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

FDR 700

Good

Over: SANDSTONE CR

NO DATA ENTERED, Eagle, CO

Built 2021 Load: 33.4 t ADT: 50

BAPTIST ROAD

Good

Over: MONUMENT CREEK

0.5 MI W OF I-25, El Paso, CO

Built 2015 Load: 33.4 t ADT: 4,184

I 70 ML WBND

Good

Over: HILLSIDE

1.8 MI E OF GLENWD SPGS, Garfield, CO

Built 1986 Load: 33.4 t ADT: 8,500

I 25 ML NBND

Good

Over: APACHE CREEK

15.4 M N OF WALSENBURG, Huerfano, CO

Built 1985 Load: 33.4 t ADT: 7,000

COUNTY ROAD 14

Good

Over: REED WASH

0.7 MI N of US50, Mesa, CO

Built 2016 Load: 33.4 t ADT: 693

County Road Y

Good

Over: Riverside Canal

1.2 Mi E of SH52, Morgan, CO

Built 2008 Load: 33.4 t ADT: 233

NFSR 44.1

Good

Over: N.FORK ELK RIVER

~ 2 MI SSW OF DIAMOND PK, Routt, CO

Built 2000 Load: 33.4 t ADT: 19

County Road 67

Good

Over: S Fk Williams Fk River

7.1 Mi S of Co Rd 29, Routt, CO

Built 1994 Load: 33.4 t ADT: 22

SH 67 ML

Good

Over: AREQUA GULCH

TELLER COUNTY, Teller, CO

Built 2001 Load: 33.4 t ADT: 900

County Road 5

Good

Over: Trib.S.Fork Republican R

0.45 Mi. East of County R, Yuma, CO

Built 1998 Load: 33.4 t ADT: 31

S GUN CLUB RD

Good

Over: TOLL GATE CREEK

0.2 MI S of QUINCY AVE, Arapahoe, CO

Built 2021 Load: 33.5 t ADT: 21,850

County Road 27

Good

Over: Pawnee Ditch

0.7 Mi North of Co. Rd 12, Logan, CO

Built 2009 Load: 33.5 t ADT: 34

County Road 30

Good

Over: Beaver Creek

1.3 Mi N of Co. Rd. A, Morgan, CO

Built 2005 Load: 33.5 t ADT: 2

SH 66 ML

Good

Over: ST VRAIN River

3.8 MI E OF JCT I 25, Weld, CO

Built 2013 Load: 33.5 t ADT: 12,000

I76 ML & RAMP

Good

Over: SECOND CREEK

BTWN JCT SH2 AND 120 AVE, Adams, CO

Built 2003 Load: 33.6 t ADT: 32,000

N. 95th St (CR19)

Good

Over: Left Hand Creek

.4 Mi S of SH 119, Boulder, CO

Built 2009 Load: 33.6 t ADT: 11,067

FDR 686

Good

Over: STONER MESA

.20 MI ON FDR 686, Dolores, CO

Built 1969 Load: 33.6 t ADT: 18

SH 12 ML

Good

Over: S FK PURGATOIRE RIVER

AT WESTON, Las Animas, CO

Built 1936 Load: 33.6 t ADT: 520

Americana Rd

Good

Over: Ditch

40 ft W of N.Commercia, Las Animas, CO

Built 1950 Load: 33.6 t ADT: 961

COUNTY ROAD 4D

Good

Over: VEGA CREEK

1.0 MI E OF COLO 71, Lincoln, CO

Built 1994 Load: 33.6 t ADT: 56

SH 141 ML

Good

Over: GRAND VALLEY CANAL

IN CLIFTON, Mesa, CO

Built 1984 Load: 33.6 t ADT: 15,000

COUNTY ROAD 5825

Good

Over: IRONSTONE CANAL

1.2 MI W OF OLATHE, Montrose, CO

Built 1996 Load: 33.6 t ADT: 591

E-470 NB

Good

Over: Burlington Ditch

34.79 MI FROM I25, Adams, CO

Built 2002 Load: 33.7 t ADT: 21,602

E MALL ENTRANCE

Good

Over: LOCAL DRAINAGE

.2 MI E SHERIDAN S 120TH, Adams, CO

Built 1997 Load: 33.7 t ADT: 1,245

ALAMO AVENUE

Good

Over: RAILROAD AND LRT

JUST E OF RIO GRANDE ST, Arapahoe, CO

Built 1985 Load: 33.7 t ADT: 14,096

N. 95th St (CR10)

Good

Over: Highland Ditch

0.5 Mi N of Woodland, Boulder, CO

