This Caltrans project in Monterey County consisted of jacking a concrete box culvert under U.S. 101. The jacking technique eliminated any impacts to the traveling public and surrounding community as the highway remained fully operational.  Drill Tech built the launch slab and box away from the highway, eliminating the need for constructing additional support structures. Because there was only four feet of cover over the box, Drill Tech used a special steel sheet roll-out technique to prevent movement of the highway above. The innovative steel sheet roll-out method ensured successful box installation.