Genesee Arch Bridge, Letchworth State Park

The standing point is a viewpoint mapped on OpenStreetMap beside the Gorge Trail (Trail 1 on the official park map), about 180 m (590 ft) north of Norfolk Southern's Genesee Arch Bridge, looking south-southwest across the Genesee River gorge. From here the whole 963-foot (293.5 m) single-track span is in view, and the Upper Falls of the Genesee drop about 125 m (410 ft) in front of you, directly beneath the arch. The two abutments sit at bearings of roughly 159 and 236 degrees, so the bridge fills a wide arc of the southern horizon.

You reach it from the small parking area at the south end of the Gorge Trail, beside the bridge's west approach on Park Road, just inside the Portageville Entrance. The official 2025 park map marks both the parking area and the trailhead there. The walk along the trail to the viewpoint is approximately 240 m (800 ft) and crosses a short footbridge over a side ravine.

This is a waiting spot, not a busy main line. Norfolk Southern publishes no timetable for this freight route and no current daily train count was found for it, so plan to spend time at the rail and treat a train as a bonus rather than a certainty. The same trail continues north past further mapped viewpoints at about 270 m (890 ft) and 340 m (1,120 ft) from the track, which show the bridge behind the falls from farther back.

The better-known overlooks are much farther away. The Middle Falls viewpoints near the Glen Iris Inn sit about 830 to 890 m (roughly half a mile) from the bridge, and Inspiration Point is 1.6 km (1 mile) downstream: its OpenStreetMap viewpoint is described as facing the Upper and Middle Falls at a bearing of 210 degrees, which is also the direction of the bridge, so the span can only be a distant element of the gorge from there.

The bridge itself is off limits. NYSDOT's environmental review for the replacement records that park visitors used to trespass on the old viaduct to look at the falls, and states that pedestrian access is prohibited on the new bridge.

New York State Parks calls Letchworth the "Grand Canyon of the East": the Genesee River runs through the park over three major waterfalls between cliffs that reach 600 feet (183 m) in places. The railroad crosses at the southern, upstream end of that gorge, where Norfolk Southern describes the chasm under the bridge as 235 feet (72 m) deep.

The Genesee Arch Bridge is a steel arch whose main span measures 483 feet (147.2 m), with three 80-foot (24 m) girder approach spans at each end, according to its builder, American Bridge Company. The single track runs 235 feet (72 m) above the river. It replaced a viaduct whose supports stood in the gorge itself, and NYSDOT's environmental study expected the arch design to enhance views of the river by removing those supports. From the Gorge Trail the result is an open arch framing the Upper Falls.

The old iron viaduct stood about 75 feet (23 m) north of the new alignment, on the downstream side, directly over the falls, for more than 140 years. Its last pieces were demolished in March 2018, so today the falls, the arch and the wooded rim make up the whole scene.

From the viewpoint you look south-southwest, upstream toward the Portageville end of the park. The rim around the bridge is wooded, and parts of the Gorge Trail near the bridge are lined with stone walls built in the style of the park's historic walls; NYSDOT's study called for stone salvaged during construction to be reused there. Park Road runs a short distance behind the trail near the parking area, and the Mary Jemison Trail (Trail 2) leaves from the same corner of the park near the bridge's west abutment.

Railroads have crossed the Genesee here since 1852. The Erie Railroad began a timber trestle on July 1, 1851, and opened it on August 14, 1852; Wikipedia records it as then the longest and tallest wooden bridge in the world. It was destroyed by fire in the early morning of May 6, 1875.

The Erie rebuilt in wrought iron the same year, and the new viaduct was carrying trains again by the end of July 1875. NYSDOT's environmental study describes it as a single-track truss structure spanning approximately 819 feet (250 m), 245 feet (75 m) above the gorge. It served several owners, from the Erie Lackawanna to Conrail, which took over the Southern Tier route in the 1970s; Norfolk Southern acquired the bridge and the route from Conrail in 1999.

By the 2000s the iron bridge was a bottleneck. The 2009 New York State Rail Plan identified its weight and speed restrictions as one of the top ten rail bottlenecks in the state, and Norfolk Southern had to hold trains to 10 mph (16 km/h) and car weights to 13,000 pounds below the industry standard. According to a 2011 Buffalo News report cited by Wikipedia, Norfolk Southern offered the old structure to the state as a viewing platform for the Upper Falls, and the state declined for lack of funding.

Norfolk Southern, NYSDOT and the state parks office broke ground on the replacement on October 28, 2015. Modjeski and Masters designed it for Norfolk Southern, and American Bridge Company built it on a parallel alignment 75 feet (23 m) south of the old bridge, so trains kept running during construction. The first train crossed on December 11, 2017, and the last pieces of the 1875 bridge were demolished on March 20, 2018.

The project cost $75 million: $59.5 million from Norfolk Southern and $15.5 million provided through New York State. At the dedication on May 24, 2018, Norfolk Southern announced the name Genesee Arch Bridge, the winner of a naming vote on social media, and said it had preserved portions of the old bridge for use in historical exhibits.

The Upper Falls sit about 60 m (200 ft) downstream of the track, so the waterfall and a Class I freight bridge share a single frame from a public trail, 235 feet (72 m) above the river.

The structure itself is unusual. American Bridge Company calls it the "first true arch built for the railroad industry since the 1940's", and Norfolk Southern's vice president of engineering said at the dedication that "only a few arch bridges of this type have been built by the rail industry in the past century". NYSDOT's environmental review, while acknowledging that removing the 1875 viaduct was a loss for a bridge that appeared on park memorabilia, anticipated that the new bridge would in time become an iconic visual resource of Letchworth in its own right.

The name is recent. The crossing was known as the Portageville Bridge until May 24, 2018, when Norfolk Southern announced that "Genesee Arch Bridge" had won a naming vote on social media. New York State Parks now uses that name on its own pages, listing the Portageville Entrance as the access to the Upper Falls area and the Genesee Arch Bridge.

The site also shows how a freight main line and a heavily visited state park were fitted together. Under the alternative that was built, NYSDOT's study provided for moving the track 75 feet (23 m) south, relocating a section of Park Road and the small parking area near the bridge, and moving the trailheads of the Gorge Trail and the Mary Jemison Trail from railroad property onto park land. The result is a railfan viewpoint reached by an ordinary park trail rather than from railroad property.

Finally, the same crossing has now carried trains on three successive structures since 1852: timber, then iron, then steel.