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

US 6

Fair

Over: BR. MARBERGER DITCH

00.03 E JCT SR 106, Marshall, IN

Built 1978 Load: 21.7 t ADT: 10,176

CR 500 EAST

Fair

Over: SQUIRREL CREEK

0.30 N of CR 1300 N, Miami, IN

Built 1925 Load: 21.7 t ADT: 100

CR 400 WEST

Fair

Over: SOUTH FORK DEER CREEK

0.10 N OF CR 1350 S, Miami, IN

Built 1980 Load: 21.7 t ADT: 255

THAT ROAD

Fair

Over: BRANCH CLEAR CREEK

00.10 W VICTOR PARK, Monroe, IN

Built 1960 Load: 21.7 t ADT: 4,050

CR 700E

Fair

Over: BRANCH OF KEMPER DITCH

00.30 N 1275 N, Porter, IN

Built 1963 Load: 21.7 t ADT: 1,710

CR 275E

Fair

Over: BUCKHORN CREEK

00.12 S of CR 1350 N, Spencer, IN

Built 1989 Load: 21.7 t ADT: 60

CARLISLE-PLEASANT

Fair

Over: BRANCH OF SPENCER CREEK

00.60 E OF CR 750 E, Sullivan, IN

Built 1965 Load: 21.7 t ADT: 2,520

CR 50N

Fair

Over: BRANCH OF TURTLE CREEK

00.42 E OF CR 700 W, Sullivan, IN

Built 1970 Load: 21.7 t ADT: 110

GENTRY ROAD

Fair

Over: BARREN FORK

00.40 MI W OF ELLIS RD, Warrick, IN

Built 1987 Load: 21.7 t ADT: 140

EAMES STATION ROAD

Fair

Over: COLES CREEK

01.31 MI N SR 62, Warrick, IN

Built 1988 Load: 21.7 t ADT: 135

SR 38

Fair

Over: NOLANDS BRANCH

01.43 W US 35, Wayne, IN

Built 1957 Load: 21.7 t ADT: 2,928

CR 300W

Fair

Over: ROCK CREEK

00.10 N OF CR 200 S, Wells, IN

Built 1986 Load: 21.7 t ADT: 1,022

CR 420S

Fair

Over: WILSON CREEK

00.20 SE of SR 1, Fayette, IN

Built 1930 Load: 21.8 t ADT: 10

ARBOR ST

Fair

Over: HIGHLAND CREEK

00.33 S OF TROY AVE, Marion, IN

Built 1989 Load: 21.8 t ADT: 1,063

Country Cross Rd

Fair

Over: Branch of Black River

00.07 MI N of Mulkey Rd, Posey, IN

Built 1999 Load: 21.8 t ADT: 149

COLDWATER RD

Fair

Over: BECKETT RUN

00.20 N TILL RD, Allen, IN

Built 2002 Load: 21.9 t ADT: 10,000

CR 1400 EAST

Fair

Over: PEARCE DITCH

0.20 S OF CR 700 S, Clinton, IN

Built 1938 Load: 21.9 t ADT: 204

NEW COLUMBUS AVE

Fair

Over: SUGAR RUN

00.10 N CR 500 S, Madison, IN

Built 1964 Load: 21.9 t ADT: 4,255

CR 375 W

Fair

Over: THOMPSON DITCH

0.1 MI S CR 1000 S, Newton, IN

Built 1972 Load: 21.9 t ADT: 143

CR 101

Fair

Over: Middle Fork Anderson Rv

00.80 N of CR 28(Sulphur, Perry, IN

Built 1992 Load: 21.9 t ADT: 105

CR 600 NORTH

Fair

Over: DRY FORK CREEK

00.80 W OF CR 600 W, Shelby, IN

Built 1977 Load: 21.9 t ADT: 150

SEILER RD

Fair

Over: SCHMIDT DRAIN

00.01 E HARTZELL ROAD, Allen, IN

Built 1960 Load: 22.0 t ADT: 1,841

CR 450S

Fair

Over: EAST FORK WHITE CREEK

00.77 W OF CR 550 W, Bartholomew, IN

Built 1980 Load: 22.0 t ADT: 1,670

CR 800 N

Fair

Over: BRANCH N FORK PRAIRIE CR

00.17 W of CR 1000 E, Daviess, IN

Built 1981 Load: 22.0 t ADT: 463

CR 575E

Fair

Over: SOUTH FORK PRAIRIE CREEK

00.79 N of CR 350 N, Daviess, IN

