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

JEFFERSON ST

Fair

Over: SHOOKS RUN

0.15 E TEMPLETON GAP RD, El Paso, CO

Built 1965 Load: 99.9 t ADT: 216

Goddard St

Fair

Over: Pine Creek Trib

.08 Mi S of Kelly Johnson, El Paso, CO

Built 1995 Load: 99.9 t ADT: 2,500

ACADEMY BLVD

Fair

Over: PINE CREEK

0.1 MI E OF I25/AF ACADEM, El Paso, CO

Built 1998 Load: 99.9 t ADT: 25,111

DUBLIN BLVD

Fair

Over: COTTONWOOD CREEK TRIB

JUST EAST OF RANGEWOOD DR, El Paso, CO

Built 1998 Load: 99.9 t ADT: 13,163

AUSTIN BLUFFS PKWY

Fair

Over: COTTONWOOD CREEK TRIB

0.3 MI S OF DUBLIN BLVD, El Paso, CO

Built 1998 Load: 99.9 t ADT: 24,097

SH 64 ML

Fair

Over: STINKING WATER CREEK

2.7 MI NW OF RANGELY, Rio Blanco, CO

Built 1982 Load: 99.9 t ADT: 2,400

SH 64 ML

Fair

Over: DRAW

18 MILES W OF MEEKER, Rio Blanco, CO

Built 1948 Load: 99.9 t ADT: 670

QUINCY AVE

Fair

Over: GOLDSMITH GULCH

JUST NE OF TAMARAC STREET, Denver, CO

Built 1972 Load: 99.9 t ADT: 10,760

SH 157 ML

Fair

Over: SOUTH GOOSE CREEK

0.03 MI N OF PEARL ST, Boulder, CO

Built 1986 Load: 99.9 t ADT: 42,000

SH 157 ML

Fair

Over: NORTH GOOSE CREEK

0.05 MI N OF PEARL ST., Boulder, CO

Built 1986 Load: 99.9 t ADT: 42,000

I 25 ML serv. rd.

