State profile · Below median Poor share

Indiana bridge safety

According to the Federal Highway Administration's 2024 National Bridge Inventory, condition ratings, load ratings, and Poor-condition shares for every public highway bridge in Indiana.

19,495
Public bridges
42.2%
Good condition
5.2%
Poor condition

Indiana holds 19,495 public highway bridges (#11 of 52 by inventory) with a 5.22% Poor share (#32 of 52 by Poor share).

That is 5.2% of the state's inventory, against an average of 7.5% across the 54 states and territories with Poor-rated bridges on file, which places it 21 of 54 ordered from the lowest Poor share upward. A bridge is rated Poor when its weakest applicable component scores 4 or below on the inspecting agency's 0-9 scale, so the category is a maintenance and funding signal rather than a closure order or a live crossing-safety verdict.

Inventory: FHWA NBI 2024 · last ETL August 2026

Total Bridges

19,495

Public highway bridges in Indiana

Good Condition

42.2%

8,224 bridges rated 7-9

-7.8pp vs 50% benchmark

Poor Condition

5.2%

1,018 bridges whose lowest applicable component is rated 0-4

-2.3pp vs national avg 7.5%

Indiana vs national bridge condition

Indiana - Good condition share 42.2%
National avg

Share of bridges rated 7-9 on the FHWA 0-9 scale (deck, superstructure, substructure all good).

Indiana - Poor-condition share 17.4%
National avg

Lower is better. Bar maxes at 30% (worst-state ceiling). National average sits at 7.5%.

Indiana in the national condition pattern

Each point is a state or territory in the FHWA NBI; the highlighted point is this profile.

