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

Harvard Street

Good

Over: Oligarchy Ditch

50 Ft So. of N. Shore Dr., Boulder, CO

Built 1998 Load: 32.7 t ADT: 2,509

Sunset Street

Good

Over: Saint Vrain Creek

0.1 S Boston Ave, Boulder, CO

Built 2016 Load: 32.7 t ADT: 7,282

96th Street

Good

Over: BNSF RR

250 Ft. N of CR 19, Boulder, CO

Built 2006 Load: 32.7 t ADT: 15,821

Sheridan Boulevard

Good

Over: Local Drainage

0.6 Mi N of 120th Ave, Broomfield, CO

Built 1987 Load: 32.7 t ADT: 24,570

Zuni Street

Good

Over: Ped Undrpss/Plaster Rsrv

0.2 mi N of 136th Ave, Broomfield, CO

Built 2002 Load: 32.7 t ADT: 7,638

NWP WB

Good

Over: WB Dillon Road

5.59 MI FROM I-25, Broomfield, CO

Built 2002 Load: 32.7 t ADT: 12,000

COUNTY ROAD 371

Good

Over: ARKANSAS RIVER

1.6 MI N OF MAIN STREET, Chaffee, CO

Built 1987 Load: 32.7 t ADT: 487

US 40 ML

Good

Over: GAME CROSSING

8 MILES WEST OF EMPIRE, Clear Creek, CO

Built 2005 Load: 32.7 t ADT: 6,600

COUNTY ROAD 10

Good

Over: ALAMOSA RIVER

.6 MI N OF SH 15, Conejos, CO

Built 1989 Load: 32.7 t ADT: 102

COUNTY ROAD 28

Good

Over: CONEJOS RIVER DIVERSION

.6 MI N OF CR X, Conejos, CO

Built 2024 Load: 32.7 t ADT: 60

COUNTY ROAD 15

Good

Over: CULEBRA EASTDALE CANAL

JUST N OF CR P.7 AND 14.6, Costilla, CO

Built 1990 Load: 32.7 t ADT: 41

COUNTY ROAD 4065

Good

Over: FIRE MOUNTAIN CANAL

.6 MI N OF SH 133, Delta, CO

Built 1981 Load: 32.7 t ADT: 248

CR D/25 MESA ROAD

Good

Over: ROUBIDEAU CREEK

2.8 MI W OF SH 348, Delta, CO

Built 1987 Load: 32.7 t ADT: 198

MARKET ST

Good

Over: CHERRY CREEK

MARKET ST AT SPEER BLVD, Denver, CO

Built 1985 Load: 32.7 t ADT: 16,876

STOUT ST

Good

Over: CHERRY CREEK

STOUT AT SPEER BLVD, Denver, CO

Built 1985 Load: 32.7 t ADT: 7,674

GRANT ST

Good

Over: CHERRY CREEK

GRANT ST AT SPEER BLVD, Denver, CO

Built 1986 Load: 32.7 t ADT: 7,732

LOGAN ST

Good

Over: CHERRY CREEK

LOGAN AT SPEER BLVD, Denver, CO

Built 1985 Load: 32.7 t ADT: 8,235

ARKINS CT

Good

Over: LOCAL DRAINAGE

ARKINS CT N OF 38TH ST, Denver, CO

Built 1962 Load: 32.7 t ADT: 1,724

CHERRY CK DR

Good

Over: STORM DRAINAGE

JUST E OF MONACO PKWY, Denver, CO

Built 1995 Load: 32.7 t ADT: 7,921

KNOX COURT

Good

Over: LAKEWOOD GULCH

JUST N OF 12TH AVE, Denver, CO

Built 2014 Load: 32.7 t ADT: 3,320

PEORIA ST

Good

Over: MONTBELLO DITCH

PEORIA AT 49TH, Denver, CO

Built 1964 Load: 32.7 t ADT: 23,175

12TH AVE

Good

Over: WESTERLY CREEK

ALLEY E OF XANTHIA ST, Denver, CO

Built 1983 Load: 32.7 t ADT: 419

TOWER ROAD

Good

Over: FIRST CREEK

0.1 MILE SOUTH OF 56TH AV, Denver, CO

Built 2009 Load: 32.7 t ADT: 21,155

ARGONNE STREET

Good

Over: BLUE GRAMA CHANNEL

N of ARGONNE AND 61ST, Denver, CO

Built 2019 Load: 32.7 t ADT: 4,047

NORTH CEYLON ST

Good

Over: BLUE GRAMA CHANNEL

N of ARGONNE & 61ST, Denver, CO

Built 2019 Load: 32.7 t ADT: 4,047

SE 2ND LEVEL

Good

Over: PARKING LOT

EAST OF NEW PARKING STR, Denver, CO

Built 2017 Load: 32.7 t ADT: 1,139

SE 4/5TH LVL PARK

Good

Over: 84TH AVE.

