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 38A

Good

Over: LA GARITA CREEK

.6 MI N OF CR 32A, Saguache, CO

Built 1985 Load: 15.2 t ADT: 121

WINDING FOREST RD.

Good

Over: FALL CREEK

18 MI W OF TELLURIDE, San Miguel, CO

Built 1996 Load: 15.2 t ADT: 63

GRAND AVENUE

Good

Over: NORTH INLET

E end of Grand Avenue, Grand, CO

Built 2001 Load: 15.3 t ADT: 351

LAFAYETTE ST

Good

Over: EAST HARVARD GULCH

LAFAYETTE AT HARVARD GL, Denver, CO

Built 1967 Load: 15.5 t ADT: 258

COUNTY ROAD 53

Good

Over: SMOKY HILL RIVER

0.8 MILES SOUTH OF ROAD G, Kit Carson, CO

Built 1965 Load: 15.5 t ADT: 51

SH 83 ML

Good

Over: SULPHUR GULCH

8.1 MI N OF JCT SH 86, Douglas, CO

Built 1981 Load: 15.7 t ADT: 44,000

SH 1 ML

Good

Over: BOX ELDER CREEK

IN WELLINGTON, Larimer, CO

Built 1968 Load: 15.7 t ADT: 5,200

COUNTY ROAD 8S

Good

Over: EMPIRE CANAL

JUST E OF CR 5E, Rio Grande, CO

Built 1992 Load: 15.9 t ADT: 377

COUNTY ROAD G

Good

Over: SMOKY HILL RIVER

0.5 MILES WEST OF ROAD 55, Kit Carson, CO

Built 1965 Load: 16.0 t ADT: 54

75TH AVE

Good

Over: LITTLE DRY CREEK

75TH AVE E OF SHERIDAN, Adams, CO

Built 1988 Load: 16.2 t ADT: 817

SH 2 ML

Good

Over: UP RR, RTD LR

IN DENVER, Denver, CO

Built 2002 Load: 16.2 t ADT: 49,000

US 160 ML

Good

Over: SAN FRANCISCO CREEK

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

Built 1999 Load: 16.2 t ADT: 290

FRANKLIN ST

Good

Over: EAST HARVARD GULCH

FRANKLIN & E HARVARD, Denver, CO

Built 1967 Load: 16.3 t ADT: 574

SH 14 ML

Good

Over: LAKE CANAL

0.85 MI W OF JCT I-25, Larimer, CO

Built 1948 Load: 16.4 t ADT: 32,000

COUNTY ROAD BB

Good

Over: BEAVER CREEK

0.3 MILES EAST OF HWY 385, Kit Carson, CO

Built 1965 Load: 16.7 t ADT: 101

County Road 3

Good

Over: Bijou Canal

0.5 Mi N of Co Rd U, Morgan, CO

Built 1965 Load: 16.8 t ADT: 32

Brown Trout Lane

Good

Over: Big Thompson River

0.2 Mi S of US Hwy 34, Larimer, CO

Built 1977 Load: 16.9 t ADT: 2

Access Road

Good

Over: Big Thompson River

60 Ft N of US Hwy 34, Larimer, CO

Built 1977 Load: 16.9 t ADT: 25

COUNTY ROAD 32

Good

Over: TRIB. SMOKY HILL RIVER

0.8 MILES SOUTH OF ROAD B, Kit Carson, CO

Built 1968 Load: 17.0 t ADT: 33

COUNTY ROAD 59

Good

Over: SAND CREEK

0.9 MILES NORTH OF ROAD D, Kit Carson, CO

Built 1969 Load: 17.1 t ADT: 44

NO DATA ENTERED

Good

Over: WEST BRUSH CREEK - UPPER

NO DATA ENTERED, Eagle, CO

Built 2015 Load: 17.2 t ADT: 50

NO DATA ENTERED

Good

Over: NO DATA ENTERED

NO DATA ENTERED, Eagle, CO

Built 2011 Load: 17.2 t ADT: 50

COUNTY ROAD 31

Good

Over: S Fork REPUBLICAN RIVER

1.7 MILES NORTH OF ROAD E, Kit Carson, CO

Built 1977 Load: 17.2 t ADT: 333

FDR 105-4B

Good

Over: FRYING PAN RV

CHAPMAN C.G., Pitkin, CO

Built 1964 Load: 17.3 t ADT: 50

Deer Meadow Drive

Good

Over: Dry Creek

.7 MI W of Rossum Drive, Larimer, CO

Built 2008 Load: 17.4 t ADT: 108

County Road 122

Good

