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

CO RD 327/AVONDALE

Good

Over: BESSEMER DITCH

0.5 MI S OF OLSON RD, Pueblo, CO

Built 1996 Load: 34.2 t ADT: 168

US 85 ML SBND

Good

Over: LARIMER-WELD CANAL

0.7 MI S OF JCT SH 14, Weld, CO

Built 1966 Load: 34.2 t ADT: 4,250

US 285 ML

Good

Over: ROCK CREEK

3 MI S OF ALAMOSA, Alamosa, CO

Built 1960 Load: 34.3 t ADT: 5,900

2ND AVENUE

Good

Over: HIGHLINE CANAL

0.2 MI E OF PEORIA ST, Arapahoe, CO

Built 1988 Load: 34.3 t ADT: 1,805

WINDERMERE ST

Good

Over: LITTLES CREEK

0.04 MI N OF CALEY AVE, Arapahoe, CO

Built 2010 Load: 34.3 t ADT: 621

83rd St (CO Rd 23)

Good

Over: Little Thompson River

1.8 Mi N of Woodland, Boulder, CO

Built 2017 Load: 34.3 t ADT: 2,443

Marshall Road

Good

Over: Coal Creek

0.07 Mi N of Creek View, Boulder, CO

Built 2022 Load: 34.3 t ADT: 1,867

3025: THE GATE BRI

Good

Over: Lake Fork Gunnison River

27 mi SW of Gunnison, CO, Chaffee, CO

Built 2013 Load: 34.3 t ADT: 25

VIRGINIA AVENUE

Good

Over: WEIR GULCH

E OF SHERIDAN AT 500 BLOC, Denver, CO

Built 1976 Load: 34.3 t ADT: 564

I 70 ML WBND

Good

Over: HILLSIDE

1.9 MI E OF GLNWD SPGS, Garfield, CO

Built 1986 Load: 34.3 t ADT: 8,500

I 70 ML WBND

Good

Over: ACCESS RD,GRIZZLY CREEK

GRZLY CRK-RST, GLNWD CNYN, Garfield, CO

Built 1986 Load: 34.3 t ADT: 8,500

NO DATA ENTERED

Good

Over: WILLIAMS FORK

JUST EAST OF HORSESHOE CG, Grand, CO

Built 1950 Load: 34.3 t ADT: 50

SH 69 ML

Good

Over: MILLIGAN ARROYO

3.2 MILES NW OF GARDNER, Huerfano, CO

Built 2018 Load: 34.3 t ADT: 420

SIMMS STREET

Good

Over: RALSTON CREEK

0.3 MI S OF 72ND AVENUE, Jefferson, CO

Built 1990 Load: 34.3 t ADT: 9,302

KIPLING STREET

Good

Over: BEAR CREEK

.5 MI S OF MORRISON RD, Jefferson, CO

Built 2006 Load: 34.3 t ADT: 4,249

I 25 ML SBND

Good

Over: BNSF RR

0.5 MI N OF JCT SH 14, Larimer, CO

Built 1966 Load: 34.3 t ADT: 19,000

COUNTY ROAD 5500

Good

Over: BIG SANDY WASH

.5 MI N OF HICKORY RD, Montrose, CO

Built 2013 Load: 34.3 t ADT: 141

CR611 / BOONE RD

Good

Over: COLORADO CANAL

0.1 MI N of SH96, Pueblo, CO

Built 2021 Load: 34.3 t ADT: 178

Weld County Pkwy

Good

Over: Cache La Poudre River

0.3 Mi S of CR 60.5, Weld, CO

Built 2016 Load: 34.3 t ADT: 8,531

I 70 ML WBND

Good

Over: WOLF CREEK

2 MI W OF JCT STRASBURG S, Arapahoe, CO

Built 1993 Load: 34.4 t ADT: 8,500

I 70 ML EBND

Good

Over: WOLF CREEK

2.8 MI E OF RAMP TO US 36, Arapahoe, CO

Built 1993 Load: 34.4 t ADT: 8,500

COUNTY ROAD 387

Good

Over: SOUTH HARDSCRABBLE CREEK

5.0 MI SE OF GREENWOOD, Custer, CO

Built 1990 Load: 34.4 t ADT: 31

County Road 71

Good

Over: N. Sterling Outlet Canal

0.7 Mi N of Co Rd 66, Logan, CO

Built 1993 Load: 34.4 t ADT: 99

County Road 85

Good

Over: Harmony No. 1 Canal

1.4 Mi N of US Hwy 138, Logan, CO

Built 2006 Load: 34.4 t ADT: 25

County Road 13

Good

Over: Riverside Canal

0.2 Mi N of Co Rd W.5, Morgan, CO

Built 1997 Load: 34.4 t ADT: 93

POLECAT LANE

Good

Over: PEDESTRIAN/SKIER