Inventory size and Poor-condition share are different measures: Indiana has 19,495 bridges and a 5.2% Poor-condition share in the 2024 NBI, rank #21 of 54 jurisdictions ordered from the lowest share upward. The dashed comparisons mark the national average state rate and the midpoint of the plotted inventory range; neither is a live safety or closure threshold. Scatter plot of 54 data points. 0%10%20%30%40% 0k20k40k60k Public bridges in inventory (thousands) Poor-condition share (%) IN, Public bridges in inventory (thousands): 19.5k · Poor-condition share (%): 5.22%AL, Public bridges in inventory (thousands): 16.2k · Poor-condition share (%): 3.35%AK, Public bridges in inventory (thousands): 1.7k · Poor-condition share (%): 7.89%AZ, Public bridges in inventory (thousands): 8.6k · Poor-condition share (%): 1.15%AR, Public bridges in inventory (thousands): 13k · Poor-condition share (%): 5.43%CA, Public bridges in inventory (thousands): 25.8k · Poor-condition share (%): 5.91%CO, Public bridges in inventory (thousands): 9k · Poor-condition share (%): 4.82%CT, Public bridges in inventory (thousands): 4.4k · Poor-condition share (%): 4.72%DE, Public bridges in inventory (thousands): 0.9k · Poor-condition share (%): 1.26%DC, Public bridges in inventory (thousands): 0.3k · Poor-condition share (%): 1.95%FL, Public bridges in inventory (thousands): 13k · Poor-condition share (%): 2.79%GA, Public bridges in inventory (thousands): 15.1k · Poor-condition share (%): 1.59%GU, Public bridges in inventory (thousands): 0k · Poor-condition share (%): 12.77%HI, Public bridges in inventory (thousands): 1.2k · Poor-condition share (%): 6.53%ID, Public bridges in inventory (thousands): 4.6k · Poor-condition share (%): 4.9%IL, Public bridges in inventory (thousands): 26.9k · Poor-condition share (%): 9.35%IA, Public bridges in inventory (thousands): 23.7k · Poor-condition share (%): 19.16%KS, Public bridges in inventory (thousands): 24.9k · Poor-condition share (%): 5.26%KY, Public bridges in inventory (thousands): 14.5k · Poor-condition share (%): 7.37%LA, Public bridges in inventory (thousands): 12.7k · Poor-condition share (%): 11.48%ME, Public bridges in inventory (thousands): 2.5k · Poor-condition share (%): 15.41%MD, Public bridges in inventory (thousands): 5.5k · Poor-condition share (%): 4.56%MA, Public bridges in inventory (thousands): 5.3k · Poor-condition share (%): 8.88%MI, Public bridges in inventory (thousands): 11.4k · Poor-condition share (%): 11.27%MN, Public bridges in inventory (thousands): 13.5k · Poor-condition share (%): 4.44%MS, Public bridges in inventory (thousands): 16.7k · Poor-condition share (%): 6.03%MO, Public bridges in inventory (thousands): 24.6k · Poor-condition share (%): 8.95%MT, Public bridges in inventory (thousands): 5.2k · Poor-condition share (%): 6.81%NE, Public bridges in inventory (thousands): 15.4k · Poor-condition share (%): 7.9%NV, Public bridges in inventory (thousands): 2.1k · Poor-condition share (%): 1.14%NH, Public bridges in inventory (thousands): 2.5k · Poor-condition share (%): 7.51%NJ, Public bridges in inventory (thousands): 6.8k · Poor-condition share (%): 6.01%NM, Public bridges in inventory (thousands): 4k · Poor-condition share (%): 4.51%NY, Public bridges in inventory (thousands): 17.6k · Poor-condition share (%): 9.43%NC, Public bridges in inventory (thousands): 19.2k · Poor-condition share (%): 6.76%ND, Public bridges in inventory (thousands): 4.3k · Poor-condition share (%): 10.98%OH, Public bridges in inventory (thousands): 26.7k · Poor-condition share (%): 4.74%OK, Public bridges in inventory (thousands): 22.9k · Poor-condition share (%): 7.7%OR, Public bridges in inventory (thousands): 8.3k · Poor-condition share (%): 4.61%PA, Public bridges in inventory (thousands): 23.3k · Poor-condition share (%): 12.58%PR, Public bridges in inventory (thousands): 2.4k · Poor-condition share (%): 13.92%RI, Public bridges in inventory (thousands): 0.8k · Poor-condition share (%): 15.2%SC, Public bridges in inventory (thousands): 9.5k · Poor-condition share (%): 6.17%SD, Public bridges in inventory (thousands): 5.9k · Poor-condition share (%): 16.36%TN, Public bridges in inventory (thousands): 20.4k · Poor-condition share (%): 4.41%TX, Public bridges in inventory (thousands): 56.7k · Poor-condition share (%): 1.23%UT, Public bridges in inventory (thousands): 3.1k · Poor-condition share (%): 2.91%VT, Public bridges in inventory (thousands): 2.9k · Poor-condition share (%): 2.9%VI, Public bridges in inventory (thousands): 0k · Poor-condition share (%): 29.17%VA, Public bridges in inventory (thousands): 14.1k · Poor-condition share (%): 3.39%WA, Public bridges in inventory (thousands): 8.5k · Poor-condition share (%): 5.45%WV, Public bridges in inventory (thousands): 7.3k · Poor-condition share (%): 18.64%WI, Public bridges in inventory (thousands): 14.4k · Poor-condition share (%): 6.52%WY, Public bridges in inventory (thousands): 3.1k · Poor-condition share (%): 6.51%
Inventory size and Poor-condition share are different measures: Indiana has 19,495 bridges and a 5.2% Poor-condition share in the 2024 NBI, rank #21 of 54 jurisdictions ordered from the lowest share upward. The dashed comparisons mark the national average state rate and the midpoint of the plotted inventory range; neither is a live safety or closure threshold.

Indiana vs all states by public bridge inventory

Where this state's FHWA NBI public-highway bridge count sits among every state and territory on PlainBridges

19,495 11th of 54 higher than 43 of 54 states

States and territories, banded by public bridge inventory size

Each bar is a band; taller bars hold more states. The dashed line + filled bar mark this entry. Hover or tap any bar for its full count and share, and where it sits relative to this entry.

Source FHWA National Bridge Inventory · 2024

Read the rank neighborhood for Indiana

The highlighted point is Indiana: 19,495 bridges and 5.22% in Poor condition, rank #21 of 54 jurisdictions ordered from the lowest share upward. The five jurisdictions immediately above and below Indiana on that same Poor-share ordering:

  • Colorado: 8,965 bridges · 4.82% Poor
  • Idaho: 4,616 bridges · 4.90% Poor
  • Indiana: 19,495 bridges · 5.22% Poor
  • Kansas: 24,894 bridges · 5.26% Poor
  • Arkansas: 12,974 bridges · 5.43% Poor

The full national sortable table lives on the rankings page.

Material families in Indiana

Exclusive FHWA material families across all 19,495 bridges in this state; continuous variants fold into the parent family. Orthogonal to the Poor-share scatter above.

Who maintains Indiana’s inventory

State agency holds 31.6% of the 19,495 public highway bridges filed under Indiana in the 2024 NBI, the agency-of-record split for this state, not a condition verdict.

