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 129
FairOver: Mad Creek
5.4 Mi N of US Hwy 40, Routt, CO
Built 1981 Load: 23.9 t ADT: 2,762
County Road 41
FairOver: Little Owl Creek
0.95 Mi N of Co Rd 100, Weld, CO
Built 1992 Load: 23.9 t ADT: 36
County Road LL.5
FairOver: S. Fork Republican River
0.45 Mi N of Co Rd 4, Yuma, CO
Built 1989 Load: 23.9 t ADT: 45
US 287 ML
FairOver: DITCH
120TH AVE IN WESTMINSTER, Adams, CO
Built 1965 Load: 24.0 t ADT: 35,000
COUNTY ROAD 24
FairOver: FT. LYON CANAL
2.3 MI N US 50, Bent, CO
Built 1983 Load: 24.0 t ADT: 87
US 24 ML
FairOver: COTTONWOOD CREEK
IN BUENA VISTA, Chaffee, CO
Built 1969 Load: 24.0 t ADT: 13,000
FSR 250.6A
FairOver: CONEJOS RIVER
.10 MI ON FSR 250.6A, Conejos, CO
Built 1969 Load: 24.0 t ADT: 116
NUGGET LANE
FairOver: GORE CREEK
0.01 MI S STREAMSIDE CIR, Eagle, CO
Built 1981 Load: 24.0 t ADT: 120
SH 30 ML/6TH AVE
FairOver: TOLLGATE CREEK
0.2 MI E OF I225 IN AUROR, Arapahoe, CO
Built 1978 Load: 24.1 t ADT: 30,000
CO RD CLUBHOUSE WY
FairOver: LAPIN CREEK
0.1 MI N OF AIRPORT ROAD, Custer, CO
Built 1980 Load: 24.1 t ADT: 58
CRYSTAL VALLEY PKY
FairOver: EAST PLUM CREEK AND RR
0.15 MI E OF FRONTAGE RD, Douglas, CO
Built 2008 Load: 24.1 t ADT: 12,887
W BEAVER CK BLVD
FairOver: EAGLE RIVER
0.1 MI N OF SH6, Eagle, CO
Built 1979 Load: 24.1 t ADT: 3,391
I 70 ML EBND
FairOver: KYLE RR
0.7 MI E OF JCT SH 71, Lincoln, CO
Built 1975 Load: 24.1 t ADT: 6,000
County Road 52E
FairOver: Elk River
0.4 Mi W of Co Rd 129, Routt, CO
Built 1981 Load: 24.1 t ADT: 227
CR 31XX/MEANS AVE.
FairOver: MARSHALL CREEK
JUST S OF SH 50, Saguache, CO
Built 1986 Load: 24.1 t ADT: 140
County Road 59
FairOver: Willow Creek
2.8 Mi S of Co Rd 120, Weld, CO
Built 1992 Load: 24.1 t ADT: 5
SH 157 ML
FairOver: BEAR CANYON CREEK
NEAR COLORADO AVE., Boulder, CO
Built 1978 Load: 24.2 t ADT: 38,000
US 50 ML
FairOver: LOST CREEK
7.6 MI W. OF PONCHA SPGS., Chaffee, CO
Built 1939 Load: 24.2 t ADT: 2,600
I 25 ML SBND
FairOver: SULL CREEK
1.7 MI N OF SH10-WLSNBRG., Huerfano, CO
Built 1963 Load: 24.2 t ADT: 4,650
I 70 ML EBND
FairOver: RR, SALT CREEK
9.8 MI. E. COLO.-UTAH S.L, Mesa, CO
Built 1971 Load: 24.2 t ADT: 4,200
I 70 BUSINESS RT
FairOver: LEACH CREEK
GRAND JCT/REDLANDS PRKY, Mesa, CO
Built 1968 Load: 24.2 t ADT: 26,000
County Road 17
FairOver: Lay Creek
4.5 Mi North of US Hwy 40, Moffat, CO
Built 1955 Load: 24.2 t ADT: 37
SH 52 ML
FairOver: S PLATTE RIVER OVRFLW
.5 MI W OF FT LUPTON, Weld, CO
Built 1957 Load: 24.2 t ADT: 13,000
CR54 (37th St)
FairOver: Ashcroft Draw
0.5 Mi E of Co Rd 29.5, Weld, CO
Built 1992 Load: 24.2 t ADT: 8,996
C. R. 41 (63rd St)
FairOver: St. Vrain Creek
0.5 Mi N of Co Rd 10, Boulder, CO
Built 1991 Load: 24.3 t ADT: 134
1ST AVENUE
FairOver: WEIR GULCH
