Downtown Pittsburgh, colloquially referred to as the Golden Triangle, and officially the Central Business District, is the urban downtown center of Pittsburgh, Pennsylvania, United States. It is located at the confluence of the Allegheny River and the Monongahela River whose joining forms the Ohio River. The triangle is bounded by the two rivers.
A cantilever bridge is a bridge built using structures that project horizontally into space, supported on only one end. For small footbridges, the cantilevers may be simple beams; however, large cantilever bridges designed to handle road or rail traffic use trusses built from structural steel, or box girders built from prestressed concrete.
A truss bridge is a bridge whose load-bearing superstructure is composed of a truss, a structure of connected elements, usually forming triangular units. The connected elements, typically straight, may be stressed from tension, compression, or sometimes both in response to dynamic loads. There are several types of truss bridges, including some with simple designs that were among the first bridges designed in the 19th and early 20th centuries. A truss bridge is economical to construct primarily because it uses materials efficiently.
The Astoria–Megler Bridge is a steel cantilever through-truss bridge in the Pacific Northwest region of the United States that spans the lower Columbia River. It carries a section of U.S. Route 101 from Astoria, Oregon, to Point Ellice near Megler, Washington. Opened in 1966, it is the longest continuous truss bridge in North America.
Highland Park is a neighborhood in the northeastern part of Pittsburgh, Pennsylvania. Highland Park, the neighborhood, fully encompasses the park with the same name.
The Roberto Clemente Bridge, also known as the Sixth Street Bridge, spans the Allegheny River in downtown Pittsburgh, Pennsylvania, United States.
Morningside is a neighborhood in Pittsburgh, Pennsylvania's East End. It has two Zip Codes, 15201 and 15206.
The Walkway over the Hudson is a steel cantilever bridge spanning the Hudson River between Poughkeepsie, New York, on the east bank and Highland, New York, on the west bank. Built as a double track railroad bridge, it was completed on January 1, 1889, and formed part of the Maybrook Railroad Line of the New York, New Haven and Hartford Railroad.
The Sewickley Bridge is a steel continuous truss bridge spanning the Ohio River between Sewickley and Moon Township, Pennsylvania, carrying State Route 4025 and the Orange Belt. It was built by American Bridge Company and opened on October 21, 1981.
The West End Bridge is a steel tied-arch bridge over the Ohio River in Pittsburgh, Pennsylvania, approximately 1 mile (1.6 km) below the confluence of the Allegheny and Monongahela Rivers. It connects the West End to the Chateau neighborhood on the North Side of Pittsburgh.
Pittsburgh Railways was one of the predecessors of Pittsburgh Regional Transit. It had 666 PCC cars, the third largest fleet in North America. It had 68 streetcar routes, of which only three are used by the Port Authority as light rail routes. With the Port Authority's Transit Development Plan, many route names will be changed to its original, such as the 41D Brookline becoming the 39 Brookline. Many of the streetcar routes have been remembered in the route names of many Port Authority buses.
Sixmile Island is an alluvial island in the Allegheny River in Allegheny County in the U.S. state of Pennsylvania. Despite being shown as part of Sharpsburg borough on some maps, including from the Pennsylvania Department of Transportation, it is part of O'Hara Township. It is the location of Nancy Werner Park and lies across the river from Pittsburgh.
Maryland Route 34 is a state highway in the U.S. state of Maryland. Known for most of its length as Shepherdstown Pike, the state highway begins at the West Virginia state line at the Potomac River, where the highway continues south as West Virginia Route 480 through Shepherdstown. The state highway runs 9.95 miles (16.01 km) east to U.S. Route 40 Alternate in Boonsboro. MD 34 is the main east–west highway of southern Washington County, connecting Shepherdstown and Boonsboro with Sharpsburg and Keedysville. The state highway, which was preceded by the Boonsboro and Sharpstown Turnpike, was constructed as a modern highway in the late 1910s and early 1920s. MD 34's bypass of Keedysville opened around 1960. The western end of the state highway has had three bridges. A 19th-century bridge was destroyed in a 1936 flood and replaced by the James Rumsey Bridge in 1939. The present bridge, also named for James Rumsey, opened in 2005.
The Senator Robert D. Fleming Bridge, commonly known as the 62nd Street Bridge, is a truss bridge that carries Pennsylvania Route 8 across the Allegheny River between the Pittsburgh neighborhoods of Morningside and Lawrenceville and Sharpsburg, Pennsylvania.
The Highland Park Bridge is a truss bridge that carries vehicular traffic across the Allegheny River between the Pittsburgh neighborhood of Highland Park and the suburb of Aspinwall.
The Albert Gallatin Memorial Bridge was a cantilever truss bridge that carried vehicular traffic across the Monongahela River in the southwestern part of the U.S. state of Pennsylvania. Built in 1930 to replace a ferry, it connected Point Marion in Fayette County and Dunkard Township in Greene County. It was named in honor of U.S. Senator, and longtime U.S. Treasury Secretary and diplomat Albert Gallatin, whose Friendship Hill homestead is nearby.
The Jerome Street Bridge is an arch bridge across the Youghiogheny River connecting the east and west banks of the Pittsburgh industrial suburb of McKeesport, Pennsylvania. The bridge is a rare steel crescent arch bridge. A crescent arch is formed when the intrados and extrados of the arch are not parallel, but instead form two different curves beginning and ending together. The ribs form a truss at the top of the arch and join together in a solid rib at each end. A crescent arch is a two-hinged arch, the ribs are further apart where the bending moment is greatest and close together at each hinge where it is minimized.
The South Street Bridge is a historic Pratt truss bridge, carrying Vermont Route 31 across the Poultney River just south of the village center of Poultney, Vermont. Built in 1923, it is one of a small number of surviving Pratt through trusses in the state, and one of just three that survives from the period before the state's devastating 1927 floods. It was listed on the National Register of Historic Places in 2009 as Bridge 4.
The Winooski Street Bridge is a historic bridge carrying Winooski Street across the Winooski River between Duxbury and Waterbury, Vermont. Built in 1928, it is a Parker through truss, one of only two of this type on the Winooski River and an increasingly rare bridge type in the state. It was listed on the National Register of Historic Places in 2006 as Bridge 31.
The Centre Covered Bridge, also known as the Sanborn Covered Bridge, is a historic covered bridge, spanning the Passumpsic River next to U.S. Route 5 (US 5) north of the village of Lyndonville, Vermont. Built in 1872, it was moved to its present location and taken out of service in 1960. The bridge was located on Center Street between Lyndonville and Lyndon Center. It is one of three surviving Paddle-Ford truss bridges in Vermont. It was listed on the National Register of Historic Places in 1974.
