The ELS Bridge over Big Wind River is a pony truss bridge located near Dubois, Wyoming, which carries Fremont County Road CN10-21 across the Big Wind River.

Its design is uncommon and merges a kingpost truss with an arched chord.

The materials used to build the bridge are also unusual and were likely salvaged; for instance, the arches are made from tunnel sets.

[2] The bridge was added to the National Register of Historic Places on February 22, 1985.

This article about a property in Wyoming on the National Register of Historic Places is a stub.