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%.

Condition Distribution

Colorado35.3%59.9%GoodFairPoor
Bridge inventory deck-condition mix - Colorado (FHWA NBI)

Counties (64)

Adams 535 Alamosa 16 Arapahoe 391 Archuleta 44 Baca 106 Bent 68 Boulder 311 Broomfield 66 Chaffee 84 Cheyenne 61 Clear Creek 77 Conejos 62 Costilla 39 Crowley 28 Custer 20 Delta 64 Denver 458 Dolores 28 Douglas 263 Eagle 174 El Paso 686 Elbert 85 Fremont 137 Garfield 167 Gilpin 19 Grand 88 Gunnison 100 Hinsdale 31 Huerfano 94 Jackson 47 Jefferson 464 Kiowa 31 Kit Carson 130 La Plata 102 Lake 17 Larimer 559 Las Animas 207 Lincoln 129 Logan 182 Mesa 319 Mineral 26 Moffat 80 Montezuma 61 Montrose 118 Morgan 192 Otero 195 Ouray 39 Park 55 Phillips 27 Pitkin 62 Prowers 137 Pueblo 264 Rio Blanco 54 Rio Grande 71 Routt 96 Saguache 41 San Juan 13 San Miguel 59 Sedgwick 64 Summit 57 Teller 27 Washington 75 Weld 614 Yuma 49

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.

County Road 59

Poor

Over: N. Sterling Outlet Canal

0.3 Mi N of Co Rd 58, Logan, CO

Built 1940 Load: 1.4 t ADT: 6

COTTONWOOD ST

Poor

Over: NORTH CRESTONE CREEK

IN TOWN OF CRESTONE, Saguache, CO

Built 1991 Load: 2.3 t ADT: 65

CO Rd 32

Poor

Over: Feeder Ditch

0.28 MI E of Co Rd 75, Las Animas, CO

Built 1970 Load: 2.7 t ADT: 7

POTOMAC STREET

Poor

Over: OBRIAN CANAL

0.2 MILE NORTH OF SH 2, Adams, CO

Built 1940 Load: 3.8 t ADT: 190

88TH AVENUE

Poor

Over: KIOWA CREEK

0.1 MI E OF WOLF CREEK RD, Adams, CO

Built 1950 Load: 4.5 t ADT: 532

IRR# CO RD 500

Poor

Over: CAT CREEK

NEAR CAMADO, Archuleta, CO

Built 1927 Load: 4.7 t ADT: 36

All Bridges in Colorado

COUNTY ROAD 19

Poor

Over: GRANADA CREEK

4 MI N OF CR N, Prowers, CO

Built 1930 Load: 29.2 t ADT: 29

CR J25 (Fairview)

