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 12 EB/SR 912

Unknown

Over: US 12/20 EBL

00.47 E I-90, Lake, IN

Built 1960 ADT: 8,870

169TH ST/15TH AVE

Unknown

Over: SR-912 WBL

01.06 E US-20, Lake, IN

Built 1966 ADT: 44,400

SR 912

Unknown

Over: 25TH AVE/177TH STST

00.18 W I-80, Lake, IN

Built 1960 ADT: 1,080

25TH AVE/177TH ST

Unknown

Over: SR 912 EB RMP TO I-80

00.18 W I-80, Lake, IN

Built 1997 ADT: 1,080

25TH AVE/177TH ST

Unknown

Over: I-80 W-SR 912W RAMP

00.18 W I-80, Lake, IN

Built 1997 ADT: 2,628

SR 912 EB TO I-80

Unknown

Over: I-80/94 WBL MAINLINE

00.02 W I-80, Lake, IN

Built 2000 ADT: 83,080

SR 912 WB TO I-80

Unknown

Over: I-80 WB TO SR 912 SB RMP

00.03 W I-80, Lake, IN

Built 2000 ADT: 4,500

217TH AVENUE

Unknown

Over: I-65 SBL

04.54 S SR 2, Lake, IN

Built 1966 ADT: 14,075

CR X-9/205TH AVE

Unknown

Over: I65 SBL

03.02 S SR 2, Lake, IN

Built 1964 ADT: 14,075

SR 2

Unknown

Over: I-65 NB

07.37 S US 231 N JCT, Lake, IN

Built 1964 ADT: 7,770

SR 2

Unknown

Over: I-65 SB

07.37 S US 231 N JCT, Lake, IN

Built 1964 ADT: 7,651

CR H-10/153RD AVE

Unknown

Over: I-65 SBL

03.58 N SR-2, Lake, IN

Built 1964 ADT: 17,850

CR H-4/137TH AVE

Unknown

Over: I-65 SB

01.73 S US 231, Lake, IN

Built 1964 ADT: 17,850

I-65 NB

Unknown

Over: US-231 SBL

05.38 S US-30, Lake, IN

Built 1964 ADT: 5,530

I-65 SB

Unknown

Over: US-231 SBL

05.38 S US-30, Lake, IN

Built 1964 ADT: 5,530

113TH AVENUE

Unknown

Over: I-65 SBL

01.36 N US-231, Lake, IN

Built 1965 ADT: 22,250

I-65 NB

Unknown

Over: 109TH AVENUE

01.86 N US 231, Lake, IN

Built 1965 ADT: 8,847

109th Avenue

Unknown

Over: I-65 SB

01.86 N US 231, Lake, IN

Built 1965 ADT: 8,847

E 101ST AVE

Unknown

Over: I-65 SB

02.50 S US 30, Lake, IN

Built 2021 ADT: 27,450

93RD AVENUE

Unknown

Over: I-65 SBL

01.70 S US-30, Lake, IN

Built 2000 ADT: 27,450

I-65 NB

Unknown

Over: US-30 WBL CD/RAMP

05.38 N US-231, Lake, IN

Built 1966 ADT: 3,000

I-65 SB

Unknown

Over: US-30 EBL

05.38 N US-231, Lake, IN

Built 1966 ADT: 30,220

73RD AVENUE

Unknown

Over: I-65 SB

00.94 N US 30, Lake, IN

Built 1965 ADT: 49,305

61ST AVENUE

Unknown

Over: I-65 SBL

02.51 N US-30, Lake, IN

Built 2000 ADT: 51,000

I-65 NB

Unknown

Over: 53RD AVENUE

03.53 N US-30, Lake, IN

Built 1965 ADT: 4,111

I-65 SB

Unknown

Over: 53RD AVENUE

03.53 N US-30, Lake, IN

Built 1965 ADT: 4,111

49TH AVENUE

Unknown

Over: I-65 NB

04.06 N US-30, Lake, IN

Built 1965 ADT: 4,376

49TH AVENUE

Unknown

Over: I-65 SB

04.06 N US-30, Lake, IN

Built 1965 ADT: 4,376

39TH AVENUE

Unknown

Over: I-65 NB

05.33 N US-30, Lake, IN

Built 1965 ADT: 541

39TH AVENUE

Unknown

Over: I-65 SB

05.33 N US-30, Lake, IN

Built 1965 ADT: 541

I-65 NB

Unknown

Over: 37TH AVE (OLD US 6) WBL

05.61 N US-30, Lake, IN

Built 2001 ADT: 9,290

I-65 SB

Unknown

Over: 37TH AVE (OLD US 6) WBL

05.61 N US-30, Lake, IN

Built 2001 ADT: 9,290

35TH AVENUE

Unknown

Over: I-65 NB

05.84 N US-30, Lake, IN

Built 2001 ADT: 541

35TH AVENUE

Unknown

Over: I-65 SB

05.84 N US 30, Lake, IN

Built 2001 ADT: 907

I-65 NB

Unknown

Over: CENTRAL AVENUE

00.66 N I-80, Lake, IN

Built 1965 ADT: 118

I-65 SB

Unknown

Over: CENTRAL AVENUE

00.66 N I-80, Lake, IN

Built 1965 ADT: 118

I-65 NB

Unknown

Over: 15th AVENUE

01.53 N I-80, Lake, IN

Built 1965 ADT: 14,443

I-65 SB

Unknown

Over: 15th AVENUE

01.53 N I-80, Lake, IN

Built 1965 ADT: 14,443

COLUMBIA AVENUE

Unknown

Over: I-80 (I-94) EBL

00.48 E US-41, Lake, IN

Built 1991 ADT: 96,367

I-80 RAMP 2I

Unknown

Over: SR 152 NB CD ON-RAMP

00.04 W US 41/SR 152, Lake, IN

Built 1993 ADT: 2,094

SR 152 SB TO I-80

Unknown

Over: I-80 EB RAMP

00.15 S I-80/94, Lake, IN

Built 1993 ADT: 16,000

I-80 WB RAMP "I"

Unknown

Over: I-80(I-94) WBL-CD-RAMP

00.95 E US-41, Lake, IN

Built 1992 ADT: 3,500

KENNEDY AVENUE

Unknown

Over: I-80(I-94) EBL-CD-RAMP

00.97 E US-41, Lake, IN

Built 1992 ADT: 3,500

I-80 WB RAMP "I"

Unknown

Over: KENNEDY AVENUE SBL

00.97 E US-41, Lake, IN

Built 1992 ADT: 32,900

SB RAMP TO I-80/I-

Unknown

Over: KENNEDY AVENUE SBL

00.97 E US-41, Lake, IN

Built 1992 ADT: 32,900

I-80 WB RAMP TO SR

Unknown

Over: SR-912 WBL-CD-RAMP

02.52 E US-41, Lake, IN

Built 2001 ADT: 9,903

I-80 EB/WB

Unknown

Over: SR-912 EBL

02.53 E US-41, Lake, IN

Built 2001 ADT: 40,340

I-80 EB TO SR 912

Unknown

Over: SR-912 EBL

02.54 E US-41, Lake, IN

Built 2001 ADT: 44,400

COLFAX STREET

Unknown

Over: I-80 (I-94) WBL

01.02 E SR-912, Lake, IN

Built 1994 ADT: 96,178

BURR STREET

Unknown

Over: I-80 EBL

01.51 E SR-912, Lake, IN

Built 2000 ADT: 96,230

Showing 851-900 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.