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

US 160 ML

Fair

Over: DEVIL CREEK

18 MI W. OF PAGOSA SPRING, Archuleta, CO

Built 1955 Load: 20.0 t ADT: 4,300

US 285 ML

Fair

Over: SOUTH ARKANSAS RIVER

6.1 MI NW OF CHAF-SAGUACH, Chaffee, CO

Built 1938 Load: 20.0 t ADT: 3,600

HOLLY ST

Fair

Over: HIGHLINE CANAL

HOLLY AND ILIFF AVE, Denver, CO

Built 1975 Load: 20.0 t ADT: 6,506

YALE AVE

Fair

Over: HIGHLINE CANAL

YALE E OF MONACO PRKWY, Denver, CO

Built 1964 Load: 20.0 t ADT: 16,143

I 70 ML

Fair

Over: LOWELL BLVD

DENVER, Denver, CO

Built 1966 Load: 20.0 t ADT: 90,000

SH 26 ML

Fair

Over: SOUTH PLATTE RIVER

I 25 & ALAMEDA IN DEN, Denver, CO

Built 1911 Load: 20.0 t ADT: 42,000

PREV. US 6 ML

Fair

Over: GYPSUM CREEK

IN GYPSUM, Eagle, CO

Built 1933 Load: 20.0 t ADT: 9,390

GUBBINS-JOHNSON AC

Fair

Over: COLORADO RIVER

0.3 MILES WEST OF U.S. RO, Grand, CO

Built 1983 Load: 20.0 t ADT: 25

SH 149 ML

Fair

Over: LAKE FK GUNNISON RIVER

2.5 MI S. OF LAKE CITY, Hinsdale, CO

Built 1954 Load: 20.0 t ADT: 560

I 25 ML SBND

Fair

Over: GREASEWOOD ARROYO

11.8 MI N OF WALSENBURG, Huerfano, CO

Built 1967 Load: 20.0 t ADT: 7,000

SH 12 ML

Fair

Over: CUCHARAS RIVER

4 MI S OF JCT US 160, Huerfano, CO

Built 1947 Load: 20.0 t ADT: 1,300

I 25 ML SBND

Fair

Over: DRAW

14.8 MI SO OF JCT US 160, Las Animas, CO

Built 1959 Load: 20.0 t ADT: 5,500

COUNTY ROAD 17.5

Fair

Over: TRIB. BIG SALT WASH

.3 MI S OF RD L.50, Mesa, CO

Built 1988 Load: 20.0 t ADT: 1,045

COUNTY ROAD G.5

Fair

Over: GRAND VALLEY CANAL

.6 MI E OF RD 25, Mesa, CO

Built 1984 Load: 20.0 t ADT: 686

County Road 22

Fair

Over: Upper Platte Beaver Cnl

0.9 Mi N of US Hwy 34, Morgan, CO

Built 1973 Load: 20.0 t ADT: 48

County Road T

Fair

Over: Kiowa Creek

0.1 Mi E of Co Rd 4, Morgan, CO

Built 1963 Load: 20.0 t ADT: 58

US 50 ML EBND

Fair

Over: CROOKED ARROYO

2.5 MILES EAST OF SWINK, Otero, CO

Built 1955 Load: 20.0 t ADT: 5,000

COUNTY ROAD L

Fair

Over: EAST FORK CLAY CREEK

3.4 MI E OF CR 3, Prowers, CO

Built 1965 Load: 20.0 t ADT: 22

COUNTY ROAD 3S

Fair

Over: EMPIRE CANAL

1.1 MI E OF CR. 3E, Rio Grande, CO

Built 1968 Load: 20.0 t ADT: 42

COUNTY ROAD 7W

Fair

Over: RIO GRANDE CANAL

.4 MI N OF SH 374, Rio Grande, CO

Built 1966 Load: 20.0 t ADT: 17

SH 131 ML

Fair

Over: CITY STREET

IN OAK CREEK, Routt, CO

Built 1935 Load: 20.0 t ADT: 2,800

SH 131 ML

Fair

Over: YAMPA RIVER

0.5 MI S OF PHIPPSBURG, Routt, CO

Built 1936 Load: 20.0 t ADT: 1,700

US 85 ML

Fair

Over: LITTLE OWL CREEK

8.8 MI S OF WYOMING S.L., Weld, CO

Built 1957 Load: 20.0 t ADT: 3,000

County Road 45.5

Fair

Over: Latham Ditch

0.2 Mi N of Co Rd 54.5, Weld, CO

Built 1970 Load: 20.0 t ADT: 14

County Road 53

Fair

Over: Gilmore Ditch

0.7 Mi N of Co Rd 42, Weld, CO

Built 1990 Load: 20.0 t ADT: 363

County Road 70

