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 50 ML

Fair

Over: KING CREEK

1.5 MI NW OF DELTA/MESA C, Mesa, CO

Built 1933 Load: 25.4 t ADT: 9,800

COUNTY ROAD 32.5

Fair

Over: GRAND VALLEY CANAL

.1 MI N OF RD E, Mesa, CO

Built 1966 Load: 25.4 t ADT: 1,884

US 50 ML

Fair

Over: HUNGERFORD HOLLOW

1.6 MI EAST OF FOWLER, Otero, CO

Built 2006 Load: 25.4 t ADT: 4,100

US 350 ML

Fair

Over: DRAW

5 MILES SW OF LA JUNTA, Otero, CO

Built 1935 Load: 25.4 t ADT: 320

COUNTY ROAD BB

Fair

Over: ROCKY FORD CANAL

.5 MI E OF CR 21, Otero, CO

Built 1967 Load: 25.4 t ADT: 58

COUNTY ROAD 33

Fair

Over: HORSE CREEK SUPPLY CANAL

60 FEET N OF CR MM.5, Otero, CO

Built 1970 Load: 25.4 t ADT: 11

US 50 ML

Fair

Over: WILLOW CREEK OVERFLOW

4 MI EAST OF LAMAR, Prowers, CO

Built 1936 Load: 25.4 t ADT: 2,600

US 50 BUS. RT

Fair

Over: DRAW

JUST E. OF AVONDALE, Pueblo, CO

Built 1927 Load: 25.4 t ADT: 840

US 34 ML EBND

Fair

Over: GREELEY CANAL NO 3

18TH AVE & 10TH ST IN GRE, Weld, CO

Built 1947 Load: 25.4 t ADT: 4,350

SH 52 ML

Fair

Over: DENVER HUDSON CANAL

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

Built 1952 Load: 25.4 t ADT: 2,900

County Road 31

Fair

Over: St. Vrain Creek

0.6 Mi S of Co Rd 10, Boulder, CO

Built 1979 Load: 25.5 t ADT: 6,233

I 225 ML NBND

Fair

Over: ULSTER ST.

0.2 MI E. OF I25, Denver, CO

Built 1976 Load: 25.5 t ADT: 69,000

SH 86 ML

Fair

Over: BIG DRY CREEK

3.3 MI E. OF ELIZABETH, Elbert, CO

Built 1973 Load: 25.5 t ADT: 5,100

SH 121 ML

Fair

Over: ARVADA CHANNEL

0.1 MI. N. OF I 76, Jefferson, CO

Built 1982 Load: 25.5 t ADT: 58,000

County Road 19

Fair

Over: Larimer County Canal

2.0 Mi N of Co Rd 56, Larimer, CO

Built 1979 Load: 25.5 t ADT: 2,014

COUNTY RD 24.6

Fair

Over: GRAY CREEK

2.5 MI W OF CR 81.5, Las Animas, CO

Built 1937 Load: 25.5 t ADT: 112

County Road 41

Fair

Over: Sterling No 1 Ditch

0.6 Mi N of Co Rd 32, Logan, CO

Built 1950 Load: 25.5 t ADT: 505

County Road 70

Fair

Over: Morgan Creek

1.4 Mi E of Co Rd 80, Routt, CO

Built 1995 Load: 25.5 t ADT: 90

SH 114 ML

Fair

Over: FINDLEY GULCH

2 MI NW OF SAGUACHE 285, Saguache, CO

Built 1946 Load: 25.5 t ADT: 550

SH 93 ML

Fair

Over: BOULDER CREEK

N. of Arapahoe Ave, Boulder, CO

Built 2004 Load: 25.6 t ADT: 22,000

COUNTY ROAD B

Fair

Over: RIO COSTILLA

JUST E of CR 13, Costilla, CO

Built 1985 Load: 25.6 t ADT: 81

EB 20TH ST

Fair

Over: S PLATTE RIVER

E OF I-25 AT S PLATTE RIV, Denver, CO

Built 1994 Load: 25.6 t ADT: 11,726

I 25 ML NBND

Fair

Over: FRONTAGE ROAD

7.4 MI S OF SH10-WLSNBRG., Huerfano, CO

Built 1969 Load: 25.6 t ADT: 5,500

I 25 ML SBND

Fair

Over: FRONTAGE ROAD

7.4 MI SO OF JCT US 160, Huerfano, CO

Built 1969 Load: 25.6 t ADT: 5,500

SH 59 ML

Fair

Over: E SPRING CREEK TRIB.

