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

WOODMEN ROAD

Fair

Over: COTTONWOOD CREEK

W OF AUSTIN BLUFFS PKWY, El Paso, CO

Built 2000 Load: 47.4 t ADT: 36,527

13TH AVE

Fair

Over: SOUTH PLATTE RIVER

JUST WEST OF ZUNI STREET, Denver, CO

Built 1988 Load: 47.4 t ADT: 5,825

US 50 BUS

Fair

Over: ST CHARLES RIVER

9.3 MI WEST OF JCT US 50, Pueblo, CO

Built 2010 Load: 47.4 t ADT: 5,200

I 70 SERVICE RD

Fair

Over: DRAW SR

36.2 MI E OF JCT SH 65, Garfield, CO

Built 1954 Load: 47.5 t ADT: 1,162

I 70 ML EBND

Fair

Over: KIOWA CREEK

0.7 MI E OF JCT SH 79, Arapahoe, CO

Built 1991 Load: 47.5 t ADT: 10,500

Riverview Avenue

Fair

Over: Upper Platte Beaver Cana

0.5 Mi E of Co Rd 19, Morgan, CO

Built 1965 Load: 47.5 t ADT: 7,708

County Road 50

Fair

Over: Local Drainage

0.1 Mi E of Co Rd 13, Weld, CO

Built 1999 Load: 47.5 t ADT: 4,017

EAGLE STREET

Fair

Over: SABLE DITCH

E OF SABLE AND S OF 23R, Adams, CO

Built 1981 Load: 47.6 t ADT: 136

I 25 ML NBND

Fair

Over: FLOOD DRAINAGE

2.5 MI N OF JCT SH 14, Larimer, CO

Built 1950 Load: 47.6 t ADT: 14,000

US 34 ML

Fair

Over: LOVELAND-GREELEY CANAL

2 MI W OF GREELEY, Weld, CO

Built 1967 Load: 47.6 t ADT: 32,000

US 50 ML WBND

Fair

Over: CHICO CREEK

4.7 MI E OF JCT SH 231 S, Pueblo, CO

Built 1953 Load: 47.6 t ADT: 4,300

US 50 ML EBND

Fair

Over: CHICO CREEK

0.4 MI W OF JCT SH 96 E, Pueblo, CO

Built 1953 Load: 47.6 t ADT: 4,300

US 50 ML

Fair

Over: ARKANSAS RIVER

4.6 MI E OF JCT SH 385, Prowers, CO

Built 1975 Load: 47.6 t ADT: 1,900

SH 14 ML

Fair

Over: CACHE LA POUDRE DITCH 2

2.6 MI E OF JCT US 287, Larimer, CO

Built 1967 Load: 47.7 t ADT: 32,000

CR124E-Hummer Dr.

