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 41 SB

Fair

Over: CSX RR

00.63 N SR 441, Knox, IN

Built 1967 Load: 24.9 t ADT: 9,615

NUGENT ROAD

Fair

Over: DESHEE RIVER

00.67 NE HICKORY COMER RO, Knox, IN

Built 1973 Load: 24.9 t ADT: 135

CR 700 SOUTH

Fair

Over: WESTLER/WITMER CHANNEL

00.05 W OF CR 150E, LaGrange, IN

Built 1930 Load: 24.9 t ADT: 1,625

US 41 NB

Fair

Over: SINGLETON DITCH

03.23 S SR 2, Lake, IN

Built 1954 Load: 24.9 t ADT: 3,527

KENNEDY AVENUE

Fair

Over: LITTLE CALUMET RIVER

00.30 S I-94, Lake, IN

Built 1955 Load: 24.9 t ADT: 24,318

HUMPBACK BRIDGE RD

Fair

Over: HENDERSON CREEK

00.75 N OF SR 446, Lawrence, IN

Built 1925 Load: 24.9 t ADT: 134

PEERLESS ROAD

Fair

Over: BRANCH OF PLEASANT RUN

00.52 N OF 1ST STREET, Lawrence, IN

Built 2005 Load: 24.9 t ADT: 1,363

CR 1100N

Fair

Over: PIPE CREEK

00.10 E SR 9, Madison, IN

Built 1930 Load: 24.9 t ADT: 1,561

I-65 SB RAMP

Fair

Over: LICK CREEK

00.16 N I-465, Marion, IN

Built 1963 Load: 24.9 t ADT: 14,181

16TH STREET

Fair

Over: FALL CREEK

00.45 W OF MLK JR. STR., Marion, IN

Built 1934 Load: 24.9 t ADT: 18,692

CR 25 WEST

Fair

Over: DEER CREEK

0.30 S OF CR 1000 S, Miami, IN

Built 1950 Load: 24.9 t ADT: 125

CR 400S

Fair

Over: TIPPECANOE RIVER

00.35 W OF COUNTY LINE RD, Noble, IN

Built 1920 Load: 24.9 t ADT: 220

CR 10 SOUTH

Fair

Over: UPPER SULPHUR CREEK

0.15 W OF CR 525 W, Orange, IN

Built 1991 Load: 24.9 t ADT: 135

US 36

Fair

Over: WILLIAMS CREEK

01.56 E US 41, Parke, IN

Built 1931 Load: 24.9 t ADT: 4,663

SR 56

Fair

Over: FLAT CREEK

03.07 E SR 61, Pike, IN

Built 1990 Load: 24.9 t ADT: 3,126

SR 243

Fair

Over: DEER CREEK

00.46 S US 40, Putnam, IN

Built 1966 Load: 24.9 t ADT: 1,148

STATE LINE ROAD

Fair

Over: GREENVILLE CREEK

04.82 MI S HWY 32, Randolph, IN

Built 1975 Load: 24.9 t ADT: 364

UNDERWOOD RD

Fair

Over: JABBER RUN

00.17 S BRIDGEWATER RD, Scott, IN

Built 2011 Load: 24.9 t ADT: 200

SR 245

Fair

Over: CROOKED CREEK

03.65 N SR 70, Spencer, IN

Built 1952 Load: 24.9 t ADT: 2,951

CR 300 N

Fair

Over: BUSSERON CREEK

00.12 W OF CR 500 E, Sullivan, IN

Built 1950 Load: 24.9 t ADT: 220

US 52 EB

Fair

Over: WABASH RIVER

00.87 W EAST JCT US 231, Tippecanoe, IN

Built 1995 Load: 24.9 t ADT: 23,479

CR 125W

Fair

Over: Haywood Ditch

00.42 N of SR 28, Tippecanoe, IN

Built 1973 Load: 24.9 t ADT: 38

JEFFERSON STREET

Fair

Over: BUCK CREEK

00.47 W MAIN STREET, Tipton, IN

Built 1956 Load: 24.9 t ADT: 7,057

HEPPLER RD

Fair

Over: BARR CREEK

00.20 N OF BASELINE RD, Vanderburgh, IN

Built 2002 Load: 24.9 t ADT: 28

WALLACE Ave

Fair

Over: THOMPSON DITCH

00.40 W FRUITRDGE, Vigo, IN

Built 1977 Load: 24.9 t ADT: 3,214

CR 650 E

Fair

