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 157 NBND

Good

Over: FOUR MILE CANYON CREEK

TWO MILES N OF BOULDER CI, Boulder, CO

Built 1988 Load: 43.6 t ADT: 20,500

COUNTY ROAD 3400

Good

Over: NORTH FORK GUNNISON RVR

.7 MI S OF SH 92, Delta, CO

Built 1988 Load: 43.6 t ADT: 404

COUNTY ROAD 40

Good

Over: REPUBLICAN RIVER

2.5 MILES NORTH OF ROAD L, Kit Carson, CO

Built 1999 Load: 43.6 t ADT: 39

COUNTY ROAD 4

Good

Over: PRAIRIE CREEK

2.5 MI W OF CR S, Mesa, CO

Built 2010 Load: 43.6 t ADT: 38

IRIS AVENUE

Good

Over: WONDERLAND CREEK

0.2 MI East of 30th St, Boulder, CO

Built 2020 Load: 43.7 t ADT: 1,988

COUNTY ROAD G50

Good

Over: GUNNISON RIVER

3 MI NW OF 5TH ST, Delta, CO

Built 1991 Load: 43.7 t ADT: 2,293

EVERGREEN LAKE RD

Good

Over: BEAR CREEK

INLET TO EVERGREEN LAKE, Denver, CO

Built 2020 Load: 43.7 t ADT: 789

SBND I25 RAMP H

Good

Over: WALNUT CONNECTOR R

I25/US40 INTERCHANGE, Denver, CO

Built 2003 Load: 43.7 t ADT: 117,500

US 34 ML

Good

Over: BNSF RR

0.1 MI W. OF US 287, Larimer, CO

Built 1999 Load: 43.7 t ADT: 26,000

I 25 ML NBND

Good

Over: CROSSROADS BLVD.

2 MI NO OF JCT US 34, Larimer, CO

Built 2017 Load: 43.7 t ADT: 38,000

I 25 ML SBND

Good

Over: CROSSROADS BLVD.

