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

RAMP TO I 25 ML

Good

Over: BNSF RR R

I 25/US 6 INTCHNG IN DENV, Denver, CO

Built 1988 Load: 30.2 t ADT: 215,000

9TH STREET

Good

Over: ANIMAS RIVER

250' W OF SH 550, La Plata, CO

Built 1979 Load: 30.2 t ADT: 4,312

US 94 ML

Good

Over: DRAW

SH 94, Lincoln, CO

Built 1993 Load: 30.2 t ADT: 440

US 287 ML

Good

Over: BIG SANDY CREEK

1.8 MI SE OF KIT CARSON, Cheyenne, CO

Built 1971 Load: 30.3 t ADT: 3,800

COUNTY ROAD 55

Good

Over: SMOKY HILL RIVER

0.5 MILES NORTH OF ROAD G, Kit Carson, CO

Built 1985 Load: 30.3 t ADT: 66

County Road 23

Good

Over: Handy Ditch

0.9 Mi N of Co Rd 12, Larimer, CO

Built 1989 Load: 30.3 t ADT: 3,024

COUNTY ROAD 45.5

Good

Over: NO NAME DITCH

1.6 MILES S OF DEBEQUE, Mesa, CO

Built 2008 Load: 30.3 t ADT: 872

US 50 ML

Good

Over: DRAW

7.8 MI EAST OF LA JUNTA, Otero, CO

Built 1961 Load: 30.3 t ADT: 3,400

SH 52 ML

Good

Over: BEEBE CANAL

1.2 MI W OF JCT I 76, Weld, CO

Built 1970 Load: 30.3 t ADT: 9,100

MARK DABLING BLVD

Good

Over: SOUTH DOUGLAS CREEK

0.5 MI N OF FILLMORE, El Paso, CO

Built 1984 Load: 30.4 t ADT: 2,007

US 6 ML

Good

Over: MAYHEM GULCH

1.8 MI E OF JCT SH 119, Jefferson, CO

Built 1950 Load: 30.4 t ADT: 7,500

County Road 24

Good

Over: Riverside Canal

1.0 Mi N of Co Rd W, Morgan, CO

Built 1987 Load: 30.4 t ADT: 476

County Road 74

Good

Over: Elkhead Creek

2 Mi E of County Rd 76, Routt, CO

Built 1997 Load: 30.4 t ADT: 5

COUNTY ROAD 46

Good

Over: SAGUACHE CREEK

.6 MI S OF CR 2, Saguache, CO

Built 1990 Load: 30.4 t ADT: 58

SH 82 ML

Good

Over: ROARING FORK RIVER

NEAR BASALT, Eagle, CO

Built 1987 Load: 30.5 t ADT: 21,000

Rawhide Flats Road

Good

Over: Rawhide Creek

Just N of CR 15 and CR 84, Larimer, CO

Built 2008 Load: 30.5 t ADT: 233

Rawhide Flats Road

Good

Over: Wire Draw

.8 Mi N of CR15 and CR84, Larimer, CO

Built 2008 Load: 30.5 t ADT: 204

Morrow Dam Road

Good

Over: Cimarron River

Approx .1 mi E Cimarron, Montrose, CO

Built 1970 Load: 30.5 t ADT: 150

ACOMA AVE.

