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

88TH AVENUE

Poor

Over: BOX ELDER CREEK

0.3 MI E OF HUDSON ROAD, Adams, CO

Built 1935 Load: 22.3 t ADT: 44

OLDE WADSWORTH BLV

Poor

Over: RALSTON CREEK

0.2 MI NORTH OF 58TH AVE, Jefferson, CO

Built 1983 Load: 22.3 t ADT: 3,557

SH 300 ML

Poor

Over: LAKE FORK CREEK

1.6 MI E OF JCT SH 24 MAL, Lake, CO

Built 1954 Load: 22.5 t ADT: 120

US 50 ML

Poor

Over: DRAW

8.4 MI EAST OF JCT SH 69, Fremont, CO

Built 1936 Load: 22.6 t ADT: 2,500

US 285 ML

Poor

Over: LITTLE DRY CREEK

HAMPDEN AT SHERMAN, Arapahoe, CO

Built 1955 Load: 22.7 t ADT: 46,000

No. 30th Street

Poor

Over: Four Mile Creek

300 Ft N of Palo Parkway, Boulder, CO

Built 1973 Load: 22.7 t ADT: 1,424

W LAKE CREEK RD

Poor

Over: EAST LAKE CREEK

0.2 MI W OF LAKE CREEK RD, Eagle, CO

Built 1940 Load: 22.7 t ADT: 1,102

US 85 ML

Poor

Over: FOUNTAIN CREEK

0.5 MI N OF JCT I-25 ML, El Paso, CO

Built 1930 Load: 22.7 t ADT: 11,000

CENTER AVENUE

Poor

Over: DRAINAGE

W. OF KIPLING STREET, Jefferson, CO

Built 1942 Load: 22.7 t ADT: 1,100

County Road 45E

Poor

Over: Dale Creek

0.2 Mi Northwest of US Hw, Larimer, CO

Built 1932 Load: 22.7 t ADT: 16

COUNTY ROAD 39

Poor

Over: COON CREEK

.5 MI SE OF CLIFFORD, Lincoln, CO

Built 1935 Load: 22.7 t ADT: 19

SH 86 ML

Poor

Over: KIOWA CREEK

W. EDGE OF KIOWA, Elbert, CO

Built 1948 Load: 22.8 t ADT: 4,900

US 34 ML

Poor

Over: DEVILS GULCH

E EDGE OF ESTES PARK, Larimer, CO

Built 1937 Load: 22.8 t ADT: 6,000

THIRD STREET

Poor

Over: ANDERSON ARROYO

300 FT W OF MAPLE AVENUE, Otero, CO

Built 1931 Load: 22.8 t ADT: 3,981

County Road 56

Poor

Over: Larimer County Canal

0.2 Mi E of US Hwy 287, Larimer, CO

Built 1930 Load: 22.9 t ADT: 91

COUNTY ROAD D

Poor

Over: DISAPPOINTMENT CREEK

4.5 MI NW CR 31, Dolores, CO

Built 1966 Load: 23.0 t ADT: 6

COUNTY RD 105.5

Poor

Over: TRIB. SAN FRANCISCO CRK

.8 MI S OF CR 22, Las Animas, CO

Built 1950 Load: 23.0 t ADT: 22

COUNTY ROAD M.80

Poor

Over: WEST SALT WASH

1.5 MI NW OF CR 8, Mesa, CO

Built 1931 Load: 23.0 t ADT: 131

County Road 24

Poor

Over: Wildcat Creek

150 Ft. N of Co Rd U.5, Morgan, CO

Built 1982 Load: 23.0 t ADT: 670

SH 59 ML

Poor

Over: SIX MILE CREEK

35.1 MI N OF JCT US 34, Phillips, CO

Built 1948 Load: 23.1 t ADT: 220

US 6 ML

Poor

Over: FRENCHMAN CREEK

IN HOLYOKE, Phillips, CO

Built 1935 Load: 23.3 t ADT: 1,900

MAPLE ST/CR HH.5

Poor

Over: LAMAR CANAL

JUST E OF CR 9, Prowers, CO

Built 1983 Load: 23.3 t ADT: 794

COUNTY RD 42.0

Poor

Over: FEEDER DITCH

JUST EAST OF CR 79, Las Animas, CO

Built 1980 Load: 23.4 t ADT: 100

WATER STREET

Poor

Over: CAMP CREEK

AT 31ST STREET, El Paso, CO

Built 1955 Load: 23.5 t ADT: 2,002

N Shields St-CR17

Poor

Over: Terry Lake Inlet Canal

0.5 Mi N of US Hwy 287, Larimer, CO

Built 1962 Load: 23.5 t ADT: 4,595

