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

FERGUSON RD

Poor

Over: ST MARYS RIVER

00.10 E MULDOON RD, Allen, IN

Built 1972 Load: 44.5 t ADT: 5,750

CR 300N

Poor

Over: Little Creek

00.32 E of CR 800 W, Warren, IN

Built 1957 Load: 45.1 t ADT: 290

ROBB HILL RD

Poor

Over: SYCAMORE CREEK

00.67 W OF CO RD 40, Morgan, IN

Built 1976 Load: 45.7 t ADT: 900

I-90 EB

Poor

Over: 129TH STREET

01.21 W US 41, Lake, IN

Built 1956 Load: 46.0 t ADT: 18,085

I-90 WB

Poor

Over: 129TH STREET

01.21 W US 41, Lake, IN

Built 1956 Load: 46.0 t ADT: 18,085

CR 525E

Poor

Over: LITTLE KANKAKEE RIVER

00.40 S OF DIVISION RD, LaPorte, IN

Built 1984 Load: 46.1 t ADT: 150

CR 100 NORTH

Poor

Over: SUGAR CREEK

00.60 W OF GRANT CITY RD, Henry, IN

Built 1990 Load: 46.3 t ADT: 125

BIG BEND RD

Poor

Over: CROOKED CREEK

00.47 W OF WAVERLY RD, Morgan, IN

Built 1985 Load: 46.6 t ADT: 360

FISH CREEK RD

Poor

Over: E FORK FISH CREEK

0.2 N OF SR 46, Owen, IN

Built 1972 Load: 46.7 t ADT: 90

PARENT RD

Poor

Over: SIX MILE CREEK

00.30 W RIVER RUN ROAD, Allen, IN

Built 1978 Load: 47.4 t ADT: 26

CR 1050 E

Poor

Over: SMITH FORK

00.80 N OF CR 900 S, Gibson, IN

Built 1992 Load: 47.5 t ADT: 20

ALLENSVILLE RD

Poor

Over: SOUTH FORK ELK CREEK

00.20 N of US 250, Switzerland, IN

Built 1920 Load: 47.5 t ADT: 125

BURMA ROAD

Poor

Over: YOUNGS CREEK

0.05 N OF CR 550 S, Orange, IN

Built 1930 Load: 47.9 t ADT: 150

CR 350N

Poor

Over: Little RACCOON Creek

00.00 Int of CR 570 E, Parke, IN

Built 1980 Load: 47.9 t ADT: 361

HOWE PL

Poor

Over: E LITTLE SUGAR CREEK

00.20 N GANNON RD, Vigo, IN

Built 1980 Load: 48.1 t ADT: 283

CR 200W

Poor

Over: NO NAME CREEK

00.17 N of CR 400 S, Delaware, IN

Built 1980 Load: 48.4 t ADT: 20

CR 250S

Poor

Over: TRAVIS DITCH

00.10 W CR 150 E, LaPorte, IN

Built 1989 Load: 48.4 t ADT: 150

SUMMIT ST

Poor

Over: A. MARTIN DRAIN

00.20 E OF GREEN ST, Allen, IN

Built 1970 Load: 49.1 t ADT: 1,683

CR 750 EAST

Poor

Over: TIPPECANOE RIVER

00.50 N OF CR 500 N, Kosciusko, IN

Built 1980 Load: 49.7 t ADT: 500

COAL BLUFF Rd

Poor

Over: N Branch OTTER Creek

00.90 W of SR 59, Parke, IN

Built 1958 Load: 50.1 t ADT: 382

LOWER HUNTINGTON R

Poor

Over: ST MARYS RIVER

00.10 W OF FAIRFIELD AVE, Allen, IN

Built 1960 Load: 50.3 t ADT: 15,050

Lilly Rd

Poor

Over: Wea Creek

00.10 NE of CR 250 W, Tippecanoe, IN

Built 1929 Load: 50.3 t ADT: 1,728

SUGAN HOLLOW RD

Poor

Over: BRUSHY FORK CREEK

