State profile · Below median Poor share

Colorado bridge safety

According to the Federal Highway Administration's 2024 National Bridge Inventory, condition ratings, load ratings, and Poor-condition shares for every public highway bridge in Colorado.

8,965
Public bridges
35.7%
Good condition
4.8%
Poor condition

Colorado holds 8,965 public highway bridges (#27 of 52 by inventory) with a 4.82% Poor share (#34 of 52 by Poor share).

That is 4.8% of the state's inventory, against an average of 7.5% across the 54 states and territories with Poor-rated bridges on file, which places it 19 of 54 ordered from the lowest Poor share upward. A bridge is rated Poor when its weakest applicable component scores 4 or below on the inspecting agency's 0-9 scale, so the category is a maintenance and funding signal rather than a closure order or a live crossing-safety verdict.

Inventory: FHWA NBI 2024 · last ETL August 2026

Total Bridges

8,965

Public highway bridges in Colorado

Good Condition

35.7%

3,197 bridges rated 7-9

-14.3pp vs 50% benchmark

Poor Condition

4.8%

432 bridges whose lowest applicable component is rated 0-4

-2.7pp vs national avg 7.5%

Colorado vs national bridge condition

Colorado - Good condition share 35.7%
National avg

Share of bridges rated 7-9 on the FHWA 0-9 scale (deck, superstructure, substructure all good).

Colorado - Poor-condition share 16.1%
National avg

Lower is better. Bar maxes at 30% (worst-state ceiling). National average sits at 7.5%.

Colorado in the national condition pattern

Each point is a state or territory in the FHWA NBI; the highlighted point is this profile.

