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Bridges of Pittsburgh facts for kids

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Pittsburgh, Pennsylvania
Seventeen of Pittsburgh's bridges are visible in this aerial photo.

The Bridges of Pittsburgh play an important role in the city's transportation system. Without bridges, the Pittsburgh region would be a series of fragmented valleys, hillsides, river plains, and isolated communities.

A 2006 study determined that Pittsburgh has 446 bridges, and with its proximity to three major rivers and countless hills and ravines, Pittsburgh is known as "The City of Bridges". The city of Pittsburgh and Allegheny County are the largest owners of great bridges in the country, in proper proportion to their size, with the possible exception of the City of New York, which is built on an island and surrounded by large bodies of water.

According to a 2011 study by Transportation for America, 1,194 bridges in the Pittsburgh area—or 30.4%—were deficient, the highest proportion in the nation.


Pittsburgh's first river bridges, made of wood and long since replaced, opened in 1818 at Smithfield Street and 1819 at Sixth Street (then St. Clair Street). The city's oldest in-service bridge is the current Smithfield Street Bridge, which opened in 1883; it was designated a National Historic Landmark in 1976. Pittsburgh waged a massive road and bridge building campaign from 1924 to 1940; most of Pittsburgh's oldest major bridges date from this period. The coming of the Interstate Highway System triggered more construction in the second half of the twentieth century, as vehicular speed and throughput requirements increased. The result of more than 100 years of bridge building is a collection of most of the major types of bridge (suspension, cantilever, arch, etc.), mostly built from locally produced steel, including about forty river spans.

Many of the bridges in the Downtown area are colored Aztec Gold, either constructed as such or painted afterward, to match the city's official colors of black and gold. A few old and out-of-service bridges, such as the Hot Metal Bridge (which stood dormant until reopening as a passenger bridge in the year 2000), are exceptions to this rule.

Major bridges

This table lists all bridges crossing the Allegheny, Monongahela and Ohio rivers in the City of Pittsburgh limits.

Crossing Carries River Image Coordinates
Fort Pitt Bridge
I-376 / US 19 Truck / US 22 / US 30
Monongahela 40°26′20″N 80°00′40″W / 40.4388°N 80.0111°W / 40.4388; -80.0111
Smithfield Street Bridge Smithfield Street Monongahela 40°26′06″N 80°00′07″W / 40.4351°N 80.0020°W / 40.4351; -80.0020
Panhandle Bridge Port Authority T Light Rail Line Monongahela 40°25′59″N 79°59′53″W / 40.43306°N 79.99806°W / 40.43306; -79.99806
Liberty Bridge Connects Liberty Tunnel to Downtown Pittsburgh Monongahela 40°25′58″N 79°59′48″W / 40.4328°N 79.9968°W / 40.4328; -79.9968
South Tenth Street Bridge South Tenth Street Monongahela 40°25′57″N 79°59′21″W / 40.43250°N 79.98917°W / 40.43250; -79.98917
Birmingham Bridge Connects Fifth and Forbes avenues to East Carson Street Monongahela 40°26′00″N 79°58′25″W / 40.433361°N 79.973499°W / 40.433361; -79.973499
Hot Metal Bridge Great Allegheny Passage/Three Rivers Heritage Trail,

