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

SHORTRIDGE AVE

Fair

Over: FISHER CREEK

00.10 N OF BROOKVILLE RD, Marion, IN

Built 1964 Load: 32.7 t ADT: 3,131

KENTUCKY AVE

Fair

Over: STATE DITCH

00.30 NE OF MANN RD, Marion, IN

Built 1952 Load: 32.7 t ADT: 18,565

THOMPSON RD

Fair

Over: UNNAMED DITCH

00.20 W OF MANN RD, Marion, IN

Built 1968 Load: 32.7 t ADT: 4,458

HARDING STREET

Fair

Over: LICK CREEK

00.90 N I-465, Marion, IN

Built 1981 Load: 32.7 t ADT: 17,151

BLUFF RD

Fair

Over: LICK CREEK

00.17 S OF HANNA AVE, Marion, IN

Built 1932 Load: 32.7 t ADT: 13,480

THOMPSON RD

Fair

Over: HAUISEN DITCH

00.12 W OF HARDING ST, Marion, IN

Built 1969 Load: 32.7 t ADT: 4,494

MCFARLAND RD

Fair

Over: DERBYSHIRE CREEK

00.10 S OF EDGEWOOD AVE, Marion, IN

Built 2004 Load: 32.7 t ADT: 8,036

HICKORY RD

Fair

Over: WILDCAT BROOK

00.40 S OF EDGEWOOD AVE, Marion, IN

Built 1963 Load: 32.7 t ADT: 2,214

MOORESVILLE RD

Fair

Over: GOOSE CREEK

00.05 N OF SOUTHPORT ROAD, Marion, IN

Built 1964 Load: 32.7 t ADT: 6,897

SOUTHPORT RD

Fair

Over: GOOSE CREEK

00.05 E OF MOORESVILLE RD, Marion, IN

Built 1964 Load: 32.7 t ADT: 3,810

MANN ROAD

Fair

Over: MANN CREEK

00.20 N OF SOUTHPORT RD, Marion, IN

Built 1981 Load: 32.7 t ADT: 14,868

SOUTHPORT RD

Fair

Over: LITTLE BUCK CREEK

00.30 W I-65, Marion, IN

Built 1979 Load: 32.7 t ADT: 28,649

SHERMAN DR

Fair

Over: PLEASANT RUN

00.35 N OF COUNTY LINE RD, Marion, IN

Built 1953 Load: 32.7 t ADT: 8,287

COPELAND RD

Fair

Over: LEATHERWOOD CREEK

00.65 E OF FIVE POINTS RD, Marion, IN

Built 1969 Load: 32.7 t ADT: 233

KNAPP RD

Fair

Over: WILDCAT RUN

00.15 S OF MCGREGOR RD, Marion, IN

Built 1968 Load: 32.7 t ADT: 233

SWAILS STREET

Fair

Over: WILDCAT RUN

00.05 E ACTON ROAD, Marion, IN

Built 1983 Load: 32.7 t ADT: 2,316

MAZE ROAD

Fair

Over: BUCK CREEK

01.10 E OF ACTON ROAD, Marion, IN

Built 1970 Load: 32.7 t ADT: 1,112

CARROLL ROAD

Fair

Over: DRY BRANCH

00.25 S OF 79TH ST, Marion, IN

Built 1973 Load: 32.7 t ADT: 7,421

HOLT ROAD

Fair

Over: BIG EAGLE CREEK

00.30 N OF ROCKVILLE ROAD, Marion, IN

Built 1976 Load: 32.7 t ADT: 14,768

MADISON AVE

Fair

Over: HIGHLAND CREEK

00.32 NW OF HANNA AVE, Marion, IN

Built 1984 Load: 32.7 t ADT: 19,446

56TH STREET WB

Fair

Over: FALL CREEK

00.75 E SR 37, Marion, IN

Built 1960 Load: 32.7 t ADT: 10,577

86TH STREET

Fair

Over: HAVERSTICK CREEK

00.40 E OF WESTFIELD BLVD, Marion, IN

Built 1986 Load: 32.7 t ADT: 19,988

PROSPECT ST

Fair

Over: MUESSING CREEK

00.15 W OF CARROLL RD, Marion, IN

Built 1991 Load: 32.7 t ADT: 6,361

GREENLEE DR

Fair

Over: COX DITCH

00.30 S OF 10TH ST, Marion, IN

Built 1970 Load: 32.7 t ADT: 371

VANDALIA ST

Fair

Over: NEELD DITCH

00.05 NE OF MORRIS ST, Marion, IN

Built 1954 Load: 32.7 t ADT: 932

THOMPSON RD

Fair

Over: HARTING DITCH

00.15 W OF ARLINGTON AVE, Marion, IN

