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 40

Good

Over: Timnath Res. Outlet Cana

1.1 Mi E of Co Rd 5, Larimer, CO

Built 1982 Load: 26.6 t ADT: 1,572

County Road E

Good

Over: Towaoc Canal

5 mi south of Cortez CO, Montezuma, CO

Built 1990 Load: 26.6 t ADT: 100

SH 82 ML

Good

Over: COUNTY ROAD

NEAR ASPEN, Pitkin, CO

Built 1994 Load: 26.6 t ADT: 22,000

CR 25 (95th Ave.)

Good

Over: Loveland Greeley Canal

0.1 Mi N of Co Rd 52, Weld, CO

Built 1962 Load: 26.6 t ADT: 198

US 50 ML WBND

Good

Over: SAND CREEK

4.0 MI W OF CANON CITY, Fremont, CO

Built 1993 Load: 26.7 t ADT: 4,150

US 287 ML

Good

Over: CLAY CREEK

10 M S of LAMAR, Prowers, CO

Built 1976 Load: 26.7 t ADT: 3,000

Pine Street

Good

Over: Soda Creek

250 Feet NW of 9TH Street, Routt, CO

Built 2006 Load: 26.7 t ADT: 637

SH 66 ML

Good

Over: SOUTH PLATTE RIVER

.2 MI W OF 85, Weld, CO

Built 1988 Load: 26.7 t ADT: 9,100

SH 96 ML

Good

Over: DRAW

5 MI E OF CROWLEY KIOWA C, Kiowa, CO

Built 1975 Load: 26.8 t ADT: 420

SH 14 ML

Good

Over: CACHE LA POUDRE RIVER

3.1 MI EAST OF CHAMBERS L, Larimer, CO

Built 1980 Load: 26.8 t ADT: 450

RIVERSIDE PARKWAY

Good

Over: LEACH CREEK

Just E of Redlands Pkwy, Mesa, CO

Built 2008 Load: 26.8 t ADT: 4,151

COUNTY ROAD 36

Good

Over: DOLORES RIVER

JUST E OF SH 145, Montezuma, CO

Built 1992 Load: 26.8 t ADT: 33

SH 75 ML

Good

Over: UNNAMED DRAINAGE

1.4 SW OF JCT US 85, Arapahoe, CO

Built 2000 Load: 26.9 t ADT: 15,000

N 63rd St (CR39)

