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 34 ML

Fair

Over: UPPR PLATTE,BEAVER CANAL

6.1 MI E OF JCT SH 52, Morgan, CO

Built 1940 Load: 22.2 t ADT: 4,300

COUNTY ROAD EE

Fair

Over: ROCKY FORD HIGHLINE CANA

.2 MI E OF CR 14, Otero, CO

Built 1975 Load: 22.2 t ADT: 34

NEALE AVE

Fair

Over: ROARING FORK RIVER

2 BLK E OF HWY 82, Pitkin, CO

Built 1985 Load: 22.2 t ADT: 1,596

COUNTY ROAD 25

Fair

Over: GRANADA CREEK

1 MI N OF CR X, Prowers, CO

Built 1975 Load: 22.2 t ADT: 27

I 70 ML EBND

Fair

Over: BOX ELDER CREEK

1 MI E OF WATKINS INTERCH, Adams, CO

Built 1960 Load: 22.3 t ADT: 13,000

AIRPORT BLVD

Fair

Over: EAST TOLLGATE CREEK

0.3 MI N OF ALAMEDA AVE, Arapahoe, CO

Built 1981 Load: 22.3 t ADT: 32,839

I 70 DEERTRAIL SPU

Fair

Over: DRAW

IN DEERTRAIL, Arapahoe, CO

Built 1965 Load: 22.3 t ADT: 940

QUITMAN ST

Fair

Over: WEIR GULCH

NORTH OF 1ST AVENUE, Denver, CO

Built 1976 Load: 22.3 t ADT: 298

COUNTY ROAD 67

Fair

Over: SOUTH PLATTE RIVER

.1 MI N OF DECKERS, Jefferson, CO

Built 1988 Load: 22.3 t ADT: 849

US 6 ML

Fair

Over: PAWNEE CANAL

18.2 MI NO OF JCT I-76, Logan, CO

Built 1966 Load: 22.3 t ADT: 1,000

JIG ROAD

Fair

Over: COAL CREEK

7.3 MI NW OF MONTROSE, Montrose, CO

Built 1982 Load: 22.3 t ADT: 87

SH 82 ML

Fair

Over: CO RD, CASTLE CREEK

ASPEN, Pitkin, CO

Built 1961 Load: 22.3 t ADT: 25,000

MARILYN PLACE

Fair

Over: BESSEMER DITCH

CORNER OF MARILYN/ ADAMS, Pueblo, CO

Built 1939 Load: 22.3 t ADT: 679

County Road 56

Fair

Over: Elkhead Creek

2.5 M E of Moffat Co Line, Routt, CO

Built 1950 Load: 22.3 t ADT: 21

160TH AVENUE

Fair

Over: LOST CREEK

0.3 MI E OF CONVERSE ROAD, Adams, CO

Built 1983 Load: 22.4 t ADT: 69

160TH AVENUE

Fair

Over: COMANCHE CREEK

1.3 MI E OF HEADLIGHT RD, Adams, CO

Built 1955 Load: 22.4 t ADT: 42

SH 7 ML

Fair

Over: BEAR CANYON CREEK

JCT 157 & ARAPAHOE, Boulder, CO

Built 1985 Load: 22.4 t ADT: 29,000

COUNTY ROAD O.90

Fair

Over: NORTH FORK GUNNISON RVR

W ENTRANCE TO PAONIA, Delta, CO

Built 1984 Load: 22.4 t ADT: 4,267

SPRING CREEK ROAD

Fair

Over: SPRING CREEK

12.5 MI. N.E. ALMONT, CO., Gunnison, CO

Built 1965 Load: 22.4 t ADT: 146

SH 149 ML

Fair

Over: CEBOLLA CREEK

17.1 MI S. OF SH 50, Gunnison, CO

Built 1958 Load: 22.4 t ADT: 560

I 70 ML WBND

Fair

Over: RR, SALT CREEK

0.3 MI. W. JCT. SH 6 MACK, Mesa, CO

Built 1971 Load: 22.4 t ADT: 4,200

County Road 104

Fair

Over: Little Red Wash

6.4 Mi West of US Hwy 40, Moffat, CO

Built 1948 Load: 22.4 t

County Road 22

Fair

Over: Dove Creek Canal Reach 1

Yellow Jacket, Colorado, Montezuma, CO

Built 1985 Load: 22.4 t ADT: 20

County Road 20

Fair

Over: Dove Creek Canal Reach 1

Yellow Jacket, Colorado, Montezuma, CO

Built 1985 Load: 22.4 t ADT: 30

County Road 5

Fair

Over: Highline Canal

0.6 Mi. No. of Co. Rd. 26, Sedgwick, CO

Built 1986 Load: 22.4 t ADT: 16

County Road 8

Fair

