Geotechnical Drilling Studies

Geotechnical Drilling Studies

Caltrans proposes to conduct geotechnical drilling studies from (PM) 8.0 to 8.5, on (SR) 199 in Del Norte County. The subsurface data collected by the proposed study in necessary in the preparation of foundation recommendations for a future project. Caltrans drilling crews anticipate drilling approx. five (5) borings. One (1) six inch boring will be located in teh northbound lane of (SR) 199, two (2) six inch borings will be located in the turnouts, one at the north and one at the south end and two (2) six inch borings will be located off the highway outside of the existing guardrail on the east side of the roadway (providing Caltrans Maintenance can remove the guardrail for access. If guardrail can't be removed, three of the proposed boring locations will be located near the center of the northbound land. It is anticipated that each boring will take approx. two working days to complete. The maximum depth of the borings from the ground surface is anticipated to be up to 150 (depending on pile size, design loads and strenth of the subsurface materials). All work is to be performed in the existing lanes, turnouts, and off road on the east side of (SR) 199. Traffic control and lane closures will be required for these borehole locations. No right of way acquisition or permits are required for this operation. Transportation Conformity does not apply to this project.

Del Norte