Nine Mile Run Watershed

Nine Mile Run is a small stream that flows through Pittsburgh's East End. If you've ever driven through Wilkinsburg, Edgewood, Swissvale, or the east side of Squirrel Hill, you've driven over it. Of course, you don't need to cross a bridge to drive over Nine Mile Run because it is almost entirely underground.

Currently, Nine Mile Run is unhealthy, typical for an urban stream. This is a result of how little the stream has been valued historically. At the turn of the 20th century streams were often used to transport trash and sewage from homes, and most of Nine Mile Run was piped into underground culverts.

One-third of the stream was left above ground in Frick Park, emerging near Braddock Avenue and flowing 2.2 miles to the Monongahela River. This unique urban asset is located in a 6.5 square mile watershed that includes the boroughs of Edgewood, Swissvale, Wilkinsburg and part of the city of Pittsburgh. menos ↑