Fair

Over: New Cache LaPoudre Canal

0.8 Mi E of Co Rd 49, Weld, CO

Built 1985 Load: 20.0 t ADT: 36

I 25 ML

Fair

Over: BIG DRY CREEK

1.6 MI NO OF JCT SH 128, Adams, CO

Built 1956 Load: 20.1 t ADT: 116,000

Access State Park

Fair

Over: Franklin Eddy Canal

San Luis State Park, Alamosa, CO

Built 1985 Load: 20.1 t ADT: 50

WOODMEN ROAD

Fair

Over: MONUMENT CREEK

0.25 MI W OF I-25, El Paso, CO

Built 1988 Load: 20.1 t ADT: 21,121

CO RD 29

Fair

Over: CEBOLLA CREEK

Just South of CR 27, Gunnison, CO

Built 1965 Load: 20.1 t ADT: 44

PIERCE ST

Fair

Over: WEIR GULCH

AT KENTUCKY AVENUE, Jefferson, CO

Built 1966 Load: 20.1 t ADT: 6,278

SH 12 ML

Fair

Over: MIDDLE FK PURGATOIRE RVR

6.3 MI SE OF MONUMENT PAR, Las Animas, CO

Built 1938 Load: 20.1 t ADT: 320

County Road 38

Fair

Over: Slater Creek

0.16 Mi West of Co Rd 1, Moffat, CO

Built 1978 Load: 20.1 t ADT: 36

COUNTY ROAD 4

Fair

Over: ROCKY FORD HIGHLINE CANA

.2 MI S OF CR HH, Otero, CO

Built 1992 Load: 20.1 t ADT: 85

US 50 ML WBND

Fair

Over: TURKEY CREEK

5.9 MI E OF FREMONT-PUEBL, Pueblo, CO

Built 1934 Load: 20.1 t ADT: 4,900

County Road 50

Fair

Over: Gilmore Annex Canal

0.5 Mi E of Co Rd 51, Weld, CO

Built 1982 Load: 20.1 t ADT: 1,266

CONVERSE ROAD

Fair

Over: LOST CREEK TRIBUTARY

.6 MI S OF 104TH AVENUE, Adams, CO

Built 1960 Load: 20.2 t ADT: 52

COUNTY ROAD 22.3

Fair

Over: CULEBRA CREEK

BETWEEN CR L.7 AND M.5, Costilla, CO

Built 1984 Load: 20.2 t ADT: 21

I 25 ML

Fair

Over: HIGHLINE CANAL

0.4 MI S OF YALE INT., Denver, CO

Built 1950 Load: 20.2 t ADT: 213,000

US 34 ML

Fair

Over: DRAW

3.8 MI W OF LOVELAND, Larimer, CO

Built 1933 Load: 20.2 t ADT: 4,900

COUNTY ROAD 36.25

Fair

Over: GRAND VALLEY CANAL

.5 MI S OF US 6, Mesa, CO

Built 1968 Load: 20.2 t ADT: 163

CR 37.9 BOWER AV

Fair

Over: GOVT. HIGHLINE CANAL

JUST N OF RD G.7, Mesa, CO

Built 1989 Load: 20.2 t ADT: 108

FERN ROAD

Fair

Over: COAL CREEK

3 MI SW OF OLATHE, Montrose, CO

Built 1985 Load: 20.2 t ADT: 51

US 550 ML

Fair

Over: CEDAR WASH

S. side of Montrose, Montrose, CO

Built 1936 Load: 20.2 t ADT: 25,000

County Road 8

Fair

Over: Phillips Creek

0.5 Mi E of St Hwy 131, Routt, CO

Built 1950 Load: 20.2 t ADT: 28

17th Street

Fair

Over: Greeley No. 3 Ditch

Btwn 6th and 7th Ave, Weld, CO

Built 1984 Load: 20.2 t ADT: 462

144TH AVENUE

Fair

Over: BURLINGTON CANAL

0.5 MI E OF PICADILLY RD, Adams, CO

Built 1985 Load: 20.3 t ADT: 1

US 40 ML

Fair

Over: ADOBE GULCH

4.9 MI SE OF LINCOLN-CHEY, Cheyenne, CO

Built 1937 Load: 20.3 t ADT: 3,300

US 350 ML

Fair

Over: DRAW

11.6 MILES NE OF MODEL, Las Animas, CO

Built 1937 Load: 20.3 t ADT: 470

COUNTY ROAD Z

Fair

Over: SAGUACHE CREEK

1.5 MI W OF CR 46, Saguache, CO

Built 1987 Load: 20.3 t ADT: 187

Showing 1,401-1,450 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.