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

Namaqua Avenue

Good

Over: Big Barnes Ditch

600 Ft S of US Hwy 34, Larimer, CO

Built 1992 Load: 32.8 t ADT: 4,626

G Road

Good

Over: GRAND VALLEY CANAL

.1 MI E OF ROAD 26.00, Mesa, CO

Built 1991 Load: 32.8 t ADT: 5,776

COUNTY ROAD 5875

Good

Over: MONTROSE AND DELTA CANAL

.3 MI S OF MAPLEGROVE, Montrose, CO

Built 1940 Load: 32.8 t ADT: 466

County Road 19

Good

Over: Larimer County Canal

0.95 Mi North St Hwy 14, Weld, CO

Built 2009 Load: 32.8 t ADT: 325

County Road 124

Good

Over: Porter Creek

1.5 Mi E of Co Rd 69, Weld, CO

Built 1989 Load: 32.8 t ADT: 110

SH 53 ML

Good

Over: 64TH ST DRAIN CANAL

.2 MI S OF I76/BROADWAY, Adams, CO

Built 1993 Load: 32.9 t ADT: 14,000

COUNTY ROAD DD

Good

Over: MONTE VISTA CANAL

.5 MI W OF CR 11, Conejos, CO

Built 1993 Load: 32.9 t ADT: 46

CR 28-HILLCREST DR

Good

Over: EAGLE RIVER

JUST N OF SH 6, Eagle, CO

Built 1981 Load: 32.9 t ADT: 3,280

County Road 18

Good

Over: North Platte River

0.1 Mi W of Co Rd 9, Jackson, CO

Built 1991 Load: 32.9 t ADT: 163

County Road 28

Good

Over: Buffalo Creek

2 MI E of St Hwy 14, Jackson, CO

Built 1989 Load: 32.9 t ADT: 45

US 287 ML

Good

Over: DRY CREEK

7.2 MI N OF JCT SH 66, Larimer, CO

Built 2005 Load: 32.9 t ADT: 18,000

COUNTY RD 41.7

Good

Over: SARCILLO CANYON CREEK

3.5 MI NW OF SAN JUAN, Las Animas, CO

Built 1990 Load: 32.9 t ADT: 161

COUNTY RD 85.0

Good

Over: PURGATOIRE RIVER

JUST N OF CR 38.4, Las Animas, CO

Built 1985 Load: 32.9 t ADT: 579

6th Avenue

Good

Over: Cache La Poudre River

200 Ft N of A Street, Weld, CO

Built 1987 Load: 32.9 t ADT: 1,604

SH 89 ML

Good

Over: DRAW

4.8 MI NO OF JCT SH 116, Baca, CO

Built 2002 Load: 33.0 t ADT: 130

Kalmia Avenue

Good

Over: Dry Creek

350 Ft East of US 36, Boulder, CO

Built 2017 Load: 33.0 t ADT: 2,621

US 36 ML

Good

Over: NORTH ST VRAIN CREEK

IN LYONS, Boulder, CO

Built 2007 Load: 33.0 t ADT: 9,000

COUNTY ROAD 49

Good

Over: SMOKY HILL RIVER

1.0 MI N OF CR T, Cheyenne, CO

Built 1986 Load: 33.0 t ADT: 38

CASTLE OAK DRIVE

Good

Over: CHERRY CREEK

0.4 MI W OF HIGHWAY 83, Douglas, CO

Built 2006 Load: 33.0 t ADT: 3,995

SH 115 ML

Good

Over: BEAVER CREEK

2.9 MI N OF PENROSE, Fremont, CO

Built 2002 Load: 33.0 t ADT: 8,900

HOGBACK ROAD

Good

Over: TURKEY CREEK

1.0 MI E OF CO 8, Jefferson, CO

Built 2018 Load: 33.0 t ADT: 220

Wildbriar Lane

Good

Over: Big Thompson River

0.2 Mi NW Cedar Cove Rd, Larimer, CO

Built 2019 Load: 33.0 t ADT: 5

SH 94 ML

Good

Over: E BR STEEL FORK CRK.

