Portageville Arch Railway Bridge

Client: Canam Bridge
Capex: $58 Million
Location: Portageville, New York
Completion Date: 2015-2017

Spanning the Genessee River in New York, this new bridge is a 483-foot arch with three, 80-foot girder spans on either end for a total length of 963 feet. The single track bridge has a ballast-filled concrete deck, and sits 235 feet above the rushing water below
Scope of Work:
  • Provided structural steel modeling and detailing services for the Portageville Railway Arch in Letchworth State Park in New York
  • The Norfolk Southern railway bridge has a single track and replaces the existing bridge built in 1875
Project Stats:
  • 483-foot arch span with three 80-foot approach spans
  • It stands more than 235-feet above the Genesee River
  • Now allows industry standard 286,000-lb cars, up from the current 273,000-pound limit
  • Trains can also move across the bridge at 30 mph, up from 10 mph on the old span
Highlights & Challenges:
  • This bridge was modeled and detailed with minimal RFI’s due to detailed design drawings by bridge engineering firm Modjeski and Masters.
Project Awards & Commendations:
  • Winner of the NSBA Prize Bridge Awards 2020 for the major span category
  • “Modjeski & Masters told Jon (with American Bridge) that they were very impressed & pleased with the quality of the shop drawings”