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

Denver Avenue

Good

Over: Greeley Loveland Canal

0.1 Mi N of US Hwy 34, Larimer, CO

Built 1985 Load: 32.7 t ADT: 3,035

SW 14th Street

Good

Over: Misc Drainage Basin

600 FT W of Katie Ave, Larimer, CO

Built 1901 Load: 32.7 t ADT: 6,085

County Road 14

Good

Over: Home Supply Ditch

JUST W. OF CR 21, Larimer, CO

Built 2007 Load: 32.7 t ADT: 4,191

County Road 24

Good

Over: Buckhorn Creek

0.8 Mi E of Co Rd 27, Larimer, CO

Built 1965 Load: 32.7 t ADT: 437

County Road 31D

Good

Over: Handy Ditch

50 ft N of Co Rd 22H, Larimer, CO

Built 1951 Load: 32.7 t ADT: 250

County Road 43

Good

Over: N Fork Big Thompson Rive

3.3 Mi SE of Co Rd 51B, Larimer, CO

Built 2016 Load: 32.7 t ADT: 349

County Road 9

Good

Over: Larimer County Canal

0.4 Mi N of Co Rd 56, Larimer, CO

Built 2018 Load: 32.7 t ADT: 3,250

Access Road

Good

Over: Big Thompson River

25 ft S on US 34, Larimer, CO

Built 2018 Load: 32.7 t ADT: 16

Bluff Lane

Good

Over: Handy Ditch

0.5 Mi W of S CR 23, Larimer, CO

Built 2016 Load: 32.7 t ADT: 96

Bluff Lane

Good

Over: Home Supply Ditch

300 FT W of S CR 23, Larimer, CO

Built 2016 Load: 32.7 t ADT: 77

Stanton Ridge Road

Good

Over: Unnamed Canal

S of E CR 32, Larimer, CO

Built 2016 Load: 32.7 t ADT: 262

Willows Bend Dr.

Good

Over: Handy Ditch

0.4 Mi S of W CR 20, Larimer, CO

Built 2016 Load: 32.7 t ADT: 22

Mount Owens Street

Good

Over: Local Drainage

10 Ft W of Frontage Road, Larimer, CO

Built 2005 Load: 32.7 t ADT: 524

Ronald Reagan Ave.

Good

Over: Local Drainage

10 Ft W Frontage Road, Larimer, CO

Built 2005 Load: 32.7 t ADT: 1,564

US 160 ML

Good

Over: DRAW

6.1 MI E OF JCT I 25, Las Animas, CO

Built 1968 Load: 32.7 t ADT: 1,700

US 160 ML

Good

Over: SALT CREEK

18.1 MI E OF JCT US 350, Las Animas, CO

Built 1949 Load: 32.7 t ADT: 170

County Road 20

Good

Over: Pawnee Ditch

0.7 Mi E of Co Rd 29, Logan, CO

Built 2011 Load: 32.7 t ADT: 33

County Road 78

Good

Over: Cottonwood Creek

0.3 Mi E of Co Rd 67, Logan, CO

Built 1970 Load: 32.7 t ADT: 44

I 70 ML

Good

Over: DRAW

0.2 MI. W. OF MESA/GARFIE, Mesa, CO

Built 1951 Load: 32.7 t ADT: 18,000

COUNTY ROAD 22

Good

Over: PERSIGO WASH

JUST N OF US 60, Mesa, CO

Built 2012 Load: 32.7 t ADT: 7,644

Riverside Parkway

Good

Over: INDIAN WASH

JUST W OF RD 28, Mesa, CO

Built 2008 Load: 32.7 t ADT: 12,359

I 70 ML EBND

Good

Over: REED DRAIN

0.6 MI E OF JCT SH 139, Mesa, CO

Built 1970 Load: 32.7 t ADT: 5,500

US 6 ML

Good

Over: LITTLE SALT WASH

W. EDGE OF FRUITA, Mesa, CO

Built 1987 Load: 32.7 t ADT: 4,900

Canyon Creek Dr.

