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

COUNTY ROAD 67

Fair

Over: SOUTH PLATTE RIVER

INT OF CO RDS 67 & 97, Jefferson, CO

Built 1978 Load: 24.7 t ADT: 721

SH 86 ML

Fair

Over: CHERRY CREEK

WEST EDGE OF FRANKTOWN, Douglas, CO

Built 1975 Load: 24.7 t ADT: 10,000

I 25 SERVICE RD

Fair

Over: EAST PLUM CREEK SR

6.5 MI. N. OF SH 105, Douglas, CO

Built 1964 Load: 24.7 t ADT: 500

SH 115 ML

Fair

Over: ARKANSAS RIVER

0.4 MI N OF JCT SH 120, Fremont, CO

Built 1951 Load: 24.7 t ADT: 4,500

I 25 ML SBND

Fair

Over: RUGBY ARROYO

2.7 MI S OF JCT US160, Las Animas, CO

Built 1959 Load: 24.7 t ADT: 5,500

US 160 ML

Fair

Over: TOBE CREEK

18 miles West of Kim, Las Animas, CO

Built 1934 Load: 24.7 t ADT: 130

County Road 21

Fair

Over: Sandy Creek

0.4 Mi No of Co Rd 14, Phillips, CO

Built 1993 Load: 24.7 t ADT: 65

County Road 70

Fair

Over: Lone Tree Creek

0.1 Mi E of Co Rd 43, Weld, CO

Built 1988 Load: 24.7 t ADT: 259

Jackson Street

Fair

Over: N. Fork Republican River

0.1 M south of SH 34, Yuma, CO

Built 1996 Load: 24.7 t ADT: 1,702

County Road JJ

Fair

Over: Hell Creek

1.5 Mi. N. of Co. Rd. 28, Washington, CO

Built 1987 Load: 24.7 t ADT: 16

MURRAY BOULEVARD

Fair

Over: WEST FORK SAND CREEK

.35 S OF PALMER PARK BLVD, El Paso, CO

Built 1993 Load: 24.8 t ADT: 10,930

BARNES ROAD EB

Fair

Over: SAND CREEK

0.8 MI E OF POWERS BLVD., El Paso, CO

Built 1985 Load: 24.8 t ADT: 8,492

SERVICE ROAD

Fair

Over: MILL CREEK SR

3.1 MI E OF JCT US 40, Clear Creek, CO

Built 1934 Load: 24.8 t ADT: 36,000

US 550 ML

Fair

Over: CUTLER CREEK

3 MI N OF OURAY, Ouray, CO

Built 1938 Load: 24.8 t ADT: 4,800

US 287 ML

Fair

Over: SANTANA CANAL

6.6 MI N OF SH 196, Prowers, CO

Built 1978 Load: 24.8 t ADT: 3,100

SH 141 ML

Fair

Over: MONUMENT CREEK

0.5 MI NO OF JCT US 666 M, Dolores, CO

Built 1960 Load: 24.8 t ADT: 460

COUNTY ROAD 16

Fair

Over: OTERO CANAL

.2 MI S OF CR GG, Otero, CO

Built 1964 Load: 24.8 t ADT: 188

COUNTY ROAD 30

Fair

Over: FORT LYON STORAGE CANAL

500 FEET NW CR 808, Otero, CO

Built 1998 Load: 24.8 t ADT: 14

County Road 6

Fair

Over: Granby Dam Spillway

7.1 mi N of Granby CO, Grand, CO

Built 1950 Load: 24.9 t ADT: 400

MILITARY RES BNDRY

Fair

Over: Young Hollow

700 ft NE of Int. w/Rt. 8, El Paso, CO

Built 1973 Load: 24.9 t ADT: 100

FOREST ROAD 709

Fair

Over: ANTHRACITE CREEK

19.6 MI WNW CRESTED BUTTE, Gunnison, CO

Built 1979 Load: 24.9 t ADT: 30

US 138 ML

Fair

Over: PETERSON CANAL

0.2 MI NE OF JCT SH 59, Sedgwick, CO

Built 1930 Load: 24.9 t ADT: 720

JASPER / BATAVIA

Fair

Over: SABLE DITCH

.2 MI N OF COLFAX, Adams, CO

Built 1981 Load: 24.9 t ADT: 1,809

COUNTY ROAD 66

Fair

Over: I 25 ML

1.5 MI N OF SH 1, Larimer, CO

Built 1967 Load: 24.9 t ADT: 704

MAIN STREET

Fair

Over: PLATEAU CREEK

.1 MI S OF CR 330E, Mesa, CO

Built 1988 Load: 24.9 t ADT: 1,216

Creekside Drive

