HAB). A previous CDP (PLN-2025-19282) authorized geotechnical drilling to determine appropriate design parameters. The retrofitted sewer crossings would increase earthquake resiliency of the utility above current conditions.

Committee

Zoning Administrator

Introduced

March 6, 2026

On agenda

March 19, 2026

Passed

March 19, 2026

Where it was heard

Zoning Administrator Mar 19, 2026 approved

Watch Humboldt County

Say what matters to you — a street, a company, a subject — and we will email you when Humboldt County files something about it.

Watch this

Free for 14 days, no card — and nothing charges itself: at day 14 the emails simply stop unless you choose to subscribe ($19 a month). One email when something matches, and nothing else. Unsubscribe from any of them. Searching stays free — it is public record.