BTWN SE GARAGES, Denver, CO

Built 2017 Load: 32.7 t ADT: 348

DUNKIRK STREET

Good

Over: SECOND CREEK

0.4 MILE NORTH OF 64th AV, Denver, CO

Built 2006 Load: 32.7 t ADT: 876

YORK STREET

Good

Over: I70 ML

0.5 MI W of STEELE, Denver, CO

Built 2021 Load: 32.7 t ADT: 5,970

FDR 514

Good

Over: PLATEAU CREEK

21.4 MI ON FDR 514, Dolores, CO

Built 1978 Load: 32.7 t ADT: 12

COUNTY ROAD 38

Good

Over: FISH CREEK

13 MI NE OF SH 145, Dolores, CO

Built 1995 Load: 32.7 t ADT: 136

CASTLE OAK DRIVE

Good

Over: MCMURDO GULCH

0.1 MI S OF JUNIPER PLACE, Douglas, CO

Built 2022 Load: 32.7 t ADT: 3,289

PLUM CREEK PARKWAY

Good

Over: WILDLIFE CROSSING

0.6 MI E OF LAKE GULCH RD, Douglas, CO

Built 2009 Load: 32.7 t ADT: 5,195

TIMBER MILL PKWY

Good

Over: EAST PLUM CREEK

0.6 MI SE OF US 85, Douglas, CO

Built 2022 Load: 32.7 t

N MEADOWS PARKWAY

Good

Over: EAST PLUM CREEK

0.1 MI S OF US 85, Douglas, CO

Built 2015 Load: 32.7 t ADT: 13,877

WATERTON ROAD

Good

Over: HIGHLINE CANAL

0.5 MI FROM WATERTON CANY, Douglas, CO

Built 2009 Load: 32.7 t ADT: 13,977

RAMPART RANGE ROAD

Good

Over: HIGHLINE CANAL

0.1 MI S OF TITAN ROAD, Douglas, CO

Built 2007 Load: 32.7 t ADT: 12,559

Chambers Road SB

Good

Over: E-470

3.54 MI FROM I 25, Douglas, CO

Built 2004 Load: 32.7 t ADT: 2,000

SH 470 ML WBND

Good

Over: BROADWAY

1.5 MI W OF JCT SH 177, Douglas, CO

Built 1985 Load: 32.7 t ADT: 41,000

HESS ROAD WB

Good

Over: CHERRY CREEK

0.5 MI W OF PARKER RD, Douglas, CO

Built 2008 Load: 32.7 t ADT: 10,120

HESS ROAD EB

Good

Over: CHERRY CREEK

.5 MI W. OF PARKER RD., Douglas, CO

Built 2014 Load: 32.7 t ADT: 11,038

PINE LANE

Good

Over: CHERRY CREEK

0.4 MI W OF PARKER RD, Douglas, CO

Built 2008 Load: 32.7 t ADT: 17,155

COUNTY ROAD 293

Good

Over: TURKEY CREEK

0.14 M N OF EAGLE ST, Eagle, CO

Built 1992 Load: 32.7 t ADT: 86

COUNTY ROAD 301

Good

Over: SWEETWATER CREEK

6.9 MI N OF DOTSERO, Eagle, CO

Built 1992 Load: 32.7 t ADT: 523

PREV. US 6 ML

Good

Over: DRAW

0.9 MI E OF GYPSUM, Eagle, CO

Built 1933 Load: 32.7 t ADT: 9,390

SH 131 ML

Good

Over: ALKALI CREEK

2.5 MI N OF WOLCOTT, Eagle, CO

Built 1963 Load: 32.7 t ADT: 1,600

I 70 ML WBND

Good

Over: HILLSIDE

9.7 MI E OF JCT SH24, Eagle, CO

Built 1977 Load: 32.7 t ADT: 10,000

VAIL VALLEY DR

Good

Over: GORE CREEK

0.1 MI S OF FRONTAGE ROAD, Eagle, CO

Built 1986 Load: 32.7 t ADT: 2,933

MILITARY RES BNDRY

Good

Over: Drainage channel

4 mi. S of junct w/ Rte 5, El Paso, CO

Built 1984 Load: 32.7 t ADT: 100

COTTONWOOD DRIVE

Good

Over: NORTH MONUMENT CREEK

0.5 MI. FROM E. PINE LOOP, El Paso, CO

Built 2014 Load: 32.7 t ADT: 100

Showing 6,601-6,650 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.