Poor

Over: TONGUE CREEK

.3 MI W OF SH 65, Delta, CO

Built 1984 Load: 29.4 t ADT: 267

COUNTY ROAD 6

Poor

Over: AMITY CANAL

.6 MI N OF US 50, Prowers, CO

Built 1988 Load: 29.4 t ADT: 245

I 70 ML WBND

Poor

Over: COUNTY ROAD 197

7.4 MI W OF DEERTRAIL SPU, Arapahoe, CO

Built 1964 Load: 29.5 t ADT: 6,000

FDR 360

Poor

Over: SOUTH FORK

1.2 MI SW OF SOUTH FORK, Rio Grande, CO

Built 1976 Load: 29.5 t ADT: 738

US 85 ML SBND

Poor

Over: SOUTH PLATTE RIVER

S. EDGE OF EVANS, Weld, CO

Built 1955 Load: 29.5 t ADT: 12,500

I 70 ML EBND

Poor

Over: COUNTY ROAD 197

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

Built 1964 Load: 29.6 t ADT: 6,000

CIRCLE DR WB

Poor

Over: FOUNTAIN CREEK

0.5 MI E OF I-25, El Paso, CO

Built 1963 Load: 29.6 t ADT: 16,248

COUNTY ROAD 38

Poor

Over: MIDDLE BIJOU CREEK

2.7 MI W OF US 40, Arapahoe, CO

Built 1987 Load: 29.7 t ADT: 146

COUNTY ROAD 67

Poor

Over: SOUTH PLATTE RIVER

5 MI NORTH OF DECKERS, Jefferson, CO

Built 1990 Load: 29.8 t ADT: 725

SH 88 ML

Poor

Over: BEAR CREEK

0.1 MI S of JCT US285, Arapahoe, CO

Built 1966 Load: 30.0 t ADT: 21,000

3rd Ave WB

Poor

Over: GW RR

.15 Mi W of Jct 119, Boulder, CO

Built 1974 Load: 30.0 t ADT: 9,116

US 6 ML

Poor

Over: COLORADO RIVER

IN PALISADE, Mesa, CO

Built 1949 Load: 30.0 t ADT: 2,900

SH 52 ML

Poor

Over: DENVER HUDSON CANAL

3.5 MI E OF JCT I-76, Weld, CO

Built 1952 Load: 30.0 t ADT: 2,900

I 270 ML WBND

Poor

Over: SERVICE RD, BNSF RR

IN COMMERCE CITY, Adams, CO

Built 1970 Load: 30.1 t ADT: 48,500

I 76 ML EBND

Poor

Over: TWENTY TWO SLOUGH

14 MI S.W. OF STERLING EX, Logan, CO

Built 1964 Load: 30.2 t ADT: 5,500

County Road 60.5

Poor

Over: Lone Tree Creek

4.7 MI E OF JCT US 85 BYP, Weld, CO

Built 1967 Load: 30.6 t ADT: 749

US 36 ML

Poor

Over: EAST BIJOU CREEK

7.1 MI E OF BYERS, Arapahoe, CO

Built 1966 Load: 30.8 t ADT: 1,100

US 40 ML

Poor

Over: EAST BIJOU CREEK

2.7 MI NW OF DEER TRAIL, Arapahoe, CO

Built 1966 Load: 30.8 t ADT: 330

I 70 ML WBND

Poor

Over: CORRAL CREEK

4 MI W OF JCT SH 91, Summit, CO

Built 1979 Load: 30.9 t ADT: 10,000

I 70 SERVICE RD

Poor

Over: RATTLESNAKE CREEK SR

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

Built 1931 Load: 31.0 t ADT: 303

Wapiti Street

Poor

Over: Fraser River

North of Safeway, Grand, CO

Built 1996 Load: 31.5 t ADT: 640

COUNTY ROAD B

Poor

Over: DRY CREEK

.7MI W OF ASH MESA ROAD, Delta, CO

Built 1986 Load: 31.8 t ADT: 11

County Road 24

Poor

Over: Lower Platte Beaver Cnl

0.4 Mi N of Co Rd T, Morgan, CO

Built 1965 Load: 32.1 t ADT: 1,108

US 36 ML

Poor

Over: VEGA CREEK

4.8 MI E OF JCT SH 71, Washington, CO

Built 1938 Load: 32.1 t ADT: 700

County Road 52

Poor

Over: N. Sterling Outlet Canal

0.4 Mi E of Co Rd 45, Logan, CO

Built 1985 Load: 32.3 t ADT: 7

Lincoln Avenue

Poor

Over: Dry Creek

0.1 Mi E of Industrial Dr, Larimer, CO

Built 1948 Load: 32.4 t ADT: 6,817

HENDERSON ROAD

Poor

Over: SOUTH PLATTE RIVER

0.2 M W OF BRIGHTON BLVD, Adams, CO

