Portage Viaduct | |
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Coordinates | 42°34′40″N 78°02′58″W / 42.5778°N 78.0495°W |
Carries | Norfolk Southern railroad traffic |
Crosses | Genesee River |
Locale | Portageville, New York, USA |
Characteristics | |
Design | Deck arch bridge |
Material | Steel |
Total length | 963 feet (293.5 m) |
Longest span | 483 feet (147.2 m) each span |
No. of spans | 1 (2 piers) |
Clearance below | 240 feet (73.2 m) |
Rail characteristics | |
No. of tracks | 1 |
Track gauge | 4 ft 8+1⁄2 in (1,435 mm) standard gauge |
Structure gauge | AAR for the width only overhead open or clear |
History | |
Designer | Modjeski & Masters, Inc |
Constructed by | American Bridge Company |
Construction start | October 27, 2015 |
Opened | December 11, 2017 |
Location | |
The Portage Viaduct, officially known as the Genesee Arch Bridge and also known as the Portage Bridge, is a steel arch railroad bridge over the Genesee River in Letchworth State Park, Livingston County, New York. It is the third bridge at this location: the original timber bridge burned in 1875 and was replaced by an iron bridge, which lasted until it was replaced by the current steel bridge in 2017. It carries the Southern Tier Line of Norfolk Southern Railway.[1]