The 1902 Highland Park Bridge was a cantilever through truss that carried two streetcar tracks across the Allegheny River

Allegheny River

The Allegheny River is a principal tributary of the Ohio River; it is located in the Eastern United States. The Allegheny River joins with the Monongahela River to form the Ohio River at the "Point" of Point State Park in Downtown Pittsburgh, Pennsylvania...

 and Sixmile Island between the Pittsburgh neighborhood of Highland Park

Highland Park (Pittsburgh)

Highland Park is both a large municipal park and a racially diverse, mostly residential neighborhood in the northeastern part of Pittsburgh, Pennsylvania.The neighborhood has 6,749 residents according to the 2000 United States Census...

 and Sharpsburg, Pennsylvania

Sharpsburg, Pennsylvania

Sharpsburg is a borough in Allegheny County, Pennsylvania, northeast of Pittsburgh, along the Allegheny River. In the past, it had a rolling mill, foundries, machine shops, and manufacturers of varnish, brick, glass, lumber products, wire, hair, felt, and lubricating oil. In 1900, 6,842 people...

. It was replaced by the Highland Park Bridge

Highland Park Bridge

The Highland Park Bridge is a truss bridge that carries vehicular traffic across the Allegheny River between the Pittsburgh neighborhood of Highland Park and the suburb of Aspinwall...

in 1938.

Location

The bridge was in two sections, with the cantilever on the Pittsburgh side of Sixmile Island and a truss bridge on the Sharpsburg side. It was situated 400 feet (121.9 m) downstream from the 1938 Highland Park bridge, at the then downstream end of the island. However, contemporary maps and pictures imply that the island has moved almost its entire length downstream, making the bridge location the current (2010) upstream end of the island.