State profile · Below median Poor share

Colorado bridge safety

Condition ratings, load ratings, and Poor-condition data for every public highway bridge in Colorado, based on the FHWA National Bridge Inventory.

8,965
Public bridges
32.0%
Good condition
4.3%
Poor condition

Data updated May 2026

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 whose lowest applicable component is rated 0-4

-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 - Poor-condition share 14.4%
National avg

Lower is better. Bar maxes at 30% (worst-state ceiling). National average sits at 7.0%.

Condition Distribution

Colorado35.3%59.9%GoodFairPoor
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 by Poor-condition share (lower share = better)

States are ranked by the share of bridges whose lowest applicable component rating is 4 or below. This describes recorded condition; it does not measure funding effectiveness or live crossing safety. States here sit immediately above and below Colorado on the same metric.

TN

Tennessee

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

MD

Maryland

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

CO

Colorado

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

OR

Oregon

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

OH

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 the portal's composite display score. Inspection intervals are risk-based under current NBIS rules.

County Road 59

Poor

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

Poor

Over: NORTH CRESTONE CREEK

IN TOWN OF CRESTONE, Saguache, CO

Built 1991 Load: 2.3 t ADT: 65

CO Rd 32

Poor

Over: Feeder Ditch

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

Built 1970 Load: 2.7 t ADT: 7

POTOMAC STREET

Poor

Over: OBRIAN CANAL

0.2 MILE NORTH OF SH 2, Adams, CO

Built 1940 Load: 3.8 t ADT: 190

88TH AVENUE

Poor

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

Railroad Drive

Poor

Over: Union Ditch

500 Ft S of W Taylor Ave, Weld, CO

Built 1930 Load: 32.7 t ADT: 202

County Road 33

Poor

Over: New Cache La Poudre Cana

50 Ft No of St Hwy 392, Weld, CO

Built 1971 Load: 32.7 t ADT: 2,877

County Road 34

Poor

Over: St. Vrain Creek

0.3 Mi E of Co Rd 17, Weld, CO

Built 1960 Load: 32.7 t ADT: 1,258

County Road 76.5

Poor

Over: Larimer and Weld Canal

30 Ft W of Co Rd 23, Weld, CO

Built 1930 Load: 32.7 t ADT: 304

Blake Street

Poor

Over: N. Fork Republican River

0.1 M N of SH 34, Yuma, CO

Built 1980 Load: 32.7 t ADT: 3,169

US 85 ML NBND

Poor

Over: CACHE LA POUDRE RIVER

N. EDGE OF GREELEY, Weld, CO

Built 1962 Load: 32.8 t ADT: 11,000

COUNTY ROAD 33

Poor

Over: HELL CREEK

0.7 MILE SOUTH OF ROAD 3K, Lincoln, CO

Built 1955 Load: 33.0 t ADT: 20

COUNTY ROAD Y

Poor

Over: ROCKY FORD HIGHLINE CANA

JUST E OF CR 16, Otero, CO

Built 1964 Load: 33.3 t ADT: 8

COUNTY ROAD 23

Poor

Over: S. FORK REPUBLICAN RIVER

2 MI NORTH COUNTY RD AA, Kit Carson, CO

Built 1963 Load: 33.9 t ADT: 35

COUNTY ROAD 32

Poor

Over: ADOBE CREEK TRIB

0.2 MILE NORTH OF ROAD J, Lincoln, CO

Built 1956 Load: 34.3 t ADT: 73

COUNTY ROAD UU

Poor

Over: FT. LYON CANAL

1.8 MI W OF CR 8, Prowers, CO

Built 1984 Load: 34.7 t ADT: 36

US 36 ML

Poor

Over: DRAW

2.4 MI E OF JCT I 70, Arapahoe, CO

Built 1931 Load: 35.2 t ADT: 3,400

I 270 ML WBND

Poor

Over: SOUTH PLATTE RIVER

COMMERCE CITY, Adams, CO

Built 1969 Load: 35.3 t ADT: 48,500

I 76 ML EBND

Poor

Over: YORK STREET

1.4 MI NE OF JCT I 25, Adams, CO

Built 1967 Load: 35.7 t ADT: 42,000

County Road 5

Poor

Over: Piceance Creek

9.9 Mi S of St Hwy 64, Rio Blanco, CO

Built 1970 Load: 35.9 t ADT: 325

I 270 ML EBND

Poor

Over: SOUTH PLATTE RIVER

COMMERCE CITY, Adams, CO

Built 1969 Load: 36.2 t ADT: 48,500

US 40 ML

Poor

Over: CROOKED CREEK

W. EDGE OF TABERNASH, Grand, CO

Built 1941 Load: 36.7 t ADT: 11,000

SLATE RIVER ROAD

Poor

Over: NO DATA ENTERED

8 MILES NW CRESTED BUTTE, Gunnison, CO

Built 2006 Load: 36.9 t ADT: 15

SH 348 ML

Poor

Over: IRONSTONE CANAL

4.5 MI W of Olathe, Montrose, CO

Built 1963 Load: 37.2 t ADT: 590

County Road 62

