Lebanon County , Pennsylvania

Designated a National Historic Civil Engineering Landmark in 1970, this tunnel is the oldest existing transportation tunnel in the United States. At the time of its construction, it was considered a work almost unknown in this country.

Our involvement on this site involved the complete restoration of the existing tunnel portal and restoration of the section of the existing canal immediately downstream of the tunnel. Working with the Lebanon County Historical Society, the ultimate project objective was to create a small recreational park for this area. Working with the architect and appropriate agencies, a plan was developed to reconstruct the walls of the canal and transform the area into a Day Use Facility for visitor use, enjoyment, and education.