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

BLUFF ROAD

Good

Over: CHURCHMAN DITCH

00.45 SW OF SOUTHPORT RD, Marion, IN

Built 2001 Load: 32.7 t ADT: 15,342

BELMONT STREET

Good

Over: ORME DITCH

00.15 N OF STOP 11 ROAD, Marion, IN

Built 1998 Load: 32.7 t ADT: 877

SHELBYVILLE RD

Good

Over: LITTLE BUCK CREEK

00.30 SE OF ARLINGTON AVE, Marion, IN

Built 2008 Load: 32.7 t ADT: 5,114

ACTON ROAD

Good

Over: UNNAMED DITCH

00.05 N OF SOUTHPORT ROAD, Marion, IN

Built 1980 Load: 32.7 t ADT: 6,465

MCGREGOR ROAD

Good

Over: WILDCAT RUN

00.05 N OF MCGREGOR ROAD, Marion, IN

Built 1973 Load: 32.7 t ADT: 976

PIKE PLAZA RD

Good

Over: FALCON CREEK

00.30 SW OF LAFAYETTE RD, Marion, IN

Built 1978 Load: 32.7 t ADT: 38,654

56TH STREET EB

Good

Over: FALL CREEK

00.75 E SR 37, Marion, IN

Built 1980 Load: 32.7 t ADT: 10,577

CHURCHMAN BYPASS

Good

Over: SLOAN CREEK

00.10 E OF ARLINGTON AVE, Marion, IN

Built 1970 Load: 32.7 t ADT: 4,932

CHASE ST

Good

Over: HIGHLAND CREEK

00.40 S OF TROY AVE, Marion, IN

Built 1989 Load: 32.7 t ADT: 1,063

KILLDEER DR

Good

Over: LITTLE BUCK CREEK

00.05 N OF SOUTHPORT RD, Marion, IN

Built 1991 Load: 32.7 t ADT: 562

PROMONTORY RD

Good

Over: NORTH FORK DRY BRANCH

00.05 S OF 86TH ST, Marion, IN

Built 1993 Load: 32.7 t ADT: 215

RIVER RD

Good

Over: CARMEL CREEK

00.30 N I-465, Marion, IN

Built 1997 Load: 32.7 t ADT: 12,889

BRIDGEPORT RD

Good

Over: STERLING RUN

00.33 NW OF WEIR COOK MEM, Marion, IN

Built 1996 Load: 32.7 t ADT: 2,518

BRIDGEPORT RD

Good

Over: STERLING RUN N CHANNEL

01.55 N WEIR COOK MEM DR, Marion, IN

Built 1996 Load: 32.7 t ADT: 2,518

RAYMOND STREET

Good

Over: MADISON AVENUE NB/SB

00.25 E MERIDIAN ST, Marion, IN

Built 1956 Load: 32.7 t ADT: 19,189

COUNTY LINE RD S

Good

Over: TROTTER CREEK

00.05 E OF RACEWAY RD, Marion, IN

Built 2000 Load: 32.7 t ADT: 2,691

86TH ST

Good

Over: NORTH FORK DRY BRANCH

00.30 E OF OAKLANDON RD, Marion, IN

Built 2002 Load: 32.7 t ADT: 6,332

LONG RUN DR

Good

Over: LITTLE EAGLE CREEK

00.47 E OF GEORGETOWN RD, Marion, IN

Built 2000 Load: 32.7 t ADT: 287

COUNTRYSIDE DR

Good

Over: JULIA CREEK

00.60 S OF MORRIS ST, Marion, IN

Built 1975 Load: 32.7 t ADT: 287

MORRIS ST

Good

Over: JULIA CREEK

00.75 W OF GIRLS SCHOOL R, Marion, IN

Built 2005 Load: 32.7 t ADT: 13,310

PENNSYLVANIA ST

Good

Over: HIGHLAND CREEK

00.10 W OF MADISON AVE, Marion, IN

Built 1950 Load: 32.7 t ADT: 991

SHANNON LAKES LN

Good

Over: CHURCHMAN DITCH

00.10 E OF BLUFF RD, Marion, IN

Built 2002 Load: 32.7 t ADT: 277

SHANNON LAKES DR

Good

Over: CHURCHMAN DITCH

00.25 E OF BLUFF ROAD, Marion, IN

Built 2002 Load: 32.7 t ADT: 300

HARTINGTON PL

Good

Over: WILDCAT RUN

00.10 S OF SOUTHPORT RD, Marion, IN

Built 2004 Load: 32.7 t ADT: 297

FLAT BRANCH DR

Good

Over: FLAT BRANCH

00.15 N OF FRY RD, Marion, IN

Built 2005 Load: 32.7 t ADT: 310

HICKORY ROAD

Good

Over: RAYBOURN DITCH

00.20 N OF MCGREGOR ROAD, Marion, IN

Built 1975 Load: 32.7 t ADT: 786

86TH ST

Good

Over: NORTH FORK DRY BRANCH

00.20 W OF CARROLL RD, Marion, IN

Built 2002 Load: 32.7 t ADT: 6,332

WEIR COOK MEM DR

Good

Over: DEPARTURES (WIER COOK)

