Lick Run is a 6.7 miles (10.8 km) urban stream

Urban stream

An urban stream is a formerly natural waterway that flows through a heavily populated area. Urban streams are often significantly polluted, due to urban runoff and combined sewer outflows....

 in southern 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...

, a tributary of Peters Creek

Peters Creek (Pennsylvania)

Peters Creek is a tributary of the Monongahela River and part of the Mississippi River watershed, flowing through southwestern Pennsylvania in the United States....

. The former Lick Run coal mine of the Pittsburgh Coal Company

Pittsburgh Coal Company

The Pittsburgh Coal Company was a bituminous coal mining company, controlled by the Mellon family. It later merged with Consolidation Coal Company, controlled by the Rockefeller family.-Coal Mines:...

 had its mouth near the stream, along the B&O Railroad line.

Several stone arch bridges cross the stream. One carries Brownsville Road

Brownsville Road

Brownsville Road is a road in Allegheny County, Pennsylvania. It has had several names over its history, and was also known at the Red Stone Road and the Brownsville Plank Road, or Southern Avenue.-Pre-history to eighteenth century:...

 over the stream near Broughton. A National Landmark stone arch bridge

Bridge in Jefferson Borough

The Bridge in Jefferson Borough, which carries Cochran's Mill Road over Lick Run, is a single arch stone bridge in Allegheny County, Pennsylvania. It is located near the birthplace of Nellie Bly.-References:...

carries Cochran Mill Road over the stream further downstream.