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

County Road KK.75

Fair

Over: Surveyor Creek

0.25 Mi, N. of Co Rd 40.5, Washington, CO

Built 1989 Load: 42.6 t ADT: 40

US 36 ML

Fair

Over: PECOS STREET

IN WESTMINSTER, Adams, CO

Built 2001 Load: 42.7 t ADT: 129,000

COUNTY ROAD L.7

Fair

Over: EL POSO CREEK

JUST W OF CR 25.5, Costilla, CO

Built 1997 Load: 42.7 t ADT: 78

I 25 ML

Fair

Over: CLYDESDALE LN

9.5 MI N OF CASTLE ROCK, Douglas, CO

Built 1999 Load: 42.7 t ADT: 116,000

E. ILIFF AVE.

Fair

Over: HIGHLINE CANAL

0.45 MI W. OF PARKER ROAD, Arapahoe, CO

Built 1977 Load: 42.8 t ADT: 38,491

Hover Road

Fair

Over: St. Vrain River

100 Ft S of 3rd Avenue, Boulder, CO

Built 1960 Load: 42.8 t ADT: 26,762

C.RD TRINCHERA

Fair

Over: SANGRE DE CRISTO CREEK

2.1 MI E OF FORT GARLAND, Costilla, CO

Built 1989 Load: 42.8 t ADT: 531

TWENTY MILE ROAD

Fair

Over: SULPHUR GULCH

JUST SOUTH OF MAIN STREET, Douglas, CO

Built 2000 Load: 42.8 t ADT: 12,682

Drake Road

Fair

Over: Spring Creek

0.0 Mi E of Hanover Dr, Larimer, CO

Built 1997 Load: 42.8 t ADT: 17,741

COUNTY ROAD 11

Fair

Over: AMITY CANAL

1.0 MI NORTH SH 196, Prowers, CO

Built 1970 Load: 42.8 t ADT: 55

County Road 36

Fair

Over: Platte Valley Canal

0.8 Mi E of Co Rd 29, Weld, CO

Built 1981 Load: 42.8 t ADT: 103

COUNTY ROAD DD

Fair

Over: SAND ARROYO

0.1 MI W OF CR 55, Baca, CO

Built 1997 Load: 42.9 t ADT: 40

US 385 ML

Fair

Over: DRAW

7.2 MI S OF JCT US 40, Cheyenne, CO

Built 1961 Load: 42.9 t ADT: 730

COUNTY ROAD 10

Fair

Over: EASTDALE NO.1 CANAL

2.3 MI S OF CR H, Costilla, CO

Built 2002 Load: 42.9 t ADT: 27

22ND ST RAMP

Fair

Over: COORS FLD LOT/RAILROAD

JUST W OF WAZEE STREET, Denver, CO

Built 1994 Load: 42.9 t ADT: 30,064

I 70 ML WBND

Fair

Over: SWEETWATER CROSS ROAD

DOTSERO INTERCHANGE, Eagle, CO

Built 1980 Load: 42.9 t ADT: 8,500

I 25 ML

Fair

Over: DRAW

10.3 MI NO OF JCT SH 239, Las Animas, CO

Built 1969 Load: 42.9 t ADT: 12,000

POTOMAC ST

Fair

Over: CHERRY CREEK TRIB

AT BRONCOS PKWY, Arapahoe, CO

Built 1986 Load: 43.0 t ADT: 21,329

COUNTY ROAD J

Fair

Over: TRIB. OF MUDDY CREEK

.5 MI SW OF CR 10, Bent, CO

Built 1992 Load: 43.0 t ADT: 10

NWP EB

Fair

Over: BNSF

7.68 MI FROM I-25, Broomfield, CO

Built 2002 Load: 43.0 t ADT: 12,000

NWP WB

Fair

Over: BNSF

7.68 MI FROM I-25, Broomfield, CO

Built 2002 Load: 43.0 t ADT: 12,000

EB MAINSTREET

Fair

Over: CHERRY CREEK

1.0 MI WEST OF HWY 83, Douglas, CO

Built 2000 Load: 43.0 t ADT: 13,212

I 25 ML SBND

Fair

Over: COTTONWOOD CREEK

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

Built 2004 Load: 43.0 t ADT: 62,000

I 25 ML NBND

Fair

Over: LARIMER COUNTY CANAL

5.2 MI N OF JCT SH 14, Larimer, CO

Built 1950 Load: 43.0 t ADT: 14,000

County Road 28

Fair

Over: Louden Ditch

0.5 Mi E of Co Rd 17, Larimer, CO

Built 1977 Load: 43.0 t ADT: 11,797