When Indiana’s bridges were built

Pre-1950 construction accounts for 13.0% of the 19,495 bridges with a recorded original year in Indiana. Era bands are orthogonal to the Poor-share ranking above.

Condition Distribution

Indiana42.2%52.6%GoodFairPoor
Bridge inventory deck-condition mix - Indiana (FHWA NBI)

Counties (92)

Adams 194 Allen 613 Bartholomew 269 Benton 151 Blackford 73 Boone 293 Brown 114 Carroll 161 Cass 185 Clark 257 Clay 185 Clinton 210 Crawford 123 Daviess 221 DeKalb 149 Dearborn 145 Decatur 220 Delaware 277 Dubois 220 Elkhart 278 Fayette 100 Floyd 145 Fountain 197 Franklin 159 Fulton 85 Gibson 362 Grant 280 Greene 239 Hamilton 454 Hancock 201 Harrison 127 Hendricks 355 Henry 206 Howard 194 Huntington 187 Jackson 321 Jasper 189 Jay 191 Jefferson 153 Jennings 163 Johnson 230 Knox 290 Kosciusko 152 LaGrange 100 LaPorte 227 Lake 501 Lawrence 165 Madison 301 Marion 958 Marshall 183 Martin 104 Miami 171 Monroe 232 Montgomery 252 Morgan 252 Newton 172 Noble 89 Ohio 41 Orange 137 Owen 150 Parke 200 Perry 151 Pike 172 Porter 277 Posey 208 Pulaski 102 Putnam 290 Randolph 257 Ripley 191 Rush 227 Scott 118 Shelby 247 Spencer 244 St. Joseph 227 Starke 86 Steuben 135 Sullivan 217 Switzerland 62 Tippecanoe 330 Tipton 113 Union 58 Vanderburgh 279 Vermillion 127 Vigo 296 Wabash 192 Warren 135 Warrick 197 Washington 174 Wayne 343 Wells 158 White 214 Whitley 115

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.

CO

Colorado

4.82% top marginal rate
Structure
Progressive
Burden @ $100K
$8,965

ID

Idaho

4.90% top marginal rate
Structure
Progressive
Burden @ $100K
$4,616
Selected

IN

Indiana

5.22% top marginal rate
Structure
Progressive
Burden @ $100K
$19,495

KS

Kansas

5.26% top marginal rate
Structure
Progressive
Burden @ $100K
$24,894

AR

Arkansas

5.43% top marginal rate
Structure
Progressive
Burden @ $100K
$12,974

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.

