State profile · Below median Poor share

Indiana bridge safety

Condition ratings, load ratings, and Poor-condition data for every public highway bridge in Indiana, based on the FHWA National Bridge Inventory.

18,630
Public bridges
36.1%
Good condition
4.9%
Poor condition

Data updated May 2026

Total Bridges

18,630

Public highway bridges in Indiana

Good Condition

36.1%

6,733 bridges rated 7-9

-13.9pp vs 50% benchmark

Poor Condition

4.9%

920 bridges whose lowest applicable component is rated 0-4

-2.1pp vs national avg 7.0%

Indiana vs national bridge condition

Indiana - Good condition share 36.1%
National avg

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

Indiana - Poor-condition share 16.5%
National avg

Lower is better. Bar maxes at 30% (worst-state ceiling). National average sits at 7.0%.

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.

AR

Arkansas

4.71% top marginal rate
Structure
Progressive
Burden @ $100K
$5,544

WA

Washington

4.81% top marginal rate
Structure
Progressive
Burden @ $100K
$8,808
Selected

IN

Indiana

4.94% top marginal rate
Structure
Progressive
Burden @ $100K
$18,630

KS

Kansas

5.25% top marginal rate
Structure
Progressive
Burden @ $100K
$23,867

WY

Wyoming

5.41% top marginal rate
Structure
Progressive
Burden @ $100K
$3,181

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.

All Bridges in Indiana

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

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 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

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

SR 234

Poor

Over: BR INDIAN CREEK

01.12 W SR 47, Montgomery, IN

Built 1990 Load: 97.2 t ADT: 460

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 18,601-18,630 of 18,630 bridges

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.

Every figure on PlainBridge is rendered directly from federal source data, no number is typed in by an editor. This page draws directly on federal source data, no figure is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error.