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

COUNTY ROAD 20

Good

Over: NORTH FORK HENSON CREEK

8.4 MI W OF LAKE CITY, Hinsdale, CO

Built 1986 Load: 18.6 t ADT: 166

95th Avenue

Good

Over: Cache La Poudre River

0.4 Mi N of Co Rd 62, Weld, CO

Built 1988 Load: 18.6 t ADT: 105

COUNTY ROAD 60

Good

Over: MIDDLE BEAVER CREEK

1.5 MILES NORTH OF ROAD V, Kit Carson, CO

Built 1968 Load: 18.7 t ADT: 14

Woody Creek Lane

Good

Over: Larimer County Canal

100 FT W of CO-1, Larimer, CO

Built 2016 Load: 18.7 t ADT: 85

NFSR 615.1

Good

Over: NEWCOMB CREEK

3.8 MI N OF JCT 60/615, Jackson, CO

Built 2001 Load: 18.8 t ADT: 50

County Road 24

Good

Over: Upper Platte Beaver Cnl

0.5 Mi N of SH34, Morgan, CO

Built 2022 Load: 18.8 t ADT: 1,229

COUNTY ROAD 32

Good

Over: LANDSMAN CREEK TRIB.

0.25 MI S OF ROAD R, Kit Carson, CO

Built 1985 Load: 19.0 t ADT: 61

HILLCREST DRIVE

Good

Over: MONTROSE ARROYO

0.1 MI S OF E NIAGARA RD., Montrose, CO

Built 2006 Load: 19.1 t ADT: 5,233

WOLF CREEK ROAD

Good

Over: WOLF CREEK

0.3 MI N OF 26TH AVE, Adams, CO

Built 1991 Load: 19.2 t ADT: 44

County Road 62

Good

Over: Crow Creek

0.8 Mi E of Co Rd 57, Weld, CO

Built 1965 Load: 19.2 t ADT: 39

RAMP TO SH 470 WBD

Good

Over: BEAR CREEK R

SE CRNR OF MORRISON RD. I, Jefferson, CO

Built 1989 Load: 19.3 t ADT: 39,500

County Road 27

Good

Over: Buckhorn Creek

6.1 Mi NW of CR38E, Larimer, CO

Built 2015 Load: 19.4 t ADT: 624

County Road 39

Good

Over: Oak Creek

0.2 Mi S of Co Rd 35, Routt, CO

Built 1984 Load: 19.4 t ADT: 39

IRR# CO RD 500

Good

Over: SANDOVAL CANYON

4.6 MI E OF ARBOLES, Archuleta, CO

Built 1970 Load: 19.5 t ADT: 182

COUNTY ROAD 64.6

Good

Over: PLATEAU CREEK

1.2 MI SE Road N.5, Mesa, CO

Built 2014 Load: 19.5 t ADT: 23

RACE ST

Good

Over: EAST HARVARD GULCH

RACE ST AT E HARVARD AVE, Denver, CO

Built 1967 Load: 19.6 t ADT: 366

RAMP TO US24ML WB

Good

Over: SPRING CREEK R

OVER SPRING CREEK, El Paso, CO

Built 1995 Load: 19.7 t ADT: 4,100

SH 149 ML

Good

Over: RIO GRANDE

7.0 MI SE OF CREEDE, Mineral, CO

Built 1958 Load: 19.7 t ADT: 1,400

SH 103 ML

Good

Over: CHICAGO CREEK

0.5 MI S OF JCT I 70 ML, Clear Creek, CO

Built 1958 Load: 19.9 t ADT: 2,300

US 40 ML

Good

Over: DRAW

10.21 MI SE OF HUGO, Lincoln, CO

Built 1987 Load: 19.9 t ADT: 3,000

NO DATA ENTERED

Good

Over: WILLIAMS FORK

T25N, R77W, SECTION 31, Grand, CO

Built 1969 Load: 20.0 t ADT: 11

SH 96 ML

Good

Over: DRAW

15.45 MI E OF JCT SH 287, Kiowa, CO

Built 1980 Load: 20.0 t ADT: 430

PINION STREET

Good

Over: GROVE CREEK

JUST W OF RIVER COURT, Mesa, CO

Built 1990 Load: 20.0 t ADT: 46

SH 112 ML

Good

Over: FARMERS UNION CANAL

12.6 MI NE OF JCT US 160, Saguache, CO

Built 1948 Load: 20.0 t ADT: 1,700

County Road 23

Good

Over: Peterson Ditch

0.9 Mi. No. of US Hwy 138, Sedgwick, CO

Built 1996 Load: 20.0 t ADT: 4

County Road X

Good

Over: North Sand Creek

0.15 Mi N of Co Rd 3, Yuma, CO

Built 1968 Load: 20.0 t ADT: 32

E-470 NB

Good

Over: South Platte River

38.97 MI FROM I25, Adams, CO

Built 2003 Load: 20.1 t ADT: 18,870

E-470 SB

Good

Over: South Platte River

38.97 MI FROM I25, Adams, CO

Built 2003 Load: 20.1 t ADT: 19,215

Tipple Ave.

