EDZ Irigary Bridge

The bridge was built in 1913 at Sussex, Wyoming, and moved in 1963 to Irigary Road.

A Pratt truss has vertical members and diagonals that slope down towards the center.

While the Pratt truss has braced diagonal members in all panels, the Pennsylvania truss has half-length struts or ties in the top, bottom, or both parts of the panels.

[2] On February 4, 1913, Johnson County awarded the contract for this bridge over the Powder River at Sussex, Wyoming, about 20 miles (32 km) east of Kaycee.

The old steel bridge was moved by the Etlin Construction Company of Casper, Wyoming.