Poor

Over: Elk River

0.4 Mi W of Co Rd 129, Routt, CO

Built 1982 Load: 37.6 t ADT: 397

I 70 FRONTAGE RD

Poor

Over: ADOBE CREEK SR

2.5 MI E OF FRUITA INT, Mesa, CO

Built 1969 Load: 38.0 t ADT: 2,532

COUNTY RD 89.5

Poor

Over: PATTON ARROYO

0.7 MI S OF SH 160, Las Animas, CO

Built 1940 Load: 38.3 t ADT: 18

160TH AVENUE

Poor

Over: SEEP CANAL

0.6 MILE EAST OF I-76, Adams, CO

Built 1960 Load: 38.8 t ADT: 1,539

BRADBURY-KREBS RD

Poor

Over: SPRING GULCH

0.9 MI S OF 38TH AVENUE, Adams, CO

Built 1977 Load: 38.9 t ADT: 78

HANKS CROSSING RD

Poor

Over: MUDDY CREEK

2.5 MI N OF US36, Adams, CO

Built 1960 Load: 39.7 t ADT: 46

I 270 ML EBND

Poor

Over: DITCH RD,BURLINGTON CANA

IN COMMERCE CITY, Adams, CO

Built 1969 Load: 40.0 t ADT: 48,500

SH 392 ML

Poor

Over: CACHE LA POUDRE RIVER

2 MI E OF JCT I 25, Larimer, CO

Built 1959 Load: 40.1 t ADT: 19,000

COUNTY ROAD 321

Poor

Over: HUERFANO-CUCHARAS DITCH

3 MI SE OF BROADACRE RD, Pueblo, CO

Built 1958 Load: 40.2 t ADT: 54

I 270 ML WBND

Poor

Over: DITCH RD,BURLINGTON CANA

IN COMMERCE CITY, Adams, CO

Built 1969 Load: 41.0 t ADT: 48,500

US 50 ML EBND

Poor

Over: APISHAPA RIVER

4.2 MI EAST OF FOWLER, Otero, CO

Built 1957 Load: 41.5 t ADT: 2,350

US 36 ML WBND

Poor

Over: BOULDER CREEK

28th STREET IN BOULDER, Boulder, CO

Built 1952 Load: 42.0 t ADT: 18,000

I 70 ML WBND

Poor

Over: COUNTY ROAD 201

6.2 MI W OF JCT DEERTRAIL, Arapahoe, CO

Built 1964 Load: 43.3 t ADT: 6,000

I 70 ML EBND

Poor

Over: COUNTY ROAD 201

6.1 MI E OF JCT US 36 (BY, Arapahoe, CO

Built 1964 Load: 43.3 t ADT: 6,000

County Road 4

Poor

Over: Big Hole Gulch

19.6 Mi West of St Hwy 13, Moffat, CO

Built 1950 Load: 43.4 t ADT: 167

I 70 ML WBND

Poor

Over: COUNTY ROADS 31N,125

2 MI W OF JCT SH 79, Arapahoe, CO

Built 1960 Load: 44.3 t ADT: 13,000

I 70 ML EBND

Poor

Over: COUNTY ROADS 31N,125

9.4 MI E OF JCT US 36, Arapahoe, CO

Built 1960 Load: 44.3 t ADT: 13,000

I 76 ML EBND

Poor

Over: MARSHALL STREET

.75 MI E. OF WADSWORTH, Jefferson, CO

Built 1980 Load: 44.3 t ADT: 38,000

I 70 ML WBND

Poor

Over: COUNTY ROADS 26N,105

2 MI E OF WATKINS INTERCH, Arapahoe, CO

Built 1960 Load: 44.4 t ADT: 13,000

I 70 ML EBND

Poor

Over: COUNTY ROADS 26N,105

2 MI E OF WATKINS INTERCH, Arapahoe, CO

Built 1960 Load: 44.4 t ADT: 13,000

I 70 ML WBND

Poor

Over: COUNTY ROADS 28N,113

5 MI W OF JCT SH 79, Arapahoe, CO

Built 1960 Load: 44.4 t ADT: 13,000

I 70 ML EBND

Poor

Over: COUNTY ROADS 28N,113

6.4 MI E OF JCT US 36, Arapahoe, CO

Built 1960 Load: 44.4 t ADT: 13,000

PICADILLY ROAD

Poor

Over: BURLINGTON CANAL

.2 MI S OF 144TH AVENUE, Adams, CO

Built 1992 Load: 44.6 t ADT: 2,480

BIGHORN ROAD

Poor

Over: GORE CREEK

.15 MI EAST OF I70, Eagle, CO

Built 1961 Load: 46.4 t ADT: 243

I 76 ML WBND

Poor

Over: CLEAR CREEK

1.1 M W OF JCT SH 95, Jefferson, CO

Built 1984 Load: 47.6 t ADT: 38,000

INVERNESS DR SOUTH

Poor

Over: COTTONWOOD CREEK

INTER OF INVERNES WAY, Douglas, CO

Built 1991 Load: 48.4 t ADT: 2,037

I 76 ML WBND

Poor

Over: MARSHALL STREET

IN ARVADA, Jefferson, CO

Built 1980 Load: 52.8 t ADT: 38,000

I 70 ML

Poor

Over: CLEAR CREEK

0.4 MI NE OF JCT US 40, Clear Creek, CO

Built 1965 Load: 59.7 t ADT: 37,000

County Road 66

Poor

Over: Duck Creek

0.9 Mi E of Co Rd 81, Logan, CO

Built 1993 Load: 60.7 t ADT: 44

I 225 ML

Poor

Over: GOLDSMITH GULCH

IN DENVER, Denver, CO

Built 1971 Load: 68.3 t ADT: 128,000

SH 133 ML

Poor

Over: CRYSTAL RIVER

2 MI S OF REDSTONE, Pitkin, CO

Built 1966 Load: 81.8 t ADT: 1,600

Showing 8,901-8,950 of 8,965 bridges

Related

All states → | National rankings → | Understanding conditions → | Retired SD term explained →
Data sourced from the FHWA National Bridge Inventory (NBI), latest released cycle. See our methodology for details. Retrieved and formatted by PlainBridges.

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). Poor condition is an inspection-record category, not a closure or unsafe-to-cross designation. Consult the bridge owner for current status.

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.