Monarch Engineering Co.

of Denver, Colorado
View Exhibit map

Clear Fork Brazos River Bridge (Fisher County, Texas)
Built 1930
Pony truss bridge over Clear Fork Brazos River on CR 309
Open to traffic

CR 254 Bridge (Fisher County, Texas)
Built 1930
Pony truss bridge over an unnamed draw on CR 254
Open to traffic

EAU Arvada Bridge (Sheridan County, Wyoming)
Built 1917
Parker through truss bridge over Powder River
Replaced by a new bridge

EJP County Line Bridge (Big Horn County, Wyoming)
Built 1917
Parker pony truss bridge over Nowood River on County Road CN9-60
Intact but closed to all traffic

Gretna State Aid Bridge (Sarpy County, Nebraska)
Built 1916
Lost Through truss bridge over Elkhorn River on Lincoln Road
Replaced by a new bridge

Old NM 74 Rio Grande Bridge (Rio Arriba County, New Mexico)
Built 1925
Pony truss bridge over Rio Grande on an old alignmentI of Irr/Nm-74
Open to pedestrians

Old Rairden Bridge (Big Horn County, Wyoming)
Built 1916
Pin-connected Pennsylvania through truss bridge over Big Horn River on Old LN 55
Closed to all traffic

Owl Creek Bridge (Hot Springs County, Wyoming)
Built 1919
Lost Camelback through truss bridge over Owl Creek on Jones Road
No longer exists; Supports remain

Parsons Creek Bridge (Linn County, Missouri)
Built 1913
Lost pony truss bridge over Parsons Creek on Arrow Road
Replaced by new bridge

Prairie Dog Creek Bridge (Harlan County, Nebraska)
Built 1913
Pony truss bridge over Prairie Dog Creek on a township road, 8.5 mi. south and 1 mi. west of Orleans
Open to traffic

Rio Grande Bridge (Rio Grande County, Colorado)
Built 1922
Lost Parker through truss bridge over Rio Grande on US-285
Replaced by a new bridge

Sanders Bridge (Apache County, Arizona)
Built 1923
Pratt pony truss bridge over Puerco River on on an abandoned section of Claymine Road (former US 66) in Sanders
Mounds of sand keep bridge closed to automobiles but open to pedestrians