Over: Owl Creek

2.0 Mi E of US Hwy 85, Weld, CO

Built 1984 Load: 17.4 t ADT: 69

72ND AVENUE

Good

Over: BURLINGTON DITCH

0.1 MI WEST OF COLO BLVD, Adams, CO

Built 1994 Load: 17.5 t ADT: 1,268

JACKSON ST

Good

Over: EAST HARVARD GULCH

JACKSON ST N OF EAST YALE, Denver, CO

Built 1967 Load: 17.5 t ADT: 428

NFSR 740.1

Good

Over: S. FORK MICHIGAN RIVER

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

Built 1983 Load: 17.5 t ADT: 17

NO DATA ENTERED

Good

Over: ROAD

NO DATA ENTERED, La Plata, CO

Built 2013 Load: 17.5 t ADT: 50

Mountain Shadow Ln

Good

Over: Big Thompson River

25 Ft S of US Hwy 34, Larimer, CO

Built 1977 Load: 17.5 t ADT: 5

Elk Island Way

Good

Over: Big Thompson River

25 Ft N of US Hwy 34, Larimer, CO

Built 1977 Load: 17.5 t ADT: 34

SH 55 ML

Good

Over: SOUTH PLATTE RIVER

1 MI S OF JCT SH55+US138, Logan, CO

Built 1987 Load: 17.5 t ADT: 460

Seventh Street

Good

Over: Fortification Creek

50 Ft W of Lincoln St., Moffat, CO

Built 1985 Load: 17.5 t ADT: 2,414

NFSR 503.1

Good

Over: KING SOLOMON CREEK

1.2 MI. S OF NFSR 550.1, Routt, CO

Built 1982 Load: 17.5 t ADT: 50

COUNTY ROAD 58

Good

Over: SMOKY HILL RIVER

1.1 MILES NORTH OF ROAD G, Kit Carson, CO

Built 1969 Load: 17.7 t ADT: 23

FDR 255

Good

Over: ALAMOSA RIVER

17 MI SSW OF MONTE VISTA, Conejos, CO

Built 1980 Load: 17.8 t ADT: 39

FDR 381

Good

Over: PARK CREEK

8.4 MI SW OF SOUTH FORK, Mineral, CO

Built 1972 Load: 17.8 t ADT: 21

Blossom Road

Good

Over: Uncompahgre River

2.8 MI NW of Olathe, Montrose, CO

Built 2022 Load: 17.8 t ADT: 391

County Road GG

Good

Over: Trib. of Surveyor Creek

0.55 Mi N. of Co Rd 41, Washington, CO

Built 1960 Load: 17.8 t ADT: 18

CLAUDE COURT

Good

Over: BRANTNER GULCH

0.4 MI N OF 120TH AVE, Adams, CO

Built 1986 Load: 18.0 t ADT: 3,234

SH 103 ML

Good

Over: CHICAGO CREEK

1 MI SO OF JCT I 70 ML, Clear Creek, CO

Built 1958 Load: 18.1 t ADT: 2,300

BOULDER STREET

Good

Over: SHOOKS RUN

JUST E OF N CORONA STREET, El Paso, CO

Built 1995 Load: 18.1 t ADT: 7,057

COUGAR ROAD

Good

Over: DEER CREEK

2.7 MI W OF SH75, Jefferson, CO

Built 1969 Load: 18.1 t ADT: 889

US 550 ML

Good

Over: HERMOSA CREEK

10.6 MI NO OF JCT US 160, La Plata, CO

Built 1964 Load: 18.1 t ADT: 6,200

County Road P

Good

Over: Kiowa Creek

0.4 Mi E of Co Rd 3, Morgan, CO

Built 1971 Load: 18.1 t ADT: 856

EAGLE STREET

Good

Over: GYPSUM CREEK

0.1 MI W OF SH 6, Eagle, CO

Built 1991 Load: 18.5 t ADT: 3,010

RAMP TO SB ACADEMY

Good

Over: RAMP TO B ST

0.25 MI E OF B STREET, El Paso, CO

Built 2012 Load: 18.5 t ADT: 23,057

SH 94 ML

Good

Over: DRAW

8.1 MI E OF ELLICOTT, El Paso, CO

Built 1983 Load: 18.5 t ADT: 1,800

COUNTY ROAD 23

Good

Over: SPRING CREEK TRIBUTARY

1.0 MILE SOUTH OF ROAD M, Kit Carson, CO

Built 1971 Load: 18.5 t ADT: 24

Showing 5,751-5,800 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.