Caltrans is proposing to conduct geotechnical investigations for the Lower Manzanita Curve Project on SR 44, between (PM) 44.8 and 45.5, in Shasta County. Geotechnical investigations will consist of seismic refraction surveys. These surveys are required to characterize the existing subsurface conditions. It has been determined that the geotechnical investigations will have no significant impacts to environmental resources. No permits are required.