Total Bridges
8,965
Public highway bridges in Colorado
State profile · Below national median SD
Colorado bridge safety
Condition ratings, load ratings, and structural-deficiency data for every public highway bridge in Colorado — drawn straight from the FHWA National Bridge Inventory.
- 8,965
- Public bridges
- 32.0%
- Good condition
- 4.3%
- Poor condition
- 4.3%
- Structurally deficient
Good Condition
32.0%
2,865 bridges rated 7-9
-18.0pp vs 50% benchmark
Poor Condition
4.3%
387 bridges rated 0-4
Structurally Deficient
4.3%
387 bridges flagged for repair priority
-2.7pp vs national avg 7.0%
Colorado vs national bridge condition
Colorado — Good condition share 32.0%
National avg
Share of bridges rated 7-9 on the FHWA 0-9 scale (deck, superstructure, substructure all good).
Colorado — Structurally deficient share 14.4%
National avg
Lower is better. Bar maxes at 30% (worst-state ceiling). National average sits at 7.0%.
Condition Distribution
Bridge inventory deck-condition mix — Colorado (FHWA NBI)
Counties (64)
Adams 535 Alamosa 16 Arapahoe 391 Archuleta 44 Baca 106 Bent 68 Boulder 311 Broomfield 66 Chaffee 84 Cheyenne 61 Clear Creek 77 Conejos 62 Costilla 39 Crowley 28 Custer 20 Delta 64 Denver 458 Dolores 28 Douglas 263 Eagle 174 El Paso 686 Elbert 85 Fremont 137 Garfield 167 Gilpin 19 Grand 88 Gunnison 100 Hinsdale 31 Huerfano 94 Jackson 47 Jefferson 464 Kiowa 31 Kit Carson 130 La Plata 102 Lake 17 Larimer 559 Las Animas 207 Lincoln 129 Logan 182 Mesa 319 Mineral 26 Moffat 80 Montezuma 61 Montrose 118 Morgan 192 Otero 195 Ouray 39 Park 55 Phillips 27 Pitkin 62 Prowers 137 Pueblo 264 Rio Blanco 54 Rio Grande 71 Routt 96 Saguache 41 San Juan 13 San Miguel 59 Sedgwick 64 Summit 57 Teller 27 Washington 75 Weld 614 Yuma 49
Colorado vs nearby ranks
Adjacent states on the structurally deficient leaderboard (lower share = better)
States are ranked by share of bridges flagged structurally deficient — the FHWA classification for any span where deck, superstructure, or substructure carries a condition rating of 4 or below. Lower percentages indicate stronger maintenance funding and inspection follow-through. States here sit immediately above and below Colorado on the same metric.
Bridges Needing Most Attention in Colorado
Six lowest-condition bridges in Colorado, ranked by composite NBI rating. Each is inspected at least every 24 months.
County Road 59
Structurally DeficientOver: N. Sterling Outlet Canal
0.3 Mi N of Co Rd 58, Logan, CO
Built 1940 Load: 1.4 t ADT: 6
COTTONWOOD ST
Structurally DeficientOver: NORTH CRESTONE CREEK
IN TOWN OF CRESTONE, Saguache, CO
Built 1991 Load: 2.3 t ADT: 65
CO Rd 32
Structurally DeficientOver: Feeder Ditch
0.28 MI E of Co Rd 75, Las Animas, CO
Built 1970 Load: 2.7 t ADT: 7
POTOMAC STREET
Structurally DeficientOver: OBRIAN CANAL
0.2 MILE NORTH OF SH 2, Adams, CO
Built 1940 Load: 3.8 t ADT: 190
88TH AVENUE
Structurally DeficientOver: KIOWA CREEK
0.1 MI E OF WOLF CREEK RD, Adams, CO
Built 1950 Load: 4.5 t ADT: 532
IRR# CO RD 500
PoorOver: CAT CREEK
NEAR CAMADO, Archuleta, CO
Built 1927 Load: 4.7 t ADT: 36