Good

Over: Entrance Creek

.5 MI N of S Broadway, Mesa, CO

Built 2023 Load: 32.7 t ADT: 103

COUNTY ROAD 34.6

Good

Over: GOVT. HIGHLINE CANAL

0.18 MI N OF COUNTY RD G, Mesa, CO

Built 1992 Load: 32.7 t ADT: 27

COUNTY ROAD 36

Good

Over: ORCHARD MESA CANAL NO. 1

0.1 MI N OF RD E.25, Mesa, CO

Built 2003 Load: 32.7 t ADT: 214

COUNTY ROAD 4

Good

Over: WEST SALT CREEK

2.0 MI NW OF CR S, Mesa, CO

Built 2010 Load: 32.7 t ADT: 25

COUNTY ROAD 6.5

Good

Over: GOVT. HIGHLINE CANAL

.5 MI N OF RD S, Mesa, CO

Built 1988 Load: 32.7 t ADT: 5

COUNTY ROAD G.7

Good

Over: PRICE DITCH

.1 MI E OF RD 36.30, Mesa, CO

Built 1950 Load: 32.7 t ADT: 650

EAST 7TH STREET

Good

Over: UNNAMED DRAINAGE

EAST OF L WAY, Montezuma, CO

Built 2005 Load: 32.7 t ADT: 1,316

COUNTY ROAD 2700

Good

Over: TUTTLE DRAW

1.5 MI N OF CR CC, Montrose, CO

Built 2013 Load: 32.7 t ADT: 116

Birch Street

Good

Over: Loutsenhizer Canal

0.1 Mi E of S Hillcrest, Montrose, CO

Built 2022 Load: 32.7 t ADT: 64

SH 71 ML

Good

Over: FT LYON CANAL

8 MI SOUTH OF ORDWAY, Otero, CO

Built 2013 Load: 32.7 t ADT: 1,700

SH 71 ML

Good

Over: ARKANSAS RIVER

2.9 MI N OF ROCKY FORD, Otero, CO

Built 2019 Load: 32.7 t ADT: 1,700

SIXTH ST.

Good

Over: KING ARROYO

2 BLOCKS E OF SH 109, Otero, CO

Built 1973 Load: 32.7 t ADT: 1,307

COUNTY ROAD 31

Good

Over: HORSE CREEK

1.6 MI N OF CR MM, Otero, CO

Built 1972 Load: 32.7 t ADT: 272

CANAL ROAD

Good

Over: FORT LYON CANAL SLUICE

IN CITY OF NORTH LA JUNTA, Otero, CO

Built 1970 Load: 32.7 t ADT: 238

US 550 ML

Good

Over: WILDLIFE CROSSING

COLONA PASSING LANES, Ouray, CO

Built 2011 Load: 32.7 t ADT: 8,300

COUNTY ROAD 24

Good

Over: DALLAS CREEK

3.2 MI W OF US 550, Ouray, CO

Built 1999 Load: 32.7 t ADT: 399

7TH AVE

Good

Over: UNCOMPAHGRE RIVER

IN CITY OF OURAY, Ouray, CO

Built 1992 Load: 32.7 t ADT: 959

SH 9 ML

Good

Over: PLATTE GULCH

6.8 MI N. OF JCT U.S. 285, Park, CO

Built 2023 Load: 32.7 t ADT: 4,000

US 24 ML

Good

Over: SEASONAL WASH

0.65 MI W OF US285, Park, CO

Built 2023 Load: 32.7 t ADT: 2,200

US 24 ML

Good

Over: SEASONAL DRAW

2.9 MI W of US285, Park, CO

Built 2023 Load: 32.7 t ADT: 2,200

US 24 ML

Good

Over: S FK SOUTH PLATTE RVR

0.5 MI NW OF LAKE GEORGE, Park, CO

Built 2000 Load: 32.7 t ADT: 2,600

COUNTY ROAD 10SW4

Good

Over: N FK SOUTH PLATTE RIVER

N OF SHAWNEE AND US 285, Park, CO

Built 1960 Load: 32.7 t ADT: 28

COUNTY ROAD 77

Good

Over: TARRYALL CREEK

AT TARRYALL RES OUTLET, Park, CO

Built 2011 Load: 32.7 t ADT: 170

COUNTY ROAD 4

Good

Over: FRYING PAN RIVER

AT INLET TO REUDI RESERVO, Pitkin, CO

Built 1970 Load: 32.7 t ADT: 241

WOOD RD

Good

Over: TRAUMA LANE

.08 MI S OF BRUSH CR RD, Pitkin, CO

Built 2008 Load: 32.7 t ADT: 2,498

COUNTY ROAD HH

Good

Over: WILLOW CREEK DRAIN

JUST WEST OF CR 9, Prowers, CO

Built 2005 Load: 32.7 t ADT: 267

OAK STREET

Good

Over: GREEN BELT FLOODWAY

JUST W OF 14TH STREET, Prowers, CO

Built 1975 Load: 32.7 t ADT: 809

Showing 6,751-6,800 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.