Construction Inspection

THE PROJECT
The NYSDOT sought to build a new section of divided highway on U.S. Route 15 (the future I-99), from Watson Creek to Presho, in Lindley. The highway was built on a new alignment and key concerns were erosion control and stormwater-pollution prevention. The project involved two phases.
Erdman Anthony was selected to provide construction inspection services for the project.

FEATURES/SOLUTIONS
Phase I included clearing and grubbing, 4.5 million cubic meters of earthwork, rock excavation, drainage, asbestos removal, demolition of 25 buildings, retaining walls, service roads, and new concrete pavement.  Our firm provided the office engineer and six inspectors.
Phase II involved the new construction of three crossings over the highway. These crossings involved six bridges and their corresponding tie-ins. The bridges (northbound and southbound lanes) cross over the interstate at Watson Creek Road (two spans), Morgan Creek Road (four spans), and Stowell Road (one span).

IMPACTS
The four-lane expressway and bridges minimized conflicts between through and local traffic, reduced current congestion, improved highway capacity, reduced the potential for accidents, and provided system continuity with other US Route 15 improvements from Williamsport, Pennsylvania to Corning, New York.