HUM-169 Rehab 52 Culverts

3 Documents in Project


SCH Number
Lead Agency
California Department of Transportation, District 1 (DOT)
Document Title
HUM-169 Rehab 52 Culverts
Document Type
NEG - Negative Declaration
Present Land Use
Document Description
The proposed project is on State Route 169 (SR 169), a rural highway in Humboldt and Del Norte counties. SR 169 is a single lane highway (with segments of two lanes) that provides access to private property and residences, schools, emergency services, employment, mail and fuel delivery, traditional cultural areas, and recreational activities. Culverts included in this project were evaluated and determined to be in poor or fair condition, with some culverts degraded beyond repair. Rehabilitation activities include full culvert replacement using the cut and cover method, headwall and inlet replacement and construction, underdrain installation, and culvert abandonment/ditch regrading at one location. Rock energy dissipator (RED) and rock slope protection (RSP) would also be placed at certain culvert locations to reduce soil erosion and protect water quality. Some locations would require temporary water diversion to complete work. Private water lines that pass through culverts would be removed and replaced in-kind. Where necessary, elements of culvert work would have site-specific designs (referred to as nonstandard) to reduce impacts, avoid natural features, etc. Construction is currently scheduled to begin in May 2024 and finish in December 2026, with approximately 190 total working days. Full road closures lasting up to seven hours would be required at locations where the roadway is too narrow to allow safe passage around construction. Some full closures may occur at night. Staging may occur at any pullout large enough within the Environmental Study Limits (ESL) for staging outside of sensitive resource areas.

Contact Information

Cari Williams
Agency Name
Caltrans District 1
Job Title
Associate Environmental Planner
Contact Types
Lead/Public Agency


Weitchpec, Pecwan
Countywide, Northern California, Unincorporated
Cross Streets
State Route 169, between State Route 96 and Myers Lane
State Highways
SR 169, SR 96
eitchpec Elementary, Jack Norton Elementary
Klamath River

Notice of Completion

State Review Period Start
State Review Period End
State Reviewing Agencies
California Department of Conservation (DOC), California Department of Fish and Wildlife, Northern and Eureka Region 1 (CDFW), California Department of Forestry and Fire Protection (CAL FIRE), California Department of Parks and Recreation, California Department of Transportation, District 1 (DOT), California Department of Water Resources (DWR), California Governor's Office of Emergency Services (OES), California Native American Heritage Commission (NAHC), California Natural Resources Agency, California Regional Water Quality Control Board, North Coast Region 1 (RWQCB), California State Lands Commission (SLC), California Transportation Commission (CATC), Office of Historic Preservation, State Water Resources Control Board, Division of Water Quality, California Highway Patrol (CHP)
State Reviewing Agency Comments
California Highway Patrol (CHP)
Development Types
Transportation:Highway/Freeway (Drainage rehabilitation)
Local Actions
Highway project
Project Issues
Biological Resources, Drainage/Absorption, Flood Plain/Flooding, Greenhouse Gas Emissions, Hydrology/Water Quality, Transportation, Wetland/Riparian, Wildfire


Draft Environmental Document [Draft IS, NOI_NOA_Public notices, OPR Summary Form, Appx,]
Notice of Completion [NOC] Transmittal form
State Comment Letters [Comments from state reviewing agencies]

Disclaimer: The Governor’s Office of Planning and Research (OPR) accepts no responsibility for the content or accessibility of these documents. To obtain an attachment in a different format, 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. For more information, please visit OPR’s Accessibility Site.

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