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

LEVEE RD

Poor

Over: SNAIL CREEK

00.02 E of SNAIL CREEK RD, Franklin, IN

Built 1900 Load: 14.5 t ADT: 350

BIG CEDAR NORTH RD

Poor

Over: BIG CEDAR CREEK

00.30 N of SR 252, Franklin, IN

Built 1910 Load: 14.5 t ADT: 225

MERRIL RD

Poor

Over: DRY FK WHITEWATER RIVER

00.01 W of RAYMOND RD, Franklin, IN

Built 1905 Load: 14.5 t ADT: 125

ST PETERS RD

Poor

Over: EAST FORK BLUE CREEK

01.20 MI. E BLUE CREEK RD, Franklin, IN

Built 1908 Load: 14.5 t ADT: 350

CAMPGROUND RD

Poor

Over: RAMSEY CREEK

00.10 MI. N. OF GRAF RD, Franklin, IN

Built 1905 Load: 14.5 t ADT: 100

CR 850 SOUTH

Poor

Over: COFFEE CREEK

00.07 E OF CR 310 W, Jennings, IN

Built 1900 Load: 14.5 t ADT: 1,350

MILL CREEK ROAD

Poor

Over: CSX RAILROAD

01.58 E OF BALL ROAD, Lawrence, IN

Built 1935 Load: 14.6 t ADT: 393

CR 600E

Poor

Over: BOSMAN DITCH

00.30 N of CR 1000 N, Delaware, IN

Built 1935 Load: 14.7 t ADT: 170

CR 6

Poor

Over: CHRISTIANA CREEK

00.10 E OF CR 7, Elkhart, IN

Built 1965 Load: 14.7 t ADT: 18,719

CR 1200 SOUTH

Poor

Over: RUSSELL DITCH

0.50 W OF US 31, Miami, IN

Built 1930 Load: 14.7 t ADT: 100

CR 100 WEST

Poor

Over: LITTLE WEESAU CREEK

0.20 S OF CR 800 N, Miami, IN

Built 1940 Load: 14.7 t ADT: 150

HARRISON RIDGE ROA

Poor

Over: S BR MIDDLE FK SALT CREE

0.6 MI N OF BELLSVILLE PK, Brown, IN

Built 1983 Load: 14.8 t ADT: 100

SR 15

Poor

Over: WHITEHEAD DITCH

02.80 N US 6, Elkhart, IN

Built 1929 Load: 14.9 t ADT: 10,805

213TH STREET

Poor

Over: HART DITCH

00.10 W. of CALUMET AVE, Lake, IN

Built 1955 Load: 14.9 t ADT: 5,782

WALLOW HOLLOW ROAD

Poor

Over: CLAY LICK CREEK

0.1 MI N OF CLAY LICK RD, Brown, IN

Built 1932 Load: 15.0 t ADT: 100

DEFENBAUGH STREET

Poor

Over: LOCAL PLANT PASS ROAD

0.1 MI E BELMONT ST, Howard, IN

Built 1965 Load: 15.1 t ADT: 5,192

SPICELAND ROAD

Poor

Over: BRANCH OF BIG BLUE RIVER

00.30 N OF CR 650 S, Henry, IN

Built 2001 Load: 15.2 t ADT: 400

CR 400E

Poor

Over: CSX RR

00.85 S OF CR 300 N, Noble, IN

Built 1906 Load: 15.2 t ADT: 270

CR 400 N

Poor

Over: PATOKA RIVER

00.40 W OF CR 350 E, Gibson, IN

Built 1979 Load: 15.3 t ADT: 240

CR 200W

Poor

Over: BRANCH OF FETID CREEK

01.00 MI S of SR 28, Randolph, IN

Built 1935 Load: 15.3 t ADT: 142

CR 570 S

Poor

Over: BRANCH OF RODGERS DITCH

00.10 S OF OLD BUFFALO TR, Sullivan, IN

Built 1930 Load: 15.4 t ADT: 140

CR 75 N (90 N)

