To create an ingress to the western side of Liberty University's campus, a new roadway was constructed under Norfolk Southern rail lines. The design called for two 2,100-ton cast-on-site reinforced concrete box tunnels that are 20.5 ft high, 32 ft wide and 130 ft long.
Rather than a conventional box tunnel jacking method, the team pulled the box tunnels through the existing railroad embankment via post-tensioning tendons installed through the embankment and walls of the tunnels.