State profile · Below median Poor share

Indiana 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 Indiana.

19,495
Public bridges
42.2%
Good condition
5.2%
Poor condition

Indiana holds 19,495 public highway bridges (#11 of 52 by inventory) with a 5.22% Poor share (#32 of 52 by Poor share).

That is 5.2% 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 21 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

19,495

Public highway bridges in Indiana

Good Condition

42.2%

8,224 bridges rated 7-9

-7.8pp vs 50% benchmark

Poor Condition

5.2%

1,018 bridges whose lowest applicable component is rated 0-4

-2.3pp vs national avg 7.5%

Indiana vs national bridge condition

Indiana - Good condition share 42.2%
National avg

Share of bridges rated 7-9 on the FHWA 0-9 scale (deck, superstructure, substructure all good).

Indiana - Poor-condition share 17.4%
National avg

Lower is better. Bar maxes at 30% (worst-state ceiling). National average sits at 7.5%.

Indiana 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: Indiana has 19,495 bridges and a 5.2% Poor-condition share in the 2024 NBI, rank #21 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 (%) IN, Public bridges in inventory (thousands): 19.5k · Poor-condition share (%): 5.22%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%CO, Public bridges in inventory (thousands): 9k · Poor-condition share (%): 4.82%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%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: Indiana has 19,495 bridges and a 5.2% Poor-condition share in the 2024 NBI, rank #21 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.

Indiana 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

19,495 11th of 54 higher than 43 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 Indiana

The highlighted point is Indiana: 19,495 bridges and 5.22% in Poor condition, rank #21 of 54 jurisdictions ordered from the lowest share upward. The five jurisdictions immediately above and below Indiana on that same Poor-share ordering:

  • Colorado: 8,965 bridges · 4.82% Poor
  • Idaho: 4,616 bridges · 4.90% Poor
  • Indiana: 19,495 bridges · 5.22% Poor
  • Kansas: 24,894 bridges · 5.26% Poor
  • Arkansas: 12,974 bridges · 5.43% Poor

The full national sortable table lives on the rankings page.

Material families in Indiana

Exclusive FHWA material families across all 19,495 bridges in this state; continuous variants fold into the parent family. Orthogonal to the Poor-share scatter above.

Who maintains Indiana’s inventory

State agency holds 31.6% of the 19,495 public highway bridges filed under Indiana in the 2024 NBI, the agency-of-record split for this state, not a condition verdict.

When Indiana’s bridges were built

Pre-1950 construction accounts for 13.0% of the 19,495 bridges with a recorded original year in Indiana. Era bands are orthogonal to the Poor-share ranking above.

Condition Distribution

Indiana42.2%52.6%GoodFairPoor
Bridge inventory deck-condition mix - Indiana (FHWA NBI)

Counties (92)

Adams 194 Allen 613 Bartholomew 269 Benton 151 Blackford 73 Boone 293 Brown 114 Carroll 161 Cass 185 Clark 257 Clay 185 Clinton 210 Crawford 123 Daviess 221 DeKalb 149 Dearborn 145 Decatur 220 Delaware 277 Dubois 220 Elkhart 278 Fayette 100 Floyd 145 Fountain 197 Franklin 159 Fulton 85 Gibson 362 Grant 280 Greene 239 Hamilton 454 Hancock 201 Harrison 127 Hendricks 355 Henry 206 Howard 194 Huntington 187 Jackson 321 Jasper 189 Jay 191 Jefferson 153 Jennings 163 Johnson 230 Knox 290 Kosciusko 152 LaGrange 100 LaPorte 227 Lake 501 Lawrence 165 Madison 301 Marion 958 Marshall 183 Martin 104 Miami 171 Monroe 232 Montgomery 252 Morgan 252 Newton 172 Noble 89 Ohio 41 Orange 137 Owen 150 Parke 200 Perry 151 Pike 172 Porter 277 Posey 208 Pulaski 102 Putnam 290 Randolph 257 Ripley 191 Rush 227 Scott 118 Shelby 247 Spencer 244 St. Joseph 227 Starke 86 Steuben 135 Sullivan 217 Switzerland 62 Tippecanoe 330 Tipton 113 Union 58 Vanderburgh 279 Vermillion 127 Vigo 296 Wabash 192 Warren 135 Warrick 197 Washington 174 Wayne 343 Wells 158 White 214 Whitley 115

Indiana 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 Indiana on the same metric.

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
Selected

IN

Indiana

5.22% top marginal rate
Structure
Progressive
Burden @ $100K
$19,495

KS

Kansas

5.26% top marginal rate
Structure
Progressive
Burden @ $100K
$24,894

AR

Arkansas

5.43% top marginal rate
Structure
Progressive
Burden @ $100K
$12,974

Bridges Needing Most Attention in Indiana

Six lowest-condition bridges in Indiana, ranked by the portal's composite display score. Inspection intervals are risk-based under current NBIS rules.

