[1] It begins in a swamp (formerly a lake, dammed out) near Newtown Square, Pennsylvania along which several mills were established in the 19th century.

Right afterward it crosses under Pennsylvania Route 29 and winds one and a half miles (2.4 km) downstream until it hits the hamlet of Crum Creek.

The trestle is located in the Crum Woods, 200 acres (81 ha) of forest surrounding the creek that constitutes part of the campus of Swarthmore College.

This tract, one of the largest patches of woodland remaining in Delaware County, is managed by the college's Scott Arboretum.

A stone bridge carrying the highway was erected in 1924 with a 70-foot-tall (21 m) arch commemorating the 282 men and 2 women from Delaware County who died in World War I.