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
SHRINE PASS ROAD
UnknownOver: I 70 ML
0.1 MI E OF EAGLE SUMMIT, Summit, CO
Built 1975 ADT: 640
I 70 ML WBND
UnknownOver: FARM ACCESS ROAD
1.6 MI E OF JCT SH 6, Summit, CO
Built 1964 ADT: 100
I70 ML WBND
UnknownOver: SH 9 ML
AT SILVERTHORNE, Summit, CO
Built 1971 ADT: 32,700
I 70 ML EBND
UnknownOver: US 6 ML
AT SILVERTHORNE, Summit, CO
Built 1971 ADT: 22,900
SH 9 ML
UnknownOver: I 70 ML
AT FRISCO, Summit, CO
Built 1971 ADT: 28,000
I 70 ML EBND
UnknownOver: BlueRvr-Adams Ave and...
10.5 MI E OF JCT SH 91, Summit, CO
Built 1971
SH 91 ML
UnknownOver: CLIMAX MINE HAUL ROAD
.1 MI N LAKE/SUMMIT CO LI, Summit, CO
Built 1989 ADT: 3,200
I 76 ML WBND
UnknownOver: COUNTY ROAD Q
MERINO EXIT, Washington, CO
Built 1964 ADT: 100
I 76 ML EBND
UnknownOver: COUNTY ROAD Q
MERINO EXIT, Washington, CO
Built 1964 ADT: 100
I 25 ML NBND
UnknownOver: FARM ACCESS ROAD
5.7 MI S OF WYOMING S.L., Weld, CO
Built 1963 ADT: 110
I 25 ML SBND
UnknownOver: FARM ACCESS ROAD
5.6 MI S OF WYOMING S.L., Weld, CO
Built 1963 ADT: 110
I 25 ML NBND
UnknownOver: FARM ACCESS ROAD
4.4 MI S OF WYOMING S.L., Weld, CO
Built 1963 ADT: 10
I 25 ML SBND
UnknownOver: FARM ACCESS ROAD
4.5 MI SO OF WYOMING S.L., Weld, CO
Built 1963 ADT: 10
I 25 ML NBND
UnknownOver: FARM ACCESS ROAD
2.2 MI S OF WYOMING S.L., Weld, CO
Built 1963 ADT: 10
I 25 ML SBND
UnknownOver: FARM ACCESS ROAD
2.2 MI SO OF WYOMING S.L., Weld, CO
Built 1963 ADT: 10
COUNTY ROAD 126
UnknownOver: I 25 ML
6.3 MI S OF WYOMING S.L., Weld, CO
Built 1963 ADT: 300
COUNTY ROAD 38
UnknownOver: I 25 ML
4 MI NO OF JCT SH 66, Weld, CO
Built 1960 ADT: 84,000
US 34-D EBND
UnknownOver: US 34 ML
6 MI E OF JCT I-25, Weld, CO
Built 1977 ADT: 37,000
SH 257 ML
UnknownOver: US 34 BYPASS
WEST OF GREELEY, Weld, CO
Built 1999 ADT: 27,000
SH 257 ML
UnknownOver: US 34 BYPASS
8 MI W OF GREELEY, Weld, CO
Built 1999 ADT: 27,000
SH 60 WB ML
UnknownOver: I25 ML
2 MI N OF JCT SH56, Weld, CO
Built 2022
SH 60 EB ML
UnknownOver: I-25 ML
AT JCT I 25 ML, Weld, CO
Built 2020
I 25 ML NBND
UnknownOver: SH 60 ML
2.1 MI SO OF JCT SH 402, Weld, CO
Built 2023 ADT: 2,300
I 25 ML SBND
UnknownOver: SH 60 ML
2.1 MI SO OF JCT SH 402, Weld, CO
Built 2022 ADT: 2,300
US 34 ML WBND
UnknownOver: US 85 BUS RT
IN EVANS, Weld, CO
Built 1962 ADT: 11,000
US 34 ML EBND
UnknownOver: RAMP TO US85 SB, 8TH AVE