SR 66 ILL SR 14

Poor

Over: WABASH RIVER & SERVICE R

00.35 W of SR 69, Posey, IN

Built 1930 Load: 0.0 t ADT: 1,065

SERVICE ROAD

Poor

Over: MARIO CREEK

INDIANA WOMEN PRISON, Marion, IN

Built 1920 Load: 0.0 t ADT: 1

PARK ROAD/TRAIL

Poor

Over: UNT MUD/RIVIR LAKES

00.00 CHAIN-O-LAKES ST PK, Noble, IN

Built 1893 Load: 0.0 t

ENTRANCE

Poor

Over: MADISON RR

00.00 MADISON ST HOSPITAL, Jefferson, IN

Built 1930 Load: 0.0 t ADT: 133

BOND CEMETERY ROAD

Poor

Over: NORTH FORK OF SALT CREEK

.2MI S OF GREEN VALLEY RD, Brown, IN

Built 1908 Load: 0.0 t

CR 200S

Poor

Over: BIRCH CREEK

00.70 E of 250 W, Clay, IN

Built 1910 Load: 0.0 t

All Bridges in Indiana

CR 575S

Fair

Over: SLY FORK

00.80 E CR 300 E, Madison, IN

Built 1927 Load: 32.7 t ADT: 319

SOUTH N ST

Fair

Over: LITTLE DUCK CREEK

00.10 W 24TH ST, Madison, IN

Built 1950 Load: 32.7 t ADT: 504

MAIN ST

Fair

Over: WHITE RIVER

00.10 W ALEXANDRIA PK, Madison, IN

Built 1976 Load: 32.7 t ADT: 14,115

JACKSON ST

Fair

Over: WHITE R/KILLBUCK CR

00.10 S GRAND AVE, Madison, IN

Built 1936 Load: 32.7 t ADT: 14,115

CR 1300N

Fair

Over: BRANCH OF PIPE CREEK

01.00 E CR 200 E, Madison, IN

Built 1970 Load: 32.7 t ADT: 214

W 67TH ST

Fair

Over: BRANCH SUGAR FORK CR

00.10 W SR 9 / 109, Madison, IN

Built 1987 Load: 32.7 t ADT: 3,955

CR 150N

Fair

Over: TURKEY CREEK

00.50 W CR 500 E, Madison, IN

Built 1984 Load: 32.7 t ADT: 848

CR 1000N

Fair

Over: ALEXANDRIA CREEK

00.10 E SR 9, Madison, IN

Built 1984 Load: 32.7 t ADT: 571

NEW COLUMBUS AVE

Fair

Over: SUGAR RUN

00.20 N CR 600 S, Madison, IN

Built 1964 Load: 32.7 t ADT: 4,255

CR 1300N

Fair

Over: BRANCH LITTLE DUCK CR

00.30 E CR 700 W, Madison, IN

Built 1990 Load: 32.7 t ADT: 147

CR 200E

Fair

Over: UNNAMED DITCH

00.10 S CR 1400 N, Madison, IN

Built 2010 Load: 32.7 t ADT: 146

OLD SR 132

Fair

Over: MUD CREEK

00.20 N CR 400 S, Madison, IN

Built 1980 Load: 32.7 t ADT: 1,139

LAFAYETTE RD

Fair

Over: TRADERS HOLLOW

00.21 N OF MOORE RD, Marion, IN

Built 1948 Load: 32.7 t ADT: 10,122

MICHIGAN ROAD

Fair

Over: PAYNE BRANCH

00.26 N OF 79TH STREET, Marion, IN

Built 1923 Load: 32.7 t ADT: 24,780

SANDI DR

Fair

Over: HOWARD JOHNSON DITCH

00.30 N OF 79TH ST, Marion, IN

Built 1968 Load: 32.7 t ADT: 2,143

SPRINGMILL RD

Fair

Over: WILLIAMS CREEK

00.12 N OF 79TH ST, Marion, IN

Built 1930 Load: 32.7 t ADT: 15,943

86TH ST

Fair

Over: MUD CREEK

00.30 E OF SERGEANT RD, Marion, IN

Built 1959 Load: 32.7 t ADT: 7,224

FOX RD

Fair

Over: DRY BRANCH

00.35 W OF OAKLANDON RD, Marion, IN

Built 1948 Load: 32.7 t ADT: 24,759

LAFAYETTE ROAD

Fair

Over: BUSHES RUN

00.05 N 71ST ST, Marion, IN

Built 1995 Load: 32.7 t ADT: 9,528

52ND ST

Fair

Over: GUION CREEK

00.47 E OF GEORGETOWN RD, Marion, IN

Built 1971 Load: 32.7 t ADT: 1,052

GUION RD

Fair

Over: GUION CREEK

00.20 N OF 56TH ST, Marion, IN

Built 1965 Load: 32.7 t ADT: 20,472

52ND ST

Fair

Over: FALCON CREEK

00.35 W I-65, Marion, IN

Built 1999 Load: 32.7 t ADT: 1,052

73RD STREET

Fair

Over: HOWARD JOHNSON DITCH

00.28 E OF GRANDVIEW DR, Marion, IN

Built 1960 Load: 32.7 t ADT: 22,431

KESSLER BLVD W DR

Fair

Over: CROOKED CREEK

00.02 W OF MICHIGAN ROAD, Marion, IN

Built 1924 Load: 32.7 t ADT: 18,360

