SEDA-COG Joint Rail Authority, Blair County
The purpose of rehabilitating these bridges was to raise the thru-girder railroad Bridge 0.24) over 10th Street in Tyrone Borough. The bridge was frequently impacted by large trucks due to its height. The project was designed to provide a roadway clearance of 14’-8 ½” to eliminate the need for a clearance posting and prevent the frequent truck impacts. This project includes the replacement of deteriorated steel components, replacement of the timber tie deck, and raising of Bridge 0.24. To accommodate the raise in railroad alignment, the existing masonry retaining walls along Washington Avenue were modified and precast concrete parapet segments were installed along the top of the wall. Additionally, Bridge 0.05 work included replacing the timber tie deck, placement of scour protection at Piers 1 and 2, and replacement of pedestrian walkway canopies that protect a pedestrian bridge owned by the County of Blair.
The challenge for this project was the need to complete the project within a 14-calendar day planned track outage window, with minor work completed at other times between trains. All major work was completed by the contractor in the 14-calendar day window.
Keller Engineers has been an extremely valuable asset for us in the development/construction of our store sites by providing accurate and timely structural and site development drawings and answers to related questions. Their response and turn-around time to the Sheetz Store Development Department has been outstanding. We have no hesitation in turning to Keller Engineers for our store structural and site development needs. Joe S. Sheetz, Executive Vice President, Finance & Store Development Sheetz Corporation