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

MILLS RD

Good

Over: MILHOUSE CREEK

00.17 E OF MENDENHALL RD, Marion, IN

Built 2001 Load: 32.7 t ADT: 2,212

MANN RD

Good

Over: SWAMP CREEK

00.05 N OF RALSTON RD, Marion, IN

Built 1991 Load: 32.7 t ADT: 6,394

BLUFF ROAD

Good

Over: CHURCHMAN DITCH

00.45 SW OF SOUTHPORT RD, Marion, IN

Built 2001 Load: 32.7 t ADT: 15,342

BELMONT STREET

Good

Over: ORME DITCH

00.15 N OF STOP 11 ROAD, Marion, IN

Built 1998 Load: 32.7 t ADT: 877

SHELBYVILLE RD

Good

Over: LITTLE BUCK CREEK

00.30 SE OF ARLINGTON AVE, Marion, IN

Built 2008 Load: 32.7 t ADT: 5,114

ACTON ROAD

Good

Over: UNNAMED DITCH

00.05 N OF SOUTHPORT ROAD, Marion, IN

Built 1980 Load: 32.7 t ADT: 6,465

MCGREGOR ROAD

Good

Over: WILDCAT RUN

00.05 N OF MCGREGOR ROAD, Marion, IN

Built 1973 Load: 32.7 t ADT: 976

PIKE PLAZA RD

Good

Over: FALCON CREEK

00.30 SW OF LAFAYETTE RD, Marion, IN

Built 1978 Load: 32.7 t ADT: 38,654

56TH STREET EB

Good

Over: FALL CREEK

00.75 E SR 37, Marion, IN

Built 1980 Load: 32.7 t ADT: 10,577

CHURCHMAN BYPASS

Good

Over: SLOAN CREEK

00.10 E OF ARLINGTON AVE, Marion, IN

Built 1970 Load: 32.7 t ADT: 4,932

CHASE ST

Good

Over: HIGHLAND CREEK

00.40 S OF TROY AVE, Marion, IN

Built 1989 Load: 32.7 t ADT: 1,063

KILLDEER DR

Good

Over: LITTLE BUCK CREEK

00.05 N OF SOUTHPORT RD, Marion, IN

Built 1991 Load: 32.7 t ADT: 562

PROMONTORY RD

Good

Over: NORTH FORK DRY BRANCH

00.05 S OF 86TH ST, Marion, IN

Built 1993 Load: 32.7 t ADT: 215

RIVER RD

Good

Over: CARMEL CREEK

00.30 N I-465, Marion, IN

Built 1997 Load: 32.7 t ADT: 12,889

BRIDGEPORT RD

Good

Over: STERLING RUN N CHANNEL

01.55 N WEIR COOK MEM DR, Marion, IN

Built 1996 Load: 32.7 t ADT: 2,518

COUNTY LINE RD S

Good

Over: TROTTER CREEK

00.05 E OF RACEWAY RD, Marion, IN

Built 2000 Load: 32.7 t ADT: 2,691

86TH ST

Good

Over: NORTH FORK DRY BRANCH

00.30 E OF OAKLANDON RD, Marion, IN

Built 2002 Load: 32.7 t ADT: 6,332

LONG RUN DR

Good

Over: LITTLE EAGLE CREEK

00.47 E OF GEORGETOWN RD, Marion, IN

Built 2000 Load: 32.7 t ADT: 287

COUNTRYSIDE DR

Good

Over: JULIA CREEK

00.60 S OF MORRIS ST, Marion, IN

Built 1975 Load: 32.7 t ADT: 287

MORRIS ST

Good

Over: JULIA CREEK

00.75 W OF GIRLS SCHOOL R, Marion, IN

Built 2005 Load: 32.7 t ADT: 13,310

PENNSYLVANIA ST

Good

Over: HIGHLAND CREEK

00.10 W OF MADISON AVE, Marion, IN

Built 1950 Load: 32.7 t ADT: 991

SHANNON LAKES LN

Good

Over: CHURCHMAN DITCH

00.10 E OF BLUFF RD, Marion, IN

Built 2002 Load: 32.7 t ADT: 277

SHANNON LAKES DR

Good

Over: CHURCHMAN DITCH

00.25 E OF BLUFF ROAD, Marion, IN

Built 2002 Load: 32.7 t ADT: 300

HARTINGTON PL

Good

Over: WILDCAT RUN

00.10 S OF SOUTHPORT RD, Marion, IN

Built 2004 Load: 32.7 t ADT: 297

FLAT BRANCH DR

Good

Over: FLAT BRANCH

00.15 N OF FRY RD, Marion, IN

Built 2005 Load: 32.7 t ADT: 310