01.65 NE PERIMETER RD, Marion, IN

Built 2008 Load: 32.7 t ADT: 2,777

AIRPORT SPEED RAMP

Good

Over: PEDESTRIAN ACCESS

01.45 NE PERIMETER RD, Marion, IN

Built 2008 Load: 32.7 t ADT: 3,475

AIRPORT ACCESS N

Good

Over: PARKING AREA

01.53 NE PERIMETER RD, Marion, IN

Built 2008 Load: 32.7 t ADT: 3,475

WEIR COOK MEM DR

Good

Over: GTC ACCESS RD

01.95 NE PERIMETER RD, Marion, IN

Built 2008 Load: 32.7 t ADT: 3,229

WEIR COOK MEM DR

Good

Over: AIRPORT ACCESS RD

02.00 NE PERIMETER RD, Marion, IN

Built 2008 Load: 32.7 t ADT: 6,949

PERIMETER RD

Good

Over: WEIR COOK MEMORIAL DR

00.65 N I-70, Marion, IN

Built 2008 Load: 32.7 t ADT: 2,518

FRANKLIN ROAD

Good

Over: FLAT BRANCH

00.01 S OF FRYE ROAD, Marion, IN

Built 2012 Load: 32.7 t ADT: 7,208

KEYSTONE AVENUE

Good

Over: FALL CREEK OVERFLOW

00.48 S OF 46TH STREET, Marion, IN

Built 2014 Load: 32.7 t ADT: 25,289

BLACK LOCUST DRIVE

Good

Over: OBRIAN DITCH

00.10 S 38TH STREET, Marion, IN

Built 1995 Load: 32.7 t ADT: 598

MARIO CREEK CIRCLE

Good

Over: MARIO CREEK

00.03 S OF MARIO CREEK DR, Marion, IN

Built 2001 Load: 32.7 t ADT: 99

WIGEON DRIVE

Good

Over: MARIO CREEK

00.09 N OF MALLARD GREEN, Marion, IN

Built 2001 Load: 32.7 t ADT: 497

86TH STREET

Good

Over: OIL CREEK

0.15 E GEORGETOWN ROAD, Marion, IN

Built 1994 Load: 32.7 t ADT: 26,920

EVANSTON AVE

Good

Over: BAILEY CREEK

00.10 N OF 65TH ST, Marion, IN

Built 2016 Load: 32.7 t ADT: 7,950

PAGODA DRIVE

Good

Over: PLEASANT RUN

00.12 S OF RAYMOND ST, Marion, IN

Built 2019 Load: 32.7 t ADT: 2,617

SHERIDAN AVE

Good

Over: POGUES RUN

00.17 N OF 38TH ST, Marion, IN

Built 2021 Load: 32.7 t ADT: 2,000

WESTBROOK AVE

Good

Over: NEELD DITCH

00.05 N OF MORRIS ST, Marion, IN

Built 2022 Load: 32.7 t ADT: 3,589

21ST ST

Good

Over: LICK CREEK

0.05 MI W OF POST RD, Marion, IN

Built 1972 Load: 32.7 t ADT: 13,888

BAKER STREET

Good

Over: YELLOW RIVER

00.20 E OF MICHIGAN STREE, Marshall, IN

Built 2004 Load: 32.7 t ADT: 2,125

N ELM ROAD

Good

Over: DAUSMAN DITCH

00.60 S OF E 6TH ROAD, Marshall, IN

Built 1998 Load: 32.7 t ADT: 100

GLENN OVERMYER DR.

Good

Over: YELLOW RIVER

00.40 E OF SR 17, Marshall, IN

Built 2000 Load: 32.7 t ADT: 2,725

GLENN OVERMYER DR.

Good

Over: OXBOW WETLANDS

00.60 E OF SR 17, Marshall, IN

Built 2000 Load: 32.7 t ADT: 2,625

WEST 13TH ROAD

Good

Over: YELLOW RIVER

00.40 W OF MUCKSHAW ROAD, Marshall, IN

Built 2011 Load: 32.7 t ADT: 525

NORTH HICKORY ROAD

Good

Over: YELLOW RIVER

00.10 N OF E 8TH ROAD, Marshall, IN

Built 2018 Load: 32.7 t ADT: 100

Showing 13,151-13,200 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.