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

Total Bridges

8,965

Public highway bridges in Colorado

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)

Colorado31.95761293920803%54.210819854991634%GoodFairPoorStructurally Deficient
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.

47

Tennessee

3.97% top marginal rate
Structure
Progressive
Burden @ $100K
$20,426

24

Maryland

4.27% top marginal rate
Structure
Progressive
Burden @ $100K
$5,527
Selected

08

Colorado

4.32% top marginal rate
Structure
Progressive
Burden @ $100K
$8,965

41

Oregon

4.46% top marginal rate
Structure
Progressive
Burden @ $100K
$8,310

39

Ohio

4.54% top marginal rate
Structure
Progressive
Burden @ $100K
$26,753

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 Deficient

Over: 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 Deficient

Over: NORTH CRESTONE CREEK

IN TOWN OF CRESTONE, Saguache, CO

Built 1991 Load: 2.3 t ADT: 65

CO Rd 32

Structurally Deficient

Over: Feeder Ditch

0.28 MI E of Co Rd 75, Las Animas, CO

Built 1970 Load: 2.7 t ADT: 7

POTOMAC STREET

Structurally Deficient

Over: OBRIAN CANAL

0.2 MILE NORTH OF SH 2, Adams, CO

Built 1940 Load: 3.8 t ADT: 190

88TH AVENUE

Structurally Deficient

Over: KIOWA CREEK

0.1 MI E OF WOLF CREEK RD, Adams, CO

Built 1950 Load: 4.5 t ADT: 532

IRR# CO RD 500

Poor

Over: CAT CREEK

NEAR CAMADO, Archuleta, CO

Built 1927 Load: 4.7 t ADT: 36

All Bridges in Colorado

SH 139 ML

Fair

Over: DOUGLAS CREEK

14 MI S OF RANGELY, Rio Blanco, CO

Built 1990 Load: 99.9 t ADT: 620

County Road 53

Fair

Over: Dry Creek

3.6 Mi S of US Hwy 40, Routt, CO

Built 1975 Load: 99.9 t ADT: 165

Oak Street

Fair

Over: Soda Creek

100 ft E of 11th Street, Routt, CO

Built 1970 Load: 99.9 t ADT: 3,918

11th Street

Fair

Over: Soda Creek

100 ft S of Oak Street, Routt, CO

Built 1950 Load: 99.9 t ADT: 3,112

SH 145 ML

Fair

Over: SAN MIGUEL RIVER

@ JCT WITH TELLURIDE SPUR, San Miguel, CO

Built 1960 Load: 99.9 t ADT: 7,600

CITY ST - DAVIS

Fair

Over: SAN MIGUEL RIVER

150 FT N of SH145, San Miguel, CO

Built 1995 Load: 99.9 t ADT: 253

US 6 ML

Fair

Over: SNAKE RIVER

5 MI S OF DILLON, Summit, CO

Built 1980 Load: 99.9 t ADT: 8,000

SH 9 ML

Fair

Over: BLUE RIVER

0.8 MI S. OF BRECKINGRIDG, Summit, CO

Built 1962 Load: 99.9 t ADT: 8,900

SH 61 ML

Fair

Over: DRAW

15.4 MI NO OF JCT US 34, Washington, CO

Built 1965 Load: 99.9 t ADT: 440

County Road D

Fair

Over: Trib. to Beaver Creek

0.65 Mi. N. of Co. Rd. 20, Washington, CO

Built 1993 Load: 99.9 t ADT: 7

I 25 ML, serv. rd.