Built 1990 Load: 22.0 t ADT: 141

SR 56

Fair

Over: DRAINAGE DITCH

03.83 E SR 545, Dubois, IN

Built 1989 Load: 22.0 t ADT: 2,782

ACKERMAN Rd

Fair

Over: MILL Creek

00.90 W of PORTERSVILLE R, Dubois, IN

Built 1930 Load: 22.0 t ADT: 114

CR 38

Fair

Over: MCALLISTER DITCH

00.30 E OF CR 43, Elkhart, IN

Built 1960 Load: 22.0 t ADT: 2,750

SCHOOL HOUSE Rd

Fair

Over: Branch of SUGAR MILL Cr

00.40 NE of Jct SR 341, Fountain, IN

Built 1982 Load: 22.0 t ADT: 117

281ST ST EAST

Fair

Over: CICERO CREEK

00.47 E OF SR 19, Hamilton, IN

Built 1979 Load: 22.0 t ADT: 910

CR 675E

Fair

Over: SUGAR CREEK

00.05 N OF E 950 N, Hancock, IN

Built 1887 Load: 22.0 t ADT: 240

NEW MIDDLETOWN RD

Fair

Over: LITTLE INDIAN CREEK

00.10 S OF SR 62, Harrison, IN

Built 1995 Load: 22.0 t ADT: 598

RANGELINE ROAD

Fair

Over: CLEAR CREEK

2.2 MI N OF US 24, Huntington, IN

Built 1967 Load: 22.0 t ADT: 321

SR 250

Fair

Over: NEILS CREEK

04.13 E SR 3, Jefferson, IN

Built 1968 Load: 22.0 t ADT: 606

CHURCH ROAD

Fair

Over: SNAPP CREEK

00.11 S OF STATE ROAD 67, Knox, IN

Built 1983 Load: 22.0 t ADT: 110

WART ROAD

Fair

Over: FRICK DITCH

00.40 E OF PETERSBURG ROA, Knox, IN

Built 1989 Load: 22.0 t ADT: 130

CR 600 EAST

Fair

Over: STAMPERS CREEK

0.25 N OF CR 100 N, Orange, IN

Built 1994 Load: 22.0 t ADT: 250

CR 189

Fair

Over: Cyclone Branch

01.10 S of CR 198, Perry, IN

Built 1950 Load: 22.0 t ADT: 102

CR 1300N

Fair

Over: LITTLE CALUMET RIVER

00.10 W CR 450 E, Porter, IN

Built 1963 Load: 22.0 t ADT: 310

CR 300E

Fair

Over: BRANCH SANDY CREEK

00.34 S of CR 600 N, Spencer, IN

Built 1988 Load: 22.0 t ADT: 60

SR 4

Fair

Over: POTATO CREEK

01.36 W SR 23, St. Joseph, IN

Built 1985 Load: 22.0 t ADT: 1,544

PARK ROAD ENTRY

Fair

Over: KLINE ARM DITCH

00.00 KANKAKEE FISH & WIL, Starke, IN

Built 1986 Load: 22.0 t ADT: 143

SR 156

Fair

Over: PLUM CREEK

01.72 E SR 56, Switzerland, IN

Built 1941 Load: 22.0 t ADT: 4,965

BRYANTS CREEK RD

Fair

Over: BRYANT CREEK

01.80 S US 250, Switzerland, IN

Built 2001 Load: 22.0 t ADT: 100

SR 28

Fair

Over: LITTLE WEA CREEK

04.81 W US 231, Tippecanoe, IN

Built 1989 Load: 22.0 t ADT: 824

SR 26

Fair

Over: MUD PINE CREEK

00.90 E US 41, Warren, IN

Built 1933 Load: 22.0 t ADT: 950

STEVENSON STATION

Fair

Over: PIGEON CREEK

00.67 MI N OF Old BOONVIL, Warrick, IN

Built 1958 Load: 22.0 t ADT: 1,537

OLD SR 56

Fair

Over: BR ELK CREEK

00.10 E of MOUNT Rd, Washington, IN

Built 1950 Load: 22.0 t ADT: 135

SR 105

Fair

Over: HURRICANE CREEK

02.35 N SR 114, Whitley, IN

Built 1985 Load: 22.0 t ADT: 796

CR 100S

Fair

Over: BRANCH OF MUD CREEK

00.50 W of US 41, Benton, IN

Built 1960 Load: 22.1 t ADT: 33

Showing 2,901-2,950 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.