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 31

Good

Over: RED MOUNTAIN CREEK

0.7 MI E US 550 at MP 83, Ouray, CO

Built 1992 Load: 48.8 t ADT: 26

120TH AVENUE

Good

Over: LOCAL DRAINAGE

0.8 MI EAST OF PICADILLY, Adams, CO

Built 1995 Load: 48.9 t ADT: 3,545

MIDLAND AVENUE

Good

Over: ROARING FORK RIVER

.10 MI S OF TWO RIVERS RD, Eagle, CO

Built 1998 Load: 49.0 t ADT: 2,927

HAYSTACK DRIVE

Good

Over: MAYERS GULCH

2 MI E OF EAGLE RANCH RD, Eagle, CO

Built 2014 Load: 49.0 t ADT: 56

Redwood Street

Good

Over: Lake Canal

At Cajetan Street, Larimer, CO

Built 2004 Load: 49.0 t ADT: 1,585

PINE CREST DR

Good

Over: SKI RUN

JUST E OF SPRUCE RIDGE LN, Pitkin, CO

Built 1998 Load: 49.0 t ADT: 359

County Road 9

Good

Over: Highline Canal

0.1 Mi. N. of Co. Rd. 30, Sedgwick, CO

Built 1999 Load: 49.0 t ADT: 14

SH 207 ML

Good

Over: CATLIN CANAL

IN MANZANOLA, Otero, CO

Built 1963 Load: 49.1 t ADT: 1,200

COUNTY ROAD 501

Good

Over: LOS PINOS RIVER

7.2 MI NNW OF BAYFIELD, La Plata, CO

Built 1945 Load: 49.2 t ADT: 2,112

US 85 ML

Good

Over: SPRING CREEK

1.1 MI N OF PIERCE, Weld, CO

Built 2005 Load: 49.2 t ADT: 5,100

County Road 19

Good

Over: Sullivan Ditch

0.5 Mi N of Co Rd 22, Weld, CO

Built 1993 Load: 49.2 t ADT: 4,259

WESTCLIFF PKWY

Good

Over: BIG DRY CREEK

.2 MI SE OF CHURCH RANCH, Jefferson, CO

Built 1996 Load: 49.3 t ADT: 4,806

COUNTY ROAD N

Good

Over: ALKALI CANYON

1.5 MI W OF SH 491, Montezuma, CO

Built 2023 Load: 49.3 t ADT: 385

County Road 27

Good

Over: New Cache La Poudre Cana

0.5 MI S of St Hwy 392, Weld, CO

Built 2009 Load: 49.5 t ADT: 136

SH 265 ML

Good

Over: SAND CREEK

COMMERCE CITY, Adams, CO

Built 1999 Load: 49.6 t ADT: 6,500

COUNTY ROAD 49

Good

Over: N. FORK CIMARRON RIVER

1.2 MI N OF CR T, Baca, CO

Built 1999 Load: 49.6 t ADT: 56

Access Road

Good

Over: Big Thompson River

30 ft S of US Hwy 34, Larimer, CO

Built 2019 Load: 49.6 t ADT: 5

Moodie Street

Good

Over: Big Thompson River

25 Ft S of US Hwy 34, Larimer, CO

Built 2019 Load: 49.6 t ADT: 6

COUNTY ROAD 24

Good

Over: GRAND VALLEY CANAL

AT INTERSECTION W/ RD I, Mesa, CO

Built 2019 Load: 49.6 t ADT: 1,964

Pace Street

Good

Over: Spring Gulch

.15 Mi. N of Wyndemere, Boulder, CO

Built 2000 Load: 49.7 t ADT: 7,639

ALLEY

Good

Over: WEIR GULCH

ALLEY E OF PERRY ST, Denver, CO

Built 1976 Load: 49.7 t ADT: 26

I 25 ML SBND

Good

Over: PINE CREEK

1.4 MI N OF JCT I-25 BUS, El Paso, CO

Built 2002 Load: 49.7 t ADT: 58,000

COUNTY RD 79.0

Good

Over: LEITENSDORFER ARROYO

1.1 MI N OF CR 75.1, Las Animas, CO

Built 1990 Load: 49.8 t ADT: 43

SH 52 ML

Good

Over: ANTELOPE CREEK

21.71 MI N OF JCT SH 79, Morgan, CO

Built 1977 Load: 49.8 t ADT: 410

County Road 87

Good

Over: Bijou Canal

0.3 MI S of US HWY 34, Weld, CO

Built 2017 Load: 49.8 t ADT: 366

20TH AVENUE

Good

Over: LENA GULCH

INLET MAPLE GROVE RESERVR, Jefferson, CO