2 MI NO OF JCT US 34, Larimer, CO

Built 2017 Load: 43.7 t ADT: 38,000

Boise Avenue

Good

Over: Greeley Loveland Canal

0.2 N of E. 8th Street, Larimer, CO

Built 2001 Load: 43.7 t ADT: 10,915

US 50 ML WBND

Good

Over: VANDIVER ARROYO

14.5 MI WEST OF LAS ANIMA, Otero, CO

Built 1997 Load: 43.7 t ADT: 1,700

MTN VILLAGE BLV

Good

Over: PEDESTRIAN / SKIER

CITY STREET - MTN VILLAGE, San Miguel, CO

Built 1990 Load: 43.7 t ADT: 2,195

152ND AVENUE

Good

Over: BIG DRY CREEK

BTWN WASHINGTON/YORK ST, Adams, CO

Built 2001 Load: 43.8 t ADT: 5,431

ARAPAHOE RD

Good

Over: SADDLE ROCK GOLF PATH

0.6 MI E OF LIVERPOOL ST, Arapahoe, CO

Built 1998 Load: 43.8 t ADT: 24,668

COUNTY ROAD 804

Good

Over: VOGEL CANYON

2.6 MI SW OF SH 109, Otero, CO

Built 1998 Load: 43.8 t ADT: 24

USFS ROAD 211

Good

Over: GOOSE CREEK

AT GOOSE CREEK CAMPGROUND, Jefferson, CO

Built 1962 Load: 43.9 t ADT: 31

COUNTY ROAD JJ.5

Good

Over: SMITH ARROYO

.8 MI S OF SH 50, Otero, CO

Built 2003 Load: 43.9 t ADT: 135

County Road 37

Good

Over: New Cache La Poudre Cana

0.1 Mi North of ST HWY 39, Weld, CO

Built 1986 Load: 43.9 t ADT: 691

SH 7 ML

Good

Over: SOUTH PLATTE RIVER

W. EDGE OF BRIGHTON, Adams, CO

Built 2009 Load: 44.0 t ADT: 16,000

104TH AVE

Good

Over: BIG DRY CREEK

.7 MI W OF SHERIDAN BLVD, Jefferson, CO

Built 1991 Load: 44.0 t ADT: 25,844

WABASH STREET

Good

Over: CHERRY CREEK

0.5 MI S. of ILIFF, Arapahoe, CO

Built 2010 Load: 44.1 t ADT: 7,228

SB I25 ML

Good

Over: SB SH21 RAMP

SH21 AND I25 INT, El Paso, CO

Built 2021 Load: 44.1 t ADT: 66,000

IRR# COUNTY RD 310

Good

Over: FLORIDA RIVER

.3 MI SE OF SH 550, La Plata, CO

Built 1977 Load: 44.1 t ADT: 2,119

Stage Coach

Good

Over: Little Thompson River

1 Mile N of N St Vrain Dr, Larimer, CO

Built 2019 Load: 44.1 t ADT: 331

COUNTY ROAD V.8

Good

Over: BIG SALT WASH

.1 MI E of 16 ROAD, Mesa, CO

Built 2018 Load: 44.1 t ADT: 14

SH 266 ML

Good

Over: HOLBROOK CANAL

2.6 MI NE OF ROCKY FORD, Otero, CO

Built 2013 Load: 44.1 t ADT: 380

CR 15A/MIDNIGHT M

Good

Over: CASTLE CREEK

JUST E OF CR 15, Pitkin, CO

Built 1999 Load: 44.1 t ADT: 67

S BEAVER CRK RD

Good

Over: SOUTH BOULDER CREEK

S BEAVER CK RD AT SH72, Gilpin, CO

Built 1995 Load: 44.2 t ADT: 798

CR 230/BURNT MILL

Good

Over: ST. CHARLES RIVER

JUST S OF WATER BARREL, Pueblo, CO

Built 1988 Load: 44.2 t ADT: 159

RAMP TO SH 121 ML

Good

Over: CLEAR CREEK R

I70 WB TO SH121, Jefferson, CO

Built 1980 Load: 44.3 t ADT: 92,000

I 70 SERVICE RD

Good

Over: DRAW

5.3 MI E OF JCT 36, BYERS, Arapahoe, CO

Built 2022 Load: 44.4 t ADT: 50

CHEYENNE CANYON RD

Good

Over: NORTH CHEYENNE CREEK

1.4 MI W EVANS AVENUE, El Paso, CO

Built 2022 Load: 44.4 t ADT: 1,566

County Road 126

Good

Over: Fourmile Creek

W. OF CR 117, Garfield, CO

Built 2014 Load: 44.4 t ADT: 1,368

County Road 47

Good

Over: Little Thomson River

0.1 Mi W of SH36, Larimer, CO

Built 2015 Load: 44.4 t ADT: 277

TOUR LOOP

Good

Over: First Creek

1.6 MI N OF 6TH AVE, Adams, CO

Built 2011 Load: 44.5 t ADT: 75

HOV RAMP

Good

Over: I25 ACCESS

MEDIAN I25 ML & SH 22, Adams, CO

Built 1993 Load: 44.5 t ADT: 242,000

County Road 620

Good

Over: Colorado River

0.1 Mi East of US Hwy 34, Grand, CO

Built 1989 Load: 44.5 t ADT: 224

Remington Street

Good

Over: Spring Creek

Remington St/Spring Park, Larimer, CO

Built 1997 Load: 44.5 t ADT: 1,698

5th Street

Good

Over: Yampa River

20 ft S of Yampa Street, Routt, CO

Built 1989 Load: 44.5 t ADT: 4,967

SH 52 ML

Good

Over: FULTON DITCH

1.8 MI E OF JCT US 85 BYP, Weld, CO

Built 1971 Load: 44.5 t ADT: 11,000

County Road 5

Good

Over: Little Thompson River

0.1 Mi N of Co Rd 42, Weld, CO

Built 2000 Load: 44.5 t ADT: 337

COUNTY ROAD 1700

Good

Over: UNCOMPAHGRE RIVER

.3 MI N OF CR D25 ROAD, Delta, CO

Built 2001 Load: 44.6 t ADT: 676

US 24 ML

Good

Over: UP RR

0.05 MI NE OF JCT US 285, Chaffee, CO

Built 2014 Load: 44.7 t ADT: 7,800

COUNTY ROAD 54

Good

Over: BIG TIMBER CREEK

.3 MI S OF CR AA, Cheyenne, CO

Built 2010 Load: 44.7 t ADT: 25

I70 ML EB

Good

Over: WASHINGTON ST/S PLATTE R

DENVER, Denver, CO

Built 2001 Load: 44.7 t ADT: 78,500

I 25 ML SBND

Good

Over: EAST PLUM CREEK

0.6 MI. S. CASTLE ROCK BU, Douglas, CO

Built 2010 Load: 44.7 t ADT: 41,000

KENDALL BLVD

Good

Over: LOCAL DRAINAGE

.1 MI SO OF CANYON AVE, Jefferson, CO

Built 1981 Load: 44.7 t ADT: 1,608

WESTMINSTER BLVD

Good

Over: BIG DRY CREEK

0.5 MI S OF CHURCH RANCH, Jefferson, CO

Built 2002 Load: 44.7 t ADT: 4,300

Showing 7,801-7,850 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.