Hot Metal Street

Glenwood Bridge PA-885.svg PA 885 Monongahela
Glenwood B&O Railroad Bridge Allegheny Valley Railroad Monongahela
Homestead Grays Bridge (Homestead High Level Bridge) Pittsburgh PA Blue Belt shield.svg Blue Belt Monongahela
Fort Duquesne Bridge I-279.svg Interstate 279 Allegheny 40°26′39″N 80°00′33″W / 40.4443°N 80.0093°W / 40.4443; -80.0093
Roberto Clemente Bridge 6th Street Allegheny 40°26′44″N 80°00′12″W / 40.4456°N 80.0033°W / 40.4456; -80.0033
Andy Warhol Bridge 7th Street Allegheny 40°26′46″N 80°00′05″W / 40.44611°N 80.00139°W / 40.44611; -80.00139
Rachel Carson Bridge 9th Street Allegheny 40°26′48″N 79°59′59″W / 40.4467°N 79.9998°W / 40.4467; -79.9998
Fort Wayne Railroad Bridge Allegheny Valley Railroad, Capitol Limited (Amtrak train), Norfolk Southern Railway Fort Wayne Line Allegheny 40°26′54″N 79°59′46″W / 40.4482°N 79.9962°W / 40.4482; -79.9962
Veterans Bridge I-579.svg Interstate 579 Allegheny 40°27′00″N 79°59′36″W / 40.4499°N 79.9934°W / 40.4499; -79.9934
David McCullough Bridge 16th Street Allegheny 40°27′06″N 79°59′27″W / 40.4517°N 79.9909°W / 40.4517; -79.9909
Herr's Island Railroad Bridge (West Penn Bridge)
(rails removed, crosses back channel only)
Three Rivers Heritage Trail Allegheny
30th Street Bridge (crosses back channel only) 30th Street Allegheny
William Raymond Prom Memorial Bridge 31st Street Allegheny 40°27′47″N 79°58′33″W / 40.4630°N 79.9758°W / 40.4630; -79.9758
33rd Street Railroad Bridge Allegheny Valley Railroad P&W Subdivision Allegheny 40°27′57″N 79°58′25″W / 40.4657°N 79.9736°W / 40.4657; -79.9736
Washington Crossing Bridge
(40th Street Bridge)
40th Street Allegheny 40°28′22″N 79°58′07″W / 40.4728°N 79.9686°W / 40.4728; -79.9686
Senator Robert D. Fleming Bridge
(62nd Street Bridge)
PA-8.svg PA Route 8 Allegheny 40°29′28″N 79°56′17″W / 40.4912°N 79.9381°W / 40.4912; -79.9381
Highland Park Bridge Pittsburgh PA Blue Belt shield.svg Blue Belt Allegheny 40°29′21″N 79°54′43″W / 40.4891°N 79.9120°W / 40.4891; -79.9120
Brilliant Branch Railroad Bridge Allegheny Valley Railroad Brilliant Branch Allegheny 40°29′12″N 79°54′19″W / 40.4866°N 79.9053°W / 40.4866; -79.9053
McKees Rocks Bridge PA QR 3104.svg SR 3104 / Blue Belt Ohio 40°28′38″N 80°02′54″W / 40.47722°N 80.04833°W / 40.47722; -80.04833
Ohio Connecting Railroad Bridge Norfolk Southern Railway Fort Wayne Line Ohio 40°27′46″N 80°02′35″W / 40.46278°N 80.04306°W / 40.46278; -80.04306
West End Bridge US 19.svg U.S. Route 19 Ohio

This table lists some other major bridges within the City of Pittsburgh limits.

Bridge Carries Over Image
Bloomfield Bridge Bloomfield Bridge PGH.jpg
Brilliant Cutoff Viaduct Pennsylvania Railroad Company Brilliant Cutoff Viaduct (Pittsburgh, PA).jpg
Charles Anderson Memorial Bridge Panther Hollow (7767440).jpg
Commercial Street Bridge Nine Mile Run, Commercial Street Commercial Street Bridge (721622931).jpg
Frazier Street Bridge I-376.svg Interstate 376 Oo IMG 20150429 174933 (24237416665) (2).jpg
Larimer Avenue Bridge Larimer Avenue PA-8.svg PA 8 (Washington Boulevard) General view to south, from Orphan Street. - Larimer Avenue Bridge, Spanning Washington Boulevard at Larimer Avenue (State Route 8), Pittsburgh, Allegheny County, PA HAER PA,2-PITBU,73-1.tif
Meadow Street Bridge Negley Run Boulevard Meadow street bridge (23610733163).jpg
Panther Hollow Bridge PantherHollow Bridge Pittsburgh.jpg
Schenley Bridge Schenley Bridge from South Oakland 3.jpg
Swinburne Bridge Green bridges (24237422535).jpg

Notable bridges

Fort Duquesne Bridge West End Overlook
Fort Duquesne Bridge
  • The Fort Pitt Bridge is a steel bowstring arch bridge that spans the Monongahela River near its confluence with the Allegheny River at the point. It carries Interstate 376 between the Fort Pitt Tunnel and Point State Park.
  • The Fort Duquesne Bridge is a steel tied arch bridge that spans the Allegheny River in Pittsburgh, Pennsylvania. It carries Pennsylvania Route 65 / Interstate 279 (North Shore Expressway), which runs through Downtown Pittsburgh's Golden Triangle towards Interstate 79.
  • The West End Bridge is a large steel arch bridge which crosses the Ohio River. It is the first bridge on the Ohio River heading toward the Mississippi River. The bridge carries U.S. Route 19.
  • The Liberty Bridge crosses over the Monongahela River, intersecting Interstate 579 at its southern terminus.
  • The Three Sisters are three parallel, nearly identical self-anchored suspension bridges that cross the Allegheny River at 6th, 7th, and 9th streets. The bridges have been recently renamed for prominent Pittsburgh residents: Roberto Clemente Bridge, Andy Warhol Bridge, and Rachel Carson Bridge.
  • The Smithfield Street Bridge is a lenticular truss bridge crossing the Monongahela River. Its two main lenticular spans make the bridge very recognizable. It is a National Historic Civil Engineering Landmark, according to a plaque on the bridge.
  • The George Westinghouse Bridge crosses 240 feet above Turtle Creek Valley in East Pittsburgh.
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