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%.

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.

All Bridges in Colorado

US 287 ML

Fair

Over: FARMERS HIGHLINE CANAL

3.9 MI NO OF JCT US 36, Adams, CO

Built 1951 Load: 29.0 t ADT: 27,000

PRINCE STREET

Fair

Over: RAILROAD AND LRT

.5 MI S OF LITTLETON BLVD, Arapahoe, CO

Built 1986 Load: 29.0 t ADT: 12,671

COUNTY ROAD 175

Fair

Over: ARKANSAS RIVER

300 Feet NE of SH 291, Chaffee, CO

Built 1994 Load: 29.0 t ADT: 1,099

SH 67 ML

Fair

Over: EAST PLUM CREEK

JUST S. OF SEDALIA, Douglas, CO

Built 1963 Load: 29.0 t ADT: 5,300

I 70 ML WBND

Fair

Over: BEARD CREEK TRL

W. END OF EDWARDS, Eagle, CO

Built 1970 Load: 29.0 t ADT: 13,000

I 70 ML WBND

Fair

Over: BIG HORN RD

E. VAIL INTERCHANGE, Eagle, CO

Built 1975 Load: 29.0 t ADT: 12,500

I 70 ML WBND

Fair

Over: I-70 FRONTAGE RD

EAST END OF VAIL, Eagle, CO

Built 1975 Load: 29.0 t ADT: 12,500

CO RD 317

Fair

Over: SLATE RIVER

0.5 MI N OF CRESTED BUTTE, Gunnison, CO

Built 1983 Load: 29.0 t ADT: 5,823

SH 133 ML

Fair

Over: EAST MUDDY CREEK

7 MI W OF MCCLURE PASS, Gunnison, CO

Built 1978 Load: 29.0 t ADT: 930

CR 340/BEAR CRK

Fair

Over: CUCHARAS RIVER

0.1 MI SOUTH OF US160, Huerfano, CO

Built 1989 Load: 29.0 t ADT: 140

COUNTY ROAD 330

Fair

Over: BEAR CREEK

0.1 MI S OF I-25 Business, Huerfano, CO

Built 1991 Load: 29.0 t ADT: 217

I 25 ML NBND

Fair

Over: CUCHARAS RIVER

0.8 MI NO OF JCT BUS RT, Huerfano, CO

Built 1963 Load: 29.0 t ADT: 5,000

SH 1 ML

Fair

Over: LARIMER CO CANAL

2.2 MI N OF FT COLLINS, Larimer, CO

Built 1911 Load: 29.0 t ADT: 7,900

US 34 ML

Fair

Over: LOUDEN DITCH

2.2 M. WEST OF LOVELAND, Larimer, CO

Built 1933 Load: 29.0 t ADT: 8,300

COUNTY ROAD 38

Fair

Over: ARIKAREE RIVER

0.7 MILES S OF ROAD 3X, Lincoln, CO

Built 1990 Load: 29.0 t ADT: 18

I 70 ML EBND

Fair

Over: GRAND VALLEY CANAL

2.2 MI W OF HORIZON DRIVE, Mesa, CO

Built 1965 Load: 29.0 t ADT: 11,500

I 70 ML EBND

Fair

Over: HORIZON DRIVE

E GRAND JUNCT. INTCHNG, Mesa, CO

Built 1965 Load: 29.0 t ADT: 11,500

SH 340 ML WBND

Fair

Over: REDLANDS POWER CANAL

W. EDGE OF GRAND JUNCTION, Mesa, CO

Built 1974 Load: 29.0 t ADT: 6,500

IRR# US 160 ML

Fair

Over: SAN JUAN RIVER

0.2 MI NO OF NEW MEXICO S, Montezuma, CO

Built 1961 Load: 29.0 t ADT: 1,600

County Road 10

Fair

Over: White River

0.08 Mi East of Co Rd 8, Rio Blanco, CO

Built 1930 Load: 29.0 t ADT: 164

County Road 12

Fair

Over: North Fork White River

0.08 Mi East of Co Rd 8, Rio Blanco, CO

Built 1930 Load: 29.0 t ADT: 114

COUNTY ROAD 4W

Fair

Over: FARMERS UNION CANAL

.5 N OF CR 8N, Rio Grande, CO

Built 1962 Load: 29.0 t ADT: 122

COUNTY ROAD 30

Fair

Over: FT. LYON CANAL

3.5 MI N of US 50, Bent, CO

Built 1950 Load: 29.1 t ADT: 40

Dillon Road

Fair

Over: Coal Creek & Ped Tra

0.5 Mi E of McCaslin Blvd, Boulder, CO

Built 1993 Load: 29.1 t ADT: 15,732

ALLEY

Fair

Over: EAST HARVARD GULCH

BTWN STEELE AND ADAMS, Denver, CO