Built 1965 Load: 32.7 t ADT: 23,772

WASHINGTON STREET

Fair

Over: WHITE RIVER/PARKWAY

00.85 W OF MERIDIAN STREE, Marion, IN

Built 1985 Load: 32.7 t ADT: 24,368

WASHINGTON STREET

Fair

Over: LITTLE EAGLE CREEK

00.25 E OF ROCKVILLE ROAD, Marion, IN

Built 1916 Load: 32.7 t ADT: 25,347

ROBINSROCK LN

Fair

Over: ROBIN RUN

00.47 N OF 62ND ST, Marion, IN

Built 1995 Load: 32.7 t ADT: 371

SHADELAND AVENUE

Fair

Over: LICK CREEK

00.35 N OF BROOKVILLE ROA, Marion, IN

Built 1953 Load: 32.7 t ADT: 20,101

WASHINGTON STREET

Fair

Over: SHADELAND AVENUE NB/SB

00.80 W I-465, Marion, IN

Built 1953 Load: 32.7 t ADT: 25,614

MERIDIAN STREET

Fair

Over: WILLIAMS CREEK

00.50 N OF 75TH STREET, Marion, IN

Built 1932 Load: 32.7 t ADT: 40,929

MERIDIAN STREET

Fair

Over: WHITE RIVER/RIVERVIEW DR

00.60 N OF KESSLER BLVD, Marion, IN

Built 1926 Load: 32.7 t ADT: 28,102

MERIDIAN STREET

Fair

Over: INDPLS WATER CO CANAL

00.33 N OF 56TH STREET, Marion, IN

Built 1926 Load: 32.7 t ADT: 38,972

MADISON AVENUE

Fair

Over: MORRIS STREET EB/WB

00.25 E MERIDIAN ST, Marion, IN

Built 1955 Load: 32.7 t ADT: 17,645

MADISON AVENUE

Fair

Over: PLEASANT RUN

00.20 S OF RAYMOND STREET, Marion, IN

Built 1954 Load: 32.7 t ADT: 18,677

MERIDIAN ST

Fair

Over: LICK CREEK

00.05 N I-465, Marion, IN

Built 1963 Load: 32.7 t ADT: 15,855

MENDENHALL RD

Fair

Over: GOOSE CREEK

00.35 N OF CAMBY RD, Marion, IN

Built 1975 Load: 32.7 t ADT: 3,807

AIRPORT ACCESS S

Fair

Over: PARKING AREA

01.37 NE PERIMETER RD, Marion, IN

Built 2008 Load: 32.7 t ADT: 3,475

BROOKVILLE ROAD

Fair

Over: FISHER CREEK

00.20 SE OF SHADELAND AVE, Marion, IN

Built 1961 Load: 32.7 t ADT: 15,202

HARDING STREET

Fair

Over: TRIBUTARY TO LICK CREEK

00.65 N I-465, Marion, IN

Built 1970 Load: 32.7 t ADT: 17,151

86TH STREET

Fair

Over: PAYNE BRANCH

00.36 W OF MICHIGAN RD, Marion, IN

Built 1994 Load: 32.7 t ADT: 26,920

STOP 11 DRIVE

Fair

Over: BUFFALO CREEK

00.40 W MADISON AVE, Marion, IN

Built 1996 Load: 32.7 t ADT: 25,253

BEHNER CROSSING

Fair

Over: BEHNER CREEK

00.10 S BAY VISTA DR, Marion, IN

Built 1980 Load: 32.7 t ADT: 53

POST RD

Fair

Over: LICK CREEK

0.06 M N OF 21ST ST, Marion, IN

Built 1972 Load: 32.7 t ADT: 28,674

SOUTH MICHIGAN ST.

Fair

Over: YELLOW RIVER

00.10 N OF LAKE STREET, Marshall, IN

Built 1917 Load: 32.7 t ADT: 10,525

GARRO STREET

Fair

Over: YELLOW RIVER

00.10 W OF LIBERTY STREET, Marshall, IN

Built 1931 Load: 32.7 t ADT: 3,400

EAST JEFFERSON ST.

Fair

Over: YELLOW RIVER

00.10 E OF MICHIGAN STREE, Marshall, IN

Built 1927 Load: 32.7 t ADT: 5,650

SOUTH OLIVE TRAIL

Fair

Over: YELLOW RIVER

00.20 S OF W 14TH ROAD, Marshall, IN

Built 1966 Load: 32.7 t ADT: 725

EAST 18TH RD

Fair

Over: TIPPECANOE RIVER

00.50 E OF S CEDAR RD, Marshall, IN

Built 1968 Load: 32.7 t ADT: 375

Showing 5,201-5,250 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.