US Route 15 in New York and Pennsylvania: A Joint Effort in Rockslope Construction

摘要

The U. S. Route 15 Improvement Project in Tioga County, PA and Steuben County, NY is a joint effort between the New York and Pennsylvania Department of Transportations (DOT's) to upgrade the highway to a four-lane limited-access highway. The highway will be on a new alignment along the western side of the Tioga River Valley, approximately 12 miles from the interchange with PA Route 287, and will connect to the existing four-lane section of Route 15 in Presho, New York.Approximately 750,000 cubic yards (CY) of fill is needed for the construction of a new bridge over the Cowanesque River near the Pennsylvania-New York border. A large new side hill through-cut in New York will provide 370,000 CY's of the material needed for the new bridge. New York State DOT (NYSDOT) designed the rock cuts and Pennsylvania DOT (PennDOT), incorporated the rockslopes into their construction project. This paper will describe some of the issues with construction of a rock slope in New York using NYSDOT specifications within a PennDOT construction contract. The States will share responsibilities for inspection of slope construction with NYSDOT responsible for the final acceptance and maintenance of the rockslopes.