Built 1967 Load: 29.1 t ADT: 75

US 24 ML WBND

Fair

Over: EL PASO BLV,FOUNTAIN CRK

IN MANITOU SPRINGS, El Paso, CO

Built 1969 Load: 29.1 t ADT: 13,500

I 70 ML EBND

Fair

Over: ANVIL POINTS ROAD

8.5 MI EAST OF PARACHUTE, Garfield, CO

Built 1978 Load: 29.1 t ADT: 10,000

FDR 125 SERVICE RD

Fair

Over: ARAPAHO CREEK

11.0 MI SOUTH OF US 34, Grand, CO

Built 1930 Load: 29.1 t ADT: 1

COUNTY ROAD 4

Fair

Over: DUCK CREEK

1.0 MILES NORTH OF ROAD V, Kit Carson, CO

Built 1964 Load: 29.1 t ADT: 201

County Road 80

Fair

Over: N. Poudre Canal/Park Cr.

4.9 Mi E of US Hwy 287, Larimer, CO

Built 1970 Load: 29.1 t ADT: 59

I 25 ML SBND

Fair

Over: RR SPUR

14.3 MI SO OF AGUILAR RD, Las Animas, CO

Built 1969 Load: 29.1 t ADT: 6,000

SH 109 ML

Fair

Over: MCMAHON ARROYO

8.5 MILES NO OF BENT-OTER, Otero, CO

Built 1972 Load: 29.1 t ADT: 350

County Road 67

Fair

Over: S F Williams Fork River

5.0 Mi S of Co Rd 29, Routt, CO

Built 1993 Load: 29.1 t ADT: 24

County Road 24.5

Fair

Over: Platte Valley Canal

50 Ft E of Co Rd 25.5, Weld, CO

Built 2010 Load: 29.1 t ADT: 93

I 70 ML WBND

Fair

Over: HIGHLINE CANAL

0.2 Mi E OF TOWER ROAD, Adams, CO

Built 1964 Load: 29.2 t ADT: 17,000

I76 ML EBND

Fair

Over: THIRD CREEK

JUST N of 470 PKWAY, Adams, CO

Built 2002 Load: 29.2 t ADT: 21,000

IRVING ST

Fair

Over: SANDERSON GULCH

BTWN IOWA AND MEXICO, Denver, CO

Built 1967 Load: 29.2 t ADT: 5,723

WILLOW PARK DR

Fair

Over: SULPHUR GULCH

.1 MI S OF MAIN ST, Douglas, CO

Built 1995 Load: 29.2 t ADT: 3,408

I 70 EAGLE SPUR

Fair

Over: EAGLE RIVER

EAGLE EBY CRK RD, Eagle, CO

Built 1972 Load: 29.2 t ADT: 19,000

I 25 ML NBND

Fair

Over: WOODMEN ROAD

1.0 MI N OF JCT I-25 BUS, El Paso, CO

Built 2002 Load: 29.2 t ADT: 62,000

I 25 ML SBND

Fair

Over: WOODMEN ROAD

1.5 MI S OF JCT SH 83, El Paso, CO

Built 2002 Load: 29.2 t ADT: 62,000

US 24 ML

Fair

Over: FOUNTAIN CREEK

IN COLORADO SPRINGS, El Paso, CO

Built 2020 Load: 29.2 t ADT: 36,000

SH 21B SBND ML

Fair

Over: PINE CREEK

S. BND. POWERS BLVD., El Paso, CO

Built 2014 Load: 29.2 t ADT: 18,500

COUNTY ROAD 9

Fair

Over: FOUR MILE CREEK

5.2 MI N OF HIGH STREET, Fremont, CO

Built 1989 Load: 29.2 t ADT: 308

SH 9 ML

Fair

Over: CURRANT CREEK

3.2 MI NW OF JCT US 50, Fremont, CO

Built 1967 Load: 29.2 t ADT: 2,200

OWL CREEK PASS RD

Fair

Over: EAST FORK CIMARRON RIV.

27 MI S OF MONTROSE, Gunnison, CO

Built 1987 Load: 29.2 t ADT: 45

I 25 ML SBND

Fair

Over: LINDEN AVE

IN TRINIDAD, Las Animas, CO

Built 1968 Load: 29.2 t ADT: 8,000

SH 97 ML

Fair

Over: SAN MIGUEL RIVER

NATURITA, Montrose, CO

Built 1957 Load: 29.2 t ADT: 1,400

US 50 ML WBND

Fair

Over: TIMPAS CREEK

0.8 MI WEST OF SWINK, Otero, CO

Built 1947 Load: 29.2 t ADT: 4,700

SH 96 ML

Fair

Over: KRAMER CREEK

9 Miiles E of Boone, Pueblo, CO

Built 2002 Load: 29.2 t ADT: 1,100

Showing 2,551-2,600 of 8,965 bridges

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.

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.