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

I25 NBND ON RAMP

Good

Over: PURGATOIRE RIVER

In TRINIDAD, Las Animas, CO

Built 2009 Load: 51.0 t ADT: 8,000

I70 FRONTAGE RD(S)

Good

Over: HORSETHIEF CREEK (S) SR

JUST E. OF DEBEQUE INTERC, Mesa, CO

Built 1980 Load: 51.0 t ADT: 161

US 34 ML

Good

Over: CAMP CREEK

8 MI. E OF BRUSH, Washington, CO

Built 2000 Load: 51.0 t ADT: 3,300

County Road AA

Good

Over: Arikaree River

2.5 Mi. N of Co.Rd. 11, Yuma, CO

Built 1999 Load: 51.0 t ADT: 29

US 385 ML

Good

Over: SOUTH LADDER CREEK

6 MI S OF US 40, Cheyenne, CO

Built 1997 Load: 51.2 t ADT: 730

COUNTY ROAD 126

Good

Over: N FORK OF S PLATTE RIVER

NW TOWN OF BUFFALO CREEK, Jefferson, CO

Built 1997 Load: 51.2 t ADT: 1,415

LaPorte Avenue

Good

Over: New Mercer Canal

0.2 Mi E of Taft Hill, Larimer, CO

Built 2023 Load: 51.2 t ADT: 9,091

IRR# US 491 ML

Good

Over: CHIMNEY ROCK DRAW

5.6 MI N OF NEW MEXICO, Montezuma, CO

Built 1957 Load: 51.2 t ADT: 4,000

I 70 ML WBND

Good

Over: RAMP TO GRIZZLY CREEK

GRIZZLY CREEK INTERCHANGE, Garfield, CO

Built 1988 Load: 51.3 t ADT: 8,500

WASHINGTON AVENUE

Good

Over: CATLIN CANAL

IN CITY OF ROCKY FORD, Otero, CO

Built 1978 Load: 51.3 t ADT: 1,550

County Road 23

Good

Over: Riverside Canal

0.2 Mi N of Co Rd Y, Morgan, CO

Built 2003 Load: 51.4 t ADT: 26

N. Wilson Avenue

Good

Over: Big Thompson River

0.45 Mi N of W. 1st St., Larimer, CO

Built 1999 Load: 51.5 t ADT: 8,814

Wilson Avenue

Good

Over: Big Barnes Ditch

0.8 Mi N of West First St, Larimer, CO

Built 2001 Load: 51.5 t ADT: 6,213

County Road 39

Good

Over: New Cache La Poudre Cana

150 Ft N of St Hwy 392, Weld, CO

Built 1990 Load: 51.5 t ADT: 2,662

County Road 21

Good

Over: Greeley Canal No. 2

0.3 Mi N of St Hwy 392, Weld, CO

Built 2013 Load: 51.5 t ADT: 1,819

EAST CALEY DR

Good

Over: PINEY CREEK

0.1 MI NE OF E. EUCLID DR, Arapahoe, CO

Built 2012 Load: 51.6 t ADT: 249

Co Rd 28

Good

Over: Dead Horse Draw

150 Ft N of Co Rd Z, Morgan, CO

Built 2014 Load: 51.6 t ADT: 89

SADDLEROCK LN.

