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

SOUTHMOOR DRIVE

Fair

Over: CRUSE GULCH

.3 MI NW OF SH85/16 INTER, El Paso, CO

Built 1990 Load: 36.0 t ADT: 939

OLD PUEBLO ROAD

Fair

Over: JIMMY CAMP CREEK

0.7 MI S OF OHIO STREET, El Paso, CO

Built 1992 Load: 36.0 t ADT: 6,061

I 70 ML

Fair

Over: HORSETHIEF CREEK

JUST E. OF DEBEQUE INTERC, Mesa, CO

Built 1980 Load: 36.0 t ADT: 18,000

US 40 ML

Fair

Over: WILD HORSE CREEK

IN KIT CARSON, Cheyenne, CO

Built 1987 Load: 36.0 t ADT: 4,500

US 50 ML

Fair

Over: LAMAR CANAL

1.4 MI E OF JCT US 287, Prowers, CO

Built 1987 Load: 36.0 t ADT: 2,200

SH 12 ML

Fair

Over: PURGATOIRE RIVER

Just E. of I25 inTrinidad, Las Animas, CO

Built 2005 Load: 36.0 t ADT: 9,400

County Road 29

Fair

Over: Collins Lateral Canal

0.7 Mi N of Co Rd 80, Weld, CO

Built 2013 Load: 36.0 t ADT: 1,126

County Road 50

Fair

Over: Latham Ditch

0.2 Mi E of Co Rd 57, Weld, CO

Built 2010 Load: 36.0 t ADT: 438

PARK AVENUE

Fair

Over: BLUE RIVER

JUST WEST OF SH 9, Summit, CO

Built 1985 Load: 36.1 t ADT: 10,668

GALLEY ROAD

Fair

Over: SAND CREEK

0.25 MI W OF POWERS BLVD., El Paso, CO

Built 1993 Load: 36.1 t ADT: 16,074

US 6 ML

Fair

Over: UP RR

IN COMMERCE CITY, Adams, CO

Built 1950 Load: 36.1 t ADT: 40,000

SQUIRREL CRK RD

Fair

Over: TRIB. OF WILLIAMS CREEK

4.8 MI E OF LINK ROAD, El Paso, CO

Built 1969 Load: 36.1 t ADT: 551

SQUIRREL CRK RD

Fair

Over: CHICO CREEK

0.3 MI W OF MILNE RD, El Paso, CO

Built 1965 Load: 36.1 t ADT: 549

HANOVER ROAD

Fair

Over: WILLIAMS CREEK

3.0 MI SE OLD PUEBLO RD, El Paso, CO

Built 1965 Load: 36.1 t ADT: 553

County Road 5

Fair

Over: Sullivan Ditch

100 FT N of St Hwy 52, Weld, CO

Built 1978 Load: 36.1 t ADT: 774

COUNTY RD 41.7

Fair

Over: SARCILLO CANYON CREEK

3.9 MI N OF SH 12, Las Animas, CO

Built 1993 Load: 36.1 t ADT: 161

County Road 18

Fair

Over: Home Supply Ditch

0.6 Mi E of Co Rd 23E, Larimer, CO

Built 1993 Load: 36.1 t ADT: 1,738

County Road T.9

Fair

Over: Wildcat Creek

0.7 Mi E of Co Rd 24, Morgan, CO

Built 1984 Load: 36.1 t ADT: 138

CR 209/N CK CUT OF

Fair

Over: MIDDLE CREEK

IN BEULAH, Pueblo, CO

Built 1996 Load: 36.1 t ADT: 48

County Road 17

Fair

Over: Loveland Greeley Canal

.9 MI North of CR 54, Weld, CO

Built 2006 Load: 36.1 t ADT: 2,676

SH 14 ML WBND

Fair

Over: I 25 ML

I-25 MULBERRY INTERCHANGE, Larimer, CO

Built 1966 Load: 36.2 t ADT: 17,500

I 76 ML WBND

Fair

Over: I 76 BUSS RT

Keenesburg Interchange, Weld, CO

Built 1961 Load: 36.2 t ADT: 8,000

RAILROAD AV

Fair

Over: COLORADO RIVER

0.2 MI N OF JCT I70, Garfield, CO

Built 1976 Load: 36.2 t ADT: 16,434

US 40 ML

Fair

Over: DRAW

2.4 MI SE OF DEERTRAIL, Arapahoe, CO

Built 1931 Load: 36.2 t ADT: 300

US 491 ML

Fair

Over: DRAW

5.9 MI NW OF CAHONE, Dolores, CO

Built 1937 Load: 36.2 t ADT: 3,400

COUNTY ROAD 2

Fair

