Crews drill caissons in median for overhead signs
https://www.codot.gov/projects/i70mountain/i-70-westbound-peak-period-shoulder-lane/photo-gallery/crews-drill-caissons-in-median-for-overhead-signs/view
https://www.codot.gov/projects/i70mountain/i-70-westbound-peak-period-shoulder-lane/photo-gallery/crews-drill-caissons-in-median-for-overhead-signs/@@download/image/Crews drill caissons in median for overhead signs_200212.jpg
Crews drill caissons in median for overhead signs