Good

Over: PINEY CREEK TRIB

200 FT E OF LIVERPOOL ST, Arapahoe, CO

Built 1998 Load: 51.7 t ADT: 1,730

SH 52 ML

Good

Over: WILDCAT CREEK

8 MI N OF I-76 Ft Morgan, Morgan, CO

Built 2009 Load: 51.7 t ADT: 1,200

County Road 21

Good

Over: Settlers Ditch

0.4 Mi. No. of Co. Rd. 32, Sedgwick, CO

Built 1999 Load: 51.7 t ADT: 1

County Road 31

Good

Over: Peterson Ditch

0.6 Mi. No. of Co. Rd. 32, Sedgwick, CO

Built 1999 Load: 51.7 t ADT: 21

72ND AVENUE

Good

Over: LITTLE DRY CREEK

72ND AND RALEIGH, Adams, CO

Built 2017 Load: 51.8 t ADT: 14,357

EBND I70 OFF RAMP

Good

Over: DENVER ROCK ISLAND RR

0.4 MI E of MONACO ST., Denver, CO

Built 2020 Load: 51.8 t ADT: 6,500

FARAWAY PLACE

Good

Over: EAST PLUM CREEK

ENT COLUMBINE OPEN SPACE, Douglas, CO

Built 2016 Load: 51.8 t ADT: 65

I 25 ML

Good

Over: WILDLIFE UNDERPASS

0.3 MI N OF GREENLAND RD, Douglas, CO

Built 2021 Load: 51.8 t ADT: 66,000

Willow Road

Good

Over: Monument Creek

0.35 Mi N of Baptist Rd, El Paso, CO

Built 2022 Load: 51.8 t ADT: 1,495

US 285 ML SBND

Good

Over: ELK CREEK ROAD

SHAFFERS CROSSING, Jefferson, CO

Built 2010 Load: 51.8 t ADT: 9,500

JASMINE ROAD

Good

Over: COAL CREEK

Just W of CR 5800, Montrose, CO

Built 2016 Load: 51.8 t ADT: 488

SH 78 ML

Good

Over: NORTH ST CHARLES RIVER

0.5 MI. E. OF BEULAH, Pueblo, CO

Built 2008 Load: 51.8 t ADT: 990

I70 ML

Good

Over: 40TH AVE.

40th & Youngsfield, Jefferson, CO

Built 2009 Load: 51.9 t ADT: 104,000

Sky Pond Drive

Good

Over: Greeley Loveland Canal

0.1 Mi W of Centerra Pkwy, Larimer, CO

Built 2005 Load: 51.9 t ADT: 4,797

County Road 1

Good

Over: Larimer County Canal

0.5 Miles N of Co Rd 48, Larimer, CO

Built 2001 Load: 51.9 t ADT: 473

N. 119th St (Cr 3)

Good

Over: St. Vrain Creek

0.5 Mi N of Co Rd 20, Boulder, CO

Built 1988 Load: 52.1 t ADT: 3,288

ILIFF AVE

Good

Over: GOLDSMITH GULCH

E OF MONACO PKWY, Denver, CO

Built 1971 Load: 52.1 t ADT: 1,550

US 85 ML

Good

Over: DRAW

5.2 MI S OF WYOMING S.L., Weld, CO

Built 2012 Load: 52.1 t ADT: 3,000

COUNTY ROAD 387

Good

Over: HARDSCRABBLE CREEK

Just S OF SH 96, Custer, CO

Built 1993 Load: 52.2 t ADT: 74

18.5 Road

Good

Over: LITTLE SALT WASH

0.1 SOUTH OF RD L, Mesa, CO

Built 2021 Load: 52.2 t ADT: 531

RAMP TO I 25 NBND

Good

Over: COUNTY LINE ROAD R

.85 MI N OF JCT I-25/470, Douglas, CO

Built 1991 Load: 52.3 t ADT: 85,500

Jerome Street

Good

Over: Lake Canal

200 Ft. N. of E Vine Dr., Larimer, CO

Built 2004 Load: 52.3 t ADT: 728

US 550 ML

Good

Over: BEAR CREEK

1.5 Mi S of OURAY, Ouray, CO

Built 2010 Load: 52.3 t ADT: 2,100

I 25 ML

Good

Over: EAST PLUM CREEK

3.9 MI N OF EL PASO-DOUGL, Douglas, CO

Built 1978 Load: 52.4 t ADT: 66,000

US 40 ML

Good

Over: DRAW

0.3 MI E OF WILDHORSE, Cheyenne, CO

Built 1933 Load: 52.5 t ADT: 3,300

DECATUR STREET

Good

Over: LAKEWOOD GULCH

S DECATUR ST AT HOWARD PL, Denver, CO

Built 2013 Load: 52.5 t ADT: 4,940

E. 37th Street

Good

Over: Dry Creek

0.1 Mi E. of Hwy 287, Larimer, CO

Built 2021 Load: 52.5 t ADT: 5,457

County Road 2

Good

Over: Gordon Creek

2.5 M. E. of Co. Rd. M, Washington, CO

Built 1995 Load: 52.6 t ADT: 6

COUNTY ROAD D.5

Good

Over: CONEJOS RIVER

4.3 MI SW OF LAS MESITAS, Conejos, CO

Built 1995 Load: 52.7 t ADT: 176

I25 NBND ML

Good

Over: UNIVERSITY BLVD.

IN DENVER, Denver, CO

Built 2003 Load: 52.7 t ADT: 98,500

Vista Parkway

Good

Over: Coal Creek

0.5 Mi E of Co Line Rd, Weld, CO

Built 2004 Load: 52.7 t ADT: 8,974

FDR 114

Good

Over: MIDDLE ST. VRAIN CREEK

.2 MI W OF CO HWY 72, Boulder, CO

Built 1952 Load: 52.8 t ADT: 198

SH 83 ML

Good

Over: HIGHLINE CANAL TRAIL

250 FT W of E MISSISSIPPI, Denver, CO

Built 2022 Load: 52.8 t ADT: 29,000

Showing 8,101-8,150 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.