16 MI W OF PUNKIN CENTER, Lincoln, CO

Built 1968 Load: 33.0 t ADT: 630

SH 71 ML

Good

Over: MIDDLE RUSH CREEK

7.7 MI N OF SH 94-PUNKIN, Lincoln, CO

Built 2008 Load: 33.0 t ADT: 700

County Road 2.5

Good

Over: Prewitt Outlet Canal

0.5 MI W of US HWY 6, Logan, CO

Built 2011 Load: 33.0 t ADT: 27

COUNTY ROAD I.9

Good

Over: GOVNMENT HIGHLINE CANAL

AT CAMEO, Mesa, CO

Built 2017 Load: 33.0 t ADT: 309

County Road 28

Good

Over: Cottonwood Creek

0.2 Mi E. of Co. Rd. 3, Sedgwick, CO

Built 1992 Load: 33.0 t ADT: 29

SH 60 ML

Good

Over: SOUTH PLATTE RIVER

3.7 MI E OF JCT SH 257, Weld, CO

Built 2018 Load: 33.0 t ADT: 7,100

County Road 53

Good

Over: South Platte River

1.4 MI NO OF JCT US 34, Weld, CO

Built 2020 Load: 33.0 t ADT: 4,689

E-470 SB

Good

Over: Coal Creek

18.44 MI FROM I25, Arapahoe, CO

Built 1997 Load: 33.1 t ADT: 19,755

COUNTY ROAD 107

Good

Over: SOUTH ARKANSAS RIVER

1.1 MI S OF SALIDA, Chaffee, CO

Built 1985 Load: 33.1 t ADT: 1,176

MINER STREET

Good

Over: CLEAR CREEK

MINER ST OVER CLEAR CREEK, Clear Creek, CO

Built 1990 Load: 33.1 t ADT: 951

26TH AVENUE

Good

Over: WESTERLY CREEK

JUST EAST OF BEELER ST, Denver, CO

Built 2005 Load: 33.1 t ADT: 2,690

BERRIDGE ROAD

Good

Over: HORSE CREEK

1.9 MI N OF JUDGE ORR RD, El Paso, CO

Built 1998 Load: 33.1 t ADT: 69

SH 125 ML

Good

Over: NORTH PLATTE RIVER

16 MILES NORTH OF WALDEN, Jackson, CO

Built 1986 Load: 33.1 t ADT: 420

KIPLING STREET

Good

Over: VAN BIBBER CREEK

JUST SOUTH OF 58TH AVENUE, Jefferson, CO

Built 2006 Load: 33.1 t ADT: 279

COUNTY ROAD N

Good

Over: CROOKED ARROYO TRIBUTARY

JUST E OF OF CR 21.75, Otero, CO

Built 2001 Load: 33.1 t ADT: 12

I 25 ML SBND

Good

Over: STEEL HOLLOW

8.2 MI S OF EL PASO-PUEBL, Pueblo, CO

Built 2006 Load: 33.1 t ADT: 17,500

County Road 84

Good

Over: Larimer County Canal

0.6 Mi E of Co Rd 19, Weld, CO

Built 1990 Load: 33.1 t ADT: 96

Niwot Road CR34

Good

Over: Boulder Feeder Ditch

100 Ft. E of N. 55th St, Boulder, CO

Built 2010 Load: 33.2 t ADT: 2,084

Grandview Meadow D

Good

Over: Dry Creek

0.4 Mi So of Nelson Rd, Boulder, CO

Built 2004 Load: 33.2 t ADT: 3,692

US 24 ML EBND

Good

Over: CITY ST,UP RR,DITCH

.2 MI E OF JCT I-25, El Paso, CO

Built 1990 Load: 33.2 t ADT: 47,000

I 25 ML NBND

Good

Over: SAND CREEK

1.1 MI NW EL PASO PUEBLO, El Paso, CO

Built 1929 Load: 33.2 t ADT: 17,500

COUNTY ROAD 59

Good

Over: SOUTH PLATTE RIVER

NW ELEVEN MI RESERVOIR, Park, CO

Built 1986 Load: 33.2 t ADT: 239

US 287 ML

Good

Over: DRAW

6 MILES S. OF LAMAR, Prowers, CO

Built 1948 Load: 33.2 t ADT: 3,000

I 70 EB OFFRAMP

Good

Over: CO RIVER,BP R

W. OF HANGING LAKE TUNNEL, Garfield, CO

Built 1992 Load: 33.3 t ADT: 356

SCHUMAKER ROAD

Good

Over: LOST CREEK TRIBUTARY

0.1 MI S OF US HWY 36, Adams, CO

Built 1993 Load: 33.4 t ADT: 10

E470 RAMP - I76 EB

Good

Over: Relocated Third Creek

35.28 MI FROM I25, Adams, CO

Built 2002 Load: 33.4 t ADT: 3,000

COUNTY ROAD M.5

Good

Over: CULEBRA CREEK

.2 MI SE OF CR L.7, Costilla, CO

Built 1992 Load: 33.4 t ADT: 84

WATERTON ROAD

Good

Over: LOUVIERS GULCH

0.9 MI W OF LOUVIERS BLVD, Douglas, CO

Built 2020 Load: 33.4 t ADT: 476

Showing 6,851-6,900 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.