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

COUNTY ROAD 5800

Good

Over: F G LATERAL CANAL

.25 MI N OF SH 348, Montrose, CO

Built 2021 Load: 44.7 t ADT: 189

County Road 24

Good

Over: Priest Creek

0.4 Mi E of US Hwy 40, Routt, CO

Built 1998 Load: 44.7 t ADT: 108

County Road 205

Good

Over: Yampa River

0.3 Mi So of US Hwy 40, Routt, CO

Built 2006 Load: 44.7 t ADT: 475

I 25 ML SBND

Good

Over: WELD COUNTY ROAD 20

3 MI N OF SH 52-DACONO, Weld, CO

Built 2006 Load: 44.7 t ADT: 45,500

YORK STREET

Good

Over: NIVER CREEK

YORK AND CORONADO PARKWAY, Adams, CO

Built 1970 Load: 44.8 t ADT: 9,770

EB WEWATTA STREET

Good

Over: CHERRY CREEK

JUST EAST OF SPEER BLVD, Denver, CO

Built 1998 Load: 44.8 t ADT: 5,866

NEVADA AVE NB

Good

Over: CS and E RR, VAN BUREN C

0.2 MI S. OF FILLMORE ST, El Paso, CO

Built 1949 Load: 44.8 t ADT: 8,919

WOODGATE ROAD

Good

Over: UNCOMPAHGRE RIVER

4.2 MI SE OF MONTROSE, Montrose, CO

Built 1988 Load: 44.8 t ADT: 342

COUNTY ROAD RR

Good

Over: FT. LYON CANAL

JUST W OF CR 34, Bent, CO

Built 1995 Load: 45.0 t ADT: 42

US 34 ML

Good

Over: Big Thompson River

4.8 MI E OF ESTES PARK, Larimer, CO

Built 2002 Load: 45.0 t ADT: 5,800

County Road 52E

Good

Over: Pleas Valley Lake Canal

0.0 Mi E of CR 25E, Larimer, CO

Built 2007 Load: 45.0 t ADT: 1,770

I-70B RAMP A

Good

Over: TERRAIN

EB I70B Ramp TO 29 ROAD, Mesa, CO

Built 2010 Load: 45.0 t ADT: 3,555

COUNTY ROAD E.5

Good

Over: GRAND VALLEY CANAL

.2 MI W OF RD 30, Mesa, CO

Built 1995 Load: 45.0 t ADT: 4,790

SH 392 ML

Good

Over: GREELEY CANAL NO 2

4.2 MI E OF JCT SH 257, Weld, CO

Built 2003 Load: 45.0 t ADT: 8,100

CO RD 20

Good

Over: SULLIVAN DITCH

0.3 MI E OF CO RD 21, Weld, CO

Built 2012 Load: 45.0 t ADT: 1,864

WILLOW SPRINGS RD

Good

Over: TURKEY CREEK

.2 MI SOUTH OF US285, Jefferson, CO

Built 2001 Load: 45.1 t ADT: 1,497

SH 82 ML EBND

Good

Over: DRAW

NEAR ASPEN, Pitkin, CO

Built 2003 Load: 45.1 t ADT: 22,000

I 25 ML NBND

Good

Over: COUNTY ROAD 6

2 MI NO OF JCT SH7, Weld, CO

Built 2004 Load: 45.1 t ADT: 54,000

I25 ML SBND

Good

Over: WELD COUNTY ROAD 6

3.9 MI SO OF JCT SH 52, Weld, CO

Built 2004 Load: 45.1 t ADT: 54,000

HURON STREET

Good

Over: BIG DRY CREEK

.2 MI N OF 128TH AVENUE, Adams, CO

Built 2004 Load: 45.2 t ADT: 12,488

HESS ROAD

Good

Over: NEWLIN GULCH

3.95M E. OF S. HAVANA ST., Douglas, CO

Built 2012 Load: 45.2 t ADT: 7,987

38TH AVENUE

Good

Over: LENA GULCH

0.2 MI W OF KIPLING, Jefferson, CO

Built 1981 Load: 45.2 t ADT: 8,918

Arapahoe Avenue

Good

Over: Boulder Creek

0.08 Mi E of S. Broadway, Boulder, CO

Built 1988 Load: 45.3 t ADT: 10,452

HESS ROAD

Good

Over: WILDLIFE CROSSING

0.65M E. OF S. HAVANA ST., Douglas, CO

Built 2012 Load: 45.3 t ADT: 9,535

SH 82 ML EBND

Good

Over: DRAW

NEAR ASPEN, Pitkin, CO

Built 2005 Load: 45.3 t ADT: 22,000

US 160 ML

Good

Over: DRAW

