State profile · Below national median SD

Colorado bridge safety

Condition ratings, load ratings, and structural-deficiency data for every public highway bridge in Colorado — drawn straight from the FHWA National Bridge Inventory.

8,965
Public bridges
32.0%
Good condition
4.3%
Poor condition
4.3%
Structurally deficient

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 rated 0-4

Structurally Deficient

4.3%

387 bridges flagged for repair priority

-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 — Structurally deficient share 14.4%
National avg

Lower is better. Bar maxes at 30% (worst-state ceiling). National average sits at 7.0%.

Condition Distribution

Bridge inventory deck-condition mix — Colorado (FHWA NBI)

Colorado31.95761293920803%54.210819854991634%GoodFairPoorStructurally Deficient
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 on the structurally deficient leaderboard (lower share = better)

States are ranked by share of bridges flagged structurally deficient — the FHWA classification for any span where deck, superstructure, or substructure carries a condition rating of 4 or below. Lower percentages indicate stronger maintenance funding and inspection follow-through. States here sit immediately above and below Colorado on the same metric.

47

Tennessee

3.97% top marginal rate
Structure
Progressive
Burden @ $100K
$20,426

24

Maryland

4.27% top marginal rate
Structure
Progressive
Burden @ $100K
$5,527
Selected

08

Colorado

4.32% top marginal rate
Structure
Progressive
Burden @ $100K
$8,965

41

Oregon

4.46% top marginal rate
Structure
Progressive
Burden @ $100K
$8,310

39

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 composite NBI rating. Each is inspected at least every 24 months.

