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Historic Bridges in Wyoming

191 bridges built before 1951 in Wyoming still in service today.

Bridges Built Before 1951

The United States has 191 bridges in Wyoming built before 1951 that remain in active service. These structures are 75+ years old — many predate modern engineering codes and were not designed for today's traffic volumes and vehicle weights. The average design life of a bridge is 50 years, making these aging structures a significant infrastructure concern.

Clear
Bridge State Condition Year Built Age (Years) ADT
North Platte River Wyoming Fair 1949 77 2,093
Coal Draw Wyoming Fair 1949 77 1,777
Sage Creek Wyoming Fair 1949 77 1,632
Fish Creek Wyoming Poor 1949 77 10,222
Garland Canal Wyoming Fair 1949 77 3,431
Richeau Creek Wyoming Fair 1949 77 124
Chugwater Creek Wyoming Poor 1949 77 96
Indian Creek Wyoming Fair 1949 77 299
SNAKE RIVER Wyoming Fair 1950 76 5,000
Horse Creek Wyoming Fair 1950 76 85
Sheep Creek Wyoming Good 1950 76 85
Fall Creek Wyoming Fair 1950 76 6,183
St Marys Creek Wyoming Fair 1950 76 657
Pilot Canal Wyoming Poor 1950 76 265
Spring Gulch Wyoming Good 1950 76 87
Unnamed Draw Wyoming Good 1950 76 1,183
UPRR Wyoming Fair 1950 76 458
North Platte River Wyoming Fair 1950 76 299
Little Medicine Bow Rvr Wyoming Fair 1950 76 24
Crow Creek Wyoming Fair 1950 76 67
Canal No 2 Wyoming Fair 1950 76 138
Dutch Creek Wyoming Fair 1950 76 37
Cow Creek Wyoming Poor 1950 76 67
Crazy Woman Creek Wyoming Poor 1950 76 98
French Creek Wyoming Fair 1950 76 391
Shell Creek Wyoming Poor 1950 76 31
Red Gulch Wyoming Poor 1950 76 83
Albert Creek Wyoming Poor 1950 76 64
Canal No 2 Wyoming Fair 1950 76 225
Canal No 2 Wyoming Fair 1950 76 138
Canal No 2 Wyoming Fair 1950 76 138
Canal No 2 Wyoming Fair 1950 76 138
Sidon Canal Wyoming Fair 1950 76 119
Lower Hanover Canal Wyoming Fair 1950 76 326
Lower Hanover Canal Wyoming Fair 1950 76 546
Unnamed Draw Wyoming Fair 1950 76 1,183
Gid Canal Flood Control Wyoming Fair 1950 76 69
Unnamed Draw Wyoming Fair 1950 76 458
Hornecker Creek Wyoming Fair 1950 76 80
Middle Fork Popo Agie Wyoming Poor 1950 76 80
S Fork Walker Creek Wyoming Fair 1950 76 773

About Historic Bridge Data

Bridges built before 1951 are classified as historic in this database. Many were designed to 1940s standards with lower load limits and narrower lanes. While FHWA requires regular inspections of all bridges regardless of age, older structures often require more frequent monitoring and rehabilitation investment.

All Bridges Poor Condition Scour Critical Bridge Stats