All Bridges in Colorado
County Road 39
FairOver: Pierce Lateral Canal
0.5 Mi N of Co Rd 86, Weld, CO
Built 1960 Load: 23.0 t ADT: 107
County Road 78
FairOver: Larimer and Weld Canal
0.8 Mi E of Co Rd 27, Weld, CO
Built 1993 Load: 23.0 t ADT: 200
US 50 ML EBND
FairOver: ARKANSAS RIVER
0.21 MI E OF JCT SH 194, Bent, CO
Built 1974 Load: 23.1 t ADT: 2,150
SH 101 ML
FairOver: DRAW
7 MI SO OF JCT US 50, Bent, CO
Built 1937 Load: 23.1 t ADT: 250
55th Street
FairOver: Empson Ditch
250 Ft N of Penn. Ave., Boulder, CO
Built 1996 Load: 23.1 t ADT: 9,146
KINNIKINNICK ROAD
FairOver: GORE CREEK
0.1 MI SE OF FRONTAGE RD, Eagle, CO
Built 1983 Load: 23.1 t ADT: 876
COUNTY ROAD 194
FairOver: KIOWA CREEK
.6 MI E OF COUNTY RD 29, Elbert, CO
Built 1964 Load: 23.1 t ADT: 418
US 50 ML
FairOver: STOUT CREEK
13 MI SE OF SALIDA, Fremont, CO
Built 1934 Load: 23.1 t ADT: 3,600
I 25 ML NBND
FairOver: FRONTAGE ROAD
9.9 MI NO OF JCT SH 239, Las Animas, CO
Built 1969 Load: 23.1 t ADT: 6,000
US 160 ML
FairOver: ARCHULETA CREEK
21 miles West of Kim, Las Animas, CO
Built 1934 Load: 23.1 t ADT: 130
US 40 ML
FairOver: LAY CREEK
13.2 MI EAST OF MAYBELL, Moffat, CO
Built 1960 Load: 23.1 t ADT: 940
COUNTY ROAD 4A
FairOver: SAN MIGUEL RIVER
.2 MI N OF CR 90, Montrose, CO
Built 1985 Load: 23.1 t ADT: 586
COUNTY ROAD DD
FairOver: OTERO CANAL
.1 MI W OF SH 71, Otero, CO
Built 1965 Load: 23.1 t ADT: 192
SH 14 ML
FairOver: CROW CREEK
10.5 MI E OF JCT US 85, Weld, CO
Built 1956 Load: 23.1 t ADT: 2,300
US 34 ML
FairOver: 23RD AVE
IN GREELEY, Weld, CO
Built 1974 Load: 23.1 t ADT: 38,000
COUNTY ROAD 112
FairOver: ROCK CREEK
4.9 MI SE OF ALAMOSA, Alamosa, CO
Built 1990 Load: 23.2 t ADT: 121
US 36 ML
FairOver: FOUR MILE CANYON CREEK
28th ST in BOULDER, Boulder, CO
Built 1957 Load: 23.2 t ADT: 16,000
US 36 ML
FairOver: SUPPLY DITCH
IN LYONS, Boulder, CO
Built 1972 Load: 23.2 t ADT: 15,000
21ST STREET
FairOver: FOUNTAIN CREEK
JUST N OF US 24, El Paso, CO
Built 1958 Load: 23.2 t ADT: 10,578
US 85 ML
FairOver: FOUNTAIN CREEK
S. EDGE OF COLO. SPRINGS, El Paso, CO
Built 1965 Load: 23.2 t ADT: 22,000
US 50 ML
FairOver: HAYDEN CREEK
18 MI SE OF SALIDA, Fremont, CO
Built 1936 Load: 23.2 t ADT: 3,600
US 50 SERVICE RD
FairOver: GUNNISON RVR SR
W. SIDE OF GUNNISON, Gunnison, CO
Built 1926 Load: 23.2 t ADT: 1,082
US 50 SERVICE RD
FairOver: GUNNISON RIVER
W. SIDE OF GUNNISON, Gunnison, CO
Built 1926 Load: 23.2 t ADT: 845
80TH AVENUE
FairOver: FARMERS HIGHLINE CANAL
.15 MI E OF KIPLING ST, Jefferson, CO
Built 1930 Load: 23.2 t ADT: 16,690
County Road U
FairOver: Kiowa Creek
0.7 Mi E of Co Rd 3, Morgan, CO
Built 1988 Load: 23.2 t ADT: 68
County Road 6
FairOver: Denver Hudson Canal
1.8 Mi E of Co Rd 55, Weld, CO
Built 1982 Load: 23.2 t ADT: 106
Ramp E
FairOver: Smith Road & UPRR
21.01 MI FROM I25, Adams, CO
Built 2006 Load: 23.3 t ADT: 2,200
FDR 298 & BC 116
FairOver: NORTH BOULDER CREEK
3.45 MI SW OF CO HWY 72, Boulder, CO
Built 1970 Load: 23.3 t ADT: 40
RAMP TO I 70 EBND
FairOver: RAMP TO I 25 SBND R
MOUSETRAP IN DENVER, Denver, CO
Built 1993 Load: 23.3 t ADT: 60,500
FDR 520
