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

TILLMAN RD

Poor

Over: HIGHLAND DRAIN 4

00.20 W OF S HANNA ST, Allen, IN

Built 1966 Load: 34.3 t ADT: 12,125

CR 90 EAST

Poor

Over: PATOKA RIVER

0.03 N OF CR 975 S, Orange, IN

Built 1930 Load: 34.3 t ADT: 66

CR 900S

Poor

Over: HONEY CREEK

00.26 W SR 61, Pike, IN

Built 1930 Load: 34.4 t ADT: 108

CR 350N

Poor

Over: DRY Branch

00.30 E of CR 50 E, Vermillion, IN

Built 1930 Load: 34.5 t ADT: 233

HORTON RD

Poor

Over: PRAIRIE CREEK

00.45 S OF 296TH ST, Hamilton, IN

Built 1965 Load: 34.7 t ADT: 120

246TH ST EAST

Poor

Over: BEAR CREEK

00.48 E OF SR 213, Hamilton, IN

Built 1988 Load: 34.7 t ADT: 390

N UNION ROAD

Poor

Over: PETER SARBER DITCH

00.90 N OF W 3B ROAD, Marshall, IN

Built 1925 Load: 34.7 t ADT: 175

N. MAIN STREET

Poor

Over: STUCKER DITCH

00.83 S MARSHFIELD RD, Scott, IN

Built 1983 Load: 34.8 t ADT: 250

CR 700W

Poor

Over: NORTH FORK OF COAL CREEK

00.70 S of CR 1125 N, Montgomery, IN

Built 1967 Load: 34.9 t ADT: 200

CR 775E

Poor

Over: MILLER CREEK

00.20 S of CR 350 N, Putnam, IN

Built 1920 Load: 35.1 t ADT: 480

BARKLEY RD

Poor

Over: BROWN DRAIN

00.20 E OF WHITTERN RD, Allen, IN

Built 1975 Load: 35.3 t ADT: 112

BOONVL NEW HARMONY

Poor

Over: TRIBUTARY OF BIG CREEK

00.90 W OF ST JOSEPH AVE, Vanderburgh, IN

Built 1935 Load: 35.3 t ADT: 2,560

S COUNTY LINE RD

Poor

Over: ST MARYS RIVER

00.75 E WINCHESTER ROAD, Allen, IN

Built 1983 Load: 35.4 t ADT: 156

161ST AVENUE

Poor

Over: CEDAR CREEK

00.20 E. of COLFAX, Lake, IN

Built 1945 Load: 35.5 t ADT: 762

OLD SR 1

Poor

Over: G POWERS/WEST BRANCH

0.30 MILES N OF EDUNHAM R, Steuben, IN

Built 1967 Load: 35.5 t ADT: 241

SR 67

Poor

Over: SALAMONIE RIVER

00.99 S SR 26, Jay, IN

Built 1987 Load: 35.6 t ADT: 5,744

CR 300 E

Poor

Over: WILDCAT CREEK

0.7 MI N CR 50 N, Howard, IN

Built 1958 Load: 35.6 t ADT: 1,801

THRUSH DR

Poor

Over: FALCON CREEK

00.17 S OF 34TH ST, Marion, IN

Built 1954 Load: 35.6 t ADT: 618

WATERWORKS RD

Poor

Over: TREATY CREEK

00.10 E OF OLD STATE RD 1, Wabash, IN

Built 1983 Load: 35.6 t ADT: 520

LOWER DILLSBORO RD

Poor

Over: BRANCH OF S HOGAN CREEK

01.50 NE US 50, Dearborn, IN

Built 1985 Load: 35.9 t ADT: 90

BUCHANAN STR. RAMP

Poor

Over: GRAND CALUMET RIVER

00.50 N US 12/US 20 WB, Lake, IN

Built 1956 Load: 36.0 t

CR 250 EAST

Poor

Over: BRANCH MUD CREEK

00.10 MI. N. CR 700 S, Fulton, IN

Built 1970 Load: 36.0 t ADT: 100

SR 23/SR 933 NB

Poor

Over: SR 933 NB/LINCOLN WAY

03.81 NE US 20, St. Joseph, IN

Built 1962 Load: 36.3 t ADT: 17,461

BLUFF ROAD

Poor

Over: PLEASANT RUN CREEK

00.75 SW OF STOP 11 ROAD, Marion, IN

Built 1954 Load: 36.3 t ADT: 91

CR 200E

Poor

Over: NORTON Creek

00.60 S of CR 900 S, Vermillion, IN

