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

SH 119 ML SBND

Good

Over: LEFT HAND CREEK

3.6 MI N OF JCT SH 52, Boulder, CO

Built 1975 Load: 37.5 t ADT: 14,000

COUNTY ROAD 9

Good

Over: ALAMOSA RIVER

0.2 MI N OF SH 15, Conejos, CO

Built 1998 Load: 37.5 t ADT: 75

COUNTY ROAD P.00/

Good

Over: FIRE MOUNTAIN CANAL

1.1 MI NW OF SH 133, Delta, CO

Built 1997 Load: 37.5 t ADT: 97

WB COTTONWOOD DR

Good

Over: CHERRY CREEK

0.5 M WEST OF PARKER RD, Douglas, CO

Built 1988 Load: 37.5 t ADT: 12,733

I 25 ML NBND

Good

Over: ROCKRIMMON BLVD.

In Colorado Springs, El Paso, CO

Built 2008 Load: 37.5 t ADT: 57,000

US 34 ML

Good

Over: EMPIRE CANAL

15.3 MI E OF JCT SH 37, Weld, CO

Built 1983 Load: 37.5 t ADT: 6,900

US 36 ML

Good

Over: COMANCHE CREEK

0.4 MI E OF STRASBURG, Arapahoe, CO

Built 2012 Load: 37.6 t ADT: 3,400

Lowell Blvd NB

Good

Over: Lowell Channel

0.15 Mi S of SH7, Broomfield, CO

Built 2005 Load: 37.6 t ADT: 4,296

COUNTY ROAD 13

Good

Over: ALAMOSA RIVER

1.0 MI N OF SH 15, Conejos, CO

Built 1989 Load: 37.6 t ADT: 89

RIVERSIDE DRIVE

Good

Over: FRYING PAN RIVER

RIVERSIDE/COTTONWD INTER, Eagle, CO

Built 1990 Load: 37.6 t ADT: 1,226

BRIDGE RD

Good

Over: GORE CREEK

0.1 MI S OF BIGHORN RD, Eagle, CO

Built 2019 Load: 37.6 t ADT: 192

MILITARY RES BNDRY

Good

Over: Drainage Ditch

2 mi. NE of Gate 19, El Paso, CO

Built 2011 Load: 37.6 t ADT: 50

NB I25 ML

Good

Over: NB SH 21 RAMP

SH21 AND I25 INT, El Paso, CO

Built 2021 Load: 37.6 t ADT: 66,000

US 24 RAMP/UNION

Good

Over: SPRING CREEK R

OVER SPRING CREEK, El Paso, CO

Built 1995 Load: 37.6 t ADT: 830

DOUGLAS AVENUE

Good

Over: FORKED GULCH

Just E of 2nd ST, Fremont, CO

Built 1987 Load: 37.6 t ADT: 251

CITY STANLEY AVE.

Good

Over: FORKED GULCH

0.1 Mi S of Douglas Ave, Fremont, CO

Built 1987 Load: 37.6 t ADT: 49

NEW YORK AVE

Good

Over: FORKED GULCH

Just W of 2nd ST, Fremont, CO

Built 1987 Load: 37.6 t ADT: 300

ROAD

Good

Over: MICHIGAN RIVER

NO DATA ENTERED, Jackson, CO

Built 2023 Load: 37.6 t ADT: 50

COUNTY RD 53.7

Good

Over: ROAD CANYON CREEK

JUST S OF CR 40.2, Las Animas, CO

Built 2005 Load: 37.6 t ADT: 3

I 70 WBND

Good

Over: FOREST SERVICE ROAD

2.6 MI W OF EISENHWR TUNL, Summit, CO

Built 2021 Load: 37.6 t ADT: 36,000

County Road 18

Good

Over: South Platte River

0.7 Mi E of Co Rd 25, Weld, CO

Built 1994 Load: 37.6 t ADT: 3,971

SABLE BLVD

Good

Over: SABLE DITCH

JUST S OF 23RD AVE, Adams, CO

Built 1992 Load: 37.7 t ADT: 9,528

US 287 ML

Good

Over: CAT CREEK

0.7 M N OF JCT US 160, Baca, CO

Built 1985 Load: 37.7 t ADT: 6,000

S UPHAM ST

Good

Over: SANDERSON GULCH

0.1 MI W OF S UPHAM CT, Jefferson, CO

Built 2017 Load: 37.7 t ADT: 893

COUNTY RD 309A

Good

Over: SALT CREEK

JUST S OF CR 307, La Plata, CO

Built 1995 Load: 37.7 t ADT: 405

County Road 23

Good

Over: Dry Creek

0.6 Mi N of Co Rd 6, Larimer, CO

Built 1988 Load: 37.7 t ADT: 2,798

C.R 49/ RAINBOW RD

Good

Over: TROUT CREEK

0.1 MI E OF SH 67, Douglas, CO

Built 1992 Load: 37.8 t ADT: 155

CO RD 864

Good

Over: VAN BOXEL CREEK

11.4 MI NE OF OWL CR PASS, Gunnison, CO

Built 1998 Load: 37.8 t ADT: 12

7th Street(CR 20D)