US 36 FR RD

Poor

Over: BOULDER CREEK SR

28th STREET IN BOULDER, Boulder, CO

Built 1952 Load: 23.6 t ADT: 1,264

SH 9 ML

Poor

Over: UP RR

S. EDGE OF KREMMLING, Grand, CO

Built 1942 Load: 23.6 t ADT: 3,500

US 50 ML

Poor

Over: FOUNTAIN CREEK

IN PUEBLO, Pueblo, CO

Built 1958 Load: 23.6 t ADT: 30,000

US 40 ML

Poor

Over: SHELTON DITCH

E edge of Hayden, Routt, CO

Built 1954 Load: 23.6 t ADT: 6,400

County Road 44

Poor

Over: Gilmore Ditch

0.7 Mi E of Co Rd 51, Weld, CO

Built 1981 Load: 23.6 t ADT: 2,095

BROADWAY

Poor

Over: LITTLE DRY CREEK

0.1 MI N OF US 285, Arapahoe, CO

Built 1935 Load: 23.8 t ADT: 31,496

SH 67 ML

Poor

Over: LONG GULCH CREEK

5 MI N OF WOODLAND PARK, Teller, CO

Built 1939 Load: 23.8 t ADT: 2,300

County Road 72

Poor

Over: New Cache La Poudre Cana

0.8 Mi E of Co Rd 47, Weld, CO

Built 1960 Load: 23.9 t ADT: 62

SH 105 ML

Poor

Over: DRAW

2.7 ME S OF JCT SH 67, Douglas, CO

Built 1938 Load: 24.1 t ADT: 2,600

US 6 ML

Poor

Over: FRENCHMAN CREEK

0.6 MI E OF JCT US 385, Phillips, CO

Built 1934 Load: 24.2 t ADT: 1,500

SH 67 ML

Poor

Over: DRAW

3.1 MI N OF JCT SH 24 ML, Teller, CO

Built 1939 Load: 24.2 t ADT: 3,700

SH 14 ML

Poor

Over: EATON DITCH

2.4 MI E OF US85 AT AULT, Weld, CO

Built 1941 Load: 24.4 t ADT: 2,400

TENNYSON ST

Poor

Over: CLEAR CREEK

.1 MI N OF 54TH AVE, Adams, CO

Built 1965 Load: 24.5 t ADT: 2,700

CALHOUN-BYERS

Poor

Over: BIJOU CREEK

0.40 MI N OF 72ND AVE, Adams, CO

Built 1965 Load: 24.5 t ADT: 165

LAREDO STREET

Poor

Over: HIGHLINE CANAL

.25 MI N OF COLFAX, Adams, CO

Built 1970 Load: 24.5 t ADT: 5,975

COLORADO BLVD

Poor

Over: LITTLE DRY CREEK

0.4 MI. S. OF ORCHARD RD, Arapahoe, CO

Built 1970 Load: 24.5 t ADT: 4,036

ORCHARD RD

Poor

Over: HIGHLINE CANAL

.3 MI WEST OF UNIV BLVD, Arapahoe, CO

Built 1965 Load: 24.5 t ADT: 10,077

DRY CREEK RD

Poor

Over: WILLOW CREEK

.1 MI E OF MONACO, Arapahoe, CO

Built 1972 Load: 24.5 t ADT: 3,964

FDR 660

Poor

Over: RIO BLANCO

12.2 MI ESE OF PAGOSA SPG, Archuleta, CO

Built 1960 Load: 24.5 t ADT: 73

COUNTY ROAD 166

Poor

Over: RUNNING CREEK

1.3 MI W OF COUNTY RD 13, Elbert, CO

Built 1978 Load: 24.5 t ADT: 120

COUNTY RD 75.1

Poor

Over: LEITENSDORFER ARROYO

.2 MI NE OF CR 36, Las Animas, CO

Built 1935 Load: 24.5 t ADT: 290

US 6 ML EBND

Poor

Over: STERLING CANAL NO 1

4.7 MI NE OF JCT SH 63, Logan, CO

Built 1941 Load: 24.5 t ADT: 2,150

CR 30.7 Vansway Dr

Poor

Over: Sterling No 1 Ditch

0.2 Mi W of Co Rd 39, Logan, CO

Built 1960 Load: 24.5 t ADT: 104

COUNTY ROAD 14

Poor

Over: CATLIN CANAL

.3 MI S OF SH 50, Otero, CO

Built 1956 Load: 24.5 t ADT: 90

CR 230/BURNT MILL

Poor

Over: STINKING ARROYO

12.5 MI SW OF PUEBLO, Pueblo, CO

Built 1972 Load: 24.5 t ADT: 69

Showing 8,701-8,750 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.