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

OLD PORTER ROAD

Good

Over: SALT CREEK

00.20 W SALT CREEK RD, Porter, IN

Built 1970 Load: 35.3 t ADT: 2,650

CR 200S

Good

Over: LITTLE WHITE RIVER

00.38 MI W of CR 1100 W, Randolph, IN

Built 2006 Load: 35.3 t ADT: 287

CR 250S

Good

Over: CABIN CREEK

00.28 MI W OF CR 625 W, Randolph, IN

Built 1977 Load: 35.3 t ADT: 182

JOHNSON Rd

Good

Over: GEYER Ditch

00.30 E of TAMARACK Rd, St. Joseph, IN

Built 2010 Load: 35.3 t ADT: 431

LINDEN Rd

Good

Over: HESTON Creek

01.00 N of ROCKSTROH Rd, St. Joseph, IN

Built 2011 Load: 35.3 t ADT: 109

E COUNTY LINE RD

Good

Over: BRANCH POSSUM HOLLOW CRK

00.17 N OF CR 350 N, Sullivan, IN

Built 2010 Load: 35.3 t ADT: 170

Division Rd

Good

Over: Tributary Wabash River

00.06 W of CR 575 W, Tippecanoe, IN

Built 1970 Load: 35.3 t ADT: 1,779

CR 800S

Good

Over: WEA CREEK

00.03 W CR 350 E, Tippecanoe, IN

Built 2015 Load: 35.3 t ADT: 3,369

KEPLER RD

Good

Over: DRY Branch CREEK

00.30 E of JACKSONBURG Rd, Wayne, IN

Built 1971 Load: 35.3 t ADT: 438

GOOSE HEAVEN RD

Good

Over: SYMONDS CREEK

00.40 E of SYMONDS CREEK, Wayne, IN

Built 1997 Load: 35.3 t ADT: 259

I-90 RAMP

Good

Over: I-90 EB/WB RAMP

00.66 E US 12, Lake, IN

Built 2003 Load: 35.4 t ADT: 6,340

I-90 WB

Good

Over: CR 21

02.21 W SR 15, Elkhart, IN

Built 1956 Load: 35.4 t ADT: 12,815

I-94 WB

Good

Over: NS RR

01.36 E US 20, Porter, IN

Built 1966 Load: 35.4 t ADT: 4,035

SR 5

Good

Over: WILLIAM-BROWN/DEEMER DIT

01.38 S SR 114, Huntington, IN

Built 2005 Load: 35.4 t ADT: 1,977

CR 150S

Good

Over: Big Pine Creek

00.30 E of CR 800 E, Benton, IN

Built 1979 Load: 35.4 t ADT: 22

CR 310 SOUTH

Good

Over: LITTLE POTATO CREEK

0.10 S OF CR 300 S, Clinton, IN

Built 2003 Load: 35.4 t ADT: 103

CR 500 EAST

Good

Over: CARTERS CREEK

0.05 S OF CR 550 N, Orange, IN

Built 2018 Load: 35.4 t ADT: 79

COUNTY LINE RD

Good

Over: BRANCH OF MILL CREEK

0.1 S OF LEWISVILLE RD, Owen, IN

Built 1996 Load: 35.4 t ADT: 330

7th STREET

Good

Over: FEATHER CREEK

00.05 S OF NORTH STREET, Vermillion, IN

Built 2009 Load: 35.4 t ADT: 374

I-64 WBL

Good

Over: ANDERSON RIVER

00.30 W SR 145, Perry, IN

Built 1973 Load: 35.5 t ADT: 6,993

SR 265 EB

Good

Over: CONRAIL RR CHARLESTOWN

01.51 E US 31, Clark, IN

Built 1992 Load: 35.5 t ADT: 33,248

CR 300 EAST

Good

Over: BLUE CREEK

0.10 MILES S OF CR 350 S, Adams, IN

Built 2003 Load: 35.5 t ADT: 110

DEVANEY RD

Good

Over: LITTLE CICERO CREEK

00.86 S OF 296TH ST, Hamilton, IN

Built 1972 Load: 35.5 t ADT: 440

BUDDHA BYPASS

Good

Over: EAST FORK WHITE RIVER

01.93 S OF TUNNELTON RD, Lawrence, IN

Built 1996 Load: 35.5 t ADT: 785

HENDERSON CREEK RD

Good

