State profile · Below national median SD

Indiana bridge safety

Condition ratings, load ratings, and structural-deficiency data for every public highway bridge in Indiana — drawn straight from the FHWA National Bridge Inventory.

18,630
Public bridges
36.1%
Good condition
4.9%
Poor condition
4.9%
Structurally deficient

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 rated 0-4

Structurally Deficient

4.9%

920 bridges flagged for repair priority

-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 — Structurally deficient 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 on the structurally deficient leaderboard (lower share = better)

States are ranked by share of bridges flagged structurally deficient — the FHWA classification for any span where deck, superstructure, or substructure carries a condition rating of 4 or below. Lower percentages indicate stronger maintenance funding and inspection follow-through. States here sit immediately above and below Indiana on the same metric.

05

Arkansas

4.71% top marginal rate
Structure
Progressive
Burden @ $100K
$5,544

53

Washington

4.81% top marginal rate
Structure
Progressive
Burden @ $100K
$8,808
Selected

18

Indiana

4.94% top marginal rate
Structure
Progressive
Burden @ $100K
$18,630

20

Kansas

5.25% top marginal rate
Structure
Progressive
Burden @ $100K
$23,867

56

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 composite NBI rating. Each is inspected at least every 24 months.

All Bridges in Indiana

NAVILLETON Rd

Fair

Over: Little INDIAN Creek

00.30 S of REASOR Rd, Floyd, IN

Built 1974 Load: 28.5 t ADT: 1,230

SR 32

Fair

Over: BRANCH PRAIRIE CREEK

03.21 W US 41, Fountain, IN

Built 1968 Load: 28.5 t ADT: 292

SR 32

Fair

Over: FORK PRAIRIE CREEK

00.25 E US 41, Fountain, IN

Built 1995 Load: 28.5 t ADT: 815

SR 55

Fair

Over: LITTLE SHAWNEE CREEK

00.65 N SR 341, Fountain, IN

Built 1997 Load: 28.5 t ADT: 460

SR 64

Fair

Over: EAST FORK KEG CREEK

00.17 E SR 57, Gibson, IN

Built 1929 Load: 28.5 t ADT: 14,759

CR 750E

Fair

Over: HOPPAS DITCH

00.08 MI N of CR 1200 S, Grant, IN

Built 1955 Load: 28.5 t ADT: 110

1ST ST

Fair

Over: BOOTS CREEK

00.13 MI W of WASHINGTON, Grant, IN

Built 1920 Load: 28.5 t ADT: 7,210

CR 550 SOUTH

Fair

Over: FOUR MILE CREEK

0.40 E OF CR 700 W, Greene, IN

Built 2002 Load: 28.5 t ADT: 110

156TH ST WEST

Fair

Over: LITTLE EAGLE CREEK

00.16 E OF JOLIET RD, Hamilton, IN

Built 1986 Load: 28.5 t ADT: 340

OAK RD

Fair

Over: COOL CREEK

00.11 S OF SR 32, Hamilton, IN

Built 2002 Load: 28.5 t ADT: 4,520

WESTFIELD BLVD

Fair

Over: BRANCH OF COOL CREEK

00.18 S OF 161ST ST, Hamilton, IN

Built 2002 Load: 28.5 t ADT: 3,800

CRANDALL BRANCH RD

Fair

Over: CRANDALL BRANCH

00.30 W OF EMILY RD, Harrison, IN

Built 1991 Load: 28.5 t ADT: 170

CR 250 NORTH

Fair

Over: WHITE CREEK

0.33 W OF CR 100 W, Jackson, IN

Built 1999 Load: 28.5 t ADT: 25

SR 14

Fair

Over: OLIVER DITCH

01.14 E US 231, Jasper, IN

Built 1982 Load: 28.5 t ADT: 1,696

SR 56

Fair

Over: BIG SPRING CREEK

00.11 E SR 62, Jefferson, IN

Built 1985 Load: 28.5 t ADT: 7,540

SR 135

Fair

Over: BARNES CREEK

01.88 N SR 252, Johnson, IN

Built 1940 Load: 28.5 t ADT: 6,202

DECKER ROAD

Fair

Over: MUDDY RUN

00.24 N OF BLOEBAUM ROAD, Knox, IN

Built 1950 Load: 28.5 t ADT: 130

SR 15

Fair

Over: CSX RR

01.45 S US 6, Kosciusko, IN

Built 1976 Load: 28.5 t ADT: 9,769

SR 19

Fair

Over: DANNER DITCH

03.42 N US 30, Kosciusko, IN

Built 1990 Load: 28.5 t ADT: 964

US 12