00.02 W OF BRUSHY FORK RD, Jefferson, IN

Built 1930 Load: 52.3 t ADT: 125

MICHIGAN ROAD

Poor

Over: ROGERS RUN

00.20 SW of Cortner Road, Clark, IN

Built 1960 Load: 52.9 t ADT: 390

BLUFFTON RD

Poor

Over: ST MARYS RIVER

00.10 W OF BROADWAY BLVD, Allen, IN

Built 1986 Load: 55.2 t ADT: 23,300

E FALL CK PKWY N D

Poor

Over: BLUE CREEK

00.40 W I-465, Marion, IN

Built 1966 Load: 56.7 t ADT: 469

CR 950E

Poor

Over: SYMONDS CREEK

00.05 N OF CR 350 S, Henry, IN

Built 1935 Load: 57.1 t ADT: 125

CR 510S

Poor

Over: Flint Creek

00.35 E of CR 900 W, Tippecanoe, IN

Built 1982 Load: 57.7 t ADT: 1,335

CR 1200N

Poor

Over: Van Buren Creek

00.30 E of 300 E, Clay, IN

Built 1920 Load: 62.4 t ADT: 119

CR 875 NORTH

Poor

Over: WHITE CREEK

0.15 E OF CR 200 E, Jackson, IN

Built 1970 Load: 63.1 t ADT: 210

CR 88

Poor

Over: DEER CREEK

01.90 E SR 37, Perry, IN

Built 1994 Load: 64.1 t ADT: 125

CR 750S

Poor

Over: Branch of Conneley Ditch

00.20 W of CR 100 W, Clay, IN

Built 1992 Load: 64.9 t ADT: 191

CR 900E

Poor

Over: Branch S Fork Wildcat Cr

00.26 N of SR 38, Tippecanoe, IN

Built 1981 Load: 65.4 t ADT: 1,749

EAST PERIMETER ROA

Poor

Over: BIG CREEK

3.0 MILES NORTH OF EAST P, Ripley, IN

Built 2009 Load: 66.2 t ADT: 10

NIMNICHT ROAD

Poor

Over: NIMNICHT CREEK

01.55 NE US 150/50, Knox, IN

Built 1995 Load: 77.0 t ADT: 170

SR 162

Poor

Over: BRANCH CROOKED CREEK

01.30 E SR 245, Spencer, IN

Built 1987 Load: 83.6 t ADT: 2,549

WILSON TERRACE CT

Poor

Over: TRIB OF LITTLE COOL CR

00.12 E OF S GUILFORD, Hamilton, IN

Built 1984 Load: 84.2 t ADT: 70

SR 32

Poor

Over: MILL CREEK

03.70 W SR 47, Montgomery, IN

Built 1920 Load: 88.2 t ADT: 3,556

CR 700S

Poor

Over: Lafferty Ditch

00.30 W of CR 300 W, Clay, IN

Built 1900 Load: 90.7 t ADT: 12

CR 750E

Poor

Over: BRANCH OF RACCOON CREEK

00.20 S of CR 700 S, Montgomery, IN

Built 1996 Load: 90.7 t ADT: 70

SR 246

Poor

Over: BR W FORK FISH CREEK

02.86 W SR 46, Owen, IN

Built 1986 Load: 93.3 t ADT: 1,188

SR 234

Poor

Over: BR INDIAN CREEK

01.12 W SR 47, Montgomery, IN

Built 1990 Load: 97.2 t ADT: 460

I-465

Poor

Over: DELAWARE CREEK

01.30 E US 421, Marion, IN

Built 1966 Load: 97.2 t ADT: 129,314

I-465

Poor

Over: CROOKED CREEK

00.50 E US 421, Marion, IN

Built 1966 Load: 97.2 t ADT: 129,314

ROUTE H-85

Poor

Over: TRIBUTARY/TURKEY CREEK

0.5 KM N OF H-58, Martin, IN

Built 1942 Load: 99.9 t ADT: 200

Showing 19,451-19,495 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.