Fair

Over: DRAW

2.2 MI NO OF JCT SH 66, Weld, CO

Built 1961 Load: 99.9 t ADT: 72,000

I 25 ML

Fair

Over: DRAW

4.2 MI NO OF JCT SH 7, Weld, CO

Built 2004 Load: 99.9 t ADT: 102,000

I 76 ML

Fair

Over: DRAW

4 MI S OF JCT SH 52, Weld, CO

Built 1935 Load: 99.9 t ADT: 23,000

49TH AVENUE

Fair

Over: MONTBELLO DITCH

JUST WEST OF HAVANA, Denver, CO

Built 2001 Load: 99.9 t ADT: 1,932

48TH AVENUE

Fair

Over: MONTBELLO DITCH

JUST WEST OF HAVANA, Denver, CO

Built 2001 Load: 99.9 t ADT: 869

DUNKIRK STREET

Fair

Over: FIRST CREEK

JUST N OF 54TH AVENUE, Denver, CO

Built 2004 Load: 99.9 t ADT: 3,975

GRN VALLEY RNCH BL

Fair

Over: FIRST CREEK

0.3 MI WEST OF PICADILLY, Denver, CO

Built 1990 Load: 99.9 t ADT: 3,845

SB PENA BLVD

Fair

Over: LOCAL DRAINAGE

0.75 MI NORTH OF I-70, Denver, CO

Built 1992 Load: 99.9 t ADT: 61,445

NB PENA BLVD

Fair

Over: LOCAL DRAINAGE

0.75 MI NORTH OF I-70, Denver, CO

Built 1992 Load: 99.9 t ADT: 61,445

PENA BLVD

Fair

Over: SECOND CREEK

0.2 MI W OF 75TH AVE, Denver, CO

Built 1992 Load: 99.9 t ADT: 69,239

78TH AVE

Fair

Over: THIRD CREEK TRIB

JUST W OF JACKSON GAP RD, Denver, CO

Built 1992 Load: 99.9 t ADT: 18,020

BROADWAY

Fair

Over: UNNAMED DRAW

0.5 MILES SOUTH OF C-470, Douglas, CO

Built 1985 Load: 99.9 t ADT: 35,365

RAMPART RANGE ROAD

Fair

Over: LITTLE WILLOW CREEK

1.3 MI S OF WATERTON RD, Douglas, CO

Built 1985 Load: 99.9 t ADT: 5,248

MAXIMUS DR

Fair

Over: WILLOW CREEK

.1 MI WEST OF YOSEMITE ST, Douglas, CO

Built 1985 Load: 99.9 t ADT: 2,737

PARK MEADOWS DR

Fair

Over: WILLOW CREEK

0.2 MI NW OF YOSEMITE AVE, Douglas, CO

Built 1985 Load: 99.9 t ADT: 7,538

HIGHLANDS RAN PY

Fair

Over: MARCY GULCH

.3 MI SW OF LUCENT BLVD, Douglas, CO

Built 1986 Load: 99.9 t ADT: 25,364

COUNTY LINE RD

Fair

Over: BIG DRY CREEK

.3 MI WEST OF HOLLY, Douglas, CO

Built 2002 Load: 99.9 t ADT: 31,430

SH 139 ML

Fair

Over: DOUGLAS CREEK

14 MI S OF RANGELY, Rio Blanco, CO

Built 1990 Load: 99.9 t ADT: 620

I 70 ML

Fair

Over: CLEAR CREEK

EMPIRE, Clear Creek, CO

Built 1965 Load: 99.9 t ADT: 34,000

SH 58 ML

Fair

Over: ARAPAHOE DITCH

1.6 MI E OF JCT SH 93, Jefferson, CO

Built 1970 Load: 99.9 t ADT: 19,000

SH 93 ML

Fair

Over: LEYDEN GULCH

6.3 MILES N. SH 58, Jefferson, CO

Built 1999 Load: 99.9 t ADT: 17,000

SH 128 ML

Fair

Over: COAL CREEK

0.4 MI E OF JCT SH 93, Boulder, CO

Built 1967 Load: 99.9 t ADT: 4,100

SH 93 ML

Fair

Over: RALSTON RESERVOIR OVRFLW

5.3 MI N OF JCT SH 58, Jefferson, CO

Built 1984 Load: 99.9 t ADT: 19,000

E-470 ML

Fair

Over: Local Drainage

44.62 MI FROM I-25, Adams, CO

Built 2003 Load: 99.9 t ADT: 36,702

COUNTY ROAD 25

Fair

Over: KIOWA CREEK TRIB

7.6 MILES S OF COLO 86, Elbert, CO

Built 1979 Load: 99.9 t ADT: 40

COUNTY ROAD 98

Fair

Over: KIOWA CREEK

0.2 MI E OF ELBERT RD, Elbert, CO

Built 2002 Load: 99.9 t ADT: 103

FOX STREET

Fair

Over: SOUTHWEST GREENBELT

INTERSECTION FOX/STANFORD, Arapahoe, CO

Built 1960 Load: 99.9 t ADT: 6,225

HODGEN ROAD

Fair

Over: KIOWA CREEK

0.25 MI W OF EASTONVILLE, El Paso, CO

Built 1988 Load: 99.9 t ADT: 1,210

BAPTIST ROAD

Fair

Over: JACKSON CREEK

0.2 MI E OF I-25, El Paso, CO

Built 2012 Load: 99.9 t ADT: 17,866

CALHAN ROAD

Fair

Over: SPRING CREEK

.3 MI N OF BIG SPRINGS RD, El Paso, CO

Built 1992 Load: 99.9 t ADT: 60

FALCON HIGHWAY

Fair

Over: SQUIRREL CREEK

.5 MI E OF J D JOHNSON RD, El Paso, CO

Built 1989 Load: 99.9 t ADT: 1,736

GARRETT ROAD

Fair

Over: WEST FORK SQUIRREL CREEK

JUST E OF CONDOR ROAD, El Paso, CO

Built 1983 Load: 99.9 t ADT: 901

BRADLEY ROAD

Fair

Over: LOCAL DRAINAGE

.2 MI WEST OF GRINELL, El Paso, CO

Built 1999 Load: 99.9 t ADT: 3,607

MERIDIAN ROAD

Fair

Over: W KIOWA CREEK TRIB

0.4 MI N OF WALKER ROAD, El Paso, CO

Built 1991 Load: 99.9 t ADT: 277

EASTONVILLE RD

Fair

Over: KIOWA CREEK

0.4 MI N OF HODGEN ROAD, El Paso, CO

Built 1988 Load: 99.9 t ADT: 257

BIG SPRINGS RD

Fair

Over: BIG SPRING CREEK

0.1 MI W OF CALHAN ROAD, El Paso, CO

Built 1992 Load: 99.9 t ADT: 91

HANDLE ROAD

Fair

Over: SQUIRREL CREEK

.33 MI W OF ELLICOTT HWY, El Paso, CO

Built 1991 Load: 99.9 t ADT: 68

EURICH ROAD

Fair

Over: BIG SANDY CREEK

2.87 MI N OF MCCLASKEY RD, El Paso, CO

Built 1995 Load: 99.9 t ADT: 51

POWERS BLVD

Fair

Over: FOUNTAIN DITCH

1.1 MI S FONTAINE BLVD, El Paso, CO

Built 2000 Load: 99.9 t ADT: 1,587

STRUTHERS RD

Fair

Over: BEAVER CREEK

1.2 MI N OF NORTH GATE RD, El Paso, CO

Built 2004 Load: 99.9 t ADT: 8,279

Showing 5,201-5,250 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.