Farmington and Hook Roads over the NYS Thruway (I-90)
The driving force behind selecting the SpaanSpan® bridge system for two, 2-span bridges over the New York State Thruway near Rochester, New York was to increase the under clearance to 5.0m. High performance concrete with pre-tensioned deck slabs and a post-tensioned finished structure provided the owner with a low maintenance, highly durable precast concrete solution. The precast components for each span were erected in two days and the entire bridge was replaced in three months.
Two spans at 100ft each combined with a structural depth of less than 21-in minimized the need to significantly alter the approaches to the bridge.
The architectural details of the ashlar stone formliner finish were carried from the precast bridge units to the abutments and center pier.