Spectra provided preliminary and final design services for the replacement of Pony Farm Road Bridge over the Canadian Pacific Railroad.
The existing three-span structure was a concrete and steel thru girder bridge, approximately 120 feet long, built in 1933. The structure was in serious disrepair and was closed to traffic.
Spectra designed a new bridge structure consisting of a single conspan precast concrete arch bridge, concrete precast and cast-in-place retaining walls, all of which were designed to provide the required clearance for current and future rail traffic. Spectra completed highway design including improvements to the vertical and horizontal alignments within the constraints of the existing infrastructure.
A topographic survey and foundation analysis were all performed. Spectra provided coordination with the railroad for all their present and future needs. Specifications and a cost estimate were provided.
Spectra was responsible for construction administration and inspection services.