Good

Over: FT. MORGAN CANAL

0.3 MI E of S WEST ST, Morgan, CO

Built 2016 Load: 30.5 t ADT: 1,235

US 550 ML

Good

Over: MINERAL CREEK

SILVERTON, San Juan, CO

Built 2011 Load: 30.5 t ADT: 1,900

US 36 ML

Good

Over: DRAW

6 MI E OF JCT I 70, Arapahoe, CO

Built 1961 Load: 30.6 t ADT: 1,100

County Road Y

Good

Over: Riverside Canal

0.7 Mi W of Co Rd 1, Morgan, CO

Built 2002 Load: 30.6 t ADT: 76

MESA AVENUE

Good

Over: BESSEMER DITCH

IN PUEBLO, Pueblo, CO

Built 1903 Load: 30.6 t ADT: 992

I 76 ML

Good

Over: DRAW

18.6 MI NE OF JCT SH 52, Weld, CO

Built 1958 Load: 30.6 t ADT: 14,000

US 36 ML

Good

Over: DRAW

1.81 MI E OF JCT I 70, Adams, CO

Built 1990 Load: 30.7 t ADT: 1,500

I 225 ML

Good

Over: TOLLGATE CREEK

IN AURORA, Arapahoe, CO

Built 1965 Load: 30.7 t ADT: 140,000

IRR# COUNTY RD 213

Good

Over: LA POSTA CANYON

5.9 MI NW OF SH 550, La Plata, CO

Built 1997 Load: 30.7 t ADT: 1,225

Rocky Mtn. Avenue

Good

Over: Farmers Independent Ditc

220 Ft. N of U.S. Hwy 34, Larimer, CO

Built 1994 Load: 30.7 t ADT: 15,405

YOSEMITE STREET NB

Good

Over: TODD CREEK

0.6 MILE S OF 160TH AVE, Adams, CO

Built 1998 Load: 30.8 t ADT: 835

112TH AVENUE

Good

Over: E FK LITTLE MUDDY CREEK

0.1 M E OF DETER WINTERS, Adams, CO

Built 2002 Load: 30.8 t ADT: 5

US 6 ML

Good

Over: CLEAR CREEK

1.5 MI E OF JCT I70, Clear Creek, CO

Built 1984 Load: 30.8 t ADT: 5,600

MILLER RANCH ROAD

Good

Over: EAGLE RIVER

0.1 MI N OF U.S 6, Eagle, CO

Built 2004 Load: 30.8 t ADT: 3,887

VENETUCCI BLVD

Good

Over: FISHERS CANYON CREEK

N. OF ACADEMY, El Paso, CO

Built 2019 Load: 30.8 t ADT: 2,573

SH 133 ML

Good

Over: N FK GUNNISON RIVER

1.5 MI NE OF SOMERSET, Gunnison, CO

Built 1982 Load: 30.8 t ADT: 1,200

SH 12 ML

Good

Over: CUCHARAS RIVER

SW EDGE OF LA VETA, Huerfano, CO

Built 1985 Load: 30.8 t ADT: 1,600

COUNTY ROAD A

Good

Over: SANTANTA CANAL

JUST W OF CR 41.2, Kiowa, CO

Built 1991 Load: 30.8 t ADT: 20

I 70 ML EBND

Good

Over: COUNTY ROAD 59

11.5 MI. E OF JCT SH. 385, Kit Carson, CO

Built 1969 Load: 30.8 t ADT: 4,950

COUNTY ROAD 6

Good

Over: BUFFALO CREEK

1.8 MILES SOUTH OF ROAD D, Kit Carson, CO

Built 1992 Load: 30.8 t ADT: 35

COUNTY ROAD 7

Good

Over: MONTROSE AND DELTA CANAL

JUST W OF SH 550, Montrose, CO

Built 1994 Load: 30.8 t ADT: 115

US 50 ML

Good

Over: DRAW

1.1 MI E OF JCT SH 231, Pueblo, CO

Built 1976 Load: 30.8 t ADT: 8,600

County Road 35

Good

Over: Evans Ditch No. 2

.6 Mi N of CR 38, Weld, CO

Built 2010 Load: 30.8 t ADT: 352

COUNTY RD 173

Good

Over: BRANCH W. BIJOU CREEK

.2 MI SOUTH OF US36, Arapahoe, CO

Built 1988 Load: 30.9 t ADT: 237

Airport Road

Good

Over: St. Vrain River

600 Ft. S of 9th Ave., Boulder, CO

Built 2006 Load: 30.9 t ADT: 13,131

SH 470 ML EBND

Good

Over: BIG DRY CREEK

1.96 MI E OF JCT SH 177, Douglas, CO

Built 1984 Load: 30.9 t ADT: 49,000

SH 470 ML WBND

Good

Over: BIG DRY CREEK

3.2 M W OF JCT I25, Douglas, CO

Built 1984 Load: 30.9 t ADT: 49,000

SYLVAN LAKE RD

Good

Over: BRUSH CREEK

JUST SOUTH OF US6, Eagle, CO

Built 2001 Load: 30.9 t ADT: 6,966

County Road 6

Good

Over: Lupton Bottom Ditch

0.8 Mi E of Co Rd 23, Weld, CO

Built 1989 Load: 30.9 t ADT: 3,861

County Road 54

Good

Over: Rock Creek

0.20 Mi E of Co Rd D, Yuma, CO

Built 1992 Load: 30.9 t ADT: 372

RAMP TO I 25 SBND

Good

Over: CLEAR CREEK R

.2 MI N I76; .1 MI W I25, Adams, CO

Built 1992 Load: 31.0 t ADT: 121,000

PEORIA STREET

Good

Over: UPPR, SMITH RD, 37TH AVE

0.2 MI S OF E 39TH AVE, Denver, CO

Built 2014 Load: 31.0 t ADT: 32,908

Showing 6,301-6,350 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.