Good

Over: Greeley Loveland Canal

0.1 M W. Mad. Ave. -CR 13, Larimer, CO

Built 1986 Load: 37.8 t ADT: 2,645

County Road AA

Good

Over: Dead Horse Draw

0.5 Mi E of Co Rd 27, Morgan, CO

Built 1992 Load: 37.8 t ADT: 22

County Road 33

Good

Over: Lone Tree Creek

0.95 Mi N of Co Rd 100, Weld, CO

Built 1984 Load: 37.8 t ADT: 162

ARAPAHOE ROAD

Good

Over: BIG DRY CREEK

0.1 MILE E OF UNIVERSITY, Arapahoe, CO

Built 2023 Load: 37.9 t ADT: 24,212

I 25 ML NBND

Good

Over: Crooked Canyon Creek

5.0 MI NW OF EL PASO-PUEB, El Paso, CO

Built 2012 Load: 37.9 t ADT: 19,000

County Road D

Good

Over: Towaoc Canal

6.4 mi SW of Cortez, La Plata, CO

Built 1990 Load: 37.9 t

BAYFIELD PARKWAY

Good

Over: LOS PINOS RIVER OVERFLOW

0.5 W Mill Street, La Plata, CO

Built 2017 Load: 37.9 t ADT: 3,060

County Road 40

Good

Over: Cedar Creek

0.3 Mi E of US138, Logan, CO

Built 2013 Load: 37.9 t ADT: 133

25.5 ROAD

Good

Over: GRAND VALLEY CANAL

.6 MI N OF PATTERSON ROAD, Mesa, CO

Built 1999 Load: 37.9 t ADT: 2,808

WILLOW BRIDGE RD

Good

Over: GORE CREEK

0.1 MI N OF GORE CREEK DR, Eagle, CO

Built 1992 Load: 38.0 t ADT: 127

FUNK ROAD

Good

Over: HORSE CREEK

0.8 MILE E OF OIL WELL RD, El Paso, CO

Built 1992 Load: 38.0 t ADT: 84

County Road 56

Good

Over: Box Elder Creek

1.0 Mi. East of I-25, Larimer, CO

Built 1997 Load: 38.0 t ADT: 221

BENCHMARK DRIVE

Good

Over: PEDESTRIAN / SKIER

CITY STREET - BENCHMARK, San Miguel, CO

Built 1990 Load: 38.0 t ADT: 150

4th St (Cr 60.5)

Good

Over: Sheep Draw

0.5 Mi E of 71st Ave, Weld, CO

Built 1992 Load: 38.0 t ADT: 8,963

OLD RANCH ROAD

Good

Over: KETTLE CREEK

0.1 MI E OF OTERO AVENUE, El Paso, CO

Built 1988 Load: 38.1 t ADT: 8,618

US 6 ML

Good

Over: WARSON CREEK

1 MI E OF PALISADE, Mesa, CO

Built 1951 Load: 38.1 t ADT: 1,200

SH 392 ML

Good

Over: CROW CREEK

0.8 Mi E of Co Rd 75, Weld, CO

Built 1991 Load: 38.1 t ADT: 2,700

STEPHEN D HOGAN PK

Good

Over: SAND CREEK

0.2 MI E OF SH30, Arapahoe, CO

Built 2019 Load: 38.2 t ADT: 7,470

CALEY AVE

Good

Over: LITTLES CREEK

0.15 MI E OF WINDERMERE, Arapahoe, CO

Built 2021 Load: 38.2 t ADT: 734

County Road 81

Good

Over: Lefthand Creek

250 ft N of Lee Hill Dr, Boulder, CO

Built 2019 Load: 38.2 t ADT: 735

NFSR 250

Good

Over: ALUM CREEK

29.6 MI ON FSR 250, Conejos, CO

Built 2020 Load: 38.2 t ADT: 47

County Rd 650

Good

Over: Escalante Creek

2 MI SW of SH 50, Delta, CO

Built 2017 Load: 38.2 t ADT: 88

Showing 7,351-7,400 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.