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 49

Good

Over: Jim Creek

0.5 mi N of I-76, Weld, CO

Built 2017 Load: 42.1 t ADT: 4,577

COUNTY ROAD SS

Good

Over: KICKING BIRD CANAL

1 MI N OF SH 196, Bent, CO

Built 1999 Load: 42.2 t ADT: 25

RAMP TO I 70 WBND

Good

Over: CLEAR CREEK R

3.4 MI E OF JCT SH 103, Clear Creek, CO

Built 1995 Load: 42.3 t ADT: 23,500

CR 2050 Running Dr

Good

Over: SURFACE CREEK

500 FT NW OF SH 65, Delta, CO

Built 1989 Load: 42.3 t ADT: 234

COUNTY ROAD 53

Good

Over: CARPENTER CREEK

1.5 MI N TOWN PALMER LK, Douglas, CO

Built 2006 Load: 42.3 t ADT: 2,147

County Road 18E

Good

Over: Cottonwood Creek

0.2 Mi W of Co Rd 31, Larimer, CO

Built 1996 Load: 42.3 t ADT: 1,911

County Road 12

Good

Over: Fort Morgan Canal

0.8 Mi N of Co Rd V, Morgan, CO

Built 1999 Load: 42.3 t ADT: 229

COUNTY ROAD 501

Good

Over: DRY WASH

3.6 MI N OF SH47, Pueblo, CO

Built 1995 Load: 42.3 t ADT: 359

US 160 ML

Good

Over: DRAW

4 MI W OF PRITCHETT, Baca, CO

Built 2013 Load: 42.4 t ADT: 250

E-470 NB

Good

Over: Ramp B

20.13 MI FROM I25, Arapahoe, CO

Built 2006 Load: 42.5 t ADT: 18,591

I 25 ML

Good

Over: I 225 LRT

I-25 at I-225, Denver, CO

Built 2004 Load: 42.5 t ADT: 223,000

39TH AVENUE

Good

Over: LENA GULCH

JUST W OF KIPLING ST, Jefferson, CO

Built 2000 Load: 42.5 t ADT: 1,207

COUNTY ROAD 19Q

Good

Over: SPRING CREEK

4.3 MI S OF SH 141, San Miguel, CO

Built 1994 Load: 42.5 t ADT: 6

JORDAN ROAD

Good

Over: WINDMILL CREEK

SOUTH OF MAPLEWOOD AVENUE, Arapahoe, CO

Built 1999 Load: 42.6 t ADT: 161

COUNTY ROAD 18

Good

Over: SANGRE DE CRISTO CREEK

.6 MI W OF SH 159, Costilla, CO

Built 1992 Load: 42.6 t ADT: 37

LIBERTY BLVD

Good

Over: COTTONWOOD CREEK

.1 MI EAST OF JAMAICA ST, Douglas, CO

Built 2002 Load: 42.6 t ADT: 1,340

US 285 ML

Good

Over: NORTH ACCESS ROAD

US 285 OVER N. ACCESS RD, Jefferson, CO

Built 2002 Load: 42.6 t ADT: 26,000

US 6 ML

Good

Over: SNAKE RIVER

3.6 MI E OF JCT I 70, Summit, CO

Built 1999 Load: 42.6 t ADT: 14,000

COUNTY ROAD D25

Good

Over: DRY CREEK

.2 MI SE OF CR1600, Delta, CO

Built 2009 Load: 42.7 t ADT: 323

LITTLE RAVEN ST

Good

Over: CHERRY CREEK

0.02 MI SOUTH OF 15TH ST, Denver, CO

Built 1995 Load: 42.7 t ADT: 959

US 285 Hampden Ave

Good

Over: LRT

W of I-25 / HAMPDEN INTRS, Denver, CO

Built 2005 Load: 42.7 t ADT: 49,000

KIOWA ROAD

Good

Over: COAL CREEK

7.2 MI NW OF MONTROSE, Montrose, CO

Built 1994 Load: 42.7 t ADT: 201

CR 230/BURNT MILL

Good

Over: ST. CHARLES FLOOD DITCH

3.0 MI N OF WATER BARRE, Pueblo, CO

Built 1990 Load: 42.7 t ADT: 208

SH 114 ML

Good

Over: COCHETOPA CREEK

4.9 MI S OF JCT SH 50, Gunnison, CO

Built 1989 Load: 42.8 t ADT: 470

I70 ML WB

Good

Over: WASHINGTON ST/S PLATTE R

DENVER, Denver, CO

Built 2003 Load: 42.9 t ADT: 73,000

SB I-25 Offramp

Good

Over: LRT

