Eureka Slough Bridges Geoarchaeological Investigation
Summary
- SCH Number
- 2021010059
- Public Agency
- California Department of Transportation, District 1 (DOT)
- Document Title
- Eureka Slough Bridges Geoarchaeological Investigation
- Document Type
- NOE - Notice of Exemption
- Received
- Posted
- 1/7/2021
- Document Description
- The proposed project is a geoarchaeological investigation for the Eureka Slough Bridges Replacement project. The purpose of the investigation is to gather data to inform the level of future studies needed for the bridge replacement project. The existing bridges are located approximately at post mile 79.78 on U.S. Highway 101 in Humboldt County. Core samples would be taken from 18 of 26 proposed locations adjacent to northbound U.S. 101 from post mile 79.4 to post mile 80.0 and southbound U.S. 101 from post mile 79.5 to post mile 80.0. A professional drilling crew would collect core samples of subsurface deposits using either a hollow-stem auger or a hydraulic push-tube device from areas accessible by a coring rig. Coring would be conducted at least 20 feet away from the fog line, 15 feet away from road shoulder, and 10 feet away from any known underground utility or structure. Each core would be pushed to a depth of nine meters or more below surface and would be stored in 1.2 to 1.5-meter-long and 4.7 centimeter in diameter or larger hard plastic liners for transport to a lab where they would be opened, examined, described, and subsampled. A Humboldt County drilling permit would be obtained for the coring work. All work would take place within Caltrans right of way. Biological, cultural, and traffic handling analysis have been completed.
- Contact Information
-
Felicia Zimmerman
California Department of Transportation
Lead/Public Agency
1656 Union Street
Eureka, CA 95501
Phone : (707) 441-5603
felicia.zimmerman@dot.ca.gov -
California Department of Transportation
Project Applicant
Location
- Cities
- Eureka
- Counties
- Humboldt
- Regions
- Citywide Countywide
- Zip
- 95502
- State Highways
- US Highway101
- Waterways
- Eureka Slough
- Other Location Info
- Post miles 79.4 to 80.0
Notice of Exemption
- Exempt Status
- Categorical Exemption
- Type, Section or Code
- Class 6, PRC 21084, CCR 15306
- Reasons for Exemption
- Project consists of data collection which would not result in disturbance to environmental resources.
Attachments
- Environmental Document
- 0F200 Geoarch CE 01062021 PDF 336 K
- Notice of Exemption
- 01-0F200_Geoarch_NOE PDF 121 K
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 state.clearinghouse@opr.ca.gov or via phone at (916) 445-0613. For more information, please visit OPR’s Accessibility Site.