Built 1970 Load: 32.7 t ADT: 9,367

SH6 DITCH RIDER RD

Poor

Over: BURLINGTON CANAL SR

0.7 MI N OF JCT SH 224, Adams, CO

Built 1948 Load: 32.7 t ADT: 19,000

120TH AVENUE

Poor

Over: FARMERS HIGHLINE CNL

0.36 MI E OF I-25, Adams, CO

Built 1975 Load: 32.7 t ADT: 43,499

COUNTY ROAD DD

Poor

Over: DRY CREEK

1.1 MI E OF CR 39.4, Baca, CO

Built 1934 Load: 32.7 t ADT: 35

SH 116 ML

Poor

Over: BEATY CREEK

1.5 MI W OF KANSAS, Baca, CO

Built 1938 Load: 32.7 t ADT: 110

SH 116 ML

Poor

Over: BUFFALO CREEK

9.5 MILES W. OF KANSAS, Baca, CO

Built 1938 Load: 32.7 t ADT: 80

US 160 ML

Poor

Over: DRAW

9.8 MILES E. OF PRITCHET, Baca, CO

Built 1939 Load: 32.7 t ADT: 420

South Bowen Street

Poor

Over: Left Hand Creek

At Missouri Ave, Boulder, CO

Built 1965 Load: 32.7 t ADT: 1,835

Rock Creek Pkwy

Poor

Over: Community Ditch

300 Ft East of McCaslin, Boulder, CO

Built 2000 Load: 32.7 t ADT: 7,760

COSTILLA STREET

Poor

Over: SHOOKS RUN

0.2 MI E OF WAHSATCH AVE., El Paso, CO

Built 1930 Load: 32.7 t ADT: 4,652

SAINT VRAIN ST

Poor

Over: SHOOKS RUN

0.1 MI E OF WAHSATCH, El Paso, CO

Built 1970 Load: 32.7 t ADT: 83

CACHE LA POUDRE ST

Poor

Over: SHOOKS RUN

300 FT E OF EL PASO ST, El Paso, CO

Built 1915 Load: 32.7 t ADT: 4,940

US 24 SERVICE RD

Poor

Over: FOUNTAIN CREEK SR

1.7 MI SE OF PIKES PEAK-T, El Paso, CO

Built 1965 Load: 32.7 t ADT: 23,000

WARD ROAD

Poor

Over: RALSTON CREEK

JUST NORTH OF 70TH AVE, Jefferson, CO

Built 1969 Load: 32.7 t ADT: 15,435

SH 391 ML

Poor

Over: CLEAR CREEK

KIPLING 0.65 MI S OF I70, Jefferson, CO

Built 1969 Load: 32.7 t ADT: 37,000

East Vine Drive

Poor

Over: Lake Canal

0.5 Mi W of Timberline Rd, Larimer, CO

Built 1950 Load: 32.7 t ADT: 6,025

Monroe Avenue

Poor

Over: Greeley Loveland Canal

150 Ft N of First Street, Larimer, CO

Built 1922 Load: 32.7 t ADT: 473

COUNTY RD 36.0

Poor

Over: DURAN ARROYO

BETWEEN SH 350/CR85, Las Animas, CO

Built 1950 Load: 32.7 t ADT: 56

SH 12 ML

Poor

Over: DRAW

2.5 MI E OF WESTON, Las Animas, CO

Built 1936 Load: 32.7 t ADT: 520

COUNTY RD 44.6

Poor

Over: SCHOOL HOUSE GULCH

2.5 MI SE OF BOYERO, Lincoln, CO

Built 1935 Load: 32.7 t ADT: 14

County Road 56.3

Poor

Over: Harmony No2 Return Canal

0.4 Mi W of Co Rd 77, Logan, CO

Built 1930 Load: 32.7 t

I.9 ROAD

Poor

Over: Local Drainage

.6 Mi NW of CAMEO, Mesa, CO

Built 1901 Load: 32.7 t ADT: 309

County Road R

Poor

Over: N. Fork Arikaree River

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

Built 1995 Load: 32.7 t ADT: 10

Showing 8,851-8,900 of 8,965 bridges

Related

All states → | National rankings → | Understanding conditions → | Retired SD term explained →
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.

Understanding Bridge Conditions

How FHWA rates bridge condition on a 0-9 scale.

Check Your Daily Bridges

How to look up bridge condition data for bridges on your route.

Read our methodology — how this data is sourced, computed, and verified.

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.