Monongahela City Bridge
Encyclopedia
The Monongahela City Bridge spans the Monongahela River
Monongahela River
The Monongahela River is a river on the Allegheny Plateau in north-central West Virginia and southwestern Pennsylvania in the United States...

 from the City of Monongahela
Monongahela, Pennsylvania
Monongahela, colloquially called "Mon City," is a Third Class City in Washington County, Pennsylvania, United States and is part of the Pittsburgh Metro Area, located approximately south of the city proper. The population was 4,761 at the 2000 census...

 in Washington County, Pennsylvania
Washington County, Pennsylvania
-Government and politics:As of November 2008, there are 152,534 registered voters in Washington County .* Democratic: 89,027 * Republican: 49,025 * Other Parties: 14,482...

 to Forward Township
Forward Township, Allegheny County, Pennsylvania
Forward Township is a township in Allegheny County, Pennsylvania, United States. The population was 3,376 at the 2010 census. The township is named after Walter Forward, U.S...

 in Allegheny County, Pennsylvania
Allegheny County, Pennsylvania
Allegheny County is a county in the southwestern part of the U.S. state of Pennsylvania. As of the 2010 census, the population was 1,223,348; making it the second most populous county in Pennsylvania, following Philadelphia County. The county seat is Pittsburgh...

. It was constructed to replace a bridge
Bridge
A bridge is a structure built to span physical obstacles such as a body of water, valley, or road, for the purpose of providing passage over the obstacle...

 which was 1/4 of a mile north of its location at First and Main Streets, and it opened to traffic in 1990.

The bridge marks the end of Monongahela's Main Street
Main Street
Main Street is the metonym for a generic street name of the primary retail street of a village, town, or small city in many parts of the world...

 and the separation of State Route 136 from State Routes 88 and 837. This is the fourth bridge to cross this segment of the river. The 1836 Williamsport Bridge was a wooden structure that served Monongahela while the town was under its original name. After this bridge was consumed in a fire, a four-frame truss bridge was constructed in 1884. This was soon replaced by a three-frame bridge in 1910, which stood until the erection of the current structure in 1990.
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