Good

Over: Lightner Creek

0.1 Mi N of US160, La Plata, CO

Built 2020 Load: 20.1 t ADT: 604

County Road 27

Good

Over: Buckhorn Creek

4.0 Mi NW of Co Rd 38E, Larimer, CO

Built 2015 Load: 20.1 t ADT: 682

County Road 55

Good

Over: S. PLATTE RIVER OVERFLOW

1.2 Mi S of US Hwy 138, Logan, CO

Built 2013 Load: 20.1 t ADT: 345

SH 82 EBND ML

Good

Over: DRAW

NEAR ASPEN, Pitkin, CO

Built 2003 Load: 20.1 t ADT: 11,000

I 70 ML EBND

Good

Over: COLORADO RIVER OVFLW

14.1 MI E OF JCT SH 65, Mesa, CO

Built 1980 Load: 20.3 t ADT: 9,000

SH 82 ML-S/E Bound

Good

Over: DRAW

4.5 mi SE of Basalt, Pitkin, CO

Built 2004 Load: 20.3 t ADT: 22,000

WATERTON ROAD

Good

Over: LOCAL DRAINAGE

2.1 MI W OF US 85, Douglas, CO

Built 2020 Load: 20.4 t ADT: 476

Morrow Dam Road

Good

Over: Cimmaron Creek

Cimmaron, Colorado, Montrose, CO

Built 1970 Load: 20.4 t ADT: 100

NFSR 959.1

Good

Over: TROUT CREEK

1 MI. N. OF SHERIFF RESV, Rio Blanco, CO

Built 1960 Load: 20.4 t ADT: 72

US 34 ML

Good

Over: BIG THOMPSON RIVER

1 MI W OF LOVELAND, Larimer, CO

Built 1992 Load: 20.5 t ADT: 8,300

US 36 ML

Good

Over: DEER TRAIL CREEK

11.9 MI E OF JCT I 70, Adams, CO

Built 1975 Load: 20.6 t ADT: 790

SH 112 ML

Good

Over: RIO GRANDE RIVER

NORTH SIDE OF DEL NORTE, Rio Grande, CO

Built 1980 Load: 20.6 t ADT: 2,000

CO RD 1 MI LANE

Good

Over: SAN LUIS VALLEY CANAL

.1 MI E OF CR 102, Alamosa, CO

Built 1993 Load: 20.7 t ADT: 47

FDR 591

Good

Over: COAL CREEK

9.1 MI ON FDR 591, San Juan, CO

Built 1937 Load: 20.9 t ADT: 37

I 76 ML EBND

Good

Over: CLEAR CREEK

1.9 MI E OF JCT 121, Adams, CO

Built 1985 Load: 21.0 t ADT: 39,500

S. Pratt Parkway

Good

Over: St Vrain Creek

250 Ft S of Boston Ave, Boulder, CO

Built 2019 Load: 21.1 t ADT: 12,909

WALL STREET

Good

Over: WILLOW CREEK

IN TOWN OF CREEDE, Mineral, CO

Built 1988 Load: 21.1 t ADT: 285

ADAMS ST

Good

Over: EAST HARVARD GULCH

ADAMS AND VASSAR AVE, Denver, CO

Built 1967 Load: 21.2 t ADT: 364

COUNTY ROAD 23

Good

Over: EAST BRANCH SPRING CREEK

1.5 MILES NORTH OF ROAD N, Kit Carson, CO

Built 1970 Load: 21.3 t ADT: 24

Welch Street

Good

Over: Spring Creek

0.2 Mi N of Stuart St, Larimer, CO

Built 1999 Load: 21.3 t ADT: 398

COUNTY ROAD 25

Good

Over: HOLBROOK CANAL

.2 MI N OF SH 266, Otero, CO

Built 1993 Load: 21.3 t ADT: 236

RAMP TO US 85 NBND

Good

Over: RAMP TO US 85 NBND[NE] R

2.09 MI N OF JCT US 285, Denver, CO

Built 1986 Load: 21.4 t ADT: 38,000

Showing 5,801-5,850 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.