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

SH 63 ML

Poor

Over: DRAW

19 MI NO OF JCT US 36, Washington, CO

Built 1954 Load: 27.7 t ADT: 530

County Road 4

Poor

Over: Denver Hudson Canal

0.1 Mi E of Co Rd 41, Weld, CO

Built 1996 Load: 27.8 t ADT: 1,382

88TH AVENUE

Poor

Over: LOST CREEK

1.3 MI E OF SCHUMAKER RD, Adams, CO

Built 1995 Load: 27.9 t ADT: 856

SH 86 ML

Poor

Over: WEST BIJOU CREEK

9.0 MI E OF KIOWA, Elbert, CO

Built 1966 Load: 27.9 t ADT: 1,600

I 70 STRASBURG SPU

Poor

Over: UP RR

0.15 MI N OF JCT I 70 ML, Arapahoe, CO

Built 1962 Load: 28.0 t ADT: 4,400

County Road 91

Poor

Over: Empire Intake Canal

1.3 Mi S of US Hwy 34, Weld, CO

Built 1970 Load: 28.0 t ADT: 77

US 34 EB

Poor

Over: UP RR

S. SIDE OF GREELEY, Weld, CO

Built 1962 Load: 28.1 t ADT: 16,500

I 70 ML WBND

Poor

Over: WEST 20TH AVE

2 MI W OF JCT SH 58, Jefferson, CO

Built 1968 Load: 28.2 t ADT: 45,500

SH 69 ML

Poor

Over: DRAW

2 MILES NW OF GARDNER, Huerfano, CO

Built 1957 Load: 28.4 t ADT: 420

AVENUE F

Poor

Over: BEAR CREEK

S OF SH 74 IN KITTREDGE, Jefferson, CO

Built 1987 Load: 28.4 t ADT: 540

COUNTY ROAD 11.25

Poor

Over: CATLIN CANAL

.1 MI N OF SH 50, Otero, CO

Built 1950 Load: 28.4 t ADT: 73

COUNTY ROAD MM

Poor

Over: UNNAMED DRAIN

0.1 MI E OF CR 8, Prowers, CO

Built 1975 Load: 28.6 t ADT: 314

SH 83 ML

Poor

Over: WEST CHERRY CREEK

10.4 MI N OF DOUGLAS-EL, Douglas, CO

Built 1968 Load: 28.7 t ADT: 4,400

COUNTY ROAD SS

Poor

Over: TRIBUTARY OF AMITY CANAL

.2 MI W OF CR 8, Prowers, CO

Built 1986 Load: 28.7 t ADT: 59

SH 177 ML

Poor

Over: LITTLE DRY CREEK

GREENWOOD VILLAGE, Arapahoe, CO

Built 1965 Load: 29.0 t ADT: 29,000

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

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

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 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

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

Showing 8,801-8,850 of 8,965 bridges

Related

All states → | National rankings → | Understanding conditions → | SD bridges explained →
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.