I-25 at I-225, Denver, CO

Built 2005 Load: 42.9 t ADT: 110,500

COUNTY ROAD I

Good

Over: GRAND VALLEY CANAL

.1 MI E OF RD 24, Mesa, CO

Built 2001 Load: 42.9 t ADT: 1,637

MATTERHORN CIRCLE

Good

Over: GORE CREEK

0.1 MI S OF 1-70 FRONTAGE, Eagle, CO

Built 2013 Load: 43.0 t ADT: 1,441

County Road X.5

Good

Over: ROAN CREEK

1 MI N OF DEBEQUE, Mesa, CO

Built 2009 Load: 43.0 t ADT: 72

COUNTY ROAD 63L

Good

Over: SAN MIGUEL RIVER

1.5 MI S OF SH 145, San Miguel, CO

Built 1993 Load: 43.0 t ADT: 484

INVERNESS WAY E.

Good

Over: COTTONWOOD CREEK

IN INVERNESS BUSINESS PAR, Arapahoe, CO

Built 1975 Load: 43.1 t ADT: 3,110

SH 119 ML, W.Bnd

Good

Over: LEFTHAND CREEK

3.6 MI NE OF SH 52, Boulder, CO

Built 2003 Load: 43.1 t ADT: 24,000

SH 119 ML EBND

Good

Over: ST VRAIN RIVER

NEAR LONGMONT, Boulder, CO

Built 2003 Load: 43.1 t ADT: 12,000

NFSR 780.1

Good

Over: S. FORK MICHIGAN RIVER

3.7 MI S. OF S.H. 14, Jackson, CO

Built 1984 Load: 43.1 t ADT: 17

SH 14 ML

Good

Over: STOVE PRAIRIE CREEK

15.9 MI W OF JCT US 287, Larimer, CO

Built 2017 Load: 43.1 t ADT: 1,200

Railroad Avenue

Good

Over: Big Thompson River

450 S Railroad Avenue, Larimer, CO

Built 1990 Load: 43.1 t ADT: 2,613

SH 83 ML

Good

Over: WASH

1.84 M S OF JCT 88-ARAPHO, Arapahoe, CO

Built 1989 Load: 43.2 t ADT: 41,000

COUNTY ROAD UU.5

Good

Over: FT. LYON CANAL

.3 MI E OF CR 35, Bent, CO

Built 1998 Load: 43.2 t ADT: 28

CR650 (Excalante)

Good

Over: Gunnison River

2.6 MI SW OF SH 50, Delta, CO

Built 1992 Load: 43.2 t ADT: 75

CITY GRIFFIN AVE

Good

Over: FORKED GULCH

Just NE of 2nd ST, Fremont, CO

Built 1988 Load: 43.2 t ADT: 360

US 34 ML

Good

Over: BIG THOMPSON RIVER

3 MI W OF LOVELAND, Larimer, CO

Built 2005 Load: 43.2 t ADT: 6,900

COUNTY ROAD 60M

Good

Over: SAN MIGUEL RIVER

.1 MI 5 OF SH 145, San Miguel, CO

Built 1988 Load: 43.2 t ADT: 351

COUNTY ROAD M44

Good

Over: SAN MIGUEL RIVER

0.1 MI S OF SH 145, San Miguel, CO

Built 1988 Load: 43.2 t ADT: 140

SB I-25 On Ramp

Good

Over: LRT

At I-25 & Evans Ave, Denver, CO

Built 2005 Load: 43.3 t ADT: 207,000

COUNTY ROAD 228

Good

Over: FLORIDA RIVER

.3 MI SW OF CR 225, La Plata, CO

Built 1990 Load: 43.3 t ADT: 921

E-470 SB

Good

Over: Colfax Avenue

20.32 MI FROM I25, Arapahoe, CO

Built 2006 Load: 43.4 t ADT: 18,391

Spring Creek Place

Good

Over: Wonderland Creek

570 ft from 34th St., Boulder, CO

Built 2017 Load: 43.4 t

I 25 ML NBND

Good

Over: WELD COUNTY ROAD 20

3 MI N OF JCT SH52/DACONO, Weld, CO

Built 2006 Load: 43.4 t ADT: 45,500

COUNTY ROAD 6000

Good

Over: MONTROSE AND DELTA CANAL

.7 MI S OF SPRING CK RD, Montrose, CO

Built 1997 Load: 43.5 t ADT: 168

COUNTY ROAD TT.5

Good

Over: TWO BUTTES CREEK

.8 MI S OF CR QQ, Baca, CO

Built 1996 Load: 43.6 t ADT: 41

Showing 7,751-7,800 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.