I 25 ML NBND

Fair

Over: COTTONWOOD CREEK

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

Built 2004 Load: 43.1 t ADT: 62,000

County Road 315

Fair

Over: Mamm Creek

5.2 Mi South of I-70, Garfield, CO

Built 1993 Load: 43.1 t ADT: 181

SH 330 ML

Fair

Over: PLATEAU CREEK

5 MI W OF COLLBRAN, Mesa, CO

Built 1975 Load: 43.1 t ADT: 1,600

IRR# US 491 ML

Fair

Over: MANCOS RIVER

2 MI NORTH OF NEW MEXICO, Montezuma, CO

Built 1959 Load: 43.1 t ADT: 4,000

WILDERNEST ROAD

Fair

Over: BLUE RIVER

.1 MI W OF STATE HWY 9, Summit, CO

Built 1983 Load: 43.1 t ADT: 11,850

County Road 31

Fair

Over: Pierce Lateral Canal

0.1 Mi N of Co Rd 88.75, Weld, CO

Built 1989 Load: 43.1 t ADT: 108

COUNTY ROAD 34.5

Fair

Over: ARKANSAS RIVER

.7 MI S OF CR JJ, Bent, CO

Built 1994 Load: 43.2 t ADT: 173

23RD ST RAMP

Fair

Over: COORS FIELD LOT/RR

JUST W OF WAZEE STREET, Denver, CO

Built 1995 Load: 43.2 t ADT: 23,318

I 25 ML NBND

Fair

Over: PINE CREEK

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

Built 2002 Load: 43.2 t ADT: 58,000

WELCH AVENUE

Fair

Over: BEAR CREEK

S OF HWY 74 IN KITTREDGE, Jefferson, CO

Built 1988 Load: 43.2 t ADT: 537

COUNTY ROAD 19

Fair

Over: ARKANSAS RIVER

.7 MI S OF SH 169, Prowers, CO

Built 2000 Load: 43.2 t ADT: 105

ARAPAHOE ROAD

Fair

Over: PINEY CREEK

AT INT OF S LIVERPOOL ST, Arapahoe, CO

Built 1998 Load: 43.3 t ADT: 25,186

PRICE LANE

Fair

Over: EAGLE RIVER

0.2 W OF PORPHYRY ROAD, Eagle, CO

Built 1982 Load: 43.3 t ADT: 754

CO RD 76

Fair

Over: QUARTZ CREEK

6.7 MI NE OF PARLIN, Gunnison, CO

Built 1998 Load: 43.3 t ADT: 498

US 6 ML

Fair

Over: ADOBE CREEK

2.6 MI SE OF JCT SH340, Mesa, CO

Built 1986 Load: 43.3 t ADT: 12,000

SH 133 ML

Fair

Over: COAL CREEK

AT REDSTONE, Pitkin, CO

Built 1961 Load: 43.3 t ADT: 1,800

COUNTY ROAD 2

Fair

Over: CUNNINGHAM CREEK

4.5 MI NE OF SILVERTON, San Juan, CO

Built 1989 Load: 43.3 t ADT: 997

120TH AVE

Fair

Over: BRANTNER DITCH

2 MI W OF US85, Adams, CO

Built 2005 Load: 43.4 t ADT: 9,217

I 70 ML EBND

Fair

Over: DRAW

11.2 MI E OF RD TO AGATE, Elbert, CO

Built 1958 Load: 43.4 t ADT: 5,500

I 70 ML EBND

Fair

Over: DRAW

3.2 MI E OF RIVERBEND, Elbert, CO

Built 1958 Load: 43.4 t ADT: 5,500

US 36 ML

Fair

Over: DRAW

2.9 MI E OF LINDON, Washington, CO

Built 1938 Load: 43.4 t ADT: 570

ALAMEDA AVE

Fair

Over: COLUMBIA CREEK

0.3 MI W OF BUCKLEY ROAD, Arapahoe, CO

Built 1978 Load: 43.5 t ADT: 21,562

I 70 ML WBND

Fair

Over: DRAW

7 MI W OF JCT DEERTRAIL S, Arapahoe, CO

Built 1964 Load: 43.5 t ADT: 6,000

I 70 ML EBND

Fair

Over: DRAW

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

Built 1964 Load: 43.5 t ADT: 6,000

SH 96 ML

Fair

Over: MEREDITH CANAL

3.5 MI EAST OF ORDWAY, Crowley, CO

Built 1934 Load: 43.5 t ADT: 1,600

Showing 4,801-4,850 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.