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

CR 46

Poor

Over: TURKEY CREEK

00.50 E OF CR 21, Elkhart, IN

Built 1966 Load: 27.2 t ADT: 1,718

CR 450W

Poor

Over: BRANCH OF SYMONS CREEK

00.40 N of CR 900 N, Fayette, IN

Built 1935 Load: 27.2 t ADT: 100

WAVERLY ROAD

Poor

Over: LITTLE CALUMET RIVER

00.10 N ACKERMAN RD, Porter, IN

Built 1966 Load: 27.2 t ADT: 5,130

CR 1450N

Poor

Over: SPRING CREEK

00.50 E CR 200 E, Vermillion, IN

Built 1970 Load: 27.2 t ADT: 117

CR 125S

Poor

Over: BRANCH PATOKA RIVER

00.35 E CR 500 W, Pike, IN

Built 1935 Load: 27.3 t ADT: 200

ARIZONA STREET

Poor

Over: DEEP RIVER

00.30 N of 61st Ave, Lake, IN

Built 1964 Load: 27.4 t ADT: 2,141

CR 38

Poor

Over: Branch of Oil Creek

00.20 N of CR 119, Perry, IN

Built 1945 Load: 27.4 t ADT: 120

OLD US 231

Poor

Over: Wea Creek

00.12 S of CR 375 S, Tippecanoe, IN

Built 1929 Load: 27.4 t ADT: 6,262

CR 150 S (KELLEY)

