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 100W

Fair

Over: SEAMONS DITCH

00.10 N of CR 475 S, Benton, IN

Built 1988 Load: 32.7 t ADT: 55

CR 600N

Fair

Over: Hollingsworth Ditch

00.40 E of CR 800 E, Benton, IN

Built 1994 Load: 32.7 t ADT: 88

CR 100W

Fair

Over: WALNUT CREEK

00.50 N of 400 N, Blackford, IN

Built 1988 Load: 32.7 t ADT: 110

CR 700 EAST

Fair

Over: BIG LICK CREEK

00.40 S OF 400 S, Blackford, IN

Built 1994 Load: 32.7 t ADT: 219

CR 400 EAST

Fair

Over: LITTLE LICK CREEK

01.00 N OF JCT SR 26, Blackford, IN

Built 1986 Load: 32.7 t ADT: 83

CR 600 EAST

Fair

Over: BIG LICK CREEK

00.30 S OF 400 S, Blackford, IN

Built 1996 Load: 32.7 t ADT: 110

CR 600 EAST

Fair

Over: TWO MILE DITCH

00.50 N OF JCT SR 26, Blackford, IN

Built 1965 Load: 32.7 t ADT: 110

CR 800 EAST

Fair

Over: TWO MILE DITCH

00.30 N OF JCT SR 26, Blackford, IN

Built 1975 Load: 32.7 t ADT: 110

CR 875 EAST

Fair

Over: TWO MILE DITCH

00.80 N OF JCT SR 26, Blackford, IN

Built 1989 Load: 32.7 t ADT: 128

CR 700 EAST

Fair

Over: SLOCUM DITCH

00.10 N OF 400 N, Blackford, IN

Built 1965 Load: 32.7 t ADT: 110

CR 500 NORTH

Fair

Over: SLOCUM DITCH

01.00 NW OF 900 E, Blackford, IN

Built 1965 Load: 32.7 t ADT: 110

CR 400 NORTH

Fair

Over: WALNUT CREEK

00.00 E OF 100 W, Blackford, IN

Built 1975 Load: 32.7 t ADT: 110

JEFFERSON STREET

Fair

Over: LITTLE LICK CREEK

00.10 N OF 1ST STREET, Blackford, IN

Built 1965 Load: 32.7 t ADT: 566

MONROE STREET

Fair

Over: LITTLE LICK CREEK

00.10 N OF 1ST STREET, Blackford, IN

Built 1991 Load: 32.7 t ADT: 875

CR 300 SOUTH

Fair

Over: BIG LICK CREEK

00.20 E OF GADBURY ROAD, Blackford, IN

Built 1988 Load: 32.7 t ADT: 531

CR 500 NORTH

Fair

Over: SCHWARTZKOPF DITCH

00.40 E OF 400 E, Blackford, IN

Built 1980 Load: 32.7 t ADT: 100

CR 400 SOUTH

Fair

Over: BIG LICK CREEK

00.40 E OF 400 E, Blackford, IN

Built 1965 Load: 32.7 t ADT: 83

SR 75

Fair

Over: WILEY CREEK

02.30 N SR 32, Boone, IN

Built 1996 Load: 32.7 t ADT: 1,320

I-65

Fair

Over: PRAIRIE CREEK

01.75 S SR 39, Boone, IN

Built 1948 Load: 32.7 t ADT: 73,132

CR 350W

Fair

Over: PRAIRIE CREEK

00.20 N OF CR 450 N, Boone, IN

Built 1994 Load: 32.7 t ADT: 120

CR 600W

Fair

Over: WOLF CREEK

00.80 N OF CR 200 N, Boone, IN

Built 1920 Load: 32.7 t ADT: 120

CR 350N

Fair

Over: WOLF CREEK

00.01 W OF CR 700 W, Boone, IN

Built 1981 Load: 32.7 t ADT: 120

CR 700S

Fair

Over: WILEY THOMPSON DITCH

00.30 W OF CR 200 E, Boone, IN

Built 1930 Load: 32.7 t ADT: 120

CR 450E

Fair

Over: BRANCH OF FISHBACK CREEK

00.70 N OF CR 400 S, Boone, IN

Built 1930 Load: 32.7 t ADT: 110

CR 950W

Fair

Over: WALNUT FORK OF SUGAR CR

00.55 N OF CR 100 S, Boone, IN

Built 1960 Load: 32.7 t ADT: 120

CR 900E

Fair

Over: MOUNTS RUN

00.01 N OF CR 150 S, Boone, IN

Built 1970 Load: 32.7 t ADT: 1,230

CR 550S

Fair

Over: FISHBACK CREEK

00.45 W OF CR 800 E, Boone, IN

Built 1965 Load: 32.7 t ADT: 2,010

PERRY-WORTH ROAD

Fair

Over: PRAIRIE CREEK

00.25 S OF CR 100 S, Boone, IN

Built 1965 Load: 32.7 t ADT: 740

INDIANAPOLIS AVE.