Fair

Over: LAKE GEORGE CANAL

00.51 W US 20, Lake, IN

Built 1987 Load: 28.5 t ADT: 11,779

SR 55

Fair

Over: TULLY DITCH

06.01 S SR 2, Lake, IN

Built 1988 Load: 28.5 t ADT: 370

SR 55

Fair

Over: MAIN BEAVER DAM DITCH

01.40 N US 231, Lake, IN

Built 1985 Load: 28.5 t ADT: 24,373

SR 8

Fair

Over: PITNER DITCH

02.24 E US 421, LaPorte, IN

Built 1993 Load: 28.5 t ADT: 1,922

I-465 WB

Fair

Over: WHITE RIVER

01.97 W SR 37, Marion, IN

Built 1959 Load: 28.5 t ADT: 55,711

LYNHURST DR

Fair

Over: BIG EAGLE CREEK

00.12 S OF 10TH ST, Marion, IN

Built 1958 Load: 28.5 t ADT: 23,734

SR 218

Fair

Over: BIG PIPE CREEK

03.58 W SR 19, Miami, IN

Built 1970 Load: 28.5 t ADT: 377

ELLIS ROAD

Fair

Over: LITTLE PIPE CREEK

0.00 E OF FLORA, Miami, IN

Built 1983 Load: 28.5 t ADT: 650

SR 46

Fair

Over: SIX MILE CREEK

03.61 W SR 246, Owen, IN

Built 1934 Load: 28.5 t ADT: 2,803

SR 65

Fair

Over: LITTLE CONGER CREEK

00.32 S SR 56, Pike, IN

Built 1986 Load: 28.5 t ADT: 647

US 20

Fair

Over: CSX RR

01.30 W SR 249, Porter, IN

Built 1931 Load: 28.5 t ADT: 9,928

CR 700S

Fair

Over: PHILLIPS DITCH

00.10 W CR 150 W, Porter, IN

Built 1973 Load: 28.5 t ADT: 30

CR 900N

Fair

Over: BRANCH DAMON RUN

00.30 W CR 100W, Porter, IN

Built 1965 Load: 28.5 t ADT: 1,690

Lamont Rd

Fair

Over: McFadden Creek

00.05 MI S of HIGHWAY 62, Posey, IN

Built 1976 Load: 28.5 t ADT: 172

CR 200N

Fair

Over: BIG MONON DITCH

00.48 W OF SR 39, Pulaski, IN

Built 1959 Load: 28.5 t ADT: 130

CR 100E

Fair

Over: GREENS FORK

01.00 MI N OF CR 1000 S, Randolph, IN

Built 1981 Load: 28.5 t ADT: 107

I-74 EB

Fair

Over: LITTLE BLUE RIVER

00.65 W SR 44, Shelby, IN

Built 1959 Load: 28.5 t ADT: 16,395

CR 450 S

Fair

Over: BUSSERON CREEK

00.33 E OF CR 275 W, Sullivan, IN

Built 1976 Load: 28.5 t ADT: 140

CR 500 N

Fair

Over: SUGAR CREEK

00.27 E OF CR 200 W, Sullivan, IN

Built 1976 Load: 28.5 t ADT: 110

CR 1150S

Fair

Over: Wea Creek

00.18 W of US 231, Tippecanoe, IN

Built 1994 Load: 28.5 t ADT: 301

CR 1300S

Fair

Over: Shawnee Creek

00.74 E of CR 800 W, Tippecanoe, IN

Built 1964 Load: 28.5 t ADT: 47

SR 124

Fair

Over: TREATY CREEK

00.91 E SR 15, Wabash, IN

Built 1987 Load: 28.5 t ADT: 2,044

COX FERRY Rd

Fair

Over: TWIN Creek

00.40 W of STARR Rd, Washington, IN

Built 1978 Load: 28.5 t ADT: 112

HERITAGE CHAPEL RD

Fair

Over: BR W FK BLUE RIVER

00.80 S of SR 56, Washington, IN

Built 1987 Load: 28.5 t ADT: 282

SR 116

Fair

Over: MARKLEY DITCH

00.97 E SR 1, Wells, IN

Built 1995 Load: 28.5 t ADT: 2,287

US 231

Fair

Over: JOHN RAYMOND DITCH

02.12 S SR 18, White, IN

Built 1930 Load: 28.5 t ADT: 2,172

SALEM RD (OLD US 3

Fair

Over: BORUM RUN

0.50 MILES NW OF CR 200 E, Adams, IN

Built 1934 Load: 28.6 t ADT: 8,247

CR 750S

Fair

Over: Br MIDDLE Fk WILDCAT Cr

00.12 E of SR 75, Carroll, IN

Built 1960 Load: 28.6 t ADT: 86

SR 60

Fair

Over: PACKWOOD BRANCH

02.47 E SR 335, Clark, IN

Built 1937 Load: 28.6 t ADT: 7,495

CR 600S

Fair

Over: Lafferty Ditch

00.30 W of CR 300 W, Clay, IN

Built 2002 Load: 28.6 t ADT: 179

CR 800N

Fair

Over: FINLEY-MANARD DITCH

00.15 W CR 825 W, Delaware, IN

Built 1985 Load: 28.6 t ADT: 20

Showing 4,351-4,400 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 Editorial.

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). A "structurally deficient" rating is a repair-priority signal, not a closure or unsafe-to-cross designation. Consult a qualified civil engineer before making decisions based on this data.