Blue Slide Emergency Culvert Replacement Project
Summary
SCH Number
2025101387
Public Agency
California Department of Parks and Recreation
Document Title
Blue Slide Emergency Culvert Replacement Project
Document Type
NOE - Notice of Exemption
Received
Posted
10/28/2025
Document Description
Project entailed the replacement of a culvert near the Blue Slide Day Use Area on Mattole Road in Humboldt Redwood State Park to alleviate and prevent current and future erosion issues to ensure the continued use of Mattole Road for park staff, visitors, and nearby community residents. Work included:
• Use an excavator to relocate K-rail sections to outside the excavation area;
• Excavate a trench down to the existing culvert, expose it, and remove the old pipe and dispose of it at a scrap metal facility;
• Backfill and compact any sink holes or washed-out areas;
• Install a new pipe with the same dimensions into the existing trench, matching the existing inlet and outlet configuration;
• Place appropriately sized rock slope protection at the culvert inlet to protect fill from saturation and scour and to direct flow into the culvert;
• Fill and compact, in 6-inch lifts, with a mechanical compactor until the trench is refilled; and
• Repave and reinstall K-rails.
Contact Information
Name
Rosalind Litzky
Agency Name
California Department of Parks and Recreation, North Coast Redwoods District
Job Title
District Planner
Contact Types
Lead/Public Agency
Address
Phone
Location
Cities
unincorporated area
Counties
Humboldt
Regions
Northern California
Other Location Info
This project is located in Humboldt Redwoods State Park.
Notice of Exemption
Exempt Status
Statutory Exemption
Type, Section or Code
Section: 15269
Reasons for Exemption
The project constitutes emergency repairs to service facilities necessary to maintain services essential to the public health safety or welfare and will not result in an increase in size or capacity.
County Clerk
Humboldt
Attachments
Notice of Exemption
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