Fair

Over: North Boulder Creek

1.2 Mi NE of St Hwy 73, Boulder, CO

Built 1994 Load: 47.7 t ADT: 135

6TH STREET

Fair

Over: CLEAR CREEK

W OF ARGENTINE ST, Clear Creek, CO

Built 1990 Load: 47.7 t ADT: 348

COUNTY RD 22.0

Fair

Over: FRIJOLE CREEK

1MI E OF CR 85.5, Las Animas, CO

Built 1995 Load: 47.7 t ADT: 42

COUNTY ROAD S

Fair

Over: RUSH CREEK

0.3 MI WEST OF ROAD 43, Lincoln, CO

Built 1994 Load: 47.7 t ADT: 21

SH14ML/FRONTAGE RD

Fair

Over: CACHE LA POUDRE DITCH 2

1.8 MI E OF JCT US 287, Larimer, CO

Built 1967 Load: 47.8 t ADT: 33,000

SH 7 ML

Fair

Over: NORTH ST VRAIN CREEK

IN LYONS, Boulder, CO

Built 1955 Load: 47.8 t ADT: 2,600

I 225 ML SBND

Fair

Over: TAMARAC PARKWAY

0.7 MI E OF I25, Denver, CO

Built 1975 Load: 47.8 t ADT: 64,000

Alan Hamel Ave

Fair

Over: LAKE ELIZABETH

Alan Hamel Ave and Main, Pueblo, CO

Built 1998 Load: 47.8 t ADT: 2,625

MAIN STREET

Fair

Over: LAKE ELIZABETH

0.1 MI NE D ST/River Walk, Pueblo, CO

Built 1998 Load: 47.8 t ADT: 6,631

US 160 ML

Fair

Over: VACHITA CREEK

29 miles West of Kim, Las Animas, CO

Built 1958 Load: 47.9 t ADT: 150

MILLER STREET

Fair

Over: LENA GULCH

JUST SOUTH OF 38TH AVE, Jefferson, CO

Built 1981 Load: 47.9 t ADT: 243

PIKES PEAK AVENUE

Fair

Over: SHOOKS RUN

NEAR EL PASO STREET, El Paso, CO

Built 2003 Load: 48.0 t ADT: 15,976

I 25 ML

Fair

Over: JACKSON CREEK

7.4 MI N OF JCT SH 18 ML, El Paso, CO

Built 1953 Load: 48.0 t ADT: 91,000

HUDSON ROAD

Fair

Over: COYOTE RUN

.6 MI N OF 26TH AVENUE, Adams, CO

Built 1960 Load: 48.1 t ADT: 993

QUEBEC ST

Fair

Over: HIGHLINE CANAL

QUEBEC ST AT WESLEY AVE, Denver, CO

Built 1981 Load: 48.1 t ADT: 22,939

US 50 FRONTAGE RD

Fair

Over: SAND CREEK SR

IN CANYON CITY, Fremont, CO

Built 1993 Load: 48.1 t ADT: 16

County Road 25

Fair

Over: Muddy Creek

.4 Mi E US 40/N of Resvr, Grand, CO

Built 1996 Load: 48.2 t ADT: 22

COUNTY ROAD 59

Fair

Over: WHITE WOMAN CREEK

.1 MI S OF CR F, Cheyenne, CO

Built 1990 Load: 48.2 t ADT: 10

COUNTY ROAD 67

Fair

Over: EIGHT MILE CREEK

4.9 MI N OF CR 123, Fremont, CO

Built 1938 Load: 48.2 t ADT: 45

US 6 ML

Fair

Over: CLEAR CREEK

2.4MI E OF JCT I70, Clear Creek, CO

Built 1992 Load: 48.3 t ADT: 5,600

SH 115 ML

Fair

Over: SAND CREEK

2.5 MI N OF JCT US 50, Fremont, CO

Built 1923 Load: 48.3 t ADT: 4,100

County Road 9

Fair

Over: South Platte River

1.3 Mi N of Co Rd W, Morgan, CO

Built 2003 Load: 48.3 t ADT: 159

E 5TH STREET

Fair

Over: COAL CREEK

JUST E OF SH 67/PIKES, Fremont, CO

Built 2000 Load: 48.4 t ADT: 377

US 24 ML

Fair

Over: DRAW

IN SIMLA, Elbert, CO

Built 1936 Load: 48.4 t ADT: 3,700

SH 47 ML NBND

Fair

Over: TROY AVE

2.4 MI EAST OF JCT I25, Pueblo, CO

Built 1978 Load: 48.4 t ADT: 8,000

County Road 23

Fair

Over: Pawnee Creek

0.9 Mi N of Co Rd 20.5, Logan, CO

Built 2005 Load: 48.4 t ADT: 20

CR DS.6 KANNAH CK

Fair

Over: KANNAH CREEK

E OF MP10 ON KANNAH CK RD, Mesa, CO

Built 1982 Load: 48.4 t ADT: 29

CR. 55R/GEYSER DR

Fair

Over: SAN MIGUEL RIVER

.1 MI W OF SH 145, San Miguel, CO

Built 1989 Load: 48.4 t ADT: 17

PECOS ST.

Fair

Over: BNSF MAINLIN /W 59TH AVE

0.2 MI S. OF I-76, Adams, CO

Built 2012 Load: 48.5 t ADT: 2,325

SH 7 ML

Fair

Over: SOUTH BOULDER CREEK

IN BOULDER, Boulder, CO

Built 1938 Load: 48.5 t ADT: 25,000

US 50 ML

Fair

Over: DRAW

2.9 MI E OF JCT SH 115, Fremont, CO

Built 1949 Load: 48.5 t ADT: 19,000

County Road 30.4

Fair

Over: Lodgepole Creek

0.2 M. E. of Co. Rd. 27-9, Sedgwick, CO

Built 2001 Load: 48.5 t ADT: 31

PEAKVIEW AVENUE

Fair

Over: COTTONWOOD CREEK

.1 MI W OF LIMA ST, Arapahoe, CO

Built 1984 Load: 48.6 t ADT: 4,487

SH 72 ML

Fair

Over: COAL CREEK

2.3 MI W OF JCT SH 93, Jefferson, CO

Built 1939 Load: 48.6 t ADT: 5,100

I 270 EBND ML

Fair

Over: I25NB/I25HOV/WB I 270

SBND I25 & EBND I270, Adams, CO

Built 2009 Load: 48.6 t ADT: 18,000

COUNTY ROAD

Fair

Over: I 70 ML

4.5MI E OF RIFLE, Garfield, CO

Built 1977 Load: 48.6 t ADT: 2,053

Showing 4,651-4,700 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.