Built 1930 Load: 36.3 t ADT: 117

OLD SR 75

Poor

Over: BACHELOR Run

00.35 W of SR 75, Carroll, IN

Built 1976 Load: 36.4 t ADT: 295

I-80 EB

Poor

Over: NS RR CN RR WYE

00.50 E SR 912, Lake, IN

Built 1953 Load: 36.6 t ADT: 99,921

CR 1100 NORTH

Poor

Over: EAST FORK CLEAR CREEK

0.8 MI W OF SR 9, Huntington, IN

Built 1977 Load: 36.9 t ADT: 107

CR 50E

Poor

Over: KANKAKEE RIVER

00.60 S CR 1300 S, LaPorte, IN

Built 1982 Load: 37.2 t ADT: 100

CR 1300S

Poor

Over: MOOTS CREEK

00.49 W SPRINGBORO RD, White, IN

Built 1980 Load: 37.2 t ADT: 200

SR 140

Poor

Over: BIG BLUE RIVER

00.68 S US 40, Rush, IN

Built 1902 Load: 37.3 t ADT: 2,305

CR 625W

Poor

Over: RATTLESNAKE Creek

00.53 S of CR 950 N, Carroll, IN

Built 1973 Load: 37.5 t ADT: 49

CR 535W

Poor

Over: BIG Slough Creek

00.10 N of CR 600 S, Clay, IN

Built 1982 Load: 37.5 t ADT: 119

EPPERT St

Poor

Over: N BR OTTER CREEK

00.10 S SYCAMORE, Vigo, IN

Built 1983 Load: 37.5 t ADT: 503

SMITH RD

Poor

Over: ROBINSON-BRINDLE DRAIN

00.20 S OF INDIANAPOLIS R, Allen, IN

Built 1974 Load: 37.7 t ADT: 128

OLD BROWNSVILLE RD

Poor

Over: SILVER CREEK

00.60 W OF US-27, Union, IN

Built 1960 Load: 38.0 t ADT: 300

CR 400W

Poor

Over: Little Creek

00.30 S of CR 1350 N, Clay, IN

Built 1976 Load: 38.1 t ADT: 119

SR 227

Poor

Over: CSX RR

02.87 S US 27, Wayne, IN

Built 1938 Load: 38.2 t ADT: 1,786

WEBBER HILL ROAD

Poor

Over: NORTH FORK OF SALT CREEK

00.00 W UP SALT CR ROAD, Brown, IN

Built 1966 Load: 38.2 t ADT: 100

CR 1000W

Poor

Over: MILL CREEK

00.70 S OF CR 400 S, Fulton, IN

Built 1966 Load: 38.2 t ADT: 100

CR 400S

Poor

Over: BRANCH E FORK COAL CR

00.50 W CR 400 E, Fountain, IN

Built 1920 Load: 38.3 t ADT: 125

CR 200E

Poor

Over: TURKEY Run

00.20 N of CR 400 N, Fountain, IN

Built 1966 Load: 38.4 t ADT: 117

CR 525W

Poor

Over: EAST BRANCH OF TRAIL CR

00.40 N US 20, LaPorte, IN

Built 1976 Load: 38.5 t ADT: 150

SR 8

Poor

Over: YELLOW RIVER

01.32 W SR 23, Starke, IN

Built 1964 Load: 38.6 t ADT: 3,936

MILAN CENTER RD

Poor

Over: BOTTERON DRAIN

00.30 N OF DOTY ROAD, Allen, IN

Built 1973 Load: 38.6 t ADT: 179

RUPERT RD

Poor

Over: WERTZ DITCH

00.16 MI N NOTESTINE ROA, Allen, IN

Built 1970 Load: 38.6 t ADT: 200

EAGLETOWN RD

Poor

Over: LITTLE EAGLE CREEK

00.31 S OF 186TH ST, Hamilton, IN

Built 1976 Load: 38.6 t ADT: 500

CR 1650S

Poor

Over: HANNA ARM-TUESBURG DITCH

01.00 W LONG LANE, LaPorte, IN

Built 1924 Load: 38.6 t ADT: 200

CARMICHAEL ROAD

Poor

Over: INDIAN CREEK

1.00 E OF SR 45, Greene, IN

Built 1905 Load: 38.8 t ADT: 214

I-69 SB

Poor

Over: N&S RR CR 251 N

00.66 N SR 332, Delaware, IN

Built 1963 Load: 38.9 t ADT: 12,226

Showing 19,351-19,400 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.