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

I-65 SB

Unknown

Over: KNIGHT ROAD / CR 500 N

04.01 S SR-10, Jasper, IN

Built 1966 ADT: 132

US 421

Unknown

Over: FRONT STREET----MADISN I

00.42 S of SR 56, Jefferson, IN

Built 2014 ADT: 400

SR-144

Unknown

Over: SR 37 NBL

12.69 N SR-44, Johnson, IN

Built 2022 ADT: 12,320

CR 400S

Unknown

Over: I-65 SB

04.43 N SR 252, Johnson, IN

Built 1969 ADT: 27,789

CR 250S

Unknown

Over: I-65 SB

03.13 S SR 44, Johnson, IN

Built 1970 ADT: 27,789

GREENSBURG ROAD

Unknown

Over: I-65 SB

02.15 S SR 44, Johnson, IN

Built 1970 ADT: 27,789

I-65 NB

Unknown

Over: SR 44 WB

09.48 N SR 252, Johnson, IN

Built 1970 ADT: 7,554

I-65 SB

Unknown

Over: SR 44 WB

09.48 N SR 252, Johnson, IN

Built 1970 ADT: 7,554

CR 100N

Unknown

Over: I-65 SBL

00.92 N SR-44, Johnson, IN

Built 1971 ADT: 31,581

CR 300N

Unknown

Over: I-65 SB

02.67 N SR 44, Johnson, IN

Built 1971 ADT: 31,581

CR 350E, CR 400N

Unknown

Over: I-65 SB

03.81 N SR 44, Johnson, IN

Built 1971 ADT: 31,581

CR 500N

Unknown

Over: I-65 SB

04.87 N SR 44, Johnson, IN

Built 1971 ADT: 25,271

CR 600N

Unknown

Over: I-65 SB

06.02 N SR 44, Johnson, IN

Built 1971 ADT: 32,446

CR 750N

Unknown

Over: I-65 SBL

07.68 N SR 44, Johnson, IN

Built 2015 ADT: 32,525

US 41 NB

Unknown

Over: SR-441SB (OLD DECKER R)

03.05 S US 50, Knox, IN

Built 1967 ADT: 6,060

US 41 SB

Unknown

Over: SR-441 SB (OLD DECKER R)

03.05 S US 50, Knox, IN

Built 1967 ADT: 6,060

US 41 NB

Unknown

Over: MAIN STREET ROAD

01.16 N SR 441, Knox, IN

Built 1967 ADT: 118

US 41 SB

Unknown

Over: MAIN STREET ROAD

01.16 N SR 441, Knox, IN

Built 1967 ADT: 118

HART STREET

Unknown

Over: US 41 SB

01.38 N SR 441, Knox, IN

Built 1967 ADT: 10,422

US 41 NB (MIDDLE)

Unknown

Over: US 50 WB RAMP

01.20 S US 50, Knox, IN

Built 1967 ADT: 11,254

US 41 NB

Unknown

Over: WASHINGTON AVENUE

00.44 S US 50, Knox, IN

Built 1961 ADT: 60

US 41 SB

Unknown

Over: WASHINGTON AVENUE

00.44 S US 50, Knox, IN

Built 1961 ADT: 60

HILLCREST RD

Unknown

Over: US 41 SB

00.72 N US 50, Knox, IN

Built 1963 ADT: 9,180

US 50 EB

Unknown

Over: Ill SR-33

01.85 W US 41, Knox, IN

Built 1960 ADT: 115

US 50 WB

Unknown

Over: ILL SR-33

01.85 W US 41, Knox, IN

Built 1960 ADT: 115

US 50 EB

Unknown

Over: FT KNOX ROAD

01.24 W US 41, Knox, IN

Built 1961 ADT: 132

US 50 WB

Unknown

Over: FT KNOX ROAD

01.24 W US 41, Knox, IN

Built 1961 ADT: 132

OLD SR 67

Unknown

Over: US-50 WBL

00.59 W US 41, Knox, IN

Built 1961 ADT: 7,594

HILLCREST RD

Unknown

Over: US 50 WB RAMP

00.13 W US 41, Knox, IN

Built 1961 ADT: 1,500

US 50 EB

Unknown

Over: 6TH STREET NBL

01.20 W US 41, Knox, IN

Built 1961 ADT: 10,580

US 50 WB

Unknown

Over: 6TH STREET NBL

01.20 W US 41, Knox, IN

Built 1961 ADT: 10,580

US 50 EB (TOP)

Unknown

Over: US-41 NBL (MIDDLE)

01.20 E US 41, Knox, IN

Built 1967 ADT: 11,254

OLD SR 61

Unknown

Over: US-41 SBL

02.07 S US 50, Knox, IN

Built 1967 ADT: 11,253

SR 67 & US 41 RAMP

Unknown

Over: US 41 NB

05.06 S SR 550, Knox, IN

Built 1963 ADT: 3,538

SR 441

Unknown

Over: LOCAL RD-ILLINOIS

02.43 N US 41, Knox, IN

Built 1931 ADT: 118

HAZELTON ROAD

Unknown

Over: WHITE RIVER/LOCAL ROAD

00.22 N OF SR 56 / SOUTH, Knox, IN

Built 1945 ADT: 200

US 30 EB

Unknown

Over: SR 15 SB

09.12 W SR-13, Kosciusko, IN

Built 1972 ADT: 12,118

US 30 WB

Unknown

Over: SR 15 NB

09.12 W SR 13, Kosciusko, IN

Built 1972 ADT: 10,350

IN NORTHEASTERN RR

Unknown

Over: SR 3

05.62 N US 6, LaGrange, IN

Built 1993 ADT: 3,835

CR 1200W/CO LN RD

Unknown

Over: I-90 EB

01.08 E SR 13, LaGrange, IN

Built 1956 ADT: 12,464

CR 4/1150W

Unknown

Over: I-90 WB

01.59 E SR 13, LaGrange, IN

Built 1956 ADT: 11,575

CR 1000W

Unknown

Over: I-90 WB

03.11 E SR 13, LaGrange, IN

Built 1956 ADT: 11,575

CR 900W/SNYDER RD

Unknown

Over: I-90 WB

04.12 E SR 13, LaGrange, IN

Built 1956 ADT: 11,575

CR 800W/FERGUSON

Unknown

Over: I-90 WB

05.10 E SR 13, LaGrange, IN

Built 1956 ADT: 11,575

I-90 WB

Unknown

Over: CR 675W

06.12 E SR 13, LaGrange, IN

Built 1956 ADT: 12,464

CR 600W/OLNEY RD

Unknown

Over: I-90 WB

06.12 W SR 9, LaGrange, IN

Built 1956 ADT: 11,575

I-90 WB

Unknown

Over: CR 450W/CRAMPTON

04.65 W SR 9, LaGrange, IN

Built 1956 ADT: 12,464

CR 375W/BERGER RD

Unknown

Over: I-90 WB

03.89 W SR 9, LaGrange, IN

Built 1956 ADT: 11,010

CR 300W

Unknown

Over: I-90 WB

03.11 W SR 9, LaGrange, IN

Built 1956 ADT: 11,010

I-90 RAMP TO SR 9

Unknown

Over: I-90 EBL

00.34 W SR 9, LaGrange, IN

Built 1956 ADT: 24,466

Showing 751-800 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.