Good

Over: Lefthand Creek

0.4 Mi N of Niwot Rd, Boulder, CO

Built 2011 Load: 26.9 t ADT: 2,610

WB NWP Ramp

Good

Over: Rock Creek

5.70 MI FROM I-25, Broomfield, CO

Built 2002 Load: 26.9 t ADT: 2,300

7TH STREET

Good

Over: CLEAR CREEK

W. OF ARGENTINE STREET, Clear Creek, CO

Built 2004 Load: 26.9 t ADT: 350

I 70 ML EBND

Good

Over: UP RR

EAST OF DOTSERO INTERCHAN, Eagle, CO

Built 1980 Load: 26.9 t ADT: 8,500

County Road 6

Good

Over: Big Dry Creek

0.1 Mi E of Co Rd 19, Weld, CO

Built 1984 Load: 26.9 t ADT: 4,075

County Road P

Good

Over: Arikaree River

0.90 Mi N of Co Rd 11, Yuma, CO

Built 1987 Load: 26.9 t ADT: 11

SH 165 ML

Good

Over: WILLIS CREEK

1.11 MI N OF JCT SH 78, Custer, CO

Built 1945 Load: 27.0 t ADT: 280

LEV 5 SE TERM RAMP

Good

Over: 84TH AVENUE

SE CORNER TERM BLDG, Denver, CO

Built 2014 Load: 27.0 t ADT: 11,241

DEER CRK CANYON RD

Good

Over: DEER CREEK

1.4 MI E OF PHILLIPSBURG, Jefferson, CO

Built 1969 Load: 27.0 t ADT: 2,820

Rossum Drive

Good

Over: Big Thompson River

0.2 Mi South of US 34, Larimer, CO

Built 2002 Load: 27.1 t ADT: 1,371

CONVERSE ROAD

Good

Over: LOST CREEK

0.1 MI S OF 144TH AVENUE, Adams, CO

Built 1997 Load: 27.2 t ADT: 59

I 70 ML

Good

Over: COUNTY ROAD

1.1 MI E OF JCT US 40, Clear Creek, CO

Built 1965 Load: 27.2 t ADT: 37,000

FSR105

Good

Over: CONEJOS RIVER

CONEJOS RIVER SADDLE, Conejos, CO

Built 2014 Load: 27.2 t ADT: 44

CASCADE AVENUE

Good

Over: RAILROAD VAN BUREN

0.4 MI SOUTH OF FILLMORE, El Paso, CO

Built 2000 Load: 27.2 t ADT: 7,659

JANITELL ROAD

Good

Over: FOUNTAIN CREEK

0.4 MI N OF CIRCLE DR, El Paso, CO

Built 1990 Load: 27.2 t ADT: 4,575

US 50 ML EBND

Good

Over: BRUSH HOLLOW CREEK

3.4 MI E OF JCT SH 67, Fremont, CO

Built 1976 Load: 27.2 t ADT: 7,000

I 25 ML SBND

Good

Over: APACHE CREEK

15.5 MI N OF WALSENBURG, Huerfano, CO

Built 1965 Load: 27.2 t ADT: 7,000

SH 12 ML

Good

Over: PRIMERO CANYON

AT SEGUNDO, Las Animas, CO

Built 1978 Load: 27.2 t ADT: 520

County Road KK

Good

Over: Bonny Dam Spillway

7 MI E OF SR 325, Yuma, CO

Built 1951 Load: 27.2 t ADT: 5

BEECH STREET

Good

Over: RALSTON CREEK

0.3 MI SOUTH OF 72ND AVE, Jefferson, CO

Built 1978 Load: 27.3 t ADT: 1,714

US 550 ML

Good

Over: UNCOMPHAGRE RIVER

8 MI OF SH62-RIDGWAY, Ouray, CO

Built 1989 Load: 27.3 t ADT: 8,300

County Road 21

Good

Over: Larimer and Weld Canal

100 Ft N of Co Rd 76, Weld, CO

Built 2008 Load: 27.3 t ADT: 233

US 285 ML

Good

Over: PLEASANT PARK RD.

Conifer, Jefferson, CO

Built 2003 Load: 27.4 t ADT: 25,000

COUNTY RD LL56

Good

Over: KERBER CREEK

JUST N OF FIRST ST, Saguache, CO

Built 1994 Load: 27.4 t ADT: 47

COUNTY RD LL56

Good

Over: KERBER CREEK

0.5 MI S. OF BONANZA, Saguache, CO

Built 1989 Load: 27.4 t ADT: 18

COUNTY ROAD 50

Good

Over: WOLF CREEK

.6 MI W OF CR 149, Arapahoe, CO

Built 1987 Load: 27.5 t ADT: 183

FDR 535

Good

Over: BURRO CREEK

24.3 MI ON FDR 535, Dolores, CO

Built 2001 Load: 27.5 t ADT: 52

SH 21B NBND ML

Good

Over: KETTLE CREEK

NBND POWERS, El Paso, CO

Built 2005 Load: 27.5 t ADT: 37,000

US 160 ML WB RMP

Good

Over: WILSON GULCH & Ped Path

EAST of INT US 550/160, La Plata, CO

Built 2010 Load: 27.5 t ADT: 604

US287 SBND

Good

Over: GREELEY-LOVELAND CANAL

CLEVELAND AVE at 1st ST, Larimer, CO

Built 2003 Load: 27.5 t ADT: 5,500

IVY STREET

Good

Over: BIG THOMPSON RIVER

95 FT W of E Riverside Av, Larimer, CO

Built 2023 Load: 27.5 t ADT: 1,507

County Road 15

Good

Over: Bijou/San Arroyo Canals

0.5 MI S of Co Rd P, Morgan, CO

Built 2019 Load: 27.5 t ADT: 101

County Road 20.5

Good

Over: Riverside Canal

0.75 Mi N of Co Rd V, Morgan, CO

Built 2019 Load: 27.5 t ADT: 114

County Road Y.5

Good

Over: Weldon Valley Ditch

0.02 Mi E of Co Rd 4, Morgan, CO

Built 2019 Load: 27.5 t ADT: 308

SH 9 ML

Good

Over: BLUE RIVER

SH 9 OVER BLUE RIVER, Summit, CO

Built 2008 Load: 27.5 t ADT: 20,000

CENTRAL AVE

Good

Over: KIOWA CREEK

JUST WEST OF WIGGINS, Weld, CO

Built 2005 Load: 27.5 t ADT: 1,300

SH 368 ML

Good

Over: EMPIRE IRRIGATION CANAL

2.3 MI E OF JCT SH 371, Alamosa, CO

Built 1955 Load: 27.6 t ADT: 230

Showing 6,051-6,100 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.