Inventory size and Poor-condition share are different measures: Colorado has 8,965 bridges and a 4.8% Poor-condition share in the 2024 NBI, rank #19 of 54 jurisdictions ordered from the lowest share upward. The dashed comparisons mark the national average state rate and the midpoint of the plotted inventory range; neither is a live safety or closure threshold. Scatter plot of 54 data points. 0%10%20%30%40% 0k20k40k60k Public bridges in inventory (thousands) Poor-condition share (%) CO, Public bridges in inventory (thousands): 9k · Poor-condition share (%): 4.82%AL, Public bridges in inventory (thousands): 16.2k · Poor-condition share (%): 3.35%AK, Public bridges in inventory (thousands): 1.7k · Poor-condition share (%): 7.89%AZ, Public bridges in inventory (thousands): 8.6k · Poor-condition share (%): 1.15%AR, Public bridges in inventory (thousands): 13k · Poor-condition share (%): 5.43%CA, Public bridges in inventory (thousands): 25.8k · Poor-condition share (%): 5.91%CT, Public bridges in inventory (thousands): 4.4k · Poor-condition share (%): 4.72%DE, Public bridges in inventory (thousands): 0.9k · Poor-condition share (%): 1.26%DC, Public bridges in inventory (thousands): 0.3k · Poor-condition share (%): 1.95%FL, Public bridges in inventory (thousands): 13k · Poor-condition share (%): 2.79%GA, Public bridges in inventory (thousands): 15.1k · Poor-condition share (%): 1.59%GU, Public bridges in inventory (thousands): 0k · Poor-condition share (%): 12.77%HI, Public bridges in inventory (thousands): 1.2k · Poor-condition share (%): 6.53%ID, Public bridges in inventory (thousands): 4.6k · Poor-condition share (%): 4.9%IL, Public bridges in inventory (thousands): 26.9k · Poor-condition share (%): 9.35%IN, Public bridges in inventory (thousands): 19.5k · Poor-condition share (%): 5.22%IA, Public bridges in inventory (thousands): 23.7k · Poor-condition share (%): 19.16%KS, Public bridges in inventory (thousands): 24.9k · Poor-condition share (%): 5.26%KY, Public bridges in inventory (thousands): 14.5k · Poor-condition share (%): 7.37%LA, Public bridges in inventory (thousands): 12.7k · Poor-condition share (%): 11.48%ME, Public bridges in inventory (thousands): 2.5k · Poor-condition share (%): 15.41%MD, Public bridges in inventory (thousands): 5.5k · Poor-condition share (%): 4.56%MA, Public bridges in inventory (thousands): 5.3k · Poor-condition share (%): 8.88%MI, Public bridges in inventory (thousands): 11.4k · Poor-condition share (%): 11.27%MN, Public bridges in inventory (thousands): 13.5k · Poor-condition share (%): 4.44%MS, Public bridges in inventory (thousands): 16.7k · Poor-condition share (%): 6.03%MO, Public bridges in inventory (thousands): 24.6k · Poor-condition share (%): 8.95%MT, Public bridges in inventory (thousands): 5.2k · Poor-condition share (%): 6.81%NE, Public bridges in inventory (thousands): 15.4k · Poor-condition share (%): 7.9%NV, Public bridges in inventory (thousands): 2.1k · Poor-condition share (%): 1.14%NH, Public bridges in inventory (thousands): 2.5k · Poor-condition share (%): 7.51%NJ, Public bridges in inventory (thousands): 6.8k · Poor-condition share (%): 6.01%NM, Public bridges in inventory (thousands): 4k · Poor-condition share (%): 4.51%NY, Public bridges in inventory (thousands): 17.6k · Poor-condition share (%): 9.43%NC, Public bridges in inventory (thousands): 19.2k · Poor-condition share (%): 6.76%ND, Public bridges in inventory (thousands): 4.3k · Poor-condition share (%): 10.98%OH, Public bridges in inventory (thousands): 26.7k · Poor-condition share (%): 4.74%OK, Public bridges in inventory (thousands): 22.9k · Poor-condition share (%): 7.7%OR, Public bridges in inventory (thousands): 8.3k · Poor-condition share (%): 4.61%PA, Public bridges in inventory (thousands): 23.3k · Poor-condition share (%): 12.58%PR, Public bridges in inventory (thousands): 2.4k · Poor-condition share (%): 13.92%RI, Public bridges in inventory (thousands): 0.8k · Poor-condition share (%): 15.2%SC, Public bridges in inventory (thousands): 9.5k · Poor-condition share (%): 6.17%SD, Public bridges in inventory (thousands): 5.9k · Poor-condition share (%): 16.36%TN, Public bridges in inventory (thousands): 20.4k · Poor-condition share (%): 4.41%TX, Public bridges in inventory (thousands): 56.7k · Poor-condition share (%): 1.23%UT, Public bridges in inventory (thousands): 3.1k · Poor-condition share (%): 2.91%VT, Public bridges in inventory (thousands): 2.9k · Poor-condition share (%): 2.9%VI, Public bridges in inventory (thousands): 0k · Poor-condition share (%): 29.17%VA, Public bridges in inventory (thousands): 14.1k · Poor-condition share (%): 3.39%WA, Public bridges in inventory (thousands): 8.5k · Poor-condition share (%): 5.45%WV, Public bridges in inventory (thousands): 7.3k · Poor-condition share (%): 18.64%WI, Public bridges in inventory (thousands): 14.4k · Poor-condition share (%): 6.52%WY, Public bridges in inventory (thousands): 3.1k · Poor-condition share (%): 6.51%
Inventory size and Poor-condition share are different measures: Colorado has 8,965 bridges and a 4.8% Poor-condition share in the 2024 NBI, rank #19 of 54 jurisdictions ordered from the lowest share upward. The dashed comparisons mark the national average state rate and the midpoint of the plotted inventory range; neither is a live safety or closure threshold.

Colorado vs all states by public bridge inventory

Where this state's FHWA NBI public-highway bridge count sits among every state and territory on PlainBridges

8,965 27th of 54 higher than 27 of 54 states

States and territories, banded by public bridge inventory size

Each bar is a band; taller bars hold more states. The dashed line + filled bar mark this entry. Hover or tap any bar for its full count and share, and where it sits relative to this entry.

Source FHWA National Bridge Inventory · 2024

Read the rank neighborhood for Colorado

The highlighted point is Colorado: 8,965 bridges and 4.82% in Poor condition, rank #19 of 54 jurisdictions ordered from the lowest share upward. The five jurisdictions immediately above and below Colorado on that same Poor-share ordering:

  • Connecticut: 4,365 bridges · 4.72% Poor
  • Ohio: 26,729 bridges · 4.74% Poor
  • Colorado: 8,965 bridges · 4.82% Poor
  • Idaho: 4,616 bridges · 4.90% Poor
  • Indiana: 19,495 bridges · 5.22% Poor

The full national sortable table lives on the rankings page.

