Rio Grande Bridge at San Juan Pueblo

The Rio Grande Bridge at San Juan Pueblo, crossing the Rio Grande near Alcalde, New Mexico, is a Parker pony truss bridge built in 1925. It was listed on the National Register of Historic Places in 1997.[1]

Rio Grande Bridge at San Juan Pueblo
U.S. National Register of Historic Places
Nearest city	Alcalde, New Mexico
Coordinates	36.056241°N 106.082516°W
Area	less than one acre
Built	1925
Built by	Monarch Engineering Company
Architectural style	Parker pony truss
MPS	Historic Highway Bridges of New Mexico MPS
NRHP reference No.	97000738[1]
Added to NRHP	August 14, 1997

It is a four-span bridge located about 200 yards (180 m) south of New Mexico State Road 74, about .5 miles (0.80 km) west of San Juan Pueblo. In the former alignment of the road, it served NM 74.[2]

It was designed by the Monarch Engineering Company of Denver, and consists of four spans, each 100 feet (30 m) in length, each consisting of five panels 20 feet (6.1 m) in length. Each of the panels has a top chord at a different diagonal angle, together forming the polygonal top design of a Parker truss.[2]

References

1. "National Register Information System". National Register of Historic Places. National Park Service. November 2, 2013.
2. David Kammer (December 1996). "National Register of Historic Places Registration: Rio Grande Bridge at San Juan Pueblo / San Juan Bridge / NMSHTD #1578". National Park Service. Retrieved January 26, 2019. With accompanying two photos from 1984