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 40 ML

Fair

Over: HIGHLINE CANAL

2.4 MI E OF I225, Arapahoe, CO

Built 1954 Load: 20.4 t ADT: 22,000

US285 ML

Fair

Over: PONCHA CREEK

5.0 MI S OF JCT US50, Chaffee, CO

Built 1938 Load: 20.4 t ADT: 2,800

US 50 ML

Fair

Over: DRAW

15 MI SE OF SALIDA, Fremont, CO

Built 1934 Load: 20.4 t ADT: 3,600

County Road 25E

Fair

Over: Pleas Valley Lake Canal

1.3 Mi N of Co Rd 52E, Larimer, CO

Built 1963 Load: 20.4 t ADT: 347

County Road 54E

Fair

Over: Pleas. Valley Lake Canal

0.7 Mi E of Co Rd 27E, Larimer, CO

Built 1962 Load: 20.4 t ADT: 246

County Road 56

Fair

Over: Larimer County Canal

1.1 Mi E of I-25, Larimer, CO

Built 1940 Load: 20.4 t ADT: 221

COUNTY ROAD 30

Fair

Over: HOLBROOK CANAL

40 FEET W CR 808, Otero, CO

Built 1974 Load: 20.4 t ADT: 19

COUNTY ROAD 3

Fair

Over: CRYSTAL RIVER

E SH133 REDSTONE/MP51.4, Pitkin, CO

Built 1947 Load: 20.4 t ADT: 713

County Road 57

Fair

Over: Latham Ditch

0.4 Mi N of Co Rd 52, Weld, CO

Built 1960 Load: 20.4 t ADT: 452

SH 133 FRONTAGE RD

Fair

Over: HUBBARD CREEK

ORIG 133 NEAR BOWIE, Delta, CO

Built 1937 Load: 20.5 t ADT: 10

PINE CLIFF ROAD

Fair

Over: WEST PLUM CREEK

0.4 MI W COUNTY ROAD 105, Douglas, CO

Built 1965 Load: 20.5 t ADT: 71

COUNTY ROAD M

Fair

Over: SPRING CREEK TRIBUTARY

0.5 MILES EAST OF ROAD 23, Kit Carson, CO

Built 1995 Load: 20.5 t ADT: 5

COUNTY ROAD 33.75

Fair

Over: GOVT. HIGHLINE CANAL

.8 MI N OF RD F, Mesa, CO

Built 1986 Load: 20.5 t ADT: 107

BAXTER RD

Fair

Over: ARKANSAS RIVER OVFLW

1.1 MI N OF JCT US 50B, Pueblo, CO

Built 1963 Load: 20.5 t ADT: 5,249

COUNTY ROAD 30

Fair

Over: LAKE FORK GUNNISON RIVER

7.6 MI S OF LAKE CITY, Hinsdale, CO

Built 1986 Load: 20.6 t ADT: 436

County Road 103

Fair

Over: Larimer Poudre Canal

6.8 Mi N of St Hwy 14, Larimer, CO

Built 1954 Load: 20.6 t ADT: 85

JAY JAY ROAD

Fair

Over: SPRING CREEK

6.1 MI NW OF MONTROSE, Montrose, CO

Built 1923 Load: 20.6 t ADT: 1,603

COUNTY ROAD 28

Fair

Over: HOLBROOK CANAL

0.02 MI N CR 808, Otero, CO

Built 1974 Load: 20.6 t ADT: 13

COUNTY ROAD JJ

Fair

Over: ROCKY FORD HIGHLINE CANA

.4 MI E OF CR 4, Otero, CO

Built 1945 Load: 20.6 t ADT: 64

FULLENWIDER ST.