Built 1994 Load: 49.9 t ADT: 7,150

COUNTY ROAD 15B

Good

Over: CASTLE CREEK

0.2 MI SW OF COUNTY RD 15, Pitkin, CO

Built 1997 Load: 49.9 t ADT: 480

PERRY PARK ROAD

Good

Over: EAST PLUM CREEK

0.75 MILE N OF NOE RD, Douglas, CO

Built 2008 Load: 50.0 t ADT: 2,011

COUNTY ROAD 5600

Good

Over: DRY CREEK

4.3 MI SW OF OLATHE, Montrose, CO

Built 1999 Load: 50.1 t ADT: 127

OIL WELL ROAD

Good

Over: N. FORK HORSE CREEK

0.9 MI N OF FUNK ROAD, El Paso, CO

Built 2017 Load: 50.2 t ADT: 20

US 24 ML

Good

Over: DRAW

8.0 MI NE OF JCT SH 94, El Paso, CO

Built 1999 Load: 50.2 t ADT: 16,000

COUNTY ROAD 15B

Good

Over: CONUNDRUM CREEK

0.5 MI SW OF COUNTY RD 15, Pitkin, CO

Built 1997 Load: 50.2 t ADT: 97

Hughes Drive

Good

Over: Unnamed Drainage

0.1 Mi W of Roberts St., Weld, CO

Built 2021 Load: 50.2 t ADT: 80

Hygiene Rd (Cr 10)

Good

Over: Boulder Feeder Ditch

0.7 Mi E of US Hwy 36, Boulder, CO

Built 1987 Load: 50.3 t ADT: 692

COUNTY ROAD 74

Good

Over: UPPER BEAR CREEK

.5MI W OF EVRGRN LAKE, Jefferson, CO

Built 2003 Load: 50.3 t ADT: 1,624

IRR# CO RD 391

Good

Over: NAVAJO RIVER

3.5 MI SW OF CHROMO, Archuleta, CO

Built 2001 Load: 50.4 t ADT: 37

HOLLY ST

Good

Over: CHERRY CREEK

S HOLLY AT CHERRY CK DR, Denver, CO

Built 2007 Load: 50.4 t ADT: 19,122

PINE DRIVE

Good

Over: SULPHUR GULCH

0.1 MI S MAIN STREET, Douglas, CO

Built 2003 Load: 50.4 t ADT: 6,522

IRR# COUNTY RD 334

Good

Over: ALLISON DITCH

.5 MI E OF CR 336, La Plata, CO

Built 1997 Load: 50.4 t ADT: 86

COUNTY ROAD 56V

Good

Over: LEOPARD CREEK

.1 MI E OF SH 62, San Miguel, CO

Built 1993 Load: 50.4 t ADT: 138

E-470

Good

Over: Murphy Creek

17.78 MI from I-25, Arapahoe, CO

Built 1997 Load: 50.5 t ADT: 40,388

Ski Idlewild Road

Good

Over: Fraser River

0.1 Mi E of Sawyer Cir., Grand, CO

Built 2020 Load: 50.5 t ADT: 257

US 285 ML NBND

Good

Over: ELK CREEK ROAD

SHAFFERS CROSSING, Jefferson, CO

Built 2010 Load: 50.5 t ADT: 9,500

County Road 70

Good

Over: North Poudre Ditch

0.6 Mi E of Co Rd 17, Larimer, CO

Built 2019 Load: 50.5 t ADT: 5,176

COUNTY ROAD 34

Good

Over: GOVT. HIGHLINE CANAL

.9 MI N OF RD F, Mesa, CO

Built 2022 Load: 50.5 t ADT: 510

CR R (SH 330E)

Good

Over: BUZZARD CREEK

2.6 MI E of RD 64.60, Mesa, CO

Built 2016 Load: 50.5 t ADT: 82

County Road 3

Good

Over: Jackson Lake Inlet Canal

1.0 Mi N of Co Rd Y.5, Morgan, CO

Built 1982 Load: 50.7 t ADT: 282

County Road 38E

Good

Over: Charles Hansen FD Canal

0.1 MI S COUNTY RD 25E, Larimer, CO

Built 2007 Load: 50.9 t ADT: 1,744

County Road 27

Good

Over: Larimer and Weld Canal

.3 Mi N of Co Rd 76, Weld, CO

Built 2016 Load: 50.9 t ADT: 285

Centre Street

Good

Over: New Mercer Canal

0.1 M E of Worthington St, Larimer, CO

Built 1989 Load: 51.0 t ADT: 5,256

Showing 8,051-8,100 of 8,965 bridges

Related

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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.