SR 66 ILL SR 14

Poor

Over: WABASH RIVER & SERVICE R

00.35 W of SR 69, Posey, IN

Built 1930 Load: 0.0 t ADT: 1,065

SERVICE ROAD

Poor

Over: MARIO CREEK

INDIANA WOMEN PRISON, Marion, IN

Built 1920 Load: 0.0 t ADT: 1

PARK ROAD/TRAIL

Poor

Over: UNT MUD/RIVIR LAKES

00.00 CHAIN-O-LAKES ST PK, Noble, IN

Built 1893 Load: 0.0 t

ENTRANCE

Poor

Over: MADISON RR

00.00 MADISON ST HOSPITAL, Jefferson, IN

Built 1930 Load: 0.0 t ADT: 133

BOND CEMETERY ROAD

Poor

Over: NORTH FORK OF SALT CREEK

.2MI S OF GREEN VALLEY RD, Brown, IN

Built 1908 Load: 0.0 t

CR 200S

Poor

Over: BIRCH CREEK

00.70 E of 250 W, Clay, IN

Built 1910 Load: 0.0 t

All Bridges in Indiana

SR 39

Fair

Over: HARP DITCH #3

04.03 N SR 16, Pulaski, IN

Built 1950 Load: 34.3 t ADT: 1,288

US 41 SB

Fair

Over: MORRISON CREEK

03.97 N SR 154, Sullivan, IN

Built 1952 Load: 34.3 t ADT: 8,757

US 41

Fair

Over: ROARING CREEK

00.40 S SR 47, Parke, IN

Built 1925 Load: 34.3 t ADT: 2,700

SR 48

Fair

Over: RIPLEY CREEK

00.47 E SR 129, Ripley, IN

Built 1985 Load: 34.3 t ADT: 983

OLD US 50

Fair

Over: COBERT DITCH

0.18 W CR 200 W, Daviess, IN

Built 1984 Load: 34.3 t ADT: 4,216

SR 55

Fair

Over: GRIESEL DITCH

02.05 S SR 2, Lake, IN

Built 1981 Load: 34.3 t ADT: 1,682

SR 58

Fair

Over: BRANCH WHITE CREEK

09.57 W I-65, Bartholomew, IN

Built 1967 Load: 34.3 t ADT: 780

SR 63 SB

Fair

Over: DRY BRANCH CREEK

00.32 S SR 71, Vermillion, IN

Built 1976 Load: 34.3 t ADT: 2,810

SR 63 SB

Fair

Over: I-74 EB/WB SPRING CK

01.53 S US 136, Vermillion, IN

Built 1959 Load: 34.3 t ADT: 21,224

SR 66

Fair

Over: SANDY CREEK

05.35 E US 231, Spencer, IN

Built 1982 Load: 34.3 t ADT: 2,760

US 231

Fair

Over: FISH CREEK

05.97 N SR 157, Owen, IN

Built 1924 Load: 34.3 t ADT: 4,161

SR 75

Fair

Over: WEST FK BIG WALNUT CREEK

01.49 S SR 234, Hendricks, IN

Built 1993 Load: 34.3 t ADT: 628

US 150

Fair

Over: LOST RIVER

03.31 W SR 56, Orange, IN

Built 1971 Load: 34.3 t ADT: 900

US 231

Fair

Over: OHIO RIVER SR 66

00.40 S OF SR 66, Spencer, IN

Built 2002 Load: 34.3 t ADT: 8,254

SR 545

Fair

Over: BRANCH POLSON CREEK

02.90 S SR56, Dubois, IN

Built 1983 Load: 34.3 t ADT: 3,694

I-64 EBL

Fair

Over: IND SOUTHERN RAILROAD

01.48 E I-164 / SR 57, Warrick, IN

Built 1970 Load: 34.3 t ADT: 8,539

I-65 NB

Fair

Over: PIGEON ROOST CREEK

04.58 S SR 56, Scott, IN

Built 1959 Load: 34.3 t ADT: 21,299

I-65 SB

Fair

Over: PIGEON ROOST CREEK

04.58 S SR 56, Scott, IN

Built 1959 Load: 34.3 t ADT: 21,299

I-65 SBL

Fair

Over: MUSCATATUCK RIVER OVFL

01.09 N SR 256, Scott, IN

Built 1959 Load: 34.3 t ADT: 13,441

COUNTY LINE RD

Fair

Over: I-65

01.00 S SR 252, Shelby, IN

Built 1968 Load: 34.3 t ADT: 651

CALVARY STREET

Fair

Over: I-65 SB

00.29 N I-70, Marion, IN

Built 1973 Load: 34.3 t ADT: 5,000

I-65 NB

Fair

Over: LITTLE POTATO CREEK

01.82 S SR 28, Clinton, IN

Built 1969 Load: 34.3 t ADT: 44,590

I-65 SB

Fair

Over: LITTLE POTATO CREEK

01.82 S SR 28, Clinton, IN

Built 1969 Load: 34.3 t ADT: 44,590

I-65 NB

Fair

Over: RAYMAN DITCH

00.66 S SR 18, White, IN

Built 1967 Load: 34.3 t ADT: 42,476

I-65 SB

Fair

Over: RAYMAN DITCH

00.66 S SR 18, White, IN

Built 1967 Load: 34.3 t ADT: 42,476

MANHATTAN ROAD

Fair

Over: I-70 EB/WB

03.92 W SR 243, Putnam, IN

Built 1966 Load: 34.3 t ADT: 40

I-90 WB

Fair

Over: SR 39

01.41 E US 35, LaPorte, IN

Built 1956 Load: 34.3 t ADT: 12,615

CR 400N

Fair

Over: I-90 EB/WB

01.34 E SR 827, Steuben, IN

Built 1956 Load: 34.3 t ADT: 168

I-465 SB

Fair

Over: FALL CREEK ROAD

02.00 S I-69, Marion, IN

Built 1968 Load: 34.3 t ADT: 101,476