Fair

Over: FARMERS UNION CANAL

JUST N OF WASHINGTON ST, Saguache, CO

Built 1976 Load: 20.6 t ADT: 2,193

County Road 29

Fair

Over: Larimer and Weld Canal

0.7 Mi N of Co Rd 76, Weld, CO

Built 1981 Load: 20.6 t ADT: 1,352

County Road 4

Fair

Over: Beaver Creek

0.80 Mi E of Co Rd PP, Yuma, CO

Built 1960 Load: 20.6 t ADT: 17

MONTVIEW BLVD

Fair

Over: SABLE DITCH

INT MONTVIEW AND FRASER, Adams, CO

Built 1981 Load: 20.7 t ADT: 1,830

COUNTY ROAD 3400

Fair

Over: SMITH FORK

.7 MI S GRANDVIEW MESA RD, Delta, CO

Built 1973 Load: 20.7 t ADT: 71

LARIMER STREET

Fair

Over: CHERRY CREEK

LARIMER ST AT SPEER BLVD, Denver, CO

Built 1958 Load: 20.7 t ADT: 5,242

COUNTY ROAD 38

Fair

Over: FISH CREEK

300 Yds S of DOL-008, Dolores, CO

Built 1960 Load: 20.7 t ADT: 21

Magrath Ave

Fair

Over: Drainage channel

.5 mi S of ent. to I25, El Paso, CO

Built 1995 Load: 20.7 t ADT: 100

US 50 ML

Fair

Over: CHERRY CREEK

13 MI EAST OF SALIDA, Fremont, CO

Built 1934 Load: 20.7 t ADT: 3,600

I 70 ML EBND

Fair

Over: UP RR

15.6 MI E OF JCT SH 65, Mesa, CO

Built 1980 Load: 20.7 t ADT: 9,000

COUNTY ROAD 60.5

Fair

Over: PLATEAU CREEK

JUST SE OF RD 330E, Mesa, CO

Built 1989 Load: 20.7 t ADT: 174

SPRING CREEK RD

Fair

Over: SUGAR WASH

.9 MI W OF CR 58.75, Montrose, CO

Built 1987 Load: 20.7 t ADT: 62

COUNTY ROAD WW

Fair

Over: TRIB. MIDDLE HORSE CREEK

JUST W OF CR 33, Prowers, CO

Built 1970 Load: 20.7 t ADT: 4

US 85 ML NBND

Fair

Over: LARIMER-WELD CANAL

3 MI N OF EATON, Weld, CO

Built 1931 Load: 20.7 t ADT: 4,250

County Road 43

Fair

Over: Lone Tree Creek

0.7 Mi N of Co Rd 70, Weld, CO

Built 1981 Load: 20.7 t ADT: 570

US 50 ML

Fair

Over: FOX CANYON CREEK

19.6 MI EAST OF SALIDA, Fremont, CO

Built 1936 Load: 20.8 t ADT: 3,600

CO RD 317

Fair

Over: COPPER CREEK

7.2 MI N OF CRESTED BUTTE, Gunnison, CO

Built 1972 Load: 20.8 t ADT: 381

County Road 19

Fair

Over: Poudre Valley Canal

50 Ft N of Co Rd 64, Larimer, CO

Built 1963 Load: 20.8 t ADT: 1,254

COUNTY RD 52.0

Fair

Over: CANYON DEL AGUA CREEK

JUST W OF CR 63.2, Las Animas, CO

Built 1935 Load: 20.8 t ADT: 32

I 25 SERVICE RD

Fair

Over: CF+I WATER LINES SR

S EDGE OF PUEBLO, Pueblo, CO

Built 1931 Load: 20.8 t ADT: 474

County Road 5

Fair

Over: Cottonwood Creek

0.9 Mi N. of US Hwy 138, Sedgwick, CO

Built 1981 Load: 20.8 t ADT: 20

County Road FF

Fair

Over: Trib. of Surveyor Creek

9.9 Mi. No. of Co Rd 38, Washington, CO

Built 1973 Load: 20.8 t ADT: 36

US 50 ML

Fair

Over: GRAVEYARD CREEK

11 MI W OF LAMAR, Bent, CO

Built 1923 Load: 20.9 t ADT: 2,200

Rogers Road

Fair

Over: Lykin Gulch

0.25 Mi W of Airport Rd, Boulder, CO

Built 2000 Load: 20.9 t ADT: 80

SMITH ROAD

Fair

Over: SAND CREEK

0.9 MI E OF QUEBEC, Denver, CO

Built 1955 Load: 20.9 t

US 50 ML

Fair

Over: E. FORK HAYDEN CREEK

7.7 MI E OF JCT HOWARD RO, Fremont, CO

Built 1936 Load: 20.9 t ADT: 3,600

US 6 ML

Fair

Over: DRAW

3.5 MI E OF NEW CASTLE, Garfield, CO

Built 1932 Load: 20.9 t ADT: 1,900

US 50 ML

Fair

Over: GUNNISON RIVER

W. SIDE OF GUNNISON, Gunnison, CO

Built 1957 Load: 20.9 t ADT: 6,200

SH 14 ML

Fair

Over: GRIZZLY CREEK

17 MI NE OF JCT US 40, Jackson, CO

Built 1950 Load: 20.9 t ADT: 1,300

KIPLING STREET

Fair

Over: FARMERS HIGHLINE CANAL

0.1 MI NORTH OF 80TH AVE, Jefferson, CO

Built 1971 Load: 20.9 t ADT: 9,958

COUNTY ROAD S

Fair

Over: SAND CREEK

0.7 MILES WEST OF HWY 385, Kit Carson, CO

Built 1987 Load: 20.9 t ADT: 159

Showing 1,451-1,500 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.