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
Data updated May 2026
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
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
120TH AVE EBND
UnknownOver: RIVERDALE RD
2 MI W OF US85, Adams, CO
Built 2005 ADT: 400
120TH AVE WBND
UnknownOver: RIVERDALE RD
2 MI W OF US85, Adams, CO
Built 2005 ADT: 400
17TH PLACE
UnknownOver: I-225
0.3 MI N OF COLFAX AVE, Adams, CO
Built 2013 ADT: 148,000
AIRPORT BLVD
UnknownOver: I-70
AIRPORT BLVD OVER I-70, Adams, CO
Built 1993 ADT: 65,800
I 76 ML EBND
UnknownOver: FEDERAL BLVD
FEDERAL BLVD/ US 287, Adams, CO
Built 1989 ADT: 35,000
I 76 ML WBND
UnknownOver: FEDERAL BLVD
I76 OVER 287-FEDERAL BLVD, Adams, CO
Built 1989 ADT: 35,000
US 287 ML
UnknownOver: US 36 ML
FEDERAL @ US 36 IN WEST., Adams, CO
Built 2002 ADT: 50,000
80TH AVE
UnknownOver: US 36 ML
IN WESTMINSTER, Adams, CO
Built 2010 ADT: 17,439
84TH AVE
UnknownOver: I 25 ML
THORNTON, Adams, CO
Built 2012 ADT: 27,000
128TH AVE
UnknownOver: I25 ML
0.5 MI W OF WASHINGTON ST, Adams, CO
Built 2008 ADT: 18,166
104TH AVE
UnknownOver: I 25 ML
IN NORTHGLENN, Adams, CO
Built 2009 ADT: 43,088
I-76 ML
UnknownOver: SH 224 ML (74TH AVE)
AT 74TH AVE, Adams, CO
Built 2010 ADT: 26,000
EB SH 44_104TH AVE
UnknownOver: I76 ML
NE of HWY 85 Junction, Adams, CO
Built 2015 ADT: 100,000
I 70 ML EBND
UnknownOver: SMITH ROAD, UP RR
4.3 MI E OF JCT I 225, Adams, CO
Built 2014
PEORIA STREET
UnknownOver: I 76 ML
2.7 MI NE OF JCT US 85, Adams, CO
Built 2013 ADT: 38,000
SH 6 ML SBND
UnknownOver: I 76 ML
AT JCT I-76, Adams, CO
Built 1967 ADT: 56,000
DAHLIA STREET
UnknownOver: I 76 ML
2.1 MI NE OF JCT I 270, Adams, CO
Built 1967 ADT: 17,704
SH 224 ML
UnknownOver: I76 RAMP, UP RR
2.6 MI E OF JCT US 36, Adams, CO
Built 1963 ADT: 41,600
YORK STREET
UnknownOver: I 270 ML
IN COMMERCE CITY, Adams, CO
Built 1970 ADT: 11,975
I 270 ML WBND
UnknownOver: SH 265 ML,UP RR,BNSF RR
IN COMMERCE CITY, Adams, CO
Built 1969 ADT: 7,700
I 270 ML EBND
UnknownOver: SH 265 ML,UP RR,BNSF RR
IN COMMERCE CITY, Adams, CO
Built 1969 ADT: 7,700
I 270 ML EBND
UnknownOver: DAHLIA STREET
COMMERCE CITY, Adams, CO
Built 1968 ADT: 5,000
US 85 ML SBND
UnknownOver: SH 7 ML
BRIGHTON, Adams, CO
Built 1965 ADT: 17,000
US 85 ML NBND
UnknownOver: SH 7 ML
BRIGHTON, Adams, CO
Built 1965 ADT: 17,000
US 36 HOV
UnknownOver: I25 SBND ML AND I25 HOV
0.7 MI NO OF JCT I76, Adams, CO
Built 1972 ADT: 100,000
88TH AVE
UnknownOver: I 76 ML
0.7 MI NE OF JCT US 6, Adams, CO
Built 1972 ADT: 24,474
88TH AVE
UnknownOver: I 25 ML
IN THORNTON, Adams, CO
Built 1972 ADT: 14,589
BROMLEY LANE
UnknownOver: I 76 ML
4.98 MI NE OF JCT SH 51 -, Adams, CO
Built 1986 ADT: 11,993
THORNTON PKWY 94TH
UnknownOver: I 25 ML
IN THORNTON, Adams, CO
Built 1985 ADT: 14,069
SH 2 ML
UnknownOver: US 6 ML
IN COMMERCE CITY, Adams, CO
Built 1987 ADT: 24,000
CHAMBERS ROAD
UnknownOver: I 70 ML
1 MI E OF JCT I 225, Adams, CO
Built 1987 ADT: 33,599
SH 7 ML
UnknownOver: I 25 ML
I25 LAFAYETTE INTERCHANGE, Adams, CO
Built 1987 ADT: 95,000
TOWER ROAD
UnknownOver: I 70 ML
1.3 MI N OF JCT US 40, Adams, CO
Built 1989 ADT: 30,445
MILL ROAD
UnknownOver: US 6 ML
COMMERCE CITY N of 60th, Adams, CO
Built 1993 ADT: 27,000
US 36 ML
UnknownOver: SH 224 ML/BRDWY.
