Norfolk Southern 4041 leads an intermodal through Horseshoe Curve at Altoona, Pennsylvania as it heads west on the NS Pittsburgh Line on a beautiful fall afternoon, on November 3rd, 2021.
According to Wikipedia: Horseshoe Curve is a three-track (though originally four) railroad curve on Norfolk Southern Railway’s Pittsburgh Line in Blair County, Pennsylvania. The curve itself is about 2,375 feet long and 1,300 feet in diameter; it was completed in 1854 by the Pennsylvania Railroad as a way to lessen the grade to the summit of the Allegheny Mountains. It eventually replaced the time-consuming Allegheny Portage Railroad, the only other route across the mountains for large vehicles. Because of the Allegheny Mountains geoform, in and around Altoona – and almost perfectly at “The Curve” – westbound traffic goes south and eastbound traffic goes north. So, in terms of final destination, the southern side of “The Curve” is where trains leave to go west, and vice versa.
The rail line has been important since its opening, and during World War II the Curve was targeted by Nazi Germany in 1942 as part of Operation Pastorius. The Curve was later owned and used by Pennsylvania Railroad successors Penn Central, Conrail, and Norfolk Southern. Horseshoe Curve was added to the National Register of Historic Places and designated a National Historic Landmark in 1966, and it became a National Historic Civil Engineering Landmark in 2004.
Horseshoe Curve has long been a tourist attraction; a trackside observation park was completed in 1879. The Park was renovated and a visitor center built in the early 1990s. The Railroaders Memorial Museum in Altoona manages the center, which has exhibits pertaining to the curve.
Tech Info: DJI Mavic Air 2S Drone, RAW, 22mm, f/2.8, 1/500, ISO 100 -1 stop.