Over: LITTLE SALT CREEK

00.11 E OF SR 446, Lawrence, IN

Built 2010 Load: 35.5 t ADT: 198

INDIAN SPRINGS RD

Good

Over: SULPHUR CREEK

0.56 N OF BEAR HILL ROAD, Martin, IN

Built 2017 Load: 35.5 t ADT: 34

E CR 150 NORTH

Good

Over: STAMPERS CREEK

0.49 E OF 500 E, Orange, IN

Built 2016 Load: 35.5 t ADT: 50

CR 500W

Good

Over: MYERS DITCH

00.31 S CR 900 S, White, IN

Built 1995 Load: 35.5 t ADT: 100

SR 3

Good

Over: STUCKER CREEK

00.42 S SR 56, Scott, IN

Built 2014 Load: 35.6 t ADT: 1,960

SR 3

Good

Over: HOG CREEK

00.19 S SR 56, Scott, IN

Built 2014 Load: 35.6 t ADT: 1,960

SR 8

Good

Over: SOL SHANK DITCH

00.62 E SR 101, DeKalb, IN

Built 1993 Load: 35.6 t ADT: 2,094

US 31

Good

Over: QUADE DITCH

06.36 N US 50, Jackson, IN

Built 2016 Load: 35.6 t ADT: 5,708

US 31 NB

Good

Over: SR 38 LINDLEY DITCH

3.65 N SR 32, Hamilton, IN

Built 2012 Load: 35.6 t ADT: 15,513

WB MONTICELLO ROAD

Good

Over: SR 25 (BURLINGTON AVE)

00.49 N US 24/35, Cass, IN

Built 1998 Load: 35.6 t ADT: 2,675

SR 37 NB

Good

Over: STOTTS CREEK

06.04 N SR 44, Morgan, IN

Built 2022 Load: 35.6 t ADT: 20,502

SR 37 SB

Good

Over: STOTTS CREEK

06.04 N SR 44, Morgan, IN

Built 2022 Load: 35.6 t ADT: 19,698

US 41

Good

Over: SR 66/DIAMOND AVE

00.46 N SR 62, Vanderburgh, IN

Built 1972 Load: 35.6 t ADT: 43,859

KINGS MINE ROAD

Good

Over: TOYOTA RAILROAD SPUR

03.60 S SR 64, Gibson, IN

Built 2003 Load: 35.6 t ADT: 1,482

US 41 SB

Good

Over: SINGLETON DITCH

03.23 S SR 2, Lake, IN

Built 1954 Load: 35.6 t ADT: 5,015

US 231

Good

Over: RAMP CREEK

02.75 N US 36, Putnam, IN

Built 1993 Load: 35.6 t ADT: 4,060

SR 46

Good

Over: GREEN VALLEY CREEK

01.05 W SR 135, Brown, IN

Built 1998 Load: 35.6 t ADT: 7,185

SR 46

Good

Over: FALL FORK CLIFTY CREEK

03.42 W SR 3, Decatur, IN

Built 1984 Load: 35.6 t ADT: 4,950

US 50 WB

Good

Over: BRANCH KESSINGER DITCH

02.18 W SR 550, Knox, IN

Built 1999 Load: 35.6 t ADT: 4,059

SR 57

Good

Over: FLAT CREEK

04.37 S SR 56, Pike, IN

Built 1939 Load: 35.6 t ADT: 2,170

SR 63 SBL

Good

Over: DRY BRANCH

01.13 S SR 234, Vermillion, IN

Built 1976 Load: 35.6 t ADT: 3,220

SR 149

Good

Over: LITTLE CALUMET RIVER

00.14 S US 12, Porter, IN

Built 1970 Load: 35.6 t ADT: 5,485

SR 234

Good

Over: SUGAR CREEK

06.26 E SR 341, Montgomery, IN

Built 1968 Load: 35.6 t ADT: 210

SR 550

Good

Over: OPOSSUM BRANCH

01.05 W US 50, Knox, IN

Built 1923 Load: 35.6 t ADT: 1,390

SR 912

Good

Over: CONRAIL RR DICKEY RD D

01.66 E W JCT US 12, Lake, IN

Built 1980 Load: 35.6 t ADT: 35,922

I-65 NB

Good

Over: LAFAYETTE ROAD

02.00 S I-465, Marion, IN

Built 1963 Load: 35.6 t ADT: 38,924

Showing 14,501-14,550 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.