BTWN RALEIGH/QUITMAN, Denver, CO
Built 1977 Load: 24.3 t ADT: 7,307
BRUSH CREEK RD
FairOver: EAST BRUSH CREEK
7.8 MI E OF QUZEL LANE, Eagle, CO
Built 1956 Load: 24.3 t ADT: 188
DUBLIN BLVD
FairOver: LOCAL DRAINAGE
.5 M W ACADEMY/LEMONWD RD, El Paso, CO
Built 1982 Load: 24.3 t ADT: 5,933
County Road 108
FairOver: Crystal River
E of Intersection CR 106, Garfield, CO
Built 1950 Load: 24.3 t ADT: 2,569
COUNTY ROAD 74
FairOver: UPPER BEAR CREEK
3 MI W JCT EVERGN LAKE, Jefferson, CO
Built 1992 Load: 24.3 t ADT: 1,308
FIELD STREET
FairOver: COON CREEK
0.5 MI S OF BELLEVIEW AVE, Jefferson, CO
Built 1975 Load: 24.3 t ADT: 2,054
Fish Hatchery Road
FairOver: Fall River
0.2 Mi W of US Hwy 34, Larimer, CO
Built 1983 Load: 24.3 t ADT: 501
COUNTY RD 63.1
FairOver: CANYON DEL AGUA CREEK
.6 MI N OF CR 44, Las Animas, CO
Built 1930 Load: 24.3 t ADT: 38
I 70 ML WBND
FairOver: UP RR, River Rd
0.3 MI W OF US 6 ML, Mesa, CO
Built 1969 Load: 24.3 t ADT: 9,000
I 70 ML EBND
FairOver: CO RD, UP RR
0.3 MI W OF GRAND JUNCTN, Mesa, CO
Built 1969 Load: 24.3 t ADT: 9,000
HICKORY ROAD
FairOver: DRY CREEK
4.7 MI SW OF OLATHE, Montrose, CO
Built 1947 Load: 24.3 t ADT: 305
POWER PLANT RD
FairOver: CASTLE CREEK
JUST WEST OF MEADOWS RD, Pitkin, CO
Built 1973 Load: 24.3 t ADT: 12,818
Boston Ave (Cr 18)
FairOver: St. Vrain Creek
0.1 Mi E of Co Rd 15, Boulder, CO
Built 1990 Load: 24.4 t ADT: 9,636
RAMAH ROAD
FairOver: BIG SANDY CREEK
0.3 MI E OF RAMAH, El Paso, CO
Built 1965 Load: 24.4 t ADT: 62
County Road 17
FairOver: Lay Creek
9.9 Mi North of US Hwy 40, Moffat, CO
Built 1955 Load: 24.4 t ADT: 31
DAKOTA AVENUE
FairOver: CORNET CREEK
100 FT W of N ASPEN ST, San Miguel, CO
Built 2008 Load: 24.4 t ADT: 75
County Road 42
FairOver: Evans Ditch No. 2
0.1 Mi E of Co Rd 39, Weld, CO
Built 1991 Load: 24.4 t ADT: 86
88TH AVENUE
FairOver: OBRIAN CANAL
0.5 MI E OF BRIGHTON BLVD, Adams, CO
Built 1970 Load: 24.5 t ADT: 19,093
96TH AVENUE
FairOver: EAST BIJOU CREEK
0.8 MI E OF HORROGATE RD, Adams, CO
Built 1965 Load: 24.5 t ADT: 82
HENDERSON ROAD
FairOver: BRANTNER DITCH
0.1 M E OF RIVERDALE RD, Adams, CO
Built 1940 Load: 24.5 t ADT: 10,583
US 40 ML
FairOver: STORM FLOW CULVERT
1.3 MI E OF JCT I 225, Adams, CO
Built 1988 Load: 24.5 t ADT: 21,000
88TH AVENUE
FairOver: SOUTH PLATTE RIVER
1.36 MI W OF I-76, Adams, CO
Built 1960 Load: 24.5 t ADT: 25,590
COUNTY ROAD 30
FairOver: BOX ELDER CREEK
2.8 MILES E OF CR 97, Arapahoe, CO
Built 1967 Load: 24.5 t ADT: 1,557
MISSISSIPPI AVENUE
FairOver: SIDE CREEK
0.1 MI E OF TOWER RD, Arapahoe, CO
Built 1981 Load: 24.5 t ADT: 13,675
BROADWAY
FairOver: HIGHLINE CANAL
0.3 MI S OF ARAPAHOE RD, Arapahoe, CO
Built 1966 Load: 24.5 t ADT: 1,796
Showing 1,851-1,900 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 |