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

HOLLAND STREET

Good

Over: McINRYRE GULCH

0.5 MI N OF CEDAR AVE, Jefferson, CO

Built 2021 Load: 68.4 t ADT: 4,034

WAYNOKA ROAD

Good

Over: SAND CREEK

0.2 MI. NE OF POWERS BLVD, El Paso, CO

Built 2004 Load: 68.5 t ADT: 3,395

SH 16 ML

Good

Over: OVERFLOW CHANNEL

0.2 mi E of Jct US 85, El Paso, CO

Built 1988 Load: 68.5 t ADT: 32,000

SH 83 ML

Good

Over: DRAW

13.7 MI NO OF JCT SH 86, Arapahoe, CO

Built 1978 Load: 68.8 t ADT: 41,000

72ND AVENUE

Good

Over: PEDESTRIAN PATH

0.2 MI WEST OF CARR ST, Jefferson, CO

Built 2004 Load: 68.9 t ADT: 13,101

46TH AVENUE

Good

Over: PEDESTRIAN WALKWAY

BTWN COLISEUM-STOCK SHOW, Denver, CO

Built 2002 Load: 68.9 t ADT: 3,805

SH 96 ML

Good

Over: HARDSCRABBLE CREEK

IN WETMORE, Custer, CO

Built 1991 Load: 68.9 t ADT: 1,000

TITAN ROAD

Good

Over: HIGHLINE CANAL

JUST E OF WILDLIFE WAY, Douglas, CO

Built 1998 Load: 69.2 t ADT: 10,871

N 115th St

Good

Over: Highland Ditch

0.95 Mi N of Vermillion R, Boulder, CO

Built 2012 Load: 69.3 t ADT: 435

Wagonwheel Gap Rd

Good

Over: Four Mile Creek

0.6 Mi W of Lee Hill Rd, Boulder, CO

Built 2019 Load: 69.7 t ADT: 587

COUNTY ROAD W

Good

Over: N FORK OF SMOKEY HILL R.

