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

I 76 ML

Fair

Over: WASHINGTON STREET

0.3 MI E OF I 25, Adams, CO

Built 1990 Load: 33.3 t ADT: 74,000

RAMP TO I76 ML EB

Fair

Over: YORK ST. R

NE OF JCT I25, Adams, CO

Built 2003 Load: 33.3 t ADT: 42,000

SH177ML-UNIVERSITY

Fair

Over: HIGHLINE CANAL

GRNWD VILLAGE @ FIRE STAT, Arapahoe, CO

Built 1965 Load: 33.3 t ADT: 29,000

US 50 ML

Fair

Over: DRAW

1.2 MI EAST OF JCT SH 196, Bent, CO

Built 1936 Load: 33.3 t ADT: 2,200

CALHAN HIGHWAY

Fair

Over: BIG SANDY CREEK TRIB.

4.1 MI N OF CALHAN, El Paso, CO

Built 1965 Load: 33.3 t ADT: 2,879

SH 69 ML

Fair

Over: MAITLAND ARROYO

3 MI NW OF JCT I 25, Huerfano, CO

Built 1940 Load: 33.3 t ADT: 890

SH 96 ML

Fair

Over: DRAW

9.1 MI E OF HASWELL, Kiowa, CO

Built 1989 Load: 33.3 t ADT: 480

IRR# COUNTY RD 105

Fair

Over: CHERRY CREEK

7 MI S OF SH 160, La Plata, CO

Built 1985 Load: 33.3 t ADT: 42

SANBORN PARK RD

Fair

Over: HORSEFLY CREEK

20.0 MI E OF REDVALE, Montrose, CO

Built 1961 Load: 33.3 t ADT: 86

County Road 64

Fair

Over: Willow Creek

2.0 Mi NW of Co Rd 129, Routt, CO

Built 1950 Load: 33.3 t ADT: 487

US 160 ML

Fair

Over: SAN JUAN RIVER

IN PAGOSA SPRINGS, Archuleta, CO

Built 1962 Load: 33.4 t ADT: 8,800

SH 119 ML NB

Fair

Over: BEASLEY DITCH

@ 55TH ST NE OF BOULDER, Boulder, CO

Built 1958 Load: 33.4 t ADT: 22,000

COUNTY ROAD 109

Fair

Over: SOUTH ARKANSAS RIVER

1.3 MI SW OF SALIDA, Chaffee, CO

Built 1985 Load: 33.4 t ADT: 50

PEBBLE WAY

Fair

Over: DRY CREEK

0.5 MI N ROCKRIMMON, El Paso, CO

Built 1987 Load: 33.4 t ADT: 484

I 25 ML NBND

Fair

Over: BEAR CREEK

0.5 MI N OF JCT BUS RT, Huerfano, CO

Built 1963 Load: 33.4 t ADT: 5,000

I 70 VONA SPUR

Fair

Over: SPRING CREEK

18.7 MI. E. OF FLAGLER, Kit Carson, CO

Built 1966 Load: 33.4 t ADT: 190

S. Shields St

Fair

Over: Larimer Co Canal No 2

0.2 Mi N of Drake St, Larimer, CO

Built 2013 Load: 33.4 t ADT: 26,815

County Road 56

Fair

Over: Larimer County Canal

0.3 Mi E of Co Rd 11, Larimer, CO

Built 1999 Load: 33.4 t ADT: 112

County Road 30

Fair

Over: Pioneer Drainage Ditch

50 Ft W of Co Rd 39, Logan, CO

Built 1996 Load: 33.4 t ADT: 1,807

US 138 ML

Fair

Over: DRAW

West edge of Ovid, Sedgwick, CO

Built 1930 Load: 33.4 t ADT: 720

COUNTY ROAD 20

Fair

Over: HORSE CREEK

1.6 MI N OF CR PP, Baca, CO

Built 1940 Load: 33.5 t ADT: 4

SH 157 ML

Fair

Over: SKUNK CREEK

IN BOULDER, Boulder, CO

Built 1978 Load: 33.5 t ADT: 43,000

15TH ST

Fair

Over: SOUTH PLATTE RIVER

E OF PLATTE DRIVE, Denver, CO

Built 1975 Load: 33.5 t ADT: 11,374

I 70 ML WBND

Fair

Over: GAME UNDERPASS

1.8 W OF EAGLE SPUR, Eagle, CO

Built 1977 Load: 33.5 t ADT: 11,000

I 70 ML WBND

Fair

Over: LANDSMAN CREEK

9.3 MI. W. OF JCT US 385, Kit Carson, CO

Built 1966 Load: 33.5 t ADT: 4,600

I 70 ML EBND

Fair

