Slingerlands Bypass Highway Reconstruction

Slingerlands Bypass (NY Rte 85) Highway Reconstruction

Town of Bethlehem, Albany County, New York

This project involved the reconstruction of 1.75 miles of roadway and the new construction of 1.5 mile of limited-access highway along Slingerlands Bypass on NY Route 85. The reconstruction portion of the project involved widening an existing two-lane undivided highway section to a four-lane divided highway. The existing bridge structure was modified and widened to accommodate the roadway. The new construction portion of the project includes building a four-lane divided highway on new alignment. The project also included the construction of three 2-lane modern roundabouts. Slingerlands Bypass was a pilot project for NYSDOT for the integration of automated machine control grading and the use of Quantity Manager, a Bentley system that utilizes GPS technology. Creighton Manning, as prime consultant, was responsible for the preparation of all preliminary and final highway design plans and the environmental impact statement (EIS). The project received several industry awards for engineering excellence from the Federal Highway Administration, American Council of Engineering Companies, and American Public Works Association. Slingerlands Bypass also won an international Bentley Be Inspired Award for Innovation in Roads, 2009.