I-465 EB

Fair

Over: WILLIAMS CREEK

00.74 W US 31, Hamilton, IN

Built 1966 Load: 34.3 t ADT: 64,657

I-465 WB

Fair

Over: WILLIAMS CREEK

00.74 W US 31, Hamilton, IN

Built 1966 Load: 34.3 t ADT: 64,657

US 421

Fair

Over: MUDDY FORK SAND CREEK

00.30 S I-74, Decatur, IN

Built 2008 Load: 34.3 t ADT: 13,901

HAND RD

Fair

Over: GELLER DITCH

00.20 N HATHAWAY RD, Allen, IN

Built 1977 Load: 34.3 t ADT: 867

CR 700S

Fair

Over: GOOSE CREEK

00.20 W of CR 300 W, Benton, IN

Built 2004 Load: 34.3 t ADT: 55

BEAGLE CLUB ROAD

Fair

Over: BRANCH OF SILVER CREEK

00.10 W of Dieterlen Road, Clark, IN

Built 1998 Load: 34.3 t ADT: 200

CR 450S

Fair

Over: BRANCH OF AIKMAN CREEK

00.35 E of CR 400 E, Daviess, IN

Built 1988 Load: 34.3 t ADT: 114

CR 450W

Fair

Over: CROOKED Creek

00.40 E of CR 490 W, Dubois, IN

Built 1963 Load: 34.3 t ADT: 314

CR 1050E

Fair

Over: CANE CREEK

00.60 S of CUZCO NORTON R, Dubois, IN

Built 1930 Load: 34.3 t ADT: 65

PRAIRIE ST

Fair

Over: ELKHART RIVER

00.10 N OF WATERFALL DR, Elkhart, IN

Built 1966 Load: 34.3 t ADT: 14,733

CR 225 W

Fair

Over: BROWN DITCH LATERAL #1

00.20 S OF CR 400 S, Gibson, IN

Built 1982 Load: 34.3 t ADT: 100

BASE ROAD WEST

Fair

Over: BUCK CREEK

0.10 E OF CR 900 W, Greene, IN

Built 1961 Load: 34.3 t ADT: 110

136TH ST EAST

Fair

Over: COOL CREEK

00.20 E OF RANGELINE RD, Hamilton, IN

Built 1967 Load: 34.3 t ADT: 11,940

RAIDER ROAD

Fair

Over: DEER CREEK

00.25 N OF US 36, Henry, IN

Built 1964 Load: 34.3 t ADT: 2,375

MAIN ST

Fair

Over: WILDCAT CREEK

0.0 MI INT SUPERIOR ST, Howard, IN

Built 1941 Load: 34.3 t ADT: 5,027

CR 800 SOUTH

Fair

Over: RICHLAND CREEK

0.3 MI W OF CR 600 W, Huntington, IN

Built 1980 Load: 34.3 t ADT: 107

CR 50S

Fair

Over: WIKEL DITCH

0.6 MILES EAST OF CR 500, Jay, IN

Built 1991 Load: 34.3 t ADT: 138

CR 125N

Fair

Over: TIPPECANOE RIVER

00.30 W OF CR 900 W, Kosciusko, IN

Built 1974 Load: 34.3 t ADT: 150

PACKERTON ROAD

Fair

Over: WYLAND DITCH

00.50 N OF CR 200 S, Kosciusko, IN

Built 1980 Load: 34.3 t ADT: 1,000

CR 700 SOUTH

Fair

Over: N. BRANCH ELKHART RIVER

00.10 E OF CR 200W, LaGrange, IN

Built 1964 Load: 34.3 t ADT: 1,350

CR 350 S

Fair

Over: BR OF BIG TURKEY CREEK

00.45 MI W OF CR 1150E, LaGrange, IN

Built 1980 Load: 34.3 t ADT: 575

Showing 6,401-6,450 of 19,495 bridges

Related

All states → | National rankings → | Understanding conditions → | Retired SD term explained →
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.

Understanding Bridge Conditions

How FHWA rates bridge condition on a 0-9 scale.

Check Your Daily Bridges

How to look up bridge condition data for bridges on your route.

Read our methodology — how this data is sourced, computed, and verified.

What to do with this

Use Indiana's inventory picture to drill to a county or a specific span.

  • Browse counties in Indiana and open the highest-Poor shares first. County list
  • See where this state sits among peers on Poor-condition share. State rankings
  • Compare this state with another jurisdiction on the same measures. State compare

NBI condition ratings are inventory snapshots, not live crossing-safety verdicts.

Every figure on PlainBridges is rendered directly from federal source data, no number is typed in by an editor. Indiana Good/Fair/Poor shares and county rollups on this page are computed from the same NBI extract as the national boards; no figure is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of 2024 NBI release. NBI condition categories reflect the latest reported inventory record, not a live safety, closure, or travel decision.