The Glenwood Bridge is a
cantilever bridge
A cantilever bridge is a bridge built using structures that project horizontally into space, supported on only one end (called cantilevers). For small footbridges, the cantilevers may be simple beam (structure), beams; however, large cantilever ...
in
Pittsburgh, Pennsylvania
Pittsburgh ( ) is a city in Allegheny County, Pennsylvania, United States, and its county seat. It is the List of municipalities in Pennsylvania#Municipalities, second-most populous city in Pennsylvania (after Philadelphia) and the List of Un ...
, which carries
Pennsylvania Route 885 over the
Monongahela River
The Monongahela River ( , ), sometimes referred to locally as the Mon (), is a U.S. Geological Survey. National Hydrography Dataset high-resolution flowline dataThe National Map accessed August 15, 2011 river on the Allegheny Plateau in nor ...
. It started construction on June 3, 1958. It was completed in 1966 to replace an old, decayed, unsafe iron bridge built in 1894, which carried
Pittsburgh Railways
Pittsburgh Railways was one of the predecessors of Pittsburgh Regional Transit. It had 666 PCC streetcar, PCC cars, the third largest fleet in North America (after Toronto Transit Commission, Toronto (745) and Chicago Surface Lines, Chicago (683) ...
streetcar tracks and vehicle traffic on a wooden deck.
History
Glenwood bridge (1894)
The original bridge was built by the Penn Bridge Company of Beaver Falls and carried trolley tracks between Pittsburgh and Homestead. It was later paved with wood to allow vehicle traffic to share the crossing. Permission was given by the Public Utilities Commission on November 8, 1962, for Pittsburgh Railways to convert trolley routes ''55 East Pittsburgh via Homestead and Braddock'' and ''98 Glassport'' to bus service, as the replacement bridge planned did not incorporate trolley tracks. Trolley service 55 across the bridge ended on July 4, 1964.
South interchange
At the southern end of the bridge is an expressway-style interchange with
Pennsylvania Route 837. This interchange was built for a spur of the canceled "East-West Expressway", which was at the proposal stage when the bridge was built.
See also
*
List of crossings of the Monongahela River
References
{{Pittsburgh Bridges
Bridges in Pittsburgh
Bridges over the Monongahela River
Bridges completed in 1966
Road bridges in Pennsylvania
Cantilever bridges in the United States
Metal bridges in the United States