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

I 70 ML WBND

Good

Over: ELKHORN DR

VAIL VALLEY DRIVE, Eagle, CO

Built 1969 Load: 31.0 t ADT: 12,500

COUNTY ROAD 3T

Good

Over: ARIKAREE RIVER

0.6 MILE WEST OF ROAD 27, Lincoln, CO

Built 2011 Load: 31.0 t ADT: 65

County Road 34

Good

Over: Sterling Ditch No 1

0.4 Mi E of Co Rd 41, Logan, CO

Built 1994 Load: 31.0 t ADT: 313

COUNTY ROAD 45

Good

Over: COLORADO RIVER

.3 MI N OF I-70 (DEBEQUE), Mesa, CO

Built 1962 Load: 31.0 t ADT: 1,633

COUNTY ROAD C

Good

Over: RIO SAN ANTONIO

.3 MI E OF CR 12.5, Conejos, CO

Built 1988 Load: 31.1 t ADT: 126

SH 96 ML

Good

Over: DRAW

3.3 MI E OF CROWLEY-KIOWA, Kiowa, CO

Built 2011 Load: 31.1 t ADT: 420

Moss Creek Drive

Good

Over: Moss Creek

150 Ft N of Butte Pass, Larimer, CO

Built 1985 Load: 31.1 t ADT: 895

CR21C/OVERLAND TRL

Good

Over: Larimer County Canal

1.0 Mi N of Co Rd 54G, Larimer, CO

Built 1990 Load: 31.1 t ADT: 945

DALIA ROAD

Good

Over: DRY CREEK

.5 MI W OF CR 5700, Montrose, CO

Built 1992 Load: 31.1 t ADT: 241

County Road 31

Good

Over: Wildhorse Creek

0.1 MI No. of Co. Rd. 34, Phillips, CO

Built 1987 Load: 31.1 t ADT: 35

COUNTY ROAD L63

Good

Over: SAN MIGUEL RIVER

1 MI SW OF SH 145, San Miguel, CO

Built 1985 Load: 31.1 t ADT: 39

SH 96 ML

Good

Over: COLT CREEK

1.7 MI E OF ARLINGTON, Kiowa, CO

Built 1968 Load: 31.2 t ADT: 420

I 70 ML EBND

Good

Over: COUNTY ROAD 57

9.4 MI. E. OF HWY 385, Kit Carson, CO

Built 1969 Load: 31.2 t ADT: 4,950

2ND AVENUE

Good

Over: JUNCTION CREEK

JUST N OF 24TH STREET, La Plata, CO

Built 1989 Load: 31.2 t ADT: 1,232

County Road 20

Good

Over: Dry Creek

0.5 Mi E of Co Rd 29, Larimer, CO

Built 1986 Load: 31.2 t ADT: 2,113

County Road 38

Good

Over: Cache La Poudre River

0.3 Mi East of I-25, Larimer, CO

Built 2010 Load: 31.2 t ADT: 31,363

SH 13 ML

Good

Over: MUD SPRING DRAW

30 MILES NORTH OF CRAIG, Moffat, CO

Built 1998 Load: 31.2 t ADT: 860

SH 144 ML

Good

Over: COTTONWOOD DRAW

3 MI E of GOODRICH, Morgan, CO

Built 1969 Load: 31.2 t ADT: 380

COUNTY ROAD 10

Good

Over: JOHNNY BRANCH CREEK

12.1 MI S OF CR N, Bent, CO

Built 1992 Load: 31.3 t ADT: 8

US 385 ML

Good

Over: SMOKEY HILL RIVER

1.5 MI N OF JCT US 40, Cheyenne, CO

Built 1970 Load: 31.3 t ADT: 730

County Road 5

Good

Over: Cache La Poudre River

0.9 Mi N of Co Rd 9, Larimer, CO

Built 1997 Load: 31.3 t ADT: 7,692

SH 318 ML

Good

Over: LITTLE SNAKE RIVER

14.8 MI NW OF JCT US 40, Moffat, CO

Built 1984 Load: 31.3 t ADT: 180

US 40 ML

Good

Over: MILLER CREEK

16 MI. E. OF DINOSAUR, Moffat, CO

Built 1971 Load: 31.3 t ADT: 630

Hospital Loop Road

Good

Over: Cedar Mountain Gulch

.10 Mi West of CR7, Moffat, CO

Built 2008 Load: 31.3 t ADT: 939

SH 52 ML

Good

Over: SPEER CANAL

4.9 MI E OF JCT US 85, Weld, CO

Built 1971 Load: 31.3 t ADT: 11,000

Co Rd 3 / 119th S