Over: LANDSMAN CREEK

8.2 MI. E. OF JCT. SH. 57, Kit Carson, CO

Built 1966 Load: 33.5 t ADT: 4,600

Fall River Lane

Fair

Over: Fall River

250 Ft S of W Elkhorn, Larimer, CO

Built 1983 Load: 33.5 t ADT: 202

COUNTY ROAD 23.7

Fair

Over: NORTH RUSH CREEK

0.4 MILE SOUTH OF ROAD 2L, Lincoln, CO

Built 1992 Load: 33.5 t ADT: 31

I 70 ML EBND

Fair

Over: COLORADO RIVER

1.5 MI E OF JCT SH 65, Mesa, CO

Built 1985 Load: 33.5 t ADT: 8,500

US 50 ML

Fair

Over: ANDERSON ARROYO

IN LA JUNTA, Otero, CO

Built 1961 Load: 33.5 t ADT: 12,000

County Road 4

Fair

Over: Denver Hudson Canal

0.3 Mi E of Co Rd 41, Weld, CO

Built 2003 Load: 33.5 t ADT: 1,483

County Road 70

Fair

Over: Willow Creek

0.5 Mi E of Co Rd 49, Weld, CO

Built 1960 Load: 33.5 t ADT: 26

IRR# US 84 ML

Fair

Over: RIO BLANCO

18 MI NW OF NEW MEXICO S., Archuleta, CO

Built 1962 Load: 33.6 t ADT: 1,300

COUNTY ROAD GG

Fair

Over: CADDOA CREEK

.2 MI E OF CR 26, Bent, CO

Built 1988 Load: 33.6 t ADT: 65

County Road 80

Fair

Over: North St. Vrain Creek

0.8 Mi W of US Hwy 36, Boulder, CO

Built 1988 Load: 33.6 t ADT: 199

NFSR 292.A

Fair

Over: CHALK CREEK

.2 MI NW OF CR 162, Chaffee, CO

Built 1989 Load: 33.6 t ADT: 31

8TH AVENUE

Fair

Over: CHERRY CREEK

8TH AVE AT SPEER, Denver, CO

Built 1989 Load: 33.6 t ADT: 18,785

I 70 ML EBND

Fair

Over: COUNTY ROAD

W. END of EDWARDS, Eagle, CO

Built 1970 Load: 33.6 t ADT: 13,000

PARADE LOOP DRIVE

Fair

Over: DEADMANS CREEK

100' S. OF N. GATE BLVD., El Paso, CO

Built 1958 Load: 33.6 t ADT: 4,015

VIRGIL WAY

Fair

Over: RALSTON CREEK

0.5 MI N OF 64TH AVENUE, Jefferson, CO

Built 2004 Load: 33.6 t ADT: 1,069

I 76 ML

Fair

Over: ARVADA CHANNEL

IN WHEAT RIDGE, Jefferson, CO

Built 1982 Load: 33.6 t ADT: 76,000

COUNTY ROAD 2G

Fair

Over: BIG SANDY CREEK

0.2 MI WEST OF ROAD 43, Lincoln, CO

Built 1997 Load: 33.6 t ADT: 46

COUNTY ROAD 43

Fair

Over: BIG SANDY CREEK

1 MILE SOUTH OF ROAD 2G, Lincoln, CO

Built 1996 Load: 33.6 t ADT: 46

I 70 ML WBND

Fair

Over: COLORADO RIVER OVFLW

9.2 Miles W Mesa Garfield, Mesa, CO

Built 1982 Load: 33.6 t ADT: 8,500

I 70 FRONTAGE RD

Fair

Over: GRAND VALLEY CANAL SR

2.2 MI W / HORIZON DRIVE, Mesa, CO

Built 1965 Load: 33.6 t ADT: 863

SH 71 ML

Fair

Over: HIGHLINE CANAL

2.3 MI S OF ROCKY FORD, Otero, CO

Built 1941 Load: 33.6 t ADT: 460

SH 59 ML

Fair

Over: FRENCHMAN CREEK

0.8 mi S of Haxtun, Phillips, CO

Built 1959 Load: 33.6 t ADT: 450

US 50 ML

Fair

Over: AMITY CANAL

5.6 MI W of Lamar, Prowers, CO

Built 1982 Load: 33.6 t ADT: 7,800

COUNTY ROAD TT

Fair

Over: FT. LYON CANAL

.2 MI W OF CR 10.5, Prowers, CO

Built 1950 Load: 33.6 t ADT: 26

SH 257 ML

Fair

Over: BIG THOMPSON RIVER

0.8 MI NO OF JCT SH 60, Weld, CO

Built 1961 Load: 33.6 t ADT: 8,500

Showing 3,851-3,900 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.