Gila County, US
The Black River Bridge near Carrizo, Arizona was funded in 1911 and built in 1912. It was listed on the National Register of Historic Places in 1988. It spans the Black River, bringing an army road, now Indian Route 9, over the river from Fort Apache to the railroad at the former town of Rice, Arizo
na (which is now within San Carlos, Arizona). Indian Route 9 is one of many Indian routes within Native American reservations in the U.S. The bridge, designated ADOT #3128, is owned by the U.S. Bureau of Indian Affairs. It crosses from the Fort Apache Reservation south into the San Carlos Reservation in Gila County, Arizona. It is a deck truss bridge which was fabricated by the Pittsburgh-Des Moines Steel Co. It has three Warren truss riveted steel spans, each 82.0 feet (25.0 m) in length, achieving a total length of 273.0 feet (83.2 m). The roadway is a concrete deck that is 18 feet (5.5 m) wide. The bridge has concrete abutments and wingwalls and solid concrete piers. It has a concrete deck over steel stringers. The original bridge on those piers was designed by Arizona Territorial Engineer G.B. Girand and was completed in 1912 as a timber/iron truss bridge for wagons, employing...
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