HICKORY ROAD

Good

Over: RAYBOURN DITCH

00.20 N OF MCGREGOR ROAD, Marion, IN

Built 1975 Load: 32.7 t ADT: 786

86TH ST

Good

Over: NORTH FORK DRY BRANCH

00.20 W OF CARROLL RD, Marion, IN

Built 2002 Load: 32.7 t ADT: 6,332

AIRPORT SPEED RAMP

Good

Over: PEDESTRIAN ACCESS

01.45 NE PERIMETER RD, Marion, IN

Built 2008 Load: 32.7 t ADT: 3,475

AIRPORT ACCESS N

Good

Over: PARKING AREA

01.53 NE PERIMETER RD, Marion, IN

Built 2008 Load: 32.7 t ADT: 3,475

FRANKLIN ROAD

Good

Over: FLAT BRANCH

00.01 S OF FRYE ROAD, Marion, IN

Built 2012 Load: 32.7 t ADT: 7,208

KEYSTONE AVENUE

Good

Over: FALL CREEK OVERFLOW

00.48 S OF 46TH STREET, Marion, IN

Built 2014 Load: 32.7 t ADT: 25,289

BLACK LOCUST DRIVE

Good

Over: O'BRIAN DITCH

00.10 S 38TH STREET, Marion, IN

Built 1995 Load: 32.7 t ADT: 598

MARIO CREEK CIRCLE

Good

Over: MARIO CREEK

00.03 S OF MARIO CREEK DR, Marion, IN

Built 2001 Load: 32.7 t ADT: 99

WIGEON DRIVE

Good

Over: MARIO CREEK

00.09 N OF MALLARD GREEN, Marion, IN

Built 2001 Load: 32.7 t ADT: 497

86TH STREET

Good

Over: OIL CREEK

0.15 E GEORGETOWN ROAD, Marion, IN

Built 1994 Load: 32.7 t ADT: 26,920

EVANSTON AVE

Good

Over: BAILEY CREEK

00.10 N OF 65TH ST, Marion, IN

Built 2016 Load: 32.7 t ADT: 7,950

PAGODA DRIVE

Good

Over: PLEASANT RUN

00.12 S OF RAYMOND ST, Marion, IN

Built 2019 Load: 32.7 t ADT: 2,617

SHERIDAN AVE

Good

Over: POGUE'S RUN

00.17 N OF 38TH ST, Marion, IN

Built 2021 Load: 32.7 t ADT: 2,000

WESTBROOK AVE

Good

Over: NEELD DITCH

00.05 N OF MORRIS ST, Marion, IN

Built 2022 Load: 32.7 t ADT: 3,589

21ST ST

Good

Over: LICK CREEK

0.05 MI W OF POST RD, Marion, IN

Built 1972 Load: 32.7 t ADT: 13,888

US 6

Good

Over: SHERMAN-EMMONS DITCH

02.72 W US 31, Marshall, IN

Built 2007 Load: 32.7 t ADT: 4,488

SR 331

Good

Over: BROCK DITCH

03.08 N US 30, Marshall, IN

Built 2006 Load: 32.7 t ADT: 3,744

BAKER STREET

Good

Over: YELLOW RIVER

00.20 E OF MICHIGAN STREE, Marshall, IN

Built 2004 Load: 32.7 t ADT: 2,125

N ELM ROAD

Good

Over: DAUSMAN DITCH

00.60 S OF E 6TH ROAD, Marshall, IN

Built 1998 Load: 32.7 t ADT: 100

GLENN OVERMYER DR.

Good

Over: YELLOW RIVER

00.40 E OF SR 17, Marshall, IN

Built 2000 Load: 32.7 t ADT: 2,725

GLENN OVERMYER DR.

Good

Over: OXBOW WETLANDS

00.60 E OF SR 17, Marshall, IN

Built 2000 Load: 32.7 t ADT: 2,625

WEST 13TH ROAD

Good

Over: YELLOW RIVER

00.40 W OF MUCKSHAW ROAD, Marshall, IN

Built 2011 Load: 32.7 t ADT: 525

NORTH HICKORY ROAD

Good

Over: YELLOW RIVER

00.10 N OF E 8TH ROAD, Marshall, IN

Built 2018 Load: 32.7 t ADT: 100

SR 550

Good

Over: POPLAR CREEK

03.58 E US 50, Martin, IN

Built 1999 Load: 32.7 t ADT: 424

MOUNT OLIVE ROAD

Good

Over: INDIAN CREEK

0.01 E OF LOW GAP ROAD, Martin, IN

Built 1988 Load: 32.7 t ADT: 63

Showing 13,251-13,300 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.