County Road 59

Structurally Deficient

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

Structurally Deficient

Over: NORTH CRESTONE CREEK

IN TOWN OF CRESTONE, Saguache, CO

Built 1991 Load: 2.3 t ADT: 65

CO Rd 32

Structurally Deficient

Over: Feeder Ditch

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

Built 1970 Load: 2.7 t ADT: 7

POTOMAC STREET

Structurally Deficient

Over: OBRIAN CANAL

0.2 MILE NORTH OF SH 2, Adams, CO

Built 1940 Load: 3.8 t ADT: 190

88TH AVENUE

Structurally Deficient

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

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

Railroad Drive

Poor

Over: Union Ditch

500 Ft S of W Taylor Ave, Weld, CO

Built 1930 Load: 32.7 t ADT: 202

County Road 33

Poor

Over: New Cache La Poudre Cana

50 Ft No of St Hwy 392, Weld, CO

Built 1971 Load: 32.7 t ADT: 2,877

County Road 34

Poor

Over: St. Vrain Creek

0.3 Mi E of Co Rd 17, Weld, CO

Built 1960 Load: 32.7 t ADT: 1,258

County Road 76.5

Poor

Over: Larimer and Weld Canal

30 Ft W of Co Rd 23, Weld, CO

Built 1930 Load: 32.7 t ADT: 304

US 85 ML NBND

Poor

Over: CACHE LA POUDRE RIVER

N. EDGE OF GREELEY, Weld, CO

Built 1962 Load: 32.8 t ADT: 11,000

COUNTY ROAD 33

Poor

Over: HELL CREEK

0.7 MILE SOUTH OF ROAD 3K, Lincoln, CO

Built 1955 Load: 33.0 t ADT: 20

COUNTY ROAD 23

Poor

Over: S. FORK REPUBLICAN RIVER

2 MI NORTH COUNTY RD AA, Kit Carson, CO

Built 1963 Load: 33.9 t ADT: 35

COUNTY ROAD 32

Poor

Over: ADOBE CREEK TRIB

0.2 MILE NORTH OF ROAD J, Lincoln, CO

Built 1956 Load: 34.3 t ADT: 73

COUNTY ROAD UU

Poor

Over: FT. LYON CANAL

1.8 MI W OF CR 8, Prowers, CO

Built 1984 Load: 34.7 t ADT: 36

US 36 ML

Poor

Over: DRAW

2.4 MI E OF JCT I 70, Arapahoe, CO

Built 1931 Load: 35.2 t ADT: 3,400

I 270 ML WBND

Poor

Over: SOUTH PLATTE RIVER

COMMERCE CITY, Adams, CO

Built 1969 Load: 35.3 t ADT: 48,500

I 76 ML EBND

Poor

Over: YORK STREET

1.4 MI NE OF JCT I 25, Adams, CO

Built 1967 Load: 35.7 t ADT: 42,000

County Road 5

Poor

Over: Piceance Creek

9.9 Mi S of St Hwy 64, Rio Blanco, CO

Built 1970 Load: 35.9 t ADT: 325

I 270 ML EBND

Poor

Over: SOUTH PLATTE RIVER

COMMERCE CITY, Adams, CO

Built 1969 Load: 36.2 t ADT: 48,500

US 40 ML

Poor

Over: CROOKED CREEK

W. EDGE OF TABERNASH, Grand, CO

Built 1941 Load: 36.7 t ADT: 11,000

SH 348 ML

Poor

Over: IRONSTONE CANAL

4.5 MI W of Olathe, Montrose, CO

Built 1963 Load: 37.2 t ADT: 590

County Road 62

Poor

Over: Elk River

0.4 Mi W of Co Rd 129, Routt, CO

Built 1982 Load: 37.6 t ADT: 397

I 70 FRONTAGE RD

Poor

Over: ADOBE CREEK SR

2.5 MI E OF FRUITA INT, Mesa, CO

Built 1969 Load: 38.0 t ADT: 2,532

COUNTY RD 89.5

Poor

Over: PATTON ARROYO

0.7 MI S OF SH 160, Las Animas, CO

Built 1940 Load: 38.3 t ADT: 18

160TH AVENUE

Poor

Over: SEEP CANAL

0.6 MILE EAST OF I-76, Adams, CO

Built 1960 Load: 38.8 t ADT: 1,539

HANKS CROSSING RD

Poor

Over: MUDDY CREEK

2.5 MI N OF US36, Adams, CO

Built 1960 Load: 39.7 t ADT: 46

I 270 ML EBND

Poor

Over: DITCH RD,BURLINGTON CANA

IN COMMERCE CITY, Adams, CO

Built 1969 Load: 40.0 t ADT: 48,500

SH 392 ML

Poor

Over: CACHE LA POUDRE RIVER

2 MI E OF JCT I 25, Larimer, CO

Built 1959 Load: 40.1 t ADT: 19,000

COUNTY ROAD 321

Poor

Over: HUERFANO-CUCHARAS DITCH

3 MI SE OF BROADACRE RD, Pueblo, CO

Built 1958 Load: 40.2 t ADT: 54

US 50 ML EBND

Poor

Over: APISHAPA RIVER

4.2 MI EAST OF FOWLER, Otero, CO

Built 1957 Load: 41.5 t ADT: 2,350

US 36 ML WBND

Poor

Over: BOULDER CREEK

28th STREET IN BOULDER, Boulder, CO

Built 1952 Load: 42.0 t ADT: 18,000

I 70 ML WBND

Poor

Over: COUNTY ROAD 201

6.2 MI W OF JCT DEERTRAIL, Arapahoe, CO

Built 1964 Load: 43.3 t ADT: 6,000

I 70 ML EBND

Poor

Over: COUNTY ROAD 201

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

Built 1964 Load: 43.3 t ADT: 6,000

County Road 4

Poor

Over: Big Hole Gulch

19.6 Mi West of St Hwy 13, Moffat, CO

Built 1950 Load: 43.4 t ADT: 167

I 70 ML WBND

Poor

Over: COUNTY ROADS 31N,125

2 MI W OF JCT SH 79, Arapahoe, CO

Built 1960 Load: 44.3 t ADT: 13,000

I 70 ML EBND

Poor

Over: COUNTY ROADS 31N,125

9.4 MI E OF JCT US 36, Arapahoe, CO

Built 1960 Load: 44.3 t ADT: 13,000

I 76 ML EBND

Poor

Over: MARSHALL STREET

.75 MI E. OF WADSWORTH, Jefferson, CO

Built 1980 Load: 44.3 t ADT: 38,000

I 70 ML WBND

Poor

Over: COUNTY ROADS 26N,105

2 MI E OF WATKINS INTERCH, Arapahoe, CO

Built 1960 Load: 44.4 t ADT: 13,000

I 70 ML EBND

Poor

Over: COUNTY ROADS 26N,105

2 MI E OF WATKINS INTERCH, Arapahoe, CO

Built 1960 Load: 44.4 t ADT: 13,000

I 70 ML WBND

Poor

Over: COUNTY ROADS 28N,113

5 MI W OF JCT SH 79, Arapahoe, CO

Built 1960 Load: 44.4 t ADT: 13,000

I 70 ML EBND

Poor

Over: COUNTY ROADS 28N,113

6.4 MI E OF JCT US 36, Arapahoe, CO

Built 1960 Load: 44.4 t ADT: 13,000

PICADILLY ROAD

Poor

Over: BURLINGTON CANAL

.2 MI S OF 144TH AVENUE, Adams, CO

Built 1992 Load: 44.6 t ADT: 2,480

BIGHORN ROAD

Poor

Over: GORE CREEK

.15 MI EAST OF I70, Eagle, CO

Built 1961 Load: 46.4 t ADT: 243

I 76 ML WBND

Poor

Over: CLEAR CREEK

1.1 M W OF JCT SH 95, Jefferson, CO

Built 1984 Load: 47.6 t ADT: 38,000

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

Related

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Data sourced from the FHWA National Bridge Inventory (NBI), latest released cycle. See our methodology for details. Retrieved and formatted by PlainBridges Editorial.

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). A "structurally deficient" rating is a repair-priority signal, not a closure or unsafe-to-cross designation. Consult a qualified civil engineer before making decisions based on this data.

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.