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

US 31 SB

Unknown

Over: SR 38

06.74 N SR 431, Hamilton, IN

Built 2012 ADT: 7,401

CAMPUS PARKWAY

Unknown

Over: I-69 SB

04.31 S SR 13, Hamilton, IN

Built 1966 ADT: 30,360

106TH STREET EB

Unknown

Over: I-69 SBL

03.74 N I-465, Hamilton, IN

Built 2016 ADT: 59,011

106TH STREET WB

Unknown

Over: I-69 SBL

03.74 N I-465, Hamilton, IN

Built 2016 ADT: 59,011

116TH STREET

Unknown

Over: I-69 SB CD

04.90 N I-465, Hamilton, IN

Built 1969 ADT: 18,910

CUMBERLAND ROAD

Unknown

Over: I-69 SBL

00.53 N SR 37, Hamilton, IN

Built 1969 ADT: 30,360

126TH STREET

Unknown

Over: I-69 NBL

02.06 N SR 37, Hamilton, IN

Built 2011 ADT: 37,756

BROOKS SCHOOL ROAD

Unknown

Over: I-69 NBL

03.56 N SR 37, Hamilton, IN

Built 1966 ADT: 34,450

CYNTHEANNE ROAD

Unknown

Over: I-69 SBL

02.03 S SR 13, Hamilton, IN

Built 1966 ADT: 27,882

RAMP US 31S-I465E

Unknown

Over: RAMP NB MERIDIAN to I-46

0.12 W MERIDIAN ST, Hamilton, IN

Built 2016 ADT: 3,745

RAMP US31S - I465E

Unknown

Over: NB MERIDIAN ST

0.12 S I-465, Hamilton, IN

Built 2016 ADT: 26,360

ABANDONED RAMP

Unknown

Over: SB NORTH MERIDIAN ST

03.89 E US 421, Hamilton, IN

Built 1993 ADT: 26,389

I-465 EB

Unknown

Over: NB NORTH MERIDIAN ST

03.89 E US 421, Hamilton, IN

Built 1966 ADT: 26,360

I-465 WB

Unknown

Over: NB NORTH MERIDIAN ST

03.89 E US 421, Hamilton, IN

Built 1966 ADT: 26,360

I-465 WB RAMP

Unknown

Over: SB NORTH MERIDIAN ST

03.89 E US 421, Hamilton, IN

Built 1993 ADT: 26,389

SPRING MILL ROAD

Unknown

Over: I465 EB

00.39 W US 31, Hamilton, IN

Built 1992 ADT: 129,314

RAMP I465E - US31N

Unknown

Over: MERIDIAN ST SB

0.1 N 96TH ST, Hamilton, IN

Built 2016 ADT: 26,389

RAMP I465 W-US31 N

Unknown

Over: RAMP TO 106TH ST

0.25 N I-465, Hamilton, IN

Built 2016 ADT: 7,111

RAMP I465E - US31N

Unknown

Over: RAMP I-465 WB to MERIDIA

0.12 E MERIDIAN ST, Hamilton, IN

Built 2016 ADT: 10,144

OLIO ROAD

Unknown

Over: I-69 SBL

04.13 S SR 13, Hamilton, IN

Built 2010 ADT: 30,120

126th STREET

Unknown

Over: SR 37 SBL

0.52 N I-69 SBL, Hamilton, IN

Built 2021 ADT: 14,435

131st STREET

Unknown

Over: SR 37 NBL

1.02 N I-69 SBL, Hamilton, IN

Built 2022 ADT: 20,360

146th STREET

Unknown

Over: SR 37 SBL

2.54 N I-69 SBL, Hamilton, IN

Built 2022 ADT: 17,645

US 31 NB

Unknown

Over: E 181ST ST

03.13 S SR 38, Hamilton, IN

Built 2014 ADT: 2,000

US 31 NB

Unknown

Over: WESTFIELD BLVD

2.13 S SR 32, Hamilton, IN

Built 2014 ADT: 2,647

US 31 SB

Unknown

Over: WESTFIELD BLVD

2.15 S SR 32, Hamilton, IN

Built 2015 ADT: 2,647

US 31 NB

Unknown

Over: 151ST STREET

00.50 N 146TH STREET, Hamilton, IN

Built 2013 ADT: 6,186

161ST STREET

Unknown

Over: US 31 NB

1.45 S SR 32, Hamilton, IN

Built 2014 ADT: 29,230

US 31 NB

Unknown

Over: E 156TH ST

1.96 S SR 32, Hamilton, IN

Built 2014 ADT: 2,020

US 31 SB

Unknown

Over: E 156TH STREET

1.96 S SR 32, Hamilton, IN

Built 2015 ADT: 26,205

US 31 NB

Unknown

Over: E 169TH ST

00.69 S SR 32, Hamilton, IN

Built 2014 ADT: 4,000

US 31 SB

Unknown

Over: E 169TH ST

0.69 S SR 32, Hamilton, IN

Built 2015 ADT: 4,000

US 31 NB

Unknown

Over: SR 32

03.65 S SR 38, Hamilton, IN

Built 2015 ADT: 19,685

US 31 NB

Unknown

Over: 191ST ST EB

01.60 N SR 32, Hamilton, IN

Built 2015 ADT: 5,104

SR 37 SB

Unknown

Over: 116TH ST RAMP

04.13 S SR 238, Hamilton, IN

Built 2013 ADT: 3,914

US 31 SB

Unknown

Over: SR 32

03.65 S SR 38, Hamilton, IN

Built 2015 ADT: 10,097

US 31 SB

Unknown

Over: 181ST STREET

03.13 S SR 38, Hamilton, IN

Built 2014 ADT: 2,000

US 31 SB

Unknown

Over: EB 191ST STREET

01.60 N SR 32, Hamilton, IN

Built 2015 ADT: 3,839

US 31 SB

Unknown

Over: 151ST STREET

02.48 S SR 32, Hamilton, IN

Built 2013 ADT: 17,000

111TH ST

Unknown

Over: US 31 SB

1.29 N I-465, Hamilton, IN

Built 2015 ADT: 39,335

US 31 NB

Unknown

Over: 106TH ST WB

0.78 N I-465, Hamilton, IN

Built 2015 ADT: 5,993

US 31 SB

Unknown

Over: EB 106TH ST

0.78 N I-465, Hamilton, IN

Built 2016 ADT: 6,815

W CARMEL DR

Unknown

Over: US 31 SB

2.84 N I-465, Hamilton, IN

Built 2015 ADT: 29,815

W MAIN ST

Unknown

Over: US 31 SB

3.29 N I-465, Hamilton, IN

Built 2015 ADT: 54,780

US 31 NB

Unknown

Over: EB 136TH ST

0.91 S RANGELINE RD, Hamilton, IN

Built 2015 ADT: 4,000

US 31 SB

Unknown

Over: 136TH ST WB

4.28 N I-465, Hamilton, IN

Built 2015 ADT: 4,000

RAMP US31S - I465

Unknown

Over: MERIDIAN ST SB RAMP

0.72 N I-465, Hamilton, IN

Built 2016 ADT: 6,058

US 31 NB

Unknown

Over: RANGELINE ROAD

00.55 S SR 431, Hamilton, IN

Built 2012 ADT: 8,035

US 31 SB

Unknown

Over: RANGELINE ROAD EB

5.19 N I-465, Hamilton, IN

Built 2012 ADT: 3,798

SR 431 SB

Unknown

Over: US 31 NB RAMP

00.30 S US 31, Hamilton, IN

Built 2012 ADT: 11,129

Showing 551-600 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.