The Carl E. Stotz Memorial Little League Bridge, formerly known as the Market Street Bridge, carries approximately 27,700 vehicles a day on U.S. Route 15 over the West Branch Susquehanna River between Williamsport and South Williamsport in Lycoming County, Pennsylvania, in the United States.

In October 2007 the new northbound bridge over the river and the new "direct connect" single-point urban interchange with Interstate 180 was completed and opened to traffic.

It was built to replace the sixth Market Street Bridge, a steel deck structure which the Pennsylvania Department of Transportation originally intended to rehabilitate and widen.

It was owned by a private corporation, operated it as a toll bridge, and stood until March 17, 1865, when it was destroyed by a flood that left 90 percent of Williamsport underwater.

This came from the Susquehanna Boom, part of the lumbering industry that helped make Williamsport one of the wealthiest cities in the world during the late 1800s.

The fourth bridge was opened in 1890 at a cost of $38,000, and was purchased in 1891 by the Lycoming County commissioners for $113,700, who declared to be free of tolls.

The traffic lights controlling the new single-point urban interchange were activated the same day, and the last ramp, from the bridge to westbound I-180, opened by October 18.

)[5] The new Market Street Bridge was officially dedicated on October 18, 2007, at a ribbon-cutting ceremony with speeches by Mayor Mary B. Wolf of Williamsport, Lycoming County Commissioner Rebecca Burke, State Senator Roger A. Madigan, State Representative Steven W Capelli, and others.

In addition to the river, Carl E. Stotz Memorial Little League Bridge crosses Via Bella, the street parallel to the river, I-180, and the Lycoming Valley Railroad (LVRR) on the Williamsport side, and the Norfolk Southern Railway on the South Williamsport side.

The Court Street roundabout will be the site of a negative relief sculpture depicting scenes from the history of Williamsport and Lycoming County, and will serve as a "welcome portal" to the city.