Material families in Colorado

Exclusive FHWA material families across all 8,965 bridges in this state; continuous variants fold into the parent family. Orthogonal to the Poor-share scatter above.

Who maintains Colorado’s inventory

State agency holds 38.8% of the 8,965 public highway bridges filed under Colorado in the 2024 NBI, the agency-of-record split for this state, not a condition verdict.

When Colorado’s bridges were built

Pre-1950 construction accounts for 8.5% of the 8,965 bridges with a recorded original year in Colorado. Era bands are orthogonal to the Poor-share ranking above.

Condition Distribution

Colorado35.7%59.5%GoodFairPoor
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 by Poor-condition share (lower share = better)

States are ranked by the share of bridges whose lowest applicable component rating is 4 or below. This describes recorded condition; it does not measure funding effectiveness or live crossing safety. States here sit immediately above and below Colorado on the same metric.

CT

Connecticut

4.72% top marginal rate
Structure
Progressive
Burden @ $100K
$4,365

OH

Ohio

4.74% top marginal rate
Structure
Progressive
Burden @ $100K
$26,729
Selected

CO

Colorado

4.82% top marginal rate
Structure
Progressive
Burden @ $100K
$8,965

ID

Idaho

4.90% top marginal rate
Structure
Progressive
Burden @ $100K
$4,616

IN

Indiana

5.22% top marginal rate
Structure
Progressive
Burden @ $100K
$19,495

Bridges Needing Most Attention in Colorado

Six lowest-condition bridges in Colorado, ranked by the portal's composite display score. Inspection intervals are risk-based under current NBIS rules.

