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-74 EB

Unknown

Over: STOUT ROAD

02.02 E US 52, Dearborn, IN

Built 1960 ADT: 1,692

I-74 WB

Unknown

Over: STOUT ROAD

02.02 E US 52, Dearborn, IN

Built 1960 ADT: 1,692

I-275 SB

Unknown

Over: US 50 CONNECTOR

01.27 N KY LN, Dearborn, IN

Built 1975 ADT: 10,874

I-275 NB

Unknown

Over: AUCTION LANE

01.34 N US 50, Dearborn, IN

Built 1974 ADT: 132

I-275 SB

Unknown

Over: AUCTION LANE

01.34 N US 50, Dearborn, IN

Built 1974 ADT: 132

US 50 WB

Unknown

Over: SERVICE RD

02.97 E SR-148, Dearborn, IN

Built 2009 ADT: 132

SR 3

Unknown

Over: I-74 WB

01.53 N US 421, Decatur, IN

Built 1962 ADT: 8,249

CR 700 NORTH

Unknown

Over: I-74 WB

06.68 W US 421, Decatur, IN

Built 1961 ADT: 10,341

CR 420W

Unknown

Over: I-74 WB

03.75 W US 421, Decatur, IN

Built 1961 ADT: 10,341

CR 100W

Unknown

Over: I-74 WB

01.03 W SR 3, Decatur, IN

Built 1961 ADT: 9,256

CR NE 80

Unknown

Over: I-74 WB

02.08 E SR 3, Decatur, IN

Built 1961 ADT: 9,014

BASE ROAD

Unknown

Over: I-74 EB

03.98 E SR 3, Decatur, IN

Built 1961 ADT: 9,256

CR 600E

Unknown

Over: I-74 EB

06.83 E SR 3, Decatur, IN

Built 1961 ADT: 9,256

NEW POINT-ROSSB RD

Unknown

Over: I-74 EB

06.02 W SR 229, Decatur, IN

Built 1962 ADT: 9,256

CR 250 N

Unknown

Over: FRONTAGE ROAD

01.20 W US 421, Decatur, IN

Built 2008 ADT: 20

I-74 WB

Unknown

Over: US 421 SB

01.42 N SR 3, Decatur, IN

Built 2008 ADT: 10,341

I-74 EB

Unknown

Over: US 421 NB

01.42 N SR 3, Decatur, IN

Built 2008 ADT: 10,341

SR 4

Unknown

Over: I-69 NB

05.99 E SR 327, DeKalb, IN

Built 1963 ADT: 11,939

US 6

Unknown

Over: I-69 NB

01.81 W SR 427, DeKalb, IN

Built 1963 ADT: 14,630

OLD SR 206/CR 61

Unknown

Over: US-6

01.50 W SR 1, DeKalb, IN

Built 1997 ADT: 8,365

CSX RR

Unknown

Over: SR 327

00.99 S SR 8, DeKalb, IN

Built 2000 ADT: 9,605

CR 68

Unknown

Over: I-69 SB

06.15 S SR 8, DeKalb, IN

Built 1961 ADT: 17,453

CR 60

Unknown

Over: I-69 NB

04.16 S SR 8, DeKalb, IN

Built 1961 ADT: 16,361

CR 11 A

Unknown

Over: I-69 NBL

02.80 S SR-8, DeKalb, IN

Built 1963 ADT: 15,426

I-69

Unknown

Over: KRUISE PRIVATE DRIVE

02.02 S SR 8, DeKalb, IN

Built 2001 ADT: 1

I-69 NB

Unknown

Over: CR 48

01.12 S SR 8, DeKalb, IN

Built 1963 ADT: 4,159

I-69 SB

Unknown

Over: CR 48

01.12 S SR 8, DeKalb, IN

Built 1963 ADT: 4,159

I-69 NB

Unknown

Over: SR 8 WB

05.19 S US 6, DeKalb, IN

Built 1963 ADT: 11,934

I-69 SB

Unknown

Over: SR 8 EB

05.19 S US 6, DeKalb, IN

Built 1963 ADT: 11,934

CR 36 A

Unknown

Over: I-69 SBL

00.84 N SR 8, DeKalb, IN

Built 1963 ADT: 16,361

CR 27

Unknown

Over: I-69 SBL

01.74 S US 6, DeKalb, IN

Built 1963 ADT: 15,285

CR 28

Unknown

Over: I-69 NBL

00.98 S US 6, DeKalb, IN

Built 1963 ADT: 13,833

SR 3 NB

Unknown

Over: US 35 SB

01.29 N SR 67, Delaware, IN

Built 1973 ADT: 2,276

SR 3 SB

Unknown

Over: US 35 SB

01.29 N SR 67, Delaware, IN

Built 1973 ADT: 2,276

BURLINGTON ROAD

Unknown

Over: US 35 NB

00.85 N SR 3, Delaware, IN

Built 1973 ADT: 6,948

US 35 NB

Unknown

Over: MEMORIAL DR/E 12TH WB

03.20 N US35/29th Street, Delaware, IN

Built 1973 ADT: 1,793

US 35 SB

Unknown

Over: MEMORIAL DR (E. 12TH) WB

03.20 N US35/29th Street, Delaware, IN

Built 1973 ADT: 2,730

US 35 NB

Unknown

Over: SR 32 EB

03.51 S SR 67, Delaware, IN

Built 1973 ADT: 8,530

US 35 SB

Unknown

Over: SR 32 EB

03.51 S SR 67, Delaware, IN

Built 1973 ADT: 8,530

US 35/SR 3 NB

Unknown

Over: SR 67/BROADWAY NB

02.89 S SR 3, Delaware, IN

Built 1973 ADT: 4,811

US 35/SR 3 SB

Unknown

Over: SR 67/BROADWAY NB

02.89 S SR 3, Delaware, IN

Built 1973 ADT: 4,811

US 35 NB

Unknown

Over: OLD SR 3 NB RAMP

00.63 N SR 67, Delaware, IN

Built 1973 ADT: 1,822

US 35 SB

Unknown

Over: OLD SR 3 NB RAMP

00.63 N SR 67, Delaware, IN

Built 1973 ADT: 1,822

SR 32

Unknown

Over: I-69 NBL CD

04.49 E SR 9, Delaware, IN

Built 1962 ADT: 4,000

NB RAMP TO OLD 67

Unknown

Over: SR 67 SB

03.50 S SR 3, Delaware, IN

Built 1973 ADT: 3,321

OLD SR 3/WALNUT ST

Unknown

Over: SR 67 NBL

00.65 S SR 3, Delaware, IN

Built 1973 ADT: 4,590

SR 67 NB

Unknown

Over: SR-3 (SR-3X) NBL

01.30 S US-35, Delaware, IN

Built 1973 ADT: 3,775

SR 67 SB

Unknown

Over: SR-3 (SR-3X) SBL

01.30 S US-35, Delaware, IN

Built 1973 ADT: 3,775

CR 700S

Unknown

Over: I-69 SBL

01.54 S SR 67, Delaware, IN

Built 1963 ADT: 21,370

I-69 NB

Unknown

Over: SR 67 EBL

00.31 S SR 32, Delaware, IN

Built 1963 ADT: 7,227

Showing 301-350 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.