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Historic Bridges in Colorado

857 bridges built before 1951 in Colorado still in service today.

Bridges Built Before 1951

The United States has 857 bridges in Colorado 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
DRAW Colorado Fair 1937 89 1,100
DEVILS GULCH Colorado Poor 1937 89 6,000
LITTLE THOMPSON RIVER Colorado Fair 1937 89 6,500
SHOSHONE INTAKE AR Colorado Fair 1937 89 353
BEAVER BROOK Colorado Poor 1937 89 480
AGRICULTURAL DITCH Colorado Fair 1937 89 23,000
LONE TREE GULCH Colorado Fair 1937 89 790
TROUT CREEK Colorado Fair 1937 89 7,200
DRAW Colorado Fair 1937 89 4,000
PINE CREEK Colorado Fair 1937 89 2,700
FOUR MILE CREEK Colorado Fair 1937 89 5,900
MIDDLE FK S.PLATTE RVR Colorado Poor 1937 89 3,300
MULEY GULCH Colorado Fair 1937 89 3,300
CHASE GULCH Colorado Fair 1937 89 3,300
MORTLAND GULCH Colorado Fair 1937 89 3,000
HUBBARD CREEK Colorado Fair 1937 89 10
SHIELDS GULCH Colorado Good 1937 89 6,700
MAGEE GULCH Colorado Fair 1937 89 6,700
ARKANSAS RIVER Colorado Fair 1937 89 8,300
TROUT CREEK Colorado Fair 1937 89 6,700
DRAW Colorado Good 1937 89 6,700
AGATE CREEK Colorado Fair 1937 89 2,200
TWIN CREEK Colorado Good 1937 89 5,400
FOUR MILE CREEK Colorado Fair 1937 89 29
ARROYO CREEK Colorado Fair 1937 89 3,300
DRAW Colorado Fair 1937 89 3,300
ADOBE GULCH Colorado Fair 1937 89 3,300
HOLBROOK CANAL Colorado Fair 1937 89 330
MCCRAE ARROYO Colorado Fair 1937 89 2,600
GAGEBY CREEK Colorado Fair 1937 89 2,600
PROWERS ARROYO Colorado Fair 1937 89 2,300
LIMESTONE CREEK Colorado Fair 1937 89 2,300
GRAY CREEK Colorado Fair 1937 89 112
Love/Horse Shoe Canal Colorado Fair 1937 89 6,823
DRAW Colorado Fair 1937 89 470
DRAW Colorado Fair 1937 89 250
Supply Ditch Colorado Poor 1937 89 3,223
COLORADO RIVER Colorado Fair 1937 89 412
ALKALI CREEK Colorado Poor 1937 89 3,400
CROSS CANYON Colorado Fair 1937 89 3,400
SHARPS CREEK Colorado Fair 1937 89 3,400
DRAW Colorado Fair 1937 89 3,400
CAHONE CREEK Colorado Fair 1937 89 3,200
DRAW Colorado Fair 1937 89 470
FURNESS ARROYO Colorado Fair 1937 89 710
WHISKEY CREEK Colorado Fair 1937 89 320
DRAW Colorado Poor 1937 89 1,000
Blue River Colorado Poor 1938 88 10
ST. CHARLES RIVER Colorado Fair 1938 88 286
TRIB N.FORK CIMARRON RVR Colorado Fair 1938 88 24

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