144TH AVENUE

Poor

Over: LOST CREEK

1.2 MILES WEST OF SH 79, Adams, CO

Built 1960 Load: 0.0 t

County Road 79.0

Poor

Over: Salado Creek

2.8 Mi N of CR 64, Las Animas, CO

Built 2020 Load: 0.0 t ADT: 2

County Road 59

Poor

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

Poor

Over: NORTH CRESTONE CREEK

IN TOWN OF CRESTONE, Saguache, CO

Built 1991 Load: 2.3 t ADT: 65

CO Rd 32

Poor

Over: Feeder Ditch

0.28 MI E of Co Rd 75, Las Animas, CO

Built 1970 Load: 2.7 t ADT: 7

POTOMAC STREET

Poor

Over: OBRIAN CANAL

0.2 MILE NORTH OF SH 2, Adams, CO

Built 1940 Load: 3.8 t ADT: 190

All Bridges in Colorado

NWP EB

Fair

Over: WB Dillon Road

5.59 MI FROM I-25, Broomfield, CO

Built 2002 Load: 32.7 t ADT: 2,500

NWP EB

Fair

Over: Rock Creek

5.68 MI FROM I-25, Broomfield, CO

Built 2002 Load: 32.7 t ADT: 15,000

NWP WB

Fair

Over: Rock Creek

5.68 MI FROM I-25, Broomfield, CO

Built 2002 Load: 32.7 t ADT: 12,000

NWP EB

Fair

Over: EB Dillon Road

6.25 MI FROM I-25, Broomfield, CO

Built 2002 Load: 32.7 t ADT: 6,268

NWP WB

Fair

Over: EB Dillon Road

6.25 MI FROM I-25, Broomfield, CO

Built 2002 Load: 32.7 t ADT: 12,000

NWP Ramp

Fair

Over: EB Dillon Road

6.29 MI FROM I-25, Broomfield, CO

Built 2002 Load: 32.7 t ADT: 1,100

US 550 ML

Fair

Over: ANIMAS RIVER

IN DURANGO, La Plata, CO

Built 1910 Load: 32.7 t ADT: 28,000

SH 15 ML

Fair

Over: MONTE VISTA CANAL

9.3 MI SO OF JCT US 160 +, Rio Grande, CO

Built 1950 Load: 32.7 t ADT: 420

US 160 ML

Fair

Over: DRAW

1.3 MI W OF KANSAS, Baca, CO

Built 1935 Load: 32.7 t ADT: 200

US 160 ML

Fair

Over: DRAW

0.2 MI W OF KANSAS, Baca, CO

Built 1935 Load: 32.7 t ADT: 200

COUNTY ROAD 18

Fair

Over: ROCKY FORD HIGHLINE CANA

.1 MI N OF CR DD, Otero, CO

Built 1973 Load: 32.7 t ADT: 480

COUNTY ROAD 31

Fair

Over: FORT LYON STORAGE CANAL

1.9 MI N OF CR MM, Otero, CO

Built 1972 Load: 32.7 t ADT: 272

COUNTY ROAD CC

Fair

Over: TIMPAS CREEK

.5 MI W OF CR 24, Otero, CO

Built 1975 Load: 32.7 t ADT: 319

COUNTY ROAD DD

Fair

Over: ROCKY FORD HIGHLINE CANA

.2 MI E OF CR 18, Otero, CO

Built 1970 Load: 32.7 t ADT: 132

COUNTY ROAD 4.25

Fair

Over: ROCKY FORD HIGHLINE CANA

.2 MI S OF CR HH.5, Otero, CO

Built 1970 Load: 32.7 t ADT: 24

COUNTY ROAD 6

Fair

Over: APISHAPA RIVER

1.1 MI S OF SH 50, Otero, CO

Built 1975 Load: 32.7 t ADT: 58

COUNTY ROAD EE

Fair

Over: ROCKY FORD HIGHLINE CANA

.4 MI W OF CR 17, Otero, CO

Built 1973 Load: 32.7 t ADT: 73

COUNTY ROAD HH

Fair

Over: ROCKY FORD HIGHLINE CANA

1.1 MI E OF CR 3, Otero, CO

Built 1970 Load: 32.7 t ADT: 33

COUNTY ROAD 24

Fair

Over: UNCOMPAHGRE RIVER

0.1 MI W OF US 550, Ouray, CO

Built 1986 Load: 32.7 t ADT: 1,014

OAK STREET

Fair

Over: UNCOMPAHGRE RIVER

IN CITY OF OURAY, Ouray, CO

Built 1987 Load: 32.7 t ADT: 445

SH 12 ML

Fair

Over: DRAW

2.9 MI E OF WESTON, Las Animas, CO

Built 1925 Load: 32.7 t ADT: 520

Nelson Blvd.

Fair

Over: drainage ditch

S of Nelson and OConnell, El Paso, CO

Built 2018 Load: 32.7 t ADT: 200

Tank Trail

Fair

Over: Drainage ditch

SW Barkeley & Wickersham, El Paso, CO

Built 2009 Load: 32.7 t ADT: 50

Titus Blvd.

Fair

Over: C Ditch

Near Titus and St. Lo Dr., El Paso, CO

Built 2009 Load: 32.7 t ADT: 500

Titus Blvd.