Over: SIMONTON CREEK

00.20 N OF CR 1100 N, Wabash, IN

Built 1962 Load: 24.9 t ADT: 100

LITTLE YORK Rd

Fair

Over: ELK Creek

00.40 W of SCIFERS Rd, Washington, IN

Built 1974 Load: 24.9 t ADT: 338

S MAIN ST

Fair

Over: W FORK BLUE RIVER

00.10 W SR 135, Washington, IN

Built 1955 Load: 24.9 t ADT: 12,770

WILLOW GROVE RD

Fair

Over: COMMON RUN

00.50 N of TICE Rd, Wayne, IN

Built 1952 Load: 24.9 t ADT: 634

ANTWERP RD

Fair

Over: NATURAL DRAIN #3

00.03 W BULL RAPIDS ROAD, Allen, IN

Built 1958 Load: 25.0 t ADT: 1,587

CR 250S

Fair

Over: BACHELOR Run

00.26 E of CR 400 E, Carroll, IN

Built 1910 Load: 25.0 t ADT: 69

CR 68

Fair

Over: CEDAR CREEK

01.20 E OF CR 327, DeKalb, IN

Built 1966 Load: 25.0 t ADT: 1,275

CAMP MEETING RD

Fair

Over: W FK INDIAN-KENTUCK CR

00.88 E OF US 421, Jefferson, IN

Built 1935 Load: 25.0 t ADT: 100

BRILL ST

Fair

Over: HIGHLAND CREEK

00.57 N OF HANNA AVE, Marion, IN

Built 1936 Load: 25.0 t ADT: 2,856

CR 300W

Fair

Over: NATURAL Drain

00.60 S of CR 1000 N, Vermillion, IN

Built 2003 Load: 25.0 t ADT: 111

TRUEBLOOD Pl

Fair

Over: HAYWORTH SLOUGH

00.50 S Kennett Dr, Vigo, IN

Built 1925 Load: 25.0 t ADT: 629

BEE LINE RD

Fair

Over: HIGHLAND CREEK

00.30 E of ORCHARD Rd, Washington, IN

Built 1915 Load: 25.0 t ADT: 112

US 421

Fair

Over: CRIPE RUN

01.76 S SR 26, Clinton, IN

Built 1931 Load: 25.1 t ADT: 3,441

SR 1

Fair

Over: WILSON CREEK

04.64 S SR 44, Fayette, IN

Built 1931 Load: 25.1 t ADT: 4,125

CR 140E

Fair

Over: BIG SHAWNEE Creek

00.40 NE of SR 55, Fountain, IN

Built 1930 Load: 25.1 t ADT: 120

CR 780N

Fair

Over: Little SHAWNEE Creek

00.50 W of ROB ROY Rd, Fountain, IN

Built 1920 Load: 25.1 t ADT: 120

OLD US 41

Fair

Over: DRY RUN

00.50 NW JCT I-74/US 41, Fountain, IN

Built 1924 Load: 25.1 t ADT: 24

MEL CURRY ROAD

Fair

Over: BEANBLOSSOM CREEK

00.10 E SHOWERS ROAD, Monroe, IN

Built 1965 Load: 25.1 t ADT: 284

OLD SR 37

Fair

Over: BRANCH OF CLEAR CREEK

00.05 S HOBART ROAD, Monroe, IN

Built 1970 Load: 25.1 t ADT: 1,570

CR 1500 S

Fair

Over: BONHAM DITCH

0.7 MI W CR 525 W, Newton, IN

Built 1985 Load: 25.1 t ADT: 143

CR 300E

Fair

Over: S FORK PATOKA RIVER

00.16 S CR 900 S, Pike, IN

Built 1998 Load: 25.1 t ADT: 128

US 50

Fair

Over: ROSS RUN CREEK

01.89 W SR 129, Ripley, IN

Built 1929 Load: 25.1 t ADT: 6,783

CR 500 SOUTH

Fair

Over: VAN PELT DITCH

00.85 W OF CR 25 E, Shelby, IN

Built 1977 Load: 25.1 t ADT: 100

CR 1100N

Fair

Over: CROOKED CREEK

00.43 W of CR 950 E, Spencer, IN

Built 1977 Load: 25.1 t ADT: 320

FOUTS RD

Fair

Over: SILVER CREEK

00.10 S OF MITCHELL RD, Union, IN

Built 1987 Load: 25.1 t ADT: 100

Showing 3,401-3,450 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.