Smithfield Street Bridge

Smithfield Street Bridge
Smithfield Street Bridge
Coordinates	40°26′5″N 80°0′8″W / 40.43472°N 80.00222°W / 40.43472; -80.00222
Carries	4 lanes of roadway 2 pedestrian walkways
Crosses	Monongahela River
Locale	Pittsburgh, Pennsylvania
Characteristics
Design	Lenticular truss bridge
Total length	1,184 feet (361 m)
Longest span	2 spans, 360 feet (110 m) each
Clearance below	42.5 feet (13.0 m)
History
Opened	March 19, 1883
Smithfield Street Bridge
U.S. National Register of Historic Places
U.S. National Historic Landmark
City of Pittsburgh Historic Structure
Pittsburgh Landmark – PHLF
Area	1 acre (0.40 ha)
Architect	Gustav Lindenthal
Architectural style	Romanesque, Pauli truss
NRHP reference No.	74001745[1]
Significant dates
Added to NRHP	March 21, 1974
Designated NHL	May 11, 1976[4]
Designated CPHS	February 22, 1977[2]
Designated PHLF	1970[3]
Location

The Smithfield Street Bridge is a lenticular truss bridge crossing the Monongahela River in Pittsburgh, Pennsylvania, USA.

The bridge was designed by Gustav Lindenthal, the engineer who later designed the Hell Gate Bridge in New York City. The Smithfield Street Bridge was built between 1881 and 1883, opening for traffic on March 19, 1883.^{[citation needed]} It was widened in 1889 and widened again in 1911. The bridge has been designated a National Historic Civil Engineering Landmark, a National Historic Landmark, and has a Historic Landmark Plaque from the Pittsburgh History and Landmarks Foundation.