Built 1989 Load: 33.7 t ADT: 1,968

US 36 ML

Good

Over: Ped Underpath / Creek

28TH ST/WINDING TRAIL DR., Boulder, CO

Built 2015 Load: 33.7 t ADT: 16,000

CO RD10B/Dagget Ln

Good

Over: Gypsym Creek

100 FT W OF DAGGETT LN, Eagle, CO

Built 2023 Load: 33.7 t ADT: 100

CHAPEL HILLS DRIVE

Good

Over: PINE CREEK

.3 MI N OF BRIARGATE PWY, El Paso, CO

Built 2002 Load: 33.7 t ADT: 6,253

County Road 8

Good

Over: Fraser River

0.2 Mi East of US Hwy 40, Grand, CO

Built 2019 Load: 33.7 t ADT: 2,341

TAYLOR PARK ROAD

Good

Over: TEXAS CREEK

26.8 MI. N.E. ALMONT, CO., Gunnison, CO

Built 1993 Load: 33.7 t ADT: 482

MAIN STREET

Good

Over: CARBONATE CREEK

Just east of 1st street, Gunnison, CO

Built 1987 Load: 33.7 t ADT: 436

FDR 631

Good

Over: WEMINUCHE CREEK

WEMINUCHE CREEK, Hinsdale, CO

Built 1997 Load: 33.7 t ADT: 34

I 70 ML EBND

Good

Over: CLEAR CREEK

.4 MI EAST OF JCT. SH 121, Jefferson, CO

Built 1967 Load: 33.7 t ADT: 46,000

IRR# COUNTY RD 214

Good

Over: ANIMAS RIVER

.1 MI S OF CR 213, La Plata, CO

Built 1987 Load: 33.7 t ADT: 647

US 287 ML

Good

Over: DRAW

0.9 MI N OF JCT SH 1, Larimer, CO

Built 2012 Load: 33.7 t ADT: 11,000

Mc Clelland Drive

Good

Over: Larimer County Canal #2

20 ft S. W foothill Pkwy, Larimer, CO

Built 2019 Load: 33.7 t ADT: 4,020

Prospect Road

Good

Over: New Mercer Canal

0.1 Mi E of Brentwood Dr, Larimer, CO

Built 2014 Load: 33.7 t ADT: 15,960

Rossum Drive

Good

Over: Big Barnes Ditch

0.1 Mi South of US 34, Larimer, CO

Built 2002 Load: 33.7 t ADT: 1,371

County Road 103

Good

Over: Laramie River

15. Mi N of St Hwy 14, Larimer, CO

Built 1991 Load: 33.7 t ADT: 57

Namaqua Avenue

Good

Over: Big Thompson River

0.5 Mi N of W 1st St., Larimer, CO

Built 2019 Load: 33.7 t ADT: 5,082

CR 904/CR 13

Good

Over: Little Thompson River

0.2 Mi N of Co Rd 6C, Larimer, CO

Built 1988 Load: 33.7 t ADT: 3,225

US 50 ML EBND

Good

Over: DRY CREEK

0.6 MI E OF JCT SH 45, Pueblo, CO

Built 1975 Load: 33.7 t ADT: 21,500

NORTH DILLON DRIVE

Good

Over: UNION PACIFIC RR

.2 MI N of SH 47, Pueblo, CO

Built 2000 Load: 33.7 t ADT: 21,544

County Road 67

Good

Over: S Fk Williams Fk River

6.3 Mi S of Co Rd 29, Routt, CO

Built 2019 Load: 33.7 t ADT: 23

NFSR 585

Good

Over: MINERAL CREEK

2.8 MI NW OF SILVERTON, San Juan, CO

Built 2012 Load: 33.7 t ADT: 50

FIRESTONE BLVD.

Good

Over: GODDING HOLLOW

0.1 mi W of CR 111, Weld, CO

Built 2020 Load: 33.7 t ADT: 24,922

County Road 17

Good

Over: Big Dry Creek

0.3 Mi North of Co Rd 4, Weld, CO

Built 1974 Load: 33.7 t ADT: 171

County Road 29

Good

Over: Collins Lateral Canal

0.3 Mi N of Co Rd 84, Weld, CO

Built 1990 Load: 33.7 t ADT: 1,700

Marshall Rd(Cr 51)

Good

Over: South Boulder Creek

0.5 Mi N of St Hwy 170, Boulder, CO

Built 1988 Load: 33.8 t ADT: 318

Showing 6,901-6,950 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.