Fort Laramie Bridge -- nr Fort Laramie NHP, Ft. Laramie WY
N 42° 12.643 W 104° 31.980
13T E 538548 N 4673277
A bowstring through truss bridge built in 1875 to afford easy crossing of the Platte River for soldiers at Fort Laramie.
Waymark Code: WMK2BT
Location: Wyoming, United States
Date Posted: 02/02/2014
Views: 7
This wonderful three-span bowstring through truss bridge was built by King Iron Works over the Platte River near Fort Laramie. It was bypassed by a new highway bridge in 1958, but was preserved as a Wyoming Civil Engineering landmark.
A plaque at the bridge reads as follows:
"OLD ARMY BRIDGE OVER THE PLATTE RIVER
Erected 1875
This bridge was a vital link between Cheyenne, Fort Laramie, and the military outposts, Indian agencies, and gold fields of the Black Hills Dakota region.
Placed by the Historical Landmark Commission of Wyoming
1951"
A smaller second plaque reads:
“Wyoming Historic
Civil Engineering Landmark
Fort Laramie Bridge
1875
Wyoming ASCE Chapter 1977”
The bridge is part of the National Register Fort Laramie Historic Site. From the National Register Nomination form: (
visit link)
"HS-016 Iron Bridge
Under pressure by citizens from Cheyenne to construct a bridge across the North Platte River, the Federal government proposed a structure be built near Fort Laramie. Under the guidance of the Engineer Corps, a wrought iron and native pine truss bridge was erected by the Army across the North Platte during the winter of 1875-76. The wrought iron sections were manufactured by the King Bridge and Mfg. Co. of Cleveland, Ohio. The bridge is composed of three spans: 2 125' long and 1 150' long and has a 12' roadway. Stabilization and restoration was completed in April 1969. This bridge is considered the oldest existing wrought iron military bridge west of the Mississippi."