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Colorado Bridges

8,965 bridges across 64 counties

Bridge Map

Summary

Total Bridges:8,965
Good Condition:3,197 (36%)
Fair Condition:5,336 (60%)
Poor Condition:432 (5%)
Average Age:42.7 years
Counties:64

Bridge Condition Distribution

Good
Fair
Poor
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Bridge Types

Bridge TypeCountPercentage
Stringer/Multi-beam or Girder3,87443.2%
Culvert1,95521.8%
Tee Beam1,28714.4%
Box Beam or Girders - Multiple5386.0%
Box Beam or Girders - Single or Spread4244.7%
Slab3614.0%
Frame2072.3%
Arch - Deck1411.6%
Girder and Floorbeam System740.8%
Truss - Thru620.7%
Arch - Thru190.2%
Segmental Box Girder170.2%
Truss - Deck30.0%
Other20.0%
Suspension10.0%

Bridge Age Distribution

Bridges Built Over Time

Notable Bridges in Colorado

Most Trafficked Bridges

RTD Pedestrian Underpass

Fair

County 031, Colorado

Daily Traffic: 261,000 vehicles

SH 88 ML W./BELLEVIEW

Fair

County 005, Colorado

Daily Traffic: 246,000 vehicles

RR SPUR

Fair

County 031, Colorado

Daily Traffic: 242,000 vehicles

Oldest Bridges

COTTONWOOD CREEK

Fair

County 041, Colorado

Built in 1887 (138 years old)

RIO GRANDE RIVER

Poor

County 021, Colorado

Built in 1892 (133 years old)

EAST FORK EIGHT MILE CRK

Poor

County 043, Colorado

Built in 1894 (131 years old)

Longest Bridges

HILLSIDE

Fair

County 045, Colorado

Length: 10.0 meters

I25 RDWY RR S PLATTE RVR

Fair

County 031, Colorado

Length: 10.0 meters

ROADS/RIVER/RR

Fair

County 031, Colorado

Length: 10.0 meters

Recently Built Bridges

View all
CONEJOS RIVER DIVERSIONGood

County 021 • Built in 2024

MICHIGAN RIVERGood

County 057 • Built in 2023

ALKALI CANYONGood

County 083 • Built in 2023

CACHE LA POUDRE RIVERGood

County 069 • Built in 2023

RR SPURGood

County 069 • Built in 2023

POUDRE RIVER FLOODPLAINGood

County 069 • Built in 2023

Speer CanalGood

County 001 • Built in 2023

COUNTY ROAD 46Good

County 123 • Built in 2023

GW RRGood

County 123 • Built in 2023

GW RRFair

County 123 • Built in 2023

Counties in Colorado

64 counties
Adams County
535 bridges
Alamosa County
16 bridges
Arapahoe County
391 bridges
Archuleta County
44 bridges
Baca County
106 bridges
Bent County
68 bridges
Boulder County
311 bridges
Broomfield County
66 bridges
Chaffee County
84 bridges
Cheyenne County
61 bridges
Clear Creek County
77 bridges
Conejos County
62 bridges
Costilla County
39 bridges
Crowley County
28 bridges
Custer County
20 bridges
Delta County
64 bridges
Denver County
458 bridges
Dolores County
28 bridges
Douglas County
263 bridges
Eagle County
174 bridges
El Paso County
686 bridges
Elbert County
85 bridges
Fremont County
137 bridges
Garfield County
167 bridges
Gilpin County
19 bridges
Grand County
88 bridges
Gunnison County
100 bridges
Hinsdale County
31 bridges
Huerfano County
94 bridges
Jackson County
47 bridges
Jefferson County
464 bridges
Kiowa County
31 bridges
Kit Carson County
130 bridges
La Plata County
102 bridges
Lake County
17 bridges
Larimer County
559 bridges
Las Animas County
207 bridges
Lincoln County
129 bridges
Logan County
182 bridges
Mesa County
319 bridges
Mineral County
26 bridges
Moffat County
80 bridges
Montezuma County
61 bridges
Montrose County
118 bridges
Morgan County
192 bridges
Otero County
195 bridges
Ouray County
39 bridges
Park County
55 bridges
Phillips County
27 bridges
Pitkin County
62 bridges
Prowers County
137 bridges
Pueblo County
264 bridges
Rio Blanco County
54 bridges
Rio Grande County
71 bridges
Routt County
96 bridges
Saguache County
41 bridges
San Juan County
13 bridges
San Miguel County
59 bridges
Sedgwick County
64 bridges
Summit County
57 bridges
Teller County
27 bridges
Washington County
75 bridges
Weld County
614 bridges
Yuma County
49 bridges