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 EBND

Unknown

Over: COUNTY ROAD 49

2.8 MI NE OF JCT SH 52, Weld, CO

Built 2000 ADT: 1,000

I 76 ML WBND

Unknown

Over: COUNTY ROAD 49

4.5 MI W of Keenesburg, Weld, CO

Built 2000

COUNTY ROAD 73

Unknown

Over: I 76 ML

16.4 MI NE OF JCT SH 52, Weld, CO

Built 1959 ADT: 14,000

NFSR 104.D

Fair

Over: HOMESTAKE TUNNEL OUTLET

MAY QUEEN CG, Lake, CO

Built 1984 ADT: 41

County Road 31

Fair

Over: Beavr Crk, LPB Canal

0.4 Mi North of US Hwy 6, Morgan, CO

Built 1950 Load: 1.9 t ADT: 37

PARKING LOT ACCESS

Fair

Over: FOUNTAIN CREEK

JUST N OF MANITOU STREET, El Paso, CO

Built 1932 Load: 2.7 t ADT: 149

COUNTY ROAD M

Fair

Over: HORSE CREEK

0.2 MI EAST OF SH 71, Lincoln, CO

Built 1965 Load: 3.5 t ADT: 37

County Road 37

Fair

Over: N Fork Frenchman Creek

0.1 Mi. No. of US Hwy 6, Phillips, CO

Built 1967 Load: 3.5 t ADT: 48

County Road 3

Fair

Over: Tributary to Vega Creek

0.5 M. E. of St. Hwy. 71, Washington, CO

Built 1966 Load: 4.4 t ADT: 6

COUNTY ROAD 43

Fair

Over: ARIKAREE RIVER

1.0 MILE SOUTH OF ROAD 3X, Lincoln, CO

Built 1979 Load: 4.7 t ADT: 63

NAVAJO ROAD

Fair

Over: PIEDRA RIVER

0.3 MILES W OF SH 151, Archuleta, CO

Built 1913 Load: 4.8 t ADT: 927

COUNTY RD 37.7

Fair

Over: JAROSA CREEK

0.2 MI S OF CR 42, Las Animas, CO

Built 1985 Load: 5.4 t ADT: 32

COUNTY ROAD 47

Fair

Over: ARKANSAS RIVER

.2 MI NW OF US 50, Fremont, CO

Built 1930 Load: 6.1 t ADT: 132

County Road 26A

Fair

Over: Imogene Creek

2.1 Miles from CR26, Ouray, CO

Built 2010 Load: 6.2 t ADT: 9

COUNTY ROAD 20R

Fair

Over: DOLORES RIVER

14.1 MI NW OF SH 141, San Miguel, CO

Built 1960 Load: 6.2 t ADT: 2

COUNTY ROAD 29

Fair

Over: N. FK. SMOKY HILL RIVER

0.5 MILES SOUTH OF ROAD C, Kit Carson, CO

Built 1930 Load: 6.4 t ADT: 7

COUNTY RD 6.8

Fair

Over: UNNAMED NATURAL DRAINAGE

.3 MI W OF CR 121.9, Las Animas, CO

Built 1940 Load: 6.4 t ADT: 44

COUNTY RD 3A.7

Fair

Over: BIG SANDY CREEK TRIB

JUST EAST OF ROAD 34, Lincoln, CO

Built 1960 Load: 6.4 t ADT: 19

County Road 18

Fair

Over: Sand Creek

0.3 Mi E of Co Rd S, Washington, CO

Built 1978 Load: 6.4 t ADT: 25

PARK AVENUE

Fair

Over: BEAR CREEK

AT INTER. WITH SH 8, Jefferson, CO

Built 1926 Load: 6.5 t ADT: 220

Co Rd 54A

Fair

Over: Middle Boulder Creek

Castle Rock Pull Off, Boulder, CO

Built 1917 Load: 6.6 t ADT: 66

COMMERCE ROAD

Fair

Over: BIG SANDY CREEK

.5 MI NW OF BLASINGAME RD, El Paso, CO

Built 1935 Load: 6.7 t ADT: 100

County Road Y

Fair

Over: N. Fork Arikaree River

0.6 Mi. N. of Co. Rd. 0, Washington, CO

Built 1967 Load: 6.8 t ADT: 3

SUMMER HOME ROAD

Fair

Over: CEMENT CREEK

25 MI. N. GUNNISON, CO., Gunnison, CO

Built 1949 Load: 7.1 t ADT: 28

GRANDVIEW AVE.