AT JCT US85, Weld, CO
Built 1968 ADT: 4,400
US 34 BYPASS
UnknownOver: US 85 BUSS RT
N. SIDE OF EVANS, Weld, CO
Built 1968 ADT: 11,000
US 85 BYPASS SBND
UnknownOver: US 85 BUSS RT
IN GREELEY, Weld, CO
Built 1962 ADT: 5,200
US 85 ML NBND
UnknownOver: CO.RD 39.5, UP RR
IN GREELEY, Weld, CO
Built 1962
US 34 ML WBND
UnknownOver: US 85 ML NBND R
S.E. CORNER OF GREELEY, Weld, CO
Built 1975 ADT: 24,000
RAMP TO US34 ML EB
UnknownOver: US 85 ML NBND R
S.E. CORNER OF GREELEY, Weld, CO
Built 1975 ADT: 24,000
US 34 ML EBND
UnknownOver: 1ST AVE
0.71 MI E OF JCT US 85, Weld, CO
Built 1975 ADT: 6,500
SH 52 ML
UnknownOver: I 25 ML
6.5 MI E OF JCT US 287, Weld, CO
Built 1999 ADT: 84,000
I 25 ML SBND
UnknownOver: COUNTY ROAD 32
6 MI SO OF JCT SH 56, Weld, CO
Built 1961 ADT: 100
I 25 ML NBND
UnknownOver: COUNTY ROAD 32
1 MI NO OF JCT SH 66, Weld, CO
Built 1961 ADT: 100
COUNTY ROAD 34
UnknownOver: I 25 ML
2 MI NO OF JCT SH 66, Weld, CO
Built 1961 ADT: 84,000
US 85 ML
UnknownOver: SH 52 ML
IN FORT LUPTON, Weld, CO
Built 1974 ADT: 8,800
I 25 ML NBND
UnknownOver: SH 119 ML
DEL CAMINO INTRCHG, Weld, CO
Built 1998 ADT: 36,000
I 25 ML SBND
UnknownOver: SH 119 ML
3 MI SO OF JCT SH 66, Weld, CO
Built 1998 ADT: 36,000
WELD COUNTY ROAD 8
UnknownOver: I 25 ML
3 MI NO OF JCT SH 7, Weld, CO
Built 2004 ADT: 8,867
SH 66 ML
UnknownOver: I 25 ML
6.5 MI E OF JCT US 287, Weld, CO
Built 2006 ADT: 69,000
I 76 ML WBND
UnknownOver: I 76 BUSS RT
Keenesburg Interchange, Weld, CO
Built 1961 ADT: 3,000
I 76 ML EBND
UnknownOver: I 76 BUSS RT
7.3 MI NE OF JCT SH 52, Weld, CO
Built 1961 ADT: 3,000
I 76 ML WBND
UnknownOver: COUNTY ROAD 53
2.5 MI W of Keenesburg, Weld, CO
Built 1961
I 76 ML EBND
UnknownOver: COUNTY ROAD 53
4.9 MI NE OF JCT SH 52, Weld, CO
Built 1961 ADT: 1,000
COUNTY ROAD 4
UnknownOver: I 76 ML, BNSF RR
2.8 MILES NE OF JCT SH 7, Weld, CO
Built 1981 ADT: 25,000
COUNTY ROAD 8
UnknownOver: I 76 ML, BNSF RR
5 MI E OF JCT SH 7, Weld, CO
Built 1983 ADT: 25,000
SH 52 ML
UnknownOver: I 76 ML
9.6 MI E OF JCT SH 85, Weld, CO
Built 2000 ADT: 8,800
I 76 ML EBND
UnknownOver: BOX ELDER CRK FRM ACC. R
2.4 MI NE OF JCT SH 52, Weld, CO
Built 2000 ADT: 100
I 76 ML WBND
UnknownOver: BOX ELDER CRK FRM. ACCES
27.9 MI SW OF JCT SH 144, Weld, CO
Built 2000 ADT: 1,000
Showing 801-850 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 |