Good

Over: Dry Creek No 2

0.9 Mi S of SH119, Boulder, CO

Built 2013 Load: 31.4 t ADT: 2,541

SH 470 ML EBND

Good

Over: BROADWAY

2.5 MI E OF JCT US 85, Douglas, CO

Built 1984 Load: 31.4 t ADT: 41,000

I 70 ML EBND

Good

Over: GAME UNDERPASS

5 MI E OF JCT US 6, Eagle, CO

Built 1977 Load: 31.4 t ADT: 11,000

US 24 BYPASS

Good

Over: EAST FORK SAND CREEK

1.2 MI. S. OF JCT US 24 M, El Paso, CO

Built 1994 Load: 31.4 t ADT: 60,000

NFSR 634

Good

Over: REED GULCH

7.4 MI N OF GARDNER, Huerfano, CO

Built 1997 Load: 31.4 t ADT: 26

EB 86TH PARKWAY

Good

Over: CROKE CANAL

0.1 MI WEST OF KIPLING, Jefferson, CO

Built 1984 Load: 31.4 t ADT: 7,964

US 385 ML

Good

Over: BEAVER CREEK

6.9 MI. SO OF JCT. S.H. 2, Kit Carson, CO

Built 1969 Load: 31.4 t ADT: 1,300

Rawhide Flats Road

Good

Over: Wire Draw Trib.

3.4 MI N of CR15 and CR84, Larimer, CO

Built 2008 Load: 31.4 t ADT: 45

County Road 17

Good

Over: North Poudre Ditch

50 Ft N of Co Rd 70, Larimer, CO

Built 2019 Load: 31.4 t ADT: 229

SH 12 ML

Good

Over: REILLY CANYON

COKEDALE, Las Animas, CO

Built 1974 Load: 31.4 t ADT: 1,900

COUNTY ROAD 64.3

Good

Over: BUZZARD CREEK

.5 MI N of RD 330E, Mesa, CO

Built 2018 Load: 31.4 t ADT: 175

ROUTT AVE.

Good

Over: BESSEMER DITCH

CORNER OF ROUTT, Pueblo, CO

Built 1965 Load: 31.4 t ADT: 921

Ash Avenue

Good

Over: Cache La Poudre River

50 Ft. N of Int w/12th St, Weld, CO

Built 1991 Load: 31.4 t ADT: 1,048

County Road 3

Good

Over: Little Thompson River

0.5 Mi N of Co Rd 40.5, Weld, CO

Built 1987 Load: 31.4 t ADT: 116

County Road 6

Good

Over: Thompson Ditch

0.1 Mi E of CO RD 17, Weld, CO

Built 2021 Load: 31.4 t ADT: 4,326

County Road 35

Good

Over: Platte Valley Canal

0.5 Mi N of Co Rd 38, Weld, CO

Built 1966 Load: 31.4 t ADT: 280

SH 14 ML

Good

Over: CACHE LA POUDRE RIVER

4 MI W. US 287, Larimer, CO

Built 1984 Load: 31.5 t ADT: 2,100

US 160 ML

Good

Over: BNSF RR

IN TRINIDAD (NEW 160 BYPA, Las Animas, CO

Built 1992 Load: 31.5 t ADT: 3,700

County Road 16.5

Good

Over: Pawnee Ditch

0.1 Mi. E. of Co. Rd. 29, Logan, CO

Built 1999 Load: 31.5 t ADT: 244

US 50 ML

Good

Over: WELDON CREEK

3.2 MI W OF PONCHA SPGS., Chaffee, CO

Built 2003 Load: 31.6 t ADT: 2,800

CO RD 3

Good

Over: CRYSTAL RIVER

3.0 MI NW OF MARBLE, Gunnison, CO

Built 1986 Load: 31.6 t ADT: 791

YOUNGFIELD ST

Good

Over: CLEAR CREEK

.79 MI N OF W 32ND AVENUE, Jefferson, CO

Built 1988 Load: 31.6 t ADT: 14,909

County Road 93

Good

Over: S. Platte River Overflow

1.2 Mi N of I-76, Logan, CO

Built 2002 Load: 31.6 t ADT: 58

COUNTY ROAD 33

Good

Over: CHERAW LAKE DRAIN DITCH

2.1 MI S OF CR JJ.5, Otero, CO

Built 1995 Load: 31.6 t ADT: 67

I 70 WBND

Good

Over: COTTONWOOD CREEK

3.8 MI E OF PARACHUTE, Garfield, CO

Built 1981 Load: 31.7 t ADT: 10,000

Showing 6,351-6,400 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.