Silverthorne
Bridge foundation investigation along I-70.
https://www.codot.gov/business/designsupport/materials-and-geotechnical/programs/geotech/drilling/cme-550/Silverthorne.JPG/view
https://www.codot.gov/business/designsupport/materials-and-geotechnical/programs/geotech/drilling/cme-550/Silverthorne.JPG/@@download/image/Silverthorne.JPG
Silverthorne
Bridge foundation investigation along I-70.