CITY STREET - POLECAT, San Miguel, CO

Built 1990 Load: 34.4 t ADT: 73

RAMP TO I 70 WBND

Good

Over: RAMP TO CHAMBERS ROAD R

E / CHAMBERS RD,N / I-70, Adams, CO

Built 1993 Load: 34.5 t ADT: 33,000

CHAMBERS RD SB

Good

Over: NEWLIN GULCH

.4 M NW NEWLIN GULCH BLVD, Douglas, CO

Built 2009 Load: 34.5 t ADT: 13,454

MILLER STREET

Good

Over: VAN BIBBER CREEK

JUST S OF 58TH AVENUE, Jefferson, CO

Built 2007 Load: 34.5 t ADT: 95

COUNTY ROAD 122

Good

Over: SOUTH TURKEY CREEK

3.75 MI SOUTH OF TINYTOWN, Jefferson, CO

Built 2000 Load: 34.5 t ADT: 1,031

County Road 58

Good

Over: South Platte River

0.6 Mi E of Hemlock St, Weld, CO

Built 1990 Load: 34.5 t ADT: 8,636

BATES AVE

Good

Over: LOCAL DRAINAGE

.5 MI SE OF TOWER RD, Arapahoe, CO

Built 1984 Load: 34.6 t ADT: 2,121

COUNTRY CLUB DR.

Good

Over: BEAR CREEK

JUST N OF PERRY PARK BLVD, Douglas, CO

Built 2004 Load: 34.6 t ADT: 214

COUNTY ROAD 65

Good

Over: COMANCHE CREEK

1.1 MI S OF COUNTY RD 150, Elbert, CO

Built 1987 Load: 34.6 t ADT: 45

COUNTY ROAD 14

Good

Over: MID FK SOUTH PLATTE RVR

0.3 MI W OF JCT SH 9, Park, CO

Built 1995 Load: 34.6 t ADT: 796

County Rd 4

Good

Over: Tribu. of N. Sand Creek

0.45 Mi. East of Co. Rd., Yuma, CO

Built 1997 Load: 34.6 t ADT: 14

County Road K

Good

Over: Arikaree River

0.80 Mi N of Co Rd 10, Yuma, CO

Built 1994 Load: 34.6 t ADT: 17

County Road KK

Good

Over: Black Wolf Creek

0.65 Mi S of Co Rd 22, Yuma, CO

Built 1993 Load: 34.6 t ADT: 168

County Road KK

Good

Over: S. Fork Dry Willow Creek

0.75 Mi N of Co Rd 24, Yuma, CO

Built 1993 Load: 34.6 t ADT: 174

County Road KK.5

Good

Over: N. Fork Republican River

0.25 Mi N of US Hwy 34, Yuma, CO

Built 1994 Load: 34.6 t ADT: 39

County Road U

Good

Over: Arikaree River

3.10 Mi N of Co Rd 10, Yuma, CO

Built 1995 Load: 34.6 t ADT: 72

RAINBOW AVENUE

Good

Over: HOFFMAN DRAINAGE

0.1 MI S OF 88TH AVE., Adams, CO

Built 2017 Load: 34.7 t ADT: 1,656

DEVONSHIRE BLVD

Good

Over: HOFFMAN DRAINAGE

0.2 MI S OF 88TH AVE., Adams, CO

Built 2020 Load: 34.7 t ADT: 8,171

IRR BIA RTE 163

Good

Over: DEVIL CREEK

1.6 KM SW OF CHIMNEY ROCK, Archuleta, CO

Built 1987 Load: 34.7 t ADT: 10

US 36 ML

Good

Over: RAMP B & BIKEPATH

1.5 MI E. OF SUPERIOR, Boulder, CO

Built 2001 Load: 34.7 t ADT: 68,000

SH 92 ML

Good

Over: UP RR (HIGHWAY OVERPASS)

14.2 MI NE OF DELTA, Delta, CO

Built 2017 Load: 34.7 t ADT: 4,100

STEELE ST.

Good

Over: I 70 ML

0.47 MI W of CO BLVD, Denver, CO

Built 2020 Load: 34.7 t ADT: 19,000

RAMP TO I 25 SBND

Good

Over: RAMP TO I 25 NBND R

I25, US40, SH33, INTCHNG, Denver, CO

Built 1988 Load: 34.7 t ADT: 117,500

US 6 ML

Good

Over: EAGLE RIVER

6.5 MI E OF EAGLE, Eagle, CO

Built 2001 Load: 34.7 t ADT: 3,400

US 40 ML

Good

Over: BIG MUDDY CREEK

15.9 MI SE OF JCT SH 14, Grand, CO

Built 1988 Load: 34.7 t ADT: 2,300

Showing 7,001-7,050 of 8,965 bridges

Related

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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.