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 385 ML

Good

Over: DRAW

6.3 MI N OF JCT US 40, Cheyenne, CO

Built 1995 Load: 36.3 t ADT: 730

I 25 ML

Good

Over: FOX STREET

IN DENVER, Denver, CO

Built 1949 Load: 36.3 t ADT: 242,000

WOODMEN RD EBND

Good

Over: SAND CREEK

.1 MI W OF MARKSHEFFEL RD, El Paso, CO

Built 2009 Load: 36.3 t ADT: 36,984

WOODMEN RD WBND

Good

Over: SAND CREEK

.1 MI W OF MARKSHEFFEL RD, El Paso, CO

Built 2009 Load: 36.3 t ADT: 34,229

SH 120 ML

Good

Over: DRAW, UP RR

1.5 MI E OF FLORENCE, Fremont, CO

Built 2015 Load: 36.3 t ADT: 800

I 70 ML WBND

Good

Over: FRENCH CREEK

3 MI E OF SHOSHONE DAM, Garfield, CO

Built 1989 Load: 36.3 t ADT: 8,500

I25 ML SBND

Good

Over: WALSEN ARROYO

1.7 MI S.OF WALSENBURG BU, Huerfano, CO

Built 2001 Load: 36.3 t ADT: 5,500

COUNTY ROAD S

Good

Over: KIOWA CREEK

0.3 MI WEST OF EADS, Kiowa, CO

Built 1995 Load: 36.3 t ADT: 57

SPRAGUE LAKE ROAD

Good

Over: GLACIER CREEK

0.2 miles from Bear Lake, Larimer, CO

Built 2004 Load: 36.3 t ADT: 500

County Road 54

Good

Over: Box Elder Creek

0.5 Mi East of I-25, Larimer, CO

Built 1993 Load: 36.3 t ADT: 98

US 40 ML

Good

Over: UP RR

0.7 MI E OF KIT CARSON, Cheyenne, CO

Built 2007 Load: 36.4 t ADT: 3,500

COUNTY ROAD B

Good

Over: UNCOMPAHGRE RIVER

5.2 MI SE OF DELTA, Delta, CO

Built 1996 Load: 36.4 t ADT: 162

County Road 36

Good

Over: Prewitt Inlet Canal

0.7 Mi N of Co Rd AA, Morgan, CO

Built 2000 Load: 36.4 t ADT: 13

US 50 BUS. RT.

Good

Over: BNSF RR

SE EDGE OF PUEBLO, Pueblo, CO

Built 2003 Load: 36.4 t ADT: 23,000

US 34 ML WBND

Good

Over: 1ST AVE

0.72 MI. E OF JCT US 85, Weld, CO

Built 1975 Load: 36.4 t ADT: 8,500

SB UNIVERSITY BLVD

Good

Over: CHERRY CREEK

S OF CHERRY CREEK DR, Denver, CO

Built 1989 Load: 36.5 t ADT: 22,904

NB CENTRAL PK BLVD

Good

Over: E-W LINEAR

NORTH OF 25TH AVENUE, Denver, CO

Built 2004 Load: 36.5 t ADT: 11,085

SB CENTRAL PK BLVD

Good

Over: E-W LINEAR

NORTH OF 25TH AVENUE, Denver, CO

Built 2004 Load: 36.5 t ADT: 8,390

I 25 BUS RT

Good

Over: SULL CREEK

2 MILES NORTH OF JCT US 1, Huerfano, CO

Built 2014 Load: 36.5 t ADT: 5,100

Piney River Drive

Good

Over: Greeley Loveland Canal

0.1 Mi N of McWhinney Blv, Larimer, CO

Built 2000 Load: 36.5 t ADT: 1,319

County Road 35

Good

Over: Springdale Ditch

0.6 Mi. N. of Co. Rd. 24, Logan, CO

Built 1993 Load: 36.5 t ADT: 647

COUNTY ROAD 6530

Good

Over: LOUTSENHIZER CANAL

.4 MI N OF FLAT TOP RD, Montrose, CO

Built 2009 Load: 36.5 t ADT: 72

US 550 ML

Good

Over: MONTROSE+DELTA CANAL

4.5 MI S OF MONTROSE, Montrose, CO

Built 1992 Load: 36.5 t ADT: 11,000

COUNTY ROAD Z

Good

Over: CROOKED ARROYO

1.8 MI W OF SH 350, Otero, CO

Built 1985 Load: 36.5 t ADT: 172

SH44 ML(104TH AVE)