Fair

Over: Rifle Creek

0.3 Mi E of RR Ave Rifle, Garfield, CO

Built 2006 Load: 24.9 t ADT: 36

PEYTON HIGHWAY

Fair

Over: W FK BLK SQUIRREL CK

2.1 MI SOUTH OF SH 94, El Paso, CO

Built 1994 Load: 24.9 t ADT: 416

CENTENNIAL PARKWAY

Fair

Over: RIFLE CREEK

.4 MI WEST OF RR AVE, Garfield, CO

Built 1954 Load: 24.9 t ADT: 5,007

I 225 ML

Fair

Over: DRAW

IN AURORA, Adams, CO

Built 1964 Load: 24.9 t ADT: 121,000

SH 2 ML

Fair

Over: HIGHLINE CANAL

WELLSHIRE GOLF COURSE, Denver, CO

Built 1958 Load: 24.9 t ADT: 20,000

I 25 ML

Fair

Over: SH 88 ML W./BELLEVIEW

BELLEVIEW & I25, Arapahoe, CO

Built 1958 Load: 24.9 t ADT: 246,000

I 70 SERVICE RD

Fair

Over: DRAW SR

7.4 MI E OF JCT DEERTRAIL, Elbert, CO

Built 1939 Load: 24.9 t ADT: 11,000

US 40 ML

Fair

Over: DRAW

1.2 MI E OF SH 94 AROYA, Cheyenne, CO

Built 1937 Load: 24.9 t ADT: 3,300

SH 114 ML

Fair

Over: COCHETOPA CREEK

17.6 MI SE OF JCT US 50, Saguache, CO

Built 1950 Load: 24.9 t ADT: 470

SH 69 ML

Fair

Over: ROGERS GULCH

20.3 MI N OF WESTCLIFFE, Fremont, CO

Built 1947 Load: 24.9 t ADT: 420

US 50 ML WBND

Fair

Over: WILLIAMS CREEK

15.5 MI E OF FREMONT-PUEB, Pueblo, CO

Built 1925 Load: 24.9 t ADT: 18,000

US 50 BUS EBND

Fair

Over: ARKANSAS RIVER

0.9 MI S of 1ST ST, Pueblo, CO

Built 1924 Load: 24.9 t ADT: 9,000

SH 45 ML LAKE AVE

Fair

Over: I 25 ML

S. END OF PUEBLO, Pueblo, CO

Built 1963 Load: 24.9 t ADT: 20,000

County Road 32

Fair

Over: N. Sterling Inlet Canal

0.8 Mi. E. of Co. Rd. 31, Logan, CO

Built 1999 Load: 24.9 t ADT: 93

County Road 17

Fair

Over: Little Thompson River

0.7 Mi N of Co Rd 2E, Larimer, CO

Built 1986 Load: 24.9 t ADT: 962

County Road 34

Fair

Over: Platte Valley Canal

0.2 Mi E of US Hwy 85, Weld, CO

Built 1974 Load: 24.9 t ADT: 134

County Road 35

Fair

Over: New Cache La Poudre Cana

0.1 Mi S of SH 392, Weld, CO

Built 2005 Load: 24.9 t ADT: 2,207

104TH AVENUE

Fair

Over: FARMERS HIGHLINE CANAL

0.4 MILE EAST OF SHERIDAN, Adams, CO

Built 1967 Load: 24.9 t ADT: 18,066

64TH AVENUE

Fair

Over: COMANCHE CREEK

0.2 MI E OF STRASBURG RD, Adams, CO

Built 1997 Load: 25.0 t ADT: 86

I 70 ML WBND

Fair

Over: CLEAR CREEK

WHEATRIDGE, Jefferson, CO

Built 1968 Load: 25.0 t ADT: 52,000

CR 1.5 (Briggs St)

Fair

Over: Lower Boulder Ditch

0.4 M N of Co Rd 8.5, Weld, CO

Built 1999 Load: 25.0 t ADT: 2,608

BOWLES AVE

Fair

Over: SOUTH PLATTE RIVER

0.25 MI W OF SANTA FE, Arapahoe, CO

Built 1979 Load: 25.0 t ADT: 15,802

SH 36 ML

Fair

Over: I 70 ML

3.6 MI E OF JCT US 40, Adams, CO

Built 1976 Load: 25.0 t ADT: 1,800

US 24 ML

Fair

Over: WILLIAMS CANYON RDWY

IN MANITOU SPRINGS, El Paso, CO

Built 1969 Load: 25.0 t ADT: 27,000

SH 94 ML

Fair

Over: W FK BLACK SQUIRREL CRK

12.0 MI E OF JCT US 24, El Paso, CO

Built 1986 Load: 25.0 t ADT: 4,400

Showing 1,201-1,250 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.