52ND ST

Fair

Over: INDPLS WATER CO CANAL

00.70 W OF MERIDIAN ST, Marion, IN

Built 1953 Load: 32.7 t ADT: 1,031

COLLEGE AVE

Fair

Over: INDPLS WATER CO CANAL

00.02 N OF BROADRIPPLE AV, Marion, IN

Built 1947 Load: 32.7 t ADT: 29,590

GUILFORD AVE

Fair

Over: INDPLS WATER CO CANAL

00.10 N OF BROADRIPPLE AV, Marion, IN

Built 1906 Load: 32.7 t ADT: 3,200

CENTRAL AVE

Fair

Over: INDPLS WATER CO CANAL

00.35 N OF KESSLER BLVD, Marion, IN

Built 1947 Load: 32.7 t ADT: 5,127

ILLINOIS ST

Fair

Over: INDPLS WATER CO CANAL

00.10 N OF 56TH ST, Marion, IN

Built 1946 Load: 32.7 t ADT: 17,221

ARLINGTON AVE

Fair

Over: DEVON CREEK

00.58 S OF 56TH ST, Marion, IN

Built 1974 Load: 32.7 t ADT: 18,022

SHAFTER AVE

Fair

Over: FALL CREEK

00.05 E OF FALL CREEK RD, Marion, IN

Built 1959 Load: 32.7 t ADT: 4,270

71ST ST

Fair

Over: FALL CREEK

00.10 E OF FALL CREEK RD, Marion, IN

Built 1970 Load: 32.7 t ADT: 10,498

38TH/GEORGETOWN

Fair

Over: FALCON CREEK

00.34 S OF LAFAYETTE ROAD, Marion, IN

Built 1961 Load: 32.7 t ADT: 31,916

38TH STREET EB

Fair

Over: GUION ROAD CONRAIL RR

00.50 E OF LAFAYETTE ROAD, Marion, IN

Built 1964 Load: 32.7 t ADT: 19,068

38TH STREET EB

Fair

Over: DRY RUN

00.15 E OF HIGH SCHOOL RO, Marion, IN

Built 1967 Load: 32.7 t ADT: 69,876

38TH STREET WB

Fair

Over: DRY RUN

00.15 E OF HIGH SCHOOL RO, Marion, IN

Built 1961 Load: 32.7 t ADT: 69,876

30TH ST

Fair

Over: FALCON CREEK

00.40 E OF GEORGETOWN RD, Marion, IN

Built 1960 Load: 32.7 t ADT: 23,311

LAFAYETTE ROAD

Fair

Over: LITTLE EAGLE CREEK

00.20 NW OF 30TH STREET, Marion, IN

Built 1923 Load: 32.7 t ADT: 15,627

EAGLEDALE DR

Fair

Over: FALCON CREEK

00.45 S OF 30TH ST, Marion, IN

Built 1955 Load: 32.7 t ADT: 645

COLD SPRING RD

Fair

Over: CROOKED CREEK

00.60 N OF 30TH ST, Marion, IN

Built 1935 Load: 32.7 t ADT: 5,987

COOPER RD

Fair

Over: CROOKED CREEK

00.20 N of 38TH ST, Marion, IN

Built 1922 Load: 32.7 t ADT: 220

42ND ST

Fair

Over: CROOKED CREEK

00.30 E OF KESSLER BLVD, Marion, IN

Built 1965 Load: 32.7 t ADT: 1,502

44TH ST

Fair

Over: CROOKED CREEK

00.03 E OF KESSLER BLVD, Marion, IN

Built 1965 Load: 32.7 t ADT: 1,742

38TH STREET

Fair

Over: FALL CREEK

00.45 W OF KEYSTONE AVENU, Marion, IN

Built 1936 Load: 32.7 t ADT: 19,365

COLLEGE AVE

Fair

Over: FALL CREEK

00.20 S OF 30TH ST, Marion, IN

Built 1905 Load: 32.7 t ADT: 21,818

DELAWARE ST

Fair

Over: FALL CREEK

00.30 S OF 30TH ST, Marion, IN

Built 1924 Load: 32.7 t ADT: 8,709

KEYSTONE AVENUE

Fair

Over: FALL CREEK

00.45 S OF 46TH STREET, Marion, IN

Built 1950 Load: 32.7 t ADT: 28,372

46TH ST

Fair

Over: DEVON CREEK

00.33 E OF EMERSON AVE, Marion, IN

Built 1962 Load: 32.7 t ADT: 13,311

EMERSON AVENUE

Fair

Over: DEVON CREEK

00.05 S OF 46TH STREET, Marion, IN

Built 1962 Load: 32.7 t ADT: 12,848

30TH ST

Fair

Over: MASSACHUSETTS CONRAIL

00.10 W OF EMERSON AVE, Marion, IN

Built 1969 Load: 32.7 t ADT: 11,512

Showing 5,101-5,150 of 19,495 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 Indiana's inventory picture to drill to a county or a specific span.

  • Browse counties in Indiana 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. Indiana 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.