16.1 MI S OF JCT I 70, Kit Carson, CO

Built 1960 Load: 25.6 t ADT: 380

US 287 ML

Fair

Over: LAKE CANAL

At Woodlawn Dr., Larimer, CO

Built 1930 Load: 25.6 t ADT: 25,000

COUNTY ROAD M

Fair

Over: GRAND VALLEY CANAL

.4 MI W OF RD 20, Mesa, CO

Built 1985 Load: 25.6 t ADT: 217

US 40 ML

Fair

Over: MAYBELL DITCH

2.8 MI EAST OF MAYBELL, Moffat, CO

Built 1963 Load: 25.6 t ADT: 760

COUNTY ROAD 6300

Fair

Over: MONTROSE AND DELTA CANAL

1.2 MI SE OF SH 90, Montrose, CO

Built 1950 Load: 25.6 t ADT: 714

US 50 ML

Fair

Over: LAMAR CANAL

IN LAMAR, Prowers, CO

Built 1931 Load: 25.6 t ADT: 13,000

NO DATA ENTERED

Fair

Over: FALL CREEK

17 MI W OF TELLURIDE, San Miguel, CO

Built 1987 Load: 25.6 t ADT: 63

120TH AVENUE

Fair

Over: SAN ARROYO CREEK

.3 MI W OF SHAMROCK ROAD, Adams, CO

Built 2000 Load: 25.7 t ADT: 20

US 6 ML EBND

Fair

Over: BURLINGTON CANAL

JUST S of I-76 INTRCHNG, Adams, CO

Built 1948 Load: 25.7 t ADT: 9,500

US 36 ML

Fair

Over: CANYON CREEK

IN BOULDER, Boulder, CO

Built 1951 Load: 25.7 t ADT: 45,000

WOLFF STREET

Fair

Over: WEIR GULCH

E OF SHERIDAN AT 500 BLOC, Denver, CO

Built 1976 Load: 25.7 t ADT: 443

MERIDIAN BLVD

Fair

Over: COTTONWOOD CREEK

0.2 MI FROM INTER W/HAVAN, Douglas, CO

Built 1991 Load: 25.7 t ADT: 4,765

COUNTY ROAD 240

Fair

Over: FLORIDA RIVER

2.5 MI NE OF CR 225, La Plata, CO

Built 1982 Load: 25.7 t ADT: 3,235

26 Road

Fair

Over: GRAND VALLEY CANAL

.1 MI N OF RD G, Mesa, CO

Built 1960 Load: 25.7 t ADT: 3,525

29 Road

Fair

Over: GOVT HIGHLINE CANAL

JUST N OF RD G, Mesa, CO

Built 1989 Load: 25.7 t ADT: 290

POPULAR ROAD

Fair

Over: SPRING CREEK

.9 MI SE OF SH 90, Montrose, CO

Built 1988 Load: 25.7 t ADT: 143

County Road 6

Fair

Over: Bijou Creek

0.7 Mi N of Co Rd C, Morgan, CO

Built 1993 Load: 25.7 t ADT: 70

County Road 29

Fair

Over: S Fork Frenchman Creek

0.7 Mi. No. of Co. Rd. 22, Phillips, CO

Built 1990 Load: 25.7 t ADT: 78

SH 142 ML

Fair

Over: N FK CONEJOS RIVER

1.4 MILES EAST OF MANASSA, Conejos, CO

Built 1935 Load: 25.8 t ADT: 530

US 24 ML

Fair

Over: DRAW

8.9 MI E OF CALHAN, El Paso, CO

Built 1935 Load: 25.8 t ADT: 3,900

County Road 21I

Fair

Over: Illinois River

0.4 Mi E of St Hwy 125, Jackson, CO

Built 1980 Load: 25.8 t ADT: 57

PLAINVIEW ROAD

Fair

Over: COAL CREEK

0.25 MI N OF SH 72, Jefferson, CO

Built 1990 Load: 25.8 t ADT: 75

County Road 103

Fair

Over: Joe Wright Creek

100 Ft N of St Hwy 14, Larimer, CO

Built 1952 Load: 25.8 t ADT: 143

County Road 64

Fair

Over: Poudre Valley Canal

0.1 Mi East of I-25, Larimer, CO

Built 1968 Load: 25.8 t ADT: 3,151

I 25 ML SBND

Fair

Over: SALADO CREEK

11.7 MI SO OF JCT US 160, Las Animas, CO

Built 1959 Load: 25.8 t ADT: 5,500

I 25 ML NBND

Fair

Over: RR SPUR

4.9 MI NO OF JCT SH 239, Las Animas, CO

Built 1969 Load: 25.8 t ADT: 6,000

Showing 2,051-2,100 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.