Over: UNNAMED DRAINAGE

0.1 MI S OF CR K, Prowers, CO

Built 1987 Load: 36.2 t ADT: 9

County Road 1

Fair

Over: Blue River

0.75 Mi West of St Hwy 9, Grand, CO

Built 1990 Load: 36.3 t ADT: 1,259

COUNTY ROAD 22.4

Fair

Over: CULEBRA CREEK

BETWEEN CRL.7 AND M.5, Costilla, CO

Built 1990 Load: 36.3 t ADT: 19

MARK DABLING BLVD

Fair

Over: MONUMENT CREEK

JUST SW OF I-25/WOODMEN R, El Paso, CO

Built 1987 Load: 36.3 t ADT: 1,639

PIKES PEAK TOLL RD

Fair

Over: RESERVOIR SPILLWAY

AT MILE POST 6.5, El Paso, CO

Built 1993 Load: 36.3 t ADT: 2,246

I 76 ML WBND

Fair

Over: SH 95 ML

4.1 MI WEST OF I-25, Jefferson, CO

Built 1986 Load: 36.3 t ADT: 39,500

I 70 ML

Fair

Over: FUTURE UP RR

.04 MI W of HAVANA, Denver, CO

Built 2017 Load: 36.3 t ADT: 205,000

I 70 ML WBND

Fair

Over: DEER PARK DEPRESSION

JUST W/OF GRIZZLY CRK INT, Garfield, CO

Built 1984 Load: 36.3 t ADT: 8,500

I 70 ML EBND

Fair

Over: US 6 RR EAGLE RIVER

2.3 MI E OF JCT SH 131, Eagle, CO

Built 1970 Load: 36.3 t ADT: 13,000

I 25 ML

Fair

Over: 13TH AVE

IN DENVER, Denver, CO

Built 1956 Load: 36.3 t ADT: 235,000

SH 6 M FRONTAGE RD

Fair

Over: I 70 ML

3.6 MI E OF PARACHUTE, Garfield, CO

Built 1981 Load: 36.3 t ADT: 671

I 25 ML

Fair

Over: US 50 BUS. RTE.

IN PUEBLO I25/Santa Fe, Pueblo, CO

Built 1958 Load: 36.3 t ADT: 51,000

I 25 ML NBND

Fair

Over: INDIANA AVE

IN PUEBLO, Pueblo, CO

Built 1956 Load: 36.3 t ADT: 17,000

LITTLETON BLVD

Fair

Over: BIG DRY CREEK

.3 MI E OF BROADWAY, Arapahoe, CO

Built 1986 Load: 36.3 t ADT: 1,656

US 160 ML

Fair

Over: PASS CREEK

6 MI E OF WOLF CREEK PASS, Mineral, CO

Built 1987 Load: 36.3 t ADT: 2,900

CR 19/SMITH HILL

Fair

Over: ROARING FORK RIVER

0.3 MI E OF STATE HWY 82, Pitkin, CO

Built 1986 Load: 36.3 t ADT: 5,075

US 287 ML

Fair

Over: DRAW CATTLE UNDERPASS

16.7 MILES NORTH OF TEDS, Larimer, CO

Built 1961 Load: 36.4 t ADT: 3,900

COUNTY ROAD CC

Fair

Over: MONTE VISTA CANAL

AT CR CC AND CR 11, Conejos, CO

Built 1992 Load: 36.4 t ADT: 47

I 76 ML

Fair

Over: BURLINGTON CANAL

.3 MI W. OF JCT SH2, Adams, CO

Built 1957 Load: 36.4 t ADT: 33,000

SYRACUSE STREET

Fair

Over: LOCAL DRAINAGE

AT MESA RIDGE PARKWAY, El Paso, CO

Built 1997 Load: 36.4 t ADT: 3,459

SH 391 ML NBND

Fair

Over: BEAR CREEK

KIPLING 0.6 MI N OF US285, Jefferson, CO

Built 1982 Load: 36.4 t ADT: 18,000

SH 391 ML SBND

Fair

Over: BEAR CREEK

IN LAKEWOOD, Jefferson, CO

Built 1982 Load: 36.4 t ADT: 18,000

US 85 ML

Fair

Over: MARCEY GULCH

.56 MI S of JCT SH 470, Douglas, CO

Built 1948 Load: 36.4 t ADT: 32,000

LOCAL RD. 60.30

Fair

Over: I70 ML

BORDER OF CO/KS, Kit Carson, CO

Built 1969 Load: 36.4 t ADT: 22

COUNTY ROAD 35

Fair

Over: LAKE FORK GUNNISON RIVER

10.6 MI SW OF LAKE CITY, Hinsdale, CO

Built 1997 Load: 36.4 t ADT: 75

Showing 3,651-3,700 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.