Tunkhannock Viaduct
Tunkhannock Creek Viaduct | |
|---|---|
A Steamtown National Historic Site excursion train crosses Tunkhannock Viaduct. | |
| Coordinates | 41°37′20″N 75°46′38″W / 41.6222°N 75.7773°W |
| Carries | railroad traffic |
| Crosses | Tunkhannock Creek |
| Locale | Nicholson, Pennsylvania, U.S. |
| Characteristics | |
| Design | Deck arch bridge |
| Material | Concrete |
| Total length | 2,375 feet (723.9 m) |
| Longest span | 180 feet (54.9 m) each span |
| No. of spans | 10 (11 piers) |
| Clearance below | 240 feet (73.2 m) |
| Rail characteristics | |
| No. of tracks | 2 |
| 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 | Abraham Burton Cohen |
| Construction start | May 1912 |
| Opened | November 6, 1915 |
Tunkhannock Creek Viaduct | |
Pennsylvania state historical marker | |
Location in Pennsylvania | |
| Coordinates | 41°37′20″N 75°46′38″W / 41.6222°N 75.7773°W |
| Area | 3 acres (1.2 ha) |
| Built | 1912-1915 |
| NRHP reference No. | 77001203 |
| Significant dates | |
| Added to NRHP | April 11, 1977 |
| Designated No parameter | September 16, 1995 |
| Location | |
Interactive map of Tunkhannock Creek Viaduct | |
Tunkhannock Creek Viaduct (also known as the Nicholson Bridge and the Tunkhannock Viaduct) is a concrete deck arch bridge on the Nicholson Cutoff rail line segment of the Norfolk Southern Railway's Sunbury Line that spans Tunkhannock Creek in Nicholson, Pennsylvania.
Opened by the Delaware, Lackawanna and Western Railroad (DL&W) in 1915, the bridge is used daily for regular through freight service.
The bridge measures 2,375 feet (724 m) long and towers 240 feet (73.15 m) above the creek bed; it stands 300 feet (91.44 m) above bedrock. It was the largest concrete structure in the world at its completion; a half-century later, it still merited "the title of largest concrete bridge in America, if not the world".
In 1975, the American Society of Civil Engineers designated the bridge as a National Historic Civil Engineering Landmark. The bridge was listed on the National Register of Historic Places on May 3, 1977.