Erie International Airport Runway Extension and Rehabilitation
C&S designed a rehabilitation and 1,900-foot extension to Runway 6-24. As design engineers for the full program, C&S performed this project to rehabilitate the primary runway, and crosswind runway and connector taxiways within the runway safety area. The design included consideration of multiple rehabilitation options and life-cycle cost analysis and constructability considerations to make the best choice. As a result of the evaluation, it was decide to mill the existing surface course, repair the distresses, and overlay the pavement with bituminous asphalt.
The phasing was the most challenging aspect as Runway 6-24 is the only runway for air carrier, jet, and cargo operations. The development of the phasing plan involved engagement of airport-user stakeholders to determine operational needs and wants, as well as meetings with local contractors to determine feasibility based on material availability and trucking. As a result, a robust and resilient construction safety phasing plan was developed following FAA guidelines. The plan called for about two-thirds of the construction work to be completed at night, and the rest during the day under a displaced threshold. Night construction was limited to midnight to 5 am to avoid disturbance with air carrier operations.
The runway safety area along the length of the runway did not meet compliance because it was too flat. As a result of a new grading design that involved excavation of nearly 100,000 cubic yards of dirt, the drainage system also required major modifications. A new drainage model was developed to facilitate design of a new controlled drainage system for the runway. The proposed drainage system was designed to connect to the existing outfalls which posed additional challenges and limitations, such as utility conflicts and construction phasing.
The project scope also included FAA owned infrastructure including a MALSR bar modification and a relocation of a SAWS facility. The electrical scope of work also included runway surface sensors, land and hold short lighting, in pavement lights and threshold lights.