Fair

Over: DRAW

2.2 MI NO OF JCT SH 66, Weld, CO

Built 1961 Load: 99.9 t ADT: 72,000

I 25 ML

Fair

Over: DRAW

4.2 MI NO OF JCT SH 7, Weld, CO

Built 2004 Load: 99.9 t ADT: 102,000

I 76 ML

Fair

Over: DRAW

4 MI S OF JCT SH 52, Weld, CO

Built 1935 Load: 99.9 t ADT: 23,000

NFSR 112.0

Good

Over: SOUTH ST VRAIN CREEK

W. SIDE OF BRAINARD LAKE, Boulder, CO

Built 2011 ADT: 200

County Road 26A

Good

Over: Sneffels Creek

0.1 MI S. of CR26, Ouray, CO

Built 2010 Load: 4.6 t ADT: 9

IRR# SH 151 ML

Good

Over: LOS PINOS RIVER

IN IGNACIO, La Plata, CO

Built 2005 Load: 5.8 t ADT: 3,400

I 25 RAMP

Good

Over: HOV RAMP R

I 25 NBND & SH 224, Adams, CO

Built 1998 Load: 6.5 t ADT: 242,000

CHEYENNE CANYON RD

Good

Over: NORTH CHEYENNE CREEK

1.6 MI W EVANS AVENUE, El Paso, CO

Built 2022 Load: 7.1 t ADT: 655

E Suniga Road

Good

Over: Lake Canal

500 Feet E of Redwood St, Larimer, CO

Built 2023 Load: 7.1 t ADT: 1,623

US 34 ML

Good

Over: BIG THOMPSON RIVER

6.5 MI E OF ESTES PARK, Larimer, CO

Built 2003 Load: 9.7 t ADT: 5,800

COUNTY ROAD 20

Good

Over: CATLIN CANAL

.3 MI N OF CR DD, Otero, CO

Built 1966 Load: 10.8 t ADT: 90

COUNTY ROAD 56

Good

Over: BEAVER CREEK

0.8 MILES NW OF RD KK, Kit Carson, CO

Built 1960 Load: 10.9 t ADT: 16

ALLEY

Good

Over: EAST HARVARD GULCH

BTWN DOWNING AND MARION, Denver, CO

Built 1967 Load: 11.0 t ADT: 34

ALLEY

Good

Over: EAST HARVARD GULCH

BTWN WILLIAMS AND HIGH, Denver, CO

Built 1967 Load: 11.2 t ADT: 41

SH 9 ML

Good

Over: BLUE RIVER

11.5 MI NO OF JCT I70, Summit, CO

Built 2002 Load: 11.4 t ADT: 2,800

US 36 ML

Good

Over: Wolf Creek

4 MI E OF JCT. SH 79, Adams, CO

Built 2002 Load: 12.1 t ADT: 3,800

SH 96 ML

Good

Over: BESSEMER DITCH

22.5 MI E OF CUSTER-PUEBL, Pueblo, CO

Built 1950 Load: 12.1 t ADT: 5,500

County Road 36

Good

Over: Soda Creek

1.8 Mi N of Amethyst Dr, Routt, CO

Built 1979 Load: 12.2 t ADT: 922

COUNTY ROAD 4

Good

Over: HELL CREEK

0.9 MILES NORTH OF ROAD D, Kit Carson, CO

Built 1974 Load: 12.4 t ADT: 169

RED ROCKS PARK RD

Good

Over: MT VERNON CREEK

SE ENTRANCE TO RED ROCKS, Denver, CO

Built 2014 Load: 12.6 t ADT: 2,257

FDR 305

Good

Over: CACHE LA POUDRE RIVER

N CO HWY 14 W POUDRE PARK, Larimer, CO

Built 2004 Load: 12.6 t ADT: 30

I 76 ML WBND

Good

Over: PECOS STREET

1.4 MI E OF JCT 287, Adams, CO

Built 1989 Load: 12.8 t ADT: 38,500

E-470 SB

Good

Over: Cherry Creek

5.13 MI FROM I 25, Douglas, CO

Built 1990 Load: 13.0 t ADT: 25,990

CO RD 53/JOLEE TRL

Good

Over: SPRING CREEK

0.1 MI E of CR 744, Gunnison, CO

Built 2012 Load: 13.0 t ADT: 168

US 160 ML

Good

Over: TRINCHERA CREEK

23.3 MI E OF JCT US 350, Las Animas, CO

Built 1999 Load: 13.0 t ADT: 170

COUNTY ROAD 23

Good

Over: TRIB. OF SPRING CREEK

500 FT SOUTH COUNTY RD. W, Kit Carson, CO

Built 1960 Load: 13.2 t ADT: 91

COUNTY ROAD FF

Good

Over: ROCKY FORD HIGHLINE CANA

.8 MI W OF CR 14, Otero, CO

Built 1966 Load: 13.2 t ADT: 26

I 76 ML EBND

Good

Over: PECOS STREET

1.4 MI E OF JCT 287, Adams, CO

Built 1989 Load: 13.7 t ADT: 38,500

County Road RR

Good

Over: Dry Willow Creek

0.95 Mi N of Co Rd 24.5, Yuma, CO

Built 1965 Load: 13.7 t ADT: 38

COUNTY ROAD NN

Good

Over: S.FORK ARIKAREE RIVER

2.4 MILES WEST OF ROAD 4, Kit Carson, CO

Built 1959 Load: 14.0 t ADT: 10

COUNTY ROAD LL

Good

Over: FARMERS OXFORD DITCH

.6 MI W OF SH 167, Otero, CO

Built 1966 Load: 14.0 t ADT: 258

County Road 64

Good

Over: Poudre Valley Canal

0.9 Mi. E. of Co. Rd. 11, Larimer, CO

Built 2003 Load: 14.2 t ADT: 1,565

COUNTY ROAD SS

Good

Over: FT. LYON CANAL

.5 MI E OF CR 3, Prowers, CO

Built 1960 Load: 14.4 t ADT: 167

US 6 ML

Good

Over: CLEAR CREEK

0.1 Mi S of SH58, Jefferson, CO

Built 1999 Load: 14.5 t ADT: 28,000

RAMP/WASHINGTON ST

Good

Over: RAMP TO SB I-25 R

MOUSETRAP IN DENVER, Denver, CO

Built 1993 Load: 14.6 t ADT: 121,000

WINDING ROAD 788

Good

Over: MINERAL CREEK

43 MI. S.W. GUNNISON, CO., Hinsdale, CO

Built 1957 Load: 14.6 t ADT: 47

HUMBOLDT ST

Good

Over: EAST HARVARD GULCH

HUMBOLDT & E HARVARD, Denver, CO

Built 1967 Load: 14.8 t ADT: 259

County Road 0

Good

Over: Trib. of Landsman Creek

0.15 Mi E of Co Rd GG, Yuma, CO

Built 1964 Load: 14.9 t ADT: 33

US 36 ML

Good

Over: KIOWA CREEK

12.8 MI E OF JCT I 70, Adams, CO

Built 2000 Load: 15.2 t ADT: 3,400

NO DATA ENTERED

Good

Over: RESOLUTION CREEK

NO DATA ENTERED, Eagle, CO

Built 2011 Load: 15.2 t ADT: 50

Showing 5,701-5,750 of 8,965 bridges

Related

All states → | National rankings → | Understanding conditions → | SD bridges explained →
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.