Over: Fulton Ditch

0.1 Mi E of Co Rd 29, Weld, CO

Built 1992 Load: 22.4 t ADT: 943

County Road 43

Fair

Over: Latham Ditch

100 Ft N of Co Rd 54, Weld, CO

Built 1995 Load: 22.4 t ADT: 20

144TH AVENUE

Fair

Over: FULTON LATERAL

JUST E OF POTOMAC, Adams, CO

Built 1998 Load: 22.5 t ADT: 2,597

BUFFALO ST

Fair

Over: LITTLES CREEK

AT WEST STERNE PKWY, Arapahoe, CO

Built 2000 Load: 22.5 t ADT: 1,819

23RD AVENUE

Fair

Over: CLEAR CREEK

JUST N OF COLORADO BLVD, Clear Creek, CO

Built 1989 Load: 22.5 t ADT: 566

80TH AVENUE

Fair

Over: CROKE CANAL

.28 MI E OF KIPLING ST, Jefferson, CO

Built 1930 Load: 22.5 t ADT: 16,690

US 24 ML

Fair

Over: SAND CREEK

2 MI W OF SEIBERT, Kit Carson, CO

Built 1933 Load: 22.5 t ADT: 21

US 287 ML

Fair

Over: LARAMIE POUDRE CANAL

0.1 MI N OF JCT SH 14, Larimer, CO

Built 1965 Load: 22.5 t ADT: 6,500

US 6 ML

Fair

Over: SOUTH PLATTE RIVER

12.7 MI SW OF STERLING, Logan, CO

Built 1966 Load: 22.5 t ADT: 1,000

COUNTY ROAD 23

Fair

Over: GRAND VALLEY CANAL

.9 MI N OF RD I, Mesa, CO

Built 1955 Load: 22.5 t ADT: 1,950

County Road 18S

Fair

Over: Fortification Creek

0.11 Mi East of St Hwy 13, Moffat, CO

Built 1987 Load: 22.5 t ADT: 303

COUNTY ROAD 6W

Fair

Over: FARMERS UNION CANAL

.4 MI N OF CR 6N, Rio Grande, CO

Built 1940 Load: 22.5 t ADT: 60

County Road 1813

Fair

Over: Blue River

26 mi NW of Silverthorne, Summit, CO

Built 1938 Load: 22.5 t ADT: 10

HAMILTON CREEK RD

Fair

Over: BLUE RIVER

.4 MILE EAST OF HIGHWAY 9, Summit, CO

Built 1980 Load: 22.5 t ADT: 483

Folsom Street

Fair

Over: Goose Creek

300 Ft. So. of Valmont, Boulder, CO

Built 1970 Load: 22.6 t ADT: 10,980

US 287 ML

Fair

Over: LEFT HAND CREEK

IN LONGMONT, Boulder, CO

Built 1948 Load: 22.6 t ADT: 24,000

COUNTY ROAD 1800

Fair

Over: SURFACE CREEK

.2 MI E OF 2375 RD, Delta, CO

Built 1985 Load: 22.6 t ADT: 368

CHIPITA PARK RD

Fair

Over: FOUNTAIN CREEK

N FOUNTAIN/CHIPITA PARK, El Paso, CO

Built 1976 Load: 22.6 t ADT: 1,350

I 70 ML WBND

Fair

Over: COUNTY ROAD 178

3.6 MI W OF JCT AGATE SPU, Elbert, CO

Built 1966 Load: 22.6 t ADT: 5,500

COUNTY ROAD 30

Fair

Over: BRANCH OF LANDSMAN CREEK

0.4 MILES NORTH OF ROAD G, Kit Carson, CO

Built 1959 Load: 22.6 t ADT: 318

COUNTY ROAD N.3

Fair

Over: BIG SALT WASH

.3 MI N OF RD N, Mesa, CO

Built 1986 Load: 22.6 t ADT: 147

County Road F

Fair

Over: Buck Creek

0.2 Mi E of Co Rd 31, Morgan, CO

Built 1989 Load: 22.6 t ADT: 43

I 270 EBND ML

Fair

Over: WASHINGTON STREET

JUST EAST OF I-25 ramp; U, Adams, CO

Built 2003 Load: 22.7 t ADT: 37,500

COUNTY ROAD 42

Fair

Over: W BIJOU CREEK

3.2 MI EAST OF CR 157, Arapahoe, CO

Built 1964 Load: 22.7 t ADT: 96

I 70 SERVICE RD

Fair

Over: MIDDLE BIJOU CREEK SR

7.3 MI E OF JCT 36, BYERS, Arapahoe, CO

Built 1966 Load: 22.7 t ADT: 12,000

Showing 1,651-1,700 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.