.2 MI E OF SH 385, Cheyenne, CO

Built 1993 Load: 69.7 t ADT: 33

I 70 ML EBND

Good

Over: FRENCH CREEK

3 MI E OF SHOSHONE DAM, Garfield, CO

Built 1991 Load: 69.7 t ADT: 8,500

US 287 ML

Good

Over: BIG DRY CREEK

120th AVE. W. of FEDERAL, Adams, CO

Built 1987 Load: 69.9 t ADT: 41,000

SH 125 ML

Good

Over: ILLINOIS RIVER

0.7 MI NORTH OF JCT SH 14, Jackson, CO

Built 1993 Load: 70.4 t ADT: 2,200

COUNTY ROAD 51

Good

Over: SAND ARROYO

0.4 MI S OF CR DD, Baca, CO

Built 1986 Load: 70.6 t ADT: 4

WATERTON ROAD

Good

Over: BRUSH CREEK

0.1 MI S OF SH 75, Jefferson, CO

Built 2019 Load: 70.6 t ADT: 11,043

KIPLING STREET

Good

Over: FARMERS HIGHLINE CANAL

.15 MI NORTH OF 72ND AVE, Jefferson, CO

Built 2001 Load: 70.8 t ADT: 15,571

County Road 70

Good

Over: North Poudre Canal

0.8 Mi E of Co Rd 15, Larimer, CO

Built 1989 Load: 70.8 t ADT: 5,556

US 40 ML

Good

Over: ELKHEAD RIVER

6.4 MI EAST OF JCT SH13, Moffat, CO

Built 1992 Load: 70.9 t ADT: 4,200

US 50 ML

Good

Over: Patterson Hollow

3 ME W OF ROCK FORD, Otero, CO

Built 2001 Load: 70.9 t ADT: 5,600

104TH AVE

Good

Over: I 25 ML

IN NORTHGLENN, Adams, CO

Built 2009 Load: 71.0 t ADT: 31,113

WASHINGTON STREET

Good

Over: LOCAL DRAINAGE

0.5 MI N OF 136TH AVE, Adams, CO

Built 2010 Load: 71.0 t ADT: 12,021

SH 64 ML

Good

Over: WESTERN FUELS RR

6 MI SE OF DINOSAUR, Rio Blanco, CO

Built 1983 Load: 71.3 t ADT: 1,000

HOLTWOOD ROAD

Good

Over: HORSE CREEK

0.7 MI N OF CORONA ROAD, El Paso, CO

Built 2017 Load: 71.3 t ADT: 55

EB Harmony Road

Good

Over: Fossil Crk Res. Inlet

.7 MI west of JCT-I25, Larimer, CO

Built 2010 Load: 71.3 t ADT: 24,693

SH 71 ML

Good

Over: HIGHLINE CANAL

1.1 MI NO OF JCT SH 10, Otero, CO

Built 2021 Load: 71.3 t ADT: 510

Otter Road

Good

Over: Loutsenhizer Canal

0.1 Mi E of Hwy 550, Montrose, CO

Built 2019 Load: 71.3 t ADT: 787

SH 17 ML

Good

Over: LOS PINOS RIVER

9 MI NE OF NEW MEXICO S.L, Conejos, CO

Built 1967 Load: 71.3 t ADT: 420

VALENTIA ST

Good

Over: HIGHLINE CANAL

.5 MI N MISSISSIPPI AVE, Denver, CO

Built 1995 Load: 71.5 t ADT: 6,297

County Road 17

Good

Over: Poudre Valley Canal

0.5 Mi N of Co Rd 64, Larimer, CO

Built 1983 Load: 72.1 t ADT: 86

EAST LAS VEGAS ST

Good

Over: COLONY HILLS CANAL

0.45 MI N OF HWY 85-87, El Paso, CO

Built 2020 Load: 72.3 t ADT: 6,535

SH 9 ML

Good

Over: SEYMOUR GULCH

12.1 MI NW OF JCT US 50, Fremont, CO

Built 1960 Load: 72.3 t ADT: 1,200

COUNTY ROAD 58

Good

Over: BIG CREEK

0.1 MI E OF CR ME.75, Mesa, CO

Built 2023 Load: 72.6 t ADT: 147

US 6 ML

Good

Over: DRAW SR

14.9 MI NE OF MESA-GARFIE, Garfield, CO

Built 1954 Load: 72.7 t ADT: 680

COUNTY RD 44.0

Good

Over: CANYON DEL AGUA CREEK

5.0 MI W OF CR 61.5, Las Animas, CO

Built 1994 Load: 72.7 t ADT: 37

SH 72 ML

Good

Over: COAL CREEK

5.7 MI NW OF JCT SH 93, Jefferson, CO

Built 2020 Load: 72.9 t ADT: 5,100

County Road 32

Good

Over: Upper Highland Ditch

0.3 Miles W of CR 7, Weld, CO

Built 2021 Load: 72.9 t ADT: 1,470

PINON ROAD

Good

Over: FARM ROAD A

2 MI NE EXIT 110 off I-25, Pueblo, CO

Built 2004 Load: 72.9 t ADT: 217

FALCON HIGHWAY

Good

Over: BRANCH SQUIRREL CREEK

0.1 MI E OF ABILENE DRIVE, El Paso, CO

Built 1995 Load: 73.3 t ADT: 2,048

I25 W FRONTAGE RD.

Good

Over: CHANNEL MD-B SR

NW CORNER DACANO INT, Weld, CO

Built 2000 Load: 73.4 t ADT: 5,938

PEORIA STREET

Good

Over: LOCAL DRAINAGE

.6 MI NORTH OF E470, Douglas, CO

Built 1996 Load: 73.4 t ADT: 4,514

SYLVAN LAKE ROAD

Good

Over: ABRAMS CREEK

JUST WEST OF LIME PARK DR, Eagle, CO

Built 2001 Load: 73.7 t ADT: 1,796

County Road 73

Good

Over: White River

0.2 Mi N of St Hwy 64, Rio Blanco, CO

Built 2021 Load: 73.9 t ADT: 21

SB PENA BLVD

Good

Over: THIRD CREEK

3.5 MI EAST OF E-470, Denver, CO

Built 1992 Load: 74.3 t ADT: 55,210

HAVANA ST

Good

Over: SAND CREEK

0.3 MI S OF SMITH ROAD, Denver, CO

Built 1989 Load: 74.4 t ADT: 13,787

US 36 ML

Good

Over: DRAW

0.5 MI E OF JCT I 70, Arapahoe, CO

Built 2022 Load: 74.5 t ADT: 3,500

SH 69 ML

Good

Over: ANTELOPE CREEK

9 MI S. WESTCLIFFE, Custer, CO

Built 2012 Load: 74.5 t ADT: 720

SH 101 ML

Good

Over: DRAW

5.7 MI SO OF JCT US 50, Bent, CO

Built 2013 Load: 74.5 t ADT: 250

27th Way

Good

Over: Skunk Creek

0.2 Mi No of St Hwy 93, Boulder, CO

Built 2008 Load: 74.8 t ADT: 10,468

58TH AVENUE

Good

Over: RALSTON CREEK

JUST E OF LAMAR STREET, Jefferson, CO

Built 1996 Load: 74.9 t ADT: 10,681

Showing 8,301-8,350 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.