Fair

Over: PRAIRIE CREEK

00.01 SW I-65, Boone, IN

Built 1965 Load: 32.7 t ADT: 1,390

INDIANAPOLIS AVE.

Fair

Over: PRAIRIE CREEK

00.01 SW I-65, Boone, IN

Built 1965 Load: 32.7 t ADT: 1,390

N MERIDIAN STREET

Fair

Over: PRAIRIE CREEK

00.10 N OF ROYAL STREET, Boone, IN

Built 2002 Load: 32.7 t ADT: 420

E FORDICE STREET

Fair

Over: PRAIRIE CREEK

00.01 W OF PARK STREET, Boone, IN

Built 2008 Load: 32.7 t ADT: 790

CR 300S

Fair

Over: JACKSON RUN

00.60 W OF CR 975 E, Boone, IN

Built 1950 Load: 32.7 t ADT: 2,410

SR 25

Fair

Over: UNT BRIDGE CREEK

00.60 N US 421, Carroll, IN

Built 2013 Load: 32.7 t ADT: 9,400

WASHINGTON ST

Fair

Over: OLD ERIE CANAL

00.51 N of SR 25, Carroll, IN

Built 1901 Load: 32.7 t ADT: 1,091

CR 800W

Fair

Over: WILDCAT Creek

00.46 N of CR 650 S, Carroll, IN

Built 1952 Load: 32.7 t ADT: 246

CR 500E

Fair

Over: WILDCAT Creek

00.39 S of CR 350 S, Carroll, IN

Built 1993 Load: 32.7 t ADT: 107

CR 1025N

Fair

Over: LITTLE ROCK CREEK

00.02 W of CR 175 W, Carroll, IN

Built 1930 Load: 32.7 t ADT: 181

OLD SR25 / CICOTT

Fair

Over: GOOSE CREEK

00.53 S OF US 24, Cass, IN

Built 2001 Load: 32.7 t ADT: 8,825

CR 925E

Fair

Over: GOOSE CREEK

00.55 N OF CR 350 N, Cass, IN

Built 1988 Load: 32.7 t ADT: 290

CR 725W

Fair

Over: CROOKED CREEK

00.30 N OF CR 300 N, Cass, IN

Built 1986 Load: 32.7 t ADT: 110

CR 450 EAST

Fair

Over: EEL RIVER

00.50 S OF CR 75 N, Cass, IN

Built 1967 Load: 32.7 t ADT: 1,810

CR 150N

Fair

Over: EEL RIVER

00.20 W OF CR 600 E, Cass, IN

Built 1985 Load: 32.7 t ADT: 590

CR 200 NORTH

Fair

Over: TICK CREEK

01.00 W OF CR 450 E, Cass, IN

Built 1982 Load: 32.7 t ADT: 130

PERRYSBURG ROAD

Fair

Over: TICK CREEK

00.10 E OF CR 300 E, Cass, IN

Built 1976 Load: 32.7 t ADT: 260

CR 150 NORTH

Fair

Over: TICK CREEK

00.25 W OF CR 350 E, Cass, IN

Built 1981 Load: 32.7 t ADT: 130

CR 600 EAST

Fair

Over: WABASH RIVER

00.85 N OF CR 125 S, Cass, IN

Built 1981 Load: 32.7 t ADT: 1,910

CR 600 SOUTH

Fair

Over: BIG ROCK CREEK

00.40 W OF CR 500 E, Cass, IN

Built 1979 Load: 32.7 t ADT: 260

CR 400 EAST

Fair

Over: BIG ROCK CREEK

00.10 S OF CR 600 S, Cass, IN

Built 1980 Load: 32.7 t ADT: 110

CR 350S

Fair

Over: LITTLE DEER CREEK

00.40 W OF CR 925 E, Cass, IN

Built 1976 Load: 32.7 t ADT: 130

Showing 5,851-5,900 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.