Fair

Over: FOUR MILE CREEK

JUST E OF STEINMEIER AVE, Fremont, CO

Built 1940 Load: 7.3 t ADT: 1,541

GUBBINS-JOHNSON AC

Fair

Over: BAKER CREEK

0.6 MILES WEST OF U.S. RO, Grand, CO

Built 1983 Load: 7.3 t ADT: 50

County Road M

Fair

Over: Vega Creek

2.20 Mi South of US 36, Washington, CO

Built 1967 Load: 7.3 t ADT: 21

REST AREA ACCESS

Fair

Over: SHOSHONE INTAKE AR

HANGING LAKE REST STOP, Garfield, CO

Built 1937 Load: 7.6 t ADT: 353

COUNTY RD 42.0

Fair

Over: APISHAPA RIVER

0.2 MI S OF CR 43.7, Las Animas, CO

Built 1930 Load: 7.7 t ADT: 54

BOULDER CREEK PATH

Fair

Over: BOULDER CREEK

4Mi Canyon Path at SH119, Boulder, CO

Built 2020 Load: 8.0 t ADT: 11

COUNTY RD 71.1

Fair

Over: POWELL ARROYO CREEK

0.2 MI N OF KENTUCKY AVE, Las Animas, CO

Built 1935 Load: 8.0 t ADT: 109

NFSR 344

Fair

Over: SOUTH COTTONWOOD CREEK

8.9 MI SW OF BUENA VISTA, Chaffee, CO

Built 1954 Load: 8.1 t ADT: 160

SLATE CREEK RD

Fair

Over: BLUE RIVER

0.4 MI WEST OF HIGHWAY 9, Summit, CO

Built 1923 Load: 8.1 t ADT: 13

SH 157 ML

Fair

Over: PEARL STREET

2.9 MI N OF US 36, Boulder, CO

Built 1985 Load: 8.2 t ADT: 43,000

HIGHWAY 110

Fair

Over: SPRING CREEK

1.9 MI E OF ELLICOTT HWY, El Paso, CO

Built 1935 Load: 8.2 t ADT: 90

County Road 104

Fair

Over: Miller Creek

2.8 Mi East of US Hwy 40, Moffat, CO

Built 1930 Load: 8.2 t ADT: 18

County Road 21

Fair

Over: Little Thompson River

0.7 Mi N of S County Line, Larimer, CO

Built 1970 Load: 8.3 t ADT: 1,985

COUNTY ROAD 6400

Fair

Over: HAPPY CANYON CREEK

2 MI OF US 550, Montrose, CO

Built 1971 Load: 8.3 t ADT: 260

County Road DD

Fair

Over: Trib. of Surveyor Creek

.70 Mi North of CR 41, Washington, CO

Built 2008 Load: 8.3 t ADT: 96

IRR# COUNTY RD 334

Fair

Over: ALLISON DITCH

.5 MI E OF CR 523, La Plata, CO

Built 1940 Load: 8.7 t ADT: 138

COUNTY ROAD MM

Fair

Over: WILEY DRAINAGE

0.3 MI W OF CR 3, Prowers, CO

Built 1960 Load: 8.7 t ADT: 314

CLARKSON ST

Fair

Over: HIGHLINE CANAL

.1 MILE N OF PANAMA DRIVE, Arapahoe, CO

Built 1950 Load: 8.8 t ADT: 2,529

COUNTY ROAD 9

Fair

Over: WILD HORSE CREEK

2.0 MI N OF CR V, Cheyenne, CO

Built 1966 Load: 9.0 t ADT: 15

COUNTY ROAD 19

Fair

Over: WOLF CREEK

2 MI N OF CR W, Prowers, CO

Built 1960 Load: 9.0 t ADT: 30

HUSTED ROAD

Fair

Over: NON-POTABLE RESERVOIR #1

100' N. OF NON-POTABLE RE, El Paso, CO

Built 2004 Load: 9.1 t ADT: 15

County Road 51

Fair

Over: New Cache La Poudre Cana

0.4 Mi N of St Hwy 392, Weld, CO

Built 1982 Load: 9.2 t ADT: 360

COUNTY ROAD 11

Fair

Over: FT. LYON CANAL

2 MI N OF SH 50, Bent, CO

Built 1940 Load: 9.3 t ADT: 92

COUNTY ROAD E

Fair

Over: SMITH CANYON

.5 MI SW OF SH 109, Otero, CO

Built 1966 Load: 9.3 t ADT: 83

US 50 ML EBND

Fair

Over: TIMPAS CREEK

.8 MI W. OF SWINK, Otero, CO

Built 1958 Load: 9.5 t ADT: 4,700

County Road 343

Fair

Over: West Divide Creek

500Ft West of Co Road 311, Garfield, CO

Built 1945 Load: 9.6 t ADT: 27

Showing 851-900 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.