Poor

Over: MORRISON CREEK

00.04 W OF CR 200 E, Sullivan, IN

Built 1935 Load: 15.4 t ADT: 190

SR 3

Poor

Over: PRAIRIE CREEK

00.02 N SR 18, Blackford, IN

Built 1932 Load: 15.6 t ADT: 2,249

CLAY STREET

Poor

Over: DEEP RIVER

00.30 N of 97th Ave, Lake, IN

Built 1980 Load: 15.6 t ADT: 320

PLUM CREEK RD

Poor

Over: BROAD RUN

00.01 S of MARY LAMB RD, Switzerland, IN

Built 1999 Load: 15.6 t ADT: 200

BLUE CREEK ROAD

Poor

Over: LITTLE BLUE CREEK

1.2 MI. N. ELKINSVILLE RD, Brown, IN

Built 1969 Load: 15.7 t ADT: 50

DAVIDSON RD

Poor

Over: LITTLE JAMISON CREEK

00.01 E OF JAMISON RD, Dearborn, IN

Built 1985 Load: 15.7 t ADT: 90

DEFENBAUGH ST

Poor

Over: KOKOMO CREEK

0.2 MI NE PARK RD, Howard, IN

Built 1970 Load: 15.7 t ADT: 6,263

CR 300 WEST

Poor

Over: RIFE CREEK

0.00 N OF CR 250 S, Miami, IN

Built 1935 Load: 15.7 t ADT: 625

CR 100 S

Poor

Over: FRENCH LICK CREEK

0.10 W OF IN-145, Orange, IN

Built 1904 Load: 15.8 t ADT: 175

TOWNSHIP LINE ROAD

Poor

Over: I-465

01.35 E US 421, Marion, IN

Built 1966 Load: 15.9 t ADT: 17,386

CR 900S

Poor

Over: BIG PINE CREEK

00.50 W CR 600 E, Benton, IN

Built 1959 Load: 15.9 t ADT: 70

CR 36

Poor

Over: YELLOW CREEK

00.10 W OF CR 11, Elkhart, IN

Built 1971 Load: 15.9 t ADT: 616

FARMERSBURG St

Poor

Over: TURMAN CREEK

00.40 S COTTOM DR, Vigo, IN

Built 1915 Load: 15.9 t ADT: 188

CR 450S

Poor

Over: E FORK OF WHITE LICK CR

00.40 E OF RONALD REAGAN, Hendricks, IN

Built 1900 Load: 16.0 t ADT: 5,500

CR 26

Poor

Over: BAUGO CREEK

00.20 W OF CR 22, Elkhart, IN

Built 1959 Load: 16.2 t ADT: 1,635

VAN ZILE RD

Poor

Over: ST JOSEPH RIVER

00.40 N OF HURSHTOWN ROAD, Allen, IN

Built 1883 Load: 16.3 t ADT: 200

CR 620N

Poor

Over: DEER CREEK

00.20 W OF MIDDLETON RD, Henry, IN

Built 1970 Load: 16.3 t ADT: 100

KIPP ROAD

Poor

Over: BRANCH OF MARIAH CREEK

00.96 NE OF DAUGHTERY ROA, Knox, IN

Built 1920 Load: 16.3 t ADT: 50

HAZELTON ROAD

Poor

Over: OVERFLOW TO WHITE RIVER

01.03 N OF STATE ROAD 56, Knox, IN

Built 1950 Load: 16.3 t ADT: 2

BEER ROAD

Poor

Over: TURKEY CREEK

00.90 W OF CR 175 E, Kosciusko, IN

Built 1910 Load: 16.3 t ADT: 250

THOMPSON ROAD

Poor

Over: DOLLAR HIDE CREEK

01.75 E MOORESVILLE RD, Marion, IN

Built 1967 Load: 16.3 t ADT: 3,998

REYNOLDS RD

Poor

Over: BR BEACH CREEK

00.30 N COAL CTY-ARNEY RD, Owen, IN

Built 1930 Load: 16.3 t ADT: 190

CR 350 S

Poor

Over: UNNAMED DITCH

00.00 CO LINE RD-CR 350 S, Sullivan, IN

Built 1930 Load: 16.3 t ADT: 1,020

CR 50 N

Poor

Over: BUSSERON CREEK

00.51 E OF CR 150 E, Sullivan, IN

Built 1975 Load: 16.3 t ADT: 170

TC STEELE ROAD

Poor

Over: NORTH FORK OF SALT CREEK

00.20 S SR 46, Brown, IN

Built 1957 Load: 16.4 t ADT: 750

CR 600 S

Poor

Over: DONOHUE CREEK

00.20 E OF CR 1025 E, Gibson, IN

Built 1970 Load: 16.5 t ADT: 148

CR 600N

Poor

Over: SALT CREEK

00.25 W JCT SR 149, Porter, IN

Built 1970 Load: 16.5 t ADT: 1,670

N HOGAN RD

Poor

Over: BRANCH OF N HOGAN CREEK

00.30 SE OF SHORT RIDGE, Dearborn, IN

Built 1915 Load: 16.7 t ADT: 1,050

HOOT RD

Poor

Over: WEST FORK OF FISH CREEK

0.6 N OF GOOSE CREEK RD, Owen, IN

Built 1940 Load: 16.7 t ADT: 110

Showing 18,751-18,800 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.