FairOver: LOST TRAIL CREEK
18.1 MI ON FDR 520, Hinsdale, CO
Built 1959 Load: 23.3 t ADT: 113
COUNTY ROAD 240
FairOver: FLORIDA RIVER
E OF JCT CR 243/240, La Plata, CO
Built 1983 Load: 23.3 t ADT: 2,095
COUNTY ROAD 22
FairOver: PERSIGO WASH
.1 MI N OF HWY 6, Mesa, CO
Built 1984 Load: 23.3 t ADT: 2,846
US 24 ML
FairOver: MULEY GULCH
6.7 MI S.E. OF JCT SH 9 M, Park, CO
Built 1937 Load: 23.3 t ADT: 3,300
WINDING ROAD 611
FairOver: GURLEY DITCH
14.5 MI. SSE NORWOOD CO., San Miguel, CO
Built 1976 Load: 23.3 t ADT: 11
SH 60 ML
FairOver: DRAW
IN MILLIKEN, Weld, CO
Built 1958 Load: 23.3 t ADT: 9,600
COUNTY ROAD 12
FairOver: TWO BUTTES CREEK
0.9 MI N OF CR RR, Baca, CO
Built 1979 Load: 23.4 t ADT: 24
COUNTY ROAD 16
FairOver: CONEJOS RIVER
1.4 MI N OF CR H, Conejos, CO
Built 1974 Load: 23.4 t ADT: 51
County Road 202
FairOver: Roan Creek
0.7 Mi W of Co Rd 204, Garfield, CO
Built 1992 Load: 23.4 t ADT: 28
County Road 8
FairOver: Canadian River
2.9 Mi E St Hwy 125, Jackson, CO
Built 1996 Load: 23.4 t ADT: 22
IRR# US 550 ML
FairOver: ANIMAS RIVER
3 MI NORTH OF NEW MEXICO, La Plata, CO
Built 1957 Load: 23.4 t ADT: 8,100
FT COLLINS EXP WAY
FairOver: DITCH
1.2 MI S OF TED'S PLACE, Larimer, CO
Built 1987 Load: 23.4 t ADT: 8,900
SH 141 ML
FairOver: WEST CREEK
8.9 MI N OF GATEWAY, Mesa, CO
Built 1962 Load: 23.4 t ADT: 540
COUNTY ROAD 31.5
FairOver: GOVT. HIGHLINE CANAL
.7 MI N OF RD F, Mesa, CO
Built 1986 Load: 23.4 t ADT: 213
COUNTY ROAD J
FairOver: GRAND VALLEY CANAL
.7 MI E OF RD 22, Mesa, CO
Built 1955 Load: 23.4 t ADT: 1,005
8TH STREET
FairOver: DRY CREEK
0.1 MI W OF AMARILLO ST, Pueblo, CO
Built 1955 Load: 23.4 t ADT: 984
County Road 129
FairOver: Little Snake River
48.6 Mi N of US Hwy 40, Routt, CO
Built 1975 Load: 23.4 t ADT: 85
COUNTY ROAD G
FairOver: UNNAMED CREEK
.9 MI E OF CR 13, Baca, CO
Built 1960 Load: 23.5 t ADT: 3
CO RD 749
FairOver: EAST RIVER
.2 mi W OF SH 135, Gunnison, CO
Built 1996 Load: 23.5 t ADT: 17
US 34 ML
FairOver: HANDY DITCH
3.7 MI WEST OF LOVELAND, Larimer, CO
Built 1933 Load: 23.5 t ADT: 4,900
County Road 80C
FairOver: North Poudre Canal
0.7 Mi E of Co Rd 37, Larimer, CO
Built 1971 Load: 23.5 t ADT: 380
Showing 1,751-1,800 of 8,965 bridges
Data sourced from the FHWA National Bridge Inventory (NBI), latest released cycle. See our methodology for details. Retrieved and formatted by PlainBridges Editorial.
Disclaimer: This information is provided for informational purposes only and does not constitute professional advice. Data is sourced from the FHWA National Bridge Inventory (NBI). A "structurally deficient" rating is a repair-priority signal, not a closure or unsafe-to-cross designation. Consult a qualified civil engineer before making decisions based on this data.
Understanding Bridge Conditions
How FHWA rates bridge condition on a 0-9 scale.
Check Your Daily Bridges
How to look up bridge condition data for bridges on your route.
Read our methodology — how this data is sourced, computed, and verified.
| Publisher | Kiznis Studio |
| Sources | FHWA National Bridge Inventory, public U.S. government datasets |