Fair

Over: Clover Ditch

Titus and Barkeley Ave., El Paso, CO

Built 1972 Load: 32.7 t ADT: 500

COUNTY ROAD 64A

Fair

Over: N FK SOUTH PLATTE RIVER

W OF BAILEY ON CR 64A, Park, CO

Built 1960 Load: 32.7 t ADT: 157

MOUNTAIN DR

Fair

Over: N FK SOUTH PLATTE RIVER

S OF BELLFORD MTN HEIGHTS, Park, CO

Built 1977 Load: 32.7 t ADT: 143

CANTERBERRY PKWAY

Fair

Over: SULPHUR GULCH

JUST S OF CANTERBERRY TL, Douglas, CO

Built 1998 Load: 32.7 t ADT: 6,259

CANTERBERRY TRAIL

Fair

Over: SULPHUR GULCH

0.1 MI S OF GLENMOOR DR, Douglas, CO

Built 1998 Load: 32.7 t ADT: 2,280

PARKERHOUSE RD

Fair

Over: CHERRY CREEK TRIBUTARY

0.1 MI W OF JORDAN RD, Douglas, CO

Built 2001 Load: 32.7 t ADT: 351

CLINE DRIVE

Fair

Over: N FK SOUTH PLATTE RIVER

IN SINGLETON N OF HWY 285, Park, CO

Built 1960 Load: 32.7 t ADT: 163

COUNTY ROAD 15

Fair

Over: CRYSTAL RIVER

E OF SH 133 MO 53, Pitkin, CO

Built 1985 Load: 32.7 t ADT: 373

COUNTY ROAD 16

Fair

Over: TRIB. NORTH BUTTE CREEK

3 MI N OF CR F, Prowers, CO

Built 1935 Load: 32.7 t ADT: 6

COUNTY ROAD 16

Fair

Over: NORTH BUTTE CREEK

1 MI N OF CR F, Prowers, CO

Built 1936 Load: 32.7 t ADT: 8

COUNTY ROAD 28

Fair

Over: TWO BUTTES CREEK

1.2 MI S OF CR N, Prowers, CO

Built 1936 Load: 32.7 t ADT: 45

COUNTY ROAD 3

Fair

Over: CAT CREEK

1 MI S OF CR P, Prowers, CO

Built 1936 Load: 32.7 t ADT: 13

COUNTY ROAD KK

Fair

Over: BUFFALO CREEK

1.2 MI E OF SH 385, Prowers, CO

Built 1957 Load: 32.7 t ADT: 147

COUNTY ROAD L

Fair

Over: WEST FORK OF CLAY CREEK

3.2 MI E OF CR 3, Prowers, CO

Built 1973 Load: 32.7 t ADT: 30

CR 220/SQUIRREL CK

Fair

Over: SOUTH CREEK

Just west of SH 78, Pueblo, CO

Built 1916 Load: 32.7 t ADT: 72

CR 213/PENN. AVE.

Fair

Over: SQUIRREL CREEK

JUST N of Squirrel Ck Rd, Pueblo, CO

Built 1916 Load: 32.7 t ADT: 137

CR 218/CURTIS RD

Fair

Over: SOUTH CREEK

.1 MI N OF SH 78, Pueblo, CO

Built 1916 Load: 32.7 t ADT: 36

CO RD 65/South RD

Fair

Over: ST. CHARLES RIVER

6.6 MI SE OF PUEBLO, Pueblo, CO

Built 1924 Load: 32.7 t ADT: 963

CR277/KENNY POUNDS

Fair

Over: GRANEROS CREEK

4.6 MI ESE OF RYE, Pueblo, CO

Built 1916 Load: 32.7 t ADT: 21

CR 220/SQUIRREL CR

Fair

Over: SQUIRREL CREEK

1.7 MI SW OF BEULAH, Pueblo, CO

Built 1916 Load: 32.7 t ADT: 49

WM. M. WHITE BLVD.

Fair

Over: UNNAMED DRAW

2.5 MI E of SH47, Pueblo, CO

Built 1980 Load: 32.7 t ADT: 5,402

COUNTY ROAD 3

Fair

Over: UNNAMED DRAW

2.6 MI NE OF SH 50, Pueblo, CO

Built 2008 Load: 32.7 t ADT: 2,061

11TH STREET

Fair

Over: DRGWRR AT SFRY

JUST W OF GARNET, Pueblo, CO

Built 1965 Load: 32.7 t ADT: 3,816

CENTRAL AVE.

Fair

Over: BESSEMER DITCH

CORNER OF STONE/CENTRAL, Pueblo, CO

Built 1968 Load: 32.7 t ADT: 333

DILLON DR

Fair

Over: LOCAL DRAINAGE

0.15 MI S OF 29th ST, Pueblo, CO

Built 1975 Load: 32.7 t ADT: 1,535

DIVISION AVE.

Fair

Over: BESSEMER DITCH

CORNER OF DIVISION/STONE, Pueblo, CO

Built 1971 Load: 32.7 t ADT: 1,362

Showing 3,101-3,150 of 8,965 bridges

Related

All states → | National rankings → | Understanding conditions → | Retired SD term explained →
Data sourced from the FHWA National Bridge Inventory (NBI), latest released cycle. See our methodology for details. Retrieved and formatted by PlainBridges.

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). Poor condition is an inspection-record category, not a closure or unsafe-to-cross designation. Consult the bridge owner for current status.

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.

What to do with this

Use Colorado's inventory picture to drill to a county or a specific span.

  • Browse counties in Colorado and open the highest-Poor shares first. County list
  • See where this state sits among peers on Poor-condition share. State rankings
  • Compare this state with another jurisdiction on the same measures. State compare

NBI condition ratings are inventory snapshots, not live crossing-safety verdicts.

Every figure on PlainBridges is rendered directly from federal source data, no number is typed in by an editor. Colorado Good/Fair/Poor shares and county rollups on this page are computed from the same NBI extract as the national boards; no figure is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of 2024 NBI release. NBI condition categories reflect the latest reported inventory record, not a live safety, closure, or travel decision.