The Camp Clarke Bridge Site in Morrill County, Nebraska, near Bridgeport dates from 1875.

[1] It is the location of a toll bridge built in 1875 by entrepreneur Henry T. Clarke, who provided a crossing over the North Platte River for what became the Sidney-Black Hills Trail.

The trail provided access for freight wagons, stagecoaches and other vehicles headed to and from the Dakota gold fields, from the Union Pacific railway trailhead at Fort Sidney, Nebraska.

Historic photos show a wooden truss bridge built on pilings in the soft ground of the river.

It was "a massive structure... Two thousand feet in length with a solid six to one truss span."