30.6 MI E OF JCT SH 109, Baca, CO

Built 1995 Load: 45.4 t ADT: 250

US 36 ML

Good

Over: SOUTH BOULDER CREEK

2.4 MI E OF JCT SH 93, Boulder, CO

Built 1951 Load: 45.4 t ADT: 77,000

COUNTY ROAD 54

Good

Over: N FK LADDER CREEK

10.5 MI E JCT 385 E OF C., Cheyenne, CO

Built 1989 Load: 45.4 t ADT: 730

I 25 NB ML

Good

Over: WILDLIFE UNDERPASS

3.2 MI N OF GREENLAND RD, Douglas, CO

Built 2021 Load: 45.4 t ADT: 66,000

I 25 SB ML

Good

Over: WILDLIFE CROSSING

3.2 MI N OF GREENLAND RD, Douglas, CO

Built 2021 Load: 45.4 t ADT: 66,000

SH21B / POWERS

Good

Over: RESEARCH PARKWAY

1.2 MI N OF WOODMEN, El Paso, CO

Built 2022 Load: 45.4 t ADT: 50,000

NBND SH21B ML RAMP

Good

Over: PINE CREEK

NE COLORADO SPRINGS, El Paso, CO

Built 2005 Load: 45.4 t ADT: 18,500

I-25 NB ML

Good

Over: GREASEWOOD ARROYO

11.7 MI N OF WALSENBURG, Huerfano, CO

Built 2004 Load: 45.4 t ADT: 7,000

I 25 ML NBND

Good

Over: MISSOURI CREEK

4.2 MI N OF SH10-WLSNBRG., Huerfano, CO

Built 2011 Load: 45.4 t ADT: 6,500

County Rd 43

Good

Over: N. Fork Big Thompson

0.5 MI E of Horseshoe Rd, Larimer, CO

Built 2016 Load: 45.4 t ADT: 415

County Rd 43

Good

Over: N. Fork Big Thompson

0.7 MI E of Horseshoe Rd, Larimer, CO

Built 2016 Load: 45.4 t ADT: 415

County Rd 43

Good

Over: N. Fork Big Thompson

1.0 MI E of Horseshoe Rd, Larimer, CO

Built 2016 Load: 45.4 t ADT: 415

County Rd 43

Good

Over: N. Fork Big Thompson

1.1 MI E of Horseshoe Rd, Larimer, CO

Built 2016 Load: 45.4 t ADT: 415

West Creek Road

Good

Over: West Creek

0.3 MI W of CR 43, Larimer, CO

Built 2016 Load: 45.4 t ADT: 7

West Creek Road

Good

Over: West Creek

0.2 MI W OF CR 43, Larimer, CO

Built 2017 Load: 45.4 t ADT: 7

West Creek Road

Good

Over: West Creek

0.1 MI W OF CR 43, Larimer, CO

Built 2016 Load: 45.4 t ADT: 21

County Road 53.7

Good

Over: Salado Creek

0.8 MI S OF COUNTY LINE, Las Animas, CO

Built 2021 Load: 45.4 t ADT: 78

SH 145 ML

Good

Over: PRIEST CREEK

26 MILES N OF DOLORES, Montezuma, CO

Built 1999 Load: 45.4 t ADT: 1,800

SH 144 ML

Good

Over: BIJOU CANAL

0.5 MI E OF JCT US 34, Morgan, CO

Built 2001 Load: 45.4 t ADT: 410

County Road 25

Good

Over: Upper Platte Beaver Cnl

0.1 Mi N of Co Rd R, Morgan, CO

Built 1999 Load: 45.4 t ADT: 172

US 285 ML

Good

Over: S FK SOUTH PLATTE RVR

11 MI S. OF FAIRPLAY, Park, CO

Built 2022 Load: 45.4 t ADT: 3,000

US 50 ML

Good

Over: DRY CREEK

0.6 MI E OF JCT SH 45, Pueblo, CO

Built 2018 Load: 45.4 t ADT: 43,000

I-25 ML SBND

Good

Over: UPRR/FUTURE KENDALL PWY

1 MI N OF LOVELAND INTRCH, Weld, CO

Built 2020 Load: 45.4 t ADT: 38,000

US 85 ML NBND

Good

Over: GREELEY CANAL NO 2

At Lucerne, Weld, CO

Built 2017 Load: 45.4 t ADT: 6,000

County Road 26

Good

Over: Platte Valley Canal

0.1 Mi E of US Hwy 85, Weld, CO

Built 2017 Load: 45.4 t ADT: 116

Showing 7,851-7,900 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.