Poor

Over: PRAIRIE CREEK

0.10 E OF KIRKLIN BRICK R, Clinton, IN

Built 1954 Load: 27.5 t ADT: 3,209

CR 500N

Poor

Over: MUD CREEK

00.03 W of CR 850 E, Delaware, IN

Built 1920 Load: 27.5 t ADT: 210

CR 800 WEST

Poor

Over: LATTAS CREEK

0.10 S OF CR 300 N, Greene, IN

Built 1945 Load: 27.6 t ADT: 110

CR 900S

Poor

Over: SPRING Creek

00.00 Int of CR 450 W, Parke, IN

Built 1941 Load: 27.6 t ADT: 908

QUINN Rd

Poor

Over: PINE Creek

00.30 W of WALNUT Rd, St. Joseph, IN

Built 1993 Load: 27.6 t ADT: 118

CR 1050S

Poor

Over: NORTON Creek

00.30 W of CR 250 E, Vermillion, IN

Built 1910 Load: 27.6 t ADT: 117

SR 236

Poor

Over: WEST FK BIG WALNUT CREEK

01.60 W SR 75, Hendricks, IN

Built 1948 Load: 27.7 t ADT: 1,627

BULL RAPIDS RD

Poor

Over: MARSH DRAIN

00.20 S US 24, Allen, IN

Built 1979 Load: 27.8 t ADT: 1,800

CR 700 EAST

Poor

Over: TWO MILE DITCH

00.50 N OF JCT SR 26, Blackford, IN

Built 1982 Load: 27.8 t ADT: 110

EWING ROAD

Poor

Over: E FORK WHITE RIVER OVERF

0.32 E OF CR 150 W, Jackson, IN

Built 1930 Load: 27.8 t ADT: 500

CLARK STREET

Poor

Over: BRANCH BEAVER DAM DITCH

00.20 S. of 101st Ave, Lake, IN

Built 1960 Load: 27.8 t ADT: 4,369

NORTH LAKE STREET

Poor

Over: GRAND CALUMET RIVER

00.10 N. of HEMLOCK AVE., Lake, IN

Built 1920 Load: 27.8 t ADT: 2,538

SOUTHPORT RD

Poor

Over: WHITE RIVER

00.50 E OF MANN RD, Marion, IN

Built 1950 Load: 27.8 t ADT: 11,120

US 36

Poor

Over: MUD CREEK

01.59 W US 27, Randolph, IN

Built 1941 Load: 27.9 t ADT: 2,584

OWL CREEK ROAD

Poor

Over: OWL CREEK

0.1 MI W of HELMSBURG RD, Brown, IN

Built 1930 Load: 28.0 t ADT: 600

HENRYVILLE-OTISCO

Poor

Over: Branch of CLEGG CREEK

0.30 N of Zollman Rd, Clark, IN

Built 1969 Load: 28.0 t ADT: 1,280

ELKINS ROAD

Poor

Over: KNOB CREEK

00.23 W OF BARTLETTSVILLE, Lawrence, IN

Built 1984 Load: 28.0 t ADT: 255

DARDEN Rd

Poor

Over: GEYER Ditch

00.50 E of TAMARACK Rd, St. Joseph, IN

Built 1971 Load: 28.0 t ADT: 157

CR 500 S

Poor

Over: MUD CREEK

0.6 MI E CR 900 E, Howard, IN

Built 1969 Load: 28.1 t ADT: 390

CR 400 SOUTH

Poor

Over: SUGAR CREEK

0.30 W OF CR 700 E, Johnson, IN

Built 1978 Load: 28.1 t ADT: 712

LYNHURST DR

Poor

Over: SEERLEY CREEK

00.35 N KENTUCKY AVE, Marion, IN

Built 1910 Load: 28.1 t ADT: 15,130

SR 163

Poor

Over: BROUILLETTS CREEK

01.18 N SR 71, Vermillion, IN

Built 1932 Load: 28.2 t ADT: 1,645

I-70 EB

Poor

Over: E FK/E FK WHITEWATER RIV

00.18 E SR 121, Wayne, IN

Built 1959 Load: 28.2 t ADT: 18,702

CR 400E

Poor

Over: SOUTH BR CLIFTY CREEK

00.20 N OF CR 400 N, Decatur, IN

Built 1975 Load: 28.2 t ADT: 140

ST ANTHONY Rd W

Poor

Over: Branch of FLAT Creek

00.60 N of CR 450 S, Dubois, IN

Built 1979 Load: 28.2 t ADT: 298

CR 750N

Poor

Over: Burnett Creek

00.05 W of CR 100 W, Tippecanoe, IN

Built 1957 Load: 28.2 t ADT: 413

MEYER RD

Poor

Over: TRIER DRAIN

00.50 N PAULDING RD, Allen, IN

Built 1969 Load: 28.3 t ADT: 2,525

SR 1

Poor

Over: CARDINAL GREENWAY

00.56 N US 35, Wayne, IN

Built 1976 Load: 28.5 t ADT: 1,369

SR 32

Poor

Over: WHITE RIVER

04.15 E US 27, Randolph, IN

Built 1956 Load: 28.5 t ADT: 2,909

US 41 NB

Poor

Over: POND FLAT DITCH

02.01 S I-64, Vanderburgh, IN

Built 1946 Load: 28.5 t ADT: 14,325

US 41 SB

Poor

Over: POND FLAT DITCH

02.01 S I-64, Vanderburgh, IN

Built 1946 Load: 28.5 t ADT: 14,325

I-90 RAMP/BUCHANAN

Poor

Over: GRAND CALUMET RIVER

01.95 E US 12, Lake, IN

Built 1956 Load: 28.5 t

CUBA RD

Poor

Over: OBERHALTZER DITCH

00.05 N OF GRABILL ROAD, Allen, IN

Built 1937 Load: 28.5 t ADT: 1,150

CR 350 SOUTH

Poor

Over: AMITY DITCH

0.05 W OF US 31, Johnson, IN

Built 1960 Load: 28.5 t ADT: 65

CR 800S

Poor

Over: WAY DITCH

00.20 W SR 39, LaPorte, IN

Built 1983 Load: 28.5 t ADT: 875

LENBURG ROAD

Poor

Over: SALT CREEK

00.30 E MCCOOL RD, Porter, IN

Built 1968 Load: 28.6 t ADT: 3,140

CR 625 WEST

Poor

Over: CROOKED CREEK

0.60 N OF CR 375 N, Johnson, IN

Built 1960 Load: 28.7 t ADT: 363

SR 218

Poor

Over: ROCK CREEK

02.16 W SR 1, Wells, IN

Built 1933 Load: 28.8 t ADT: 1,604

CYNTHEANNE RD

Poor

Over: DYERS CREEK

00.41 S OF STRAWTOWN AVE, Hamilton, IN

Built 1974 Load: 28.8 t ADT: 140

30TH STREET

Poor

Over: WHITE RIVER

.5 MI E OF COLD SPRING RD, Marion, IN

Built 1907 Load: 28.8 t ADT: 35,555

PLYMOUTH ROAD

Poor

Over: BRANCH OF WOODS FORK

00.61 E OF SR 3, Scott, IN

Built 1955 Load: 28.8 t ADT: 250

WIMBERG RD

Poor

Over: LOCUST CREEK

00.10 E OF ST JOSEPH AVE, Vanderburgh, IN

Built 1906 Load: 28.8 t ADT: 1,906

Showing 19,101-19,150 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.