0.6 MI W OF JCT I 25, Adams, CO
Built 1986 ADT: 15,000
RAMP TO I 76 WBND
UnknownOver: RAMP, CLEAR CREEK R
NW OF I76 and I25 INT, Adams, CO
Built 1992 ADT: 219,000
RAMP TO I 76 WBND
UnknownOver: I 25 ML R
I25 & I76 JCT, Adams, CO
Built 1991 ADT: 235,000
I 76 ML EBND
UnknownOver: RAMP TO I 25 SBND
0.1 MI W. OF I25+I76 JCT, Adams, CO
Built 1991 ADT: 196,700
I 76 ML WBND
UnknownOver: RAMP TO I 25 SBND
0.1 MI W. OF I25+I76 JCT, Adams, CO
Built 1991 ADT: 196,700
I 76 ML EBND
UnknownOver: I 25 ML
I 76 AND I 25, Adams, CO
Built 1990 ADT: 235,000
I 76 ML WBND
UnknownOver: I 25 ML
I 76 AND I 25, Adams, CO
Built 1990 ADT: 235,000
I76 WB OFF RAMP
UnknownOver: RAMP TO I 25 NBND R
0.1 MI E. OF I25+I76 JCT, Adams, CO
Built 1991 ADT: 237,900
I 76 EBND ML
UnknownOver: RAMP TO I 25 NBND
0.2 MI E OF I 25, Adams, CO
Built 1990 ADT: 23,790
I 76 WBND ML
UnknownOver: RAMP TO I 25 NBND
0.2 MI E OF I 25, Adams, CO
Built 1990 ADT: 23,790
RAMP TO I 25 NBND
UnknownOver: I 25 ML, HOV, RAMP
I25 & I76 JCT, Adams, CO
Built 1991 ADT: 196,700
RAMP TO I 25 NBND
UnknownOver: RAMP TO I 25 SBND R
0.1 MI W. OF I25+I76 JCT, Adams, CO
Built 1991 ADT: 196,700
EB76 RMP TO I25 NB
UnknownOver: SH 53 ML
.4 MI W OF JCT I76 &, Adams, CO
Built 1993 ADT: 14,000
I 76 EBND ML
UnknownOver: SH 53 ML-BROADWAY
EBnd I 76 OVER BROADWAY, Adams, CO
Built 1993 ADT: 10,000
I 76 ML WBND
UnknownOver: SH 53 ML-BROADWAY
I76 OVER BROADWAY, Adams, CO
Built 1993 ADT: 10,000
I76RAMP OVER BRDWY
UnknownOver: SH 53 ML-BROADWAY R
I 76 OVER BROADWAY, Adams, CO
Built 1993 ADT: 10,000
Showing 1-50 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.
Every figure on PlainBridge is rendered directly from federal source data, no number is typed in by an editor. This page draws directly on federal source data, no figure is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error.