Good

Over: SOUTH PLATTE RIVER

1.1 MI W OF JCT US 85, Adams, CO

Built 2013 Load: 36.6 t ADT: 14,000

US 36 ML

Good

Over: DAVIDSON DITCH

2.2 MI SE OF JCT SH 157, Boulder, CO

Built 2015 Load: 36.6 t ADT: 77,000

COLORADO BLVD

Good

Over: CLEAR CREEK

IN IDAHO SPRINGS, Clear Creek, CO

Built 2018 Load: 36.6 t ADT: 3,792

WESTBOUND 56TH AVE

Good

Over: MONTBELLO DITCH

JUST W. OF HAVANA ST, Denver, CO

Built 2010 Load: 36.6 t ADT: 17,679

SPECTRUM LOOP ROAD

Good

Over: VOYAGER PKWY/ I-25 RAMPS

0.5 MI S OF N GATE BLVD, El Paso, CO

Built 2019 Load: 36.6 t ADT: 783

LEMESANY ROAD

Good

Over: BIG SANDY CREEK TRIB

.2 MI NORTH OF RAMAH ROAD, El Paso, CO

Built 1999 Load: 36.6 t ADT: 36

US 34 ML

Good

Over: N FK COLORADO RIVER

11.9 MI NO OF JCT US 40, Grand, CO

Built 2018 Load: 36.6 t ADT: 6,200

US 6 ML

Good

Over: DRAW

7.3 MI E OF JCT I 70, Jefferson, CO

Built 1949 Load: 36.6 t ADT: 7,500

US 24 ML

Good

Over: UP RR

9 MI S OF LEADVILLE, Lake, CO

Built 1995 Load: 36.6 t ADT: 4,200

COUNTY ROAD 24

Good

Over: GRAND VALLEY CANAL

.1 MI N OF RD I, Mesa, CO

Built 2013 Load: 36.6 t ADT: 2,362

FSR 523

Good

Over: RED MOUNTAIN CREEK

10.2 MI SSW OF CREEDE, Mineral, CO

Built 1981 Load: 36.6 t ADT: 78

TROUT ROAD

Good

Over: UNCOMPAHGRE RIVER

0.25 M E OF SH 550, Montrose, CO

Built 1989 Load: 36.6 t ADT: 259

SH 266 ML

Good

Over: FT LYON STORAGE CANAL

2.5 MI NE OF ROCKY FORD, Otero, CO

Built 2013 Load: 36.6 t ADT: 380

COUNTY ROAD 24.5

Good

Over: ARKANSAS RIVER

0.9 MI N OF SWINK, Otero, CO

Built 1986 Load: 36.6 t ADT: 723

I 70 EBND

Good

Over: FOREST SERVICE ROAD

2.6 MI W OF EISENHWR TUNL, Summit, CO

Built 2021 Load: 36.6 t ADT: 36,000

17th AVE

Good

Over: TOLLGATE CREEK

Just E OF FITZSIMONS PY, Arapahoe, CO

Built 2011 Load: 36.7 t ADT: 1,325

US 287 ML

Good

Over: DRAW

0.5 MILE NORTH OF CAMPO, Baca, CO

Built 1971 Load: 36.7 t ADT: 3,000

SH 88-FEDERAL BLVD

Good

Over: Light Rail

JUST N OF HOLDEN, Denver, CO

Built 2011 Load: 36.7 t ADT: 39,000

MOORE STREET

Good

Over: LENA GULCH

200 FT S OF 38TH AVENUE, Jefferson, CO

Built 1986 Load: 36.7 t ADT: 263

COUNTY ROAD II35

Good

Over: NATURITA CREEK

1 MI S OF REDVALE, Montrose, CO

Built 1991 Load: 36.7 t ADT: 31

SH 348 ML

Good

Over: Ironstone Canal

4.7 MI W of Olathe, Montrose, CO

Built 2001 Load: 36.7 t ADT: 270

County Road 61.5

Good

Over: Crow Creek

0.05 Mi N of Co Rd 68, Weld, CO

Built 2000 Load: 36.7 t ADT: 178

County Rd 64/O St.

Good

Over: Eaton Draw

0.8 Mi E of US Hwy 85, Weld, CO

Built 1995 Load: 36.7 t ADT: 564

County Road 84

Good

Over: Pierce Lateral Canal

0.7 Mi E of Co Rd 21, Weld, CO

Built 1990 Load: 36.7 t ADT: 102

136TH AVENUE

Good

Over: BIG DRY CREEK

0.6 MI E OF I-25, Adams, CO

Built 2004 Load: 36.8 t ADT: 22,524

COUNTY ROAD 10

Good

Over: FT. LYON CANAL

2.3 MI N OF SH 194, Bent, CO

Built 1999 Load: 36.8 t ADT: 77

Showing 7,251-7,300 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.