Minor Alteration No. WA2026132 – Upper Elkhorn Basin Geotechnical Investigation Project

To perform geotechnical explorations within the Upper Elkhorn Basin that will assist in composing the Yolo Bypass Comprehensive Study, a feasibility study assessing the economic justification to widen the Yolo Bypass in the Upper Elkhorn Basin and extend the Fremont Weir to improve flood flow conveyance in the bypass system. will include one test pit, six borings, and ten cone penetration tests CPTs. The test pit will be approximately three feet wide, eight feet long, and excavated to a depth of...