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

I-74 WB

Fair

Over: LITTLE BLUE RIVER

00.65 W SR 44, Shelby, IN

Built 1959 Load: 29.2 t ADT: 16,395

I-74 EB

Fair

Over: DEER CREEK

03.99 E SR 244, Shelby, IN

Built 1961 Load: 29.2 t ADT: 10,729

I-74 WB

Fair

Over: DEER CREEK

03.99 E SR 244, Shelby, IN

Built 1961 Load: 29.2 t ADT: 10,729

BASE ROAD

Fair

Over: I-74

03.98 E SR 3, Decatur, IN

Built 1961 Load: 29.2 t ADT: 555

I-90 WB

Fair

Over: SR 933

02.92 W SR 23, St. Joseph, IN

Built 1956 Load: 29.2 t ADT: 14,240

BROWN RD/CR 500 E

Fair

Over: I-94 EB/WB

04.59 E SR 49, Porter, IN

Built 1969 Load: 29.2 t ADT: 458

I-465 NB

Fair

Over: FALL CREEK & TRAIL

02.39 N US 36 / SR 67, Marion, IN

Built 1966 Load: 29.2 t ADT: 101,476

KISSEL ROAD

Fair

Over: I-865

01.50 E I-65, Boone, IN

Built 1971 Load: 29.2 t ADT: 1,310

CR 50N

Fair

Over: LITTLE SAND CREEK

00.25 E OF CR 1000 E, Bartholomew, IN

Built 1935 Load: 29.2 t ADT: 860

CR 675W

Fair

Over: WOLF CREEK

01.25 N OF CR 200N, Boone, IN

Built 1990 Load: 29.2 t ADT: 120

SOUTH RIVER ROAD

Fair

Over: TRIBUTARY WABASH RIVER

00.10 W OF CR 200 W, Cass, IN

Built 2001 Load: 29.2 t ADT: 280

STEELMAN CHAPEL RD

Fair

Over: JR FORD DITCH

00.10 E OF THOMPSON RD, Gibson, IN

Built 1976 Load: 29.2 t ADT: 120

HUGHES RD

Fair

Over: RAMP RUN

00.50 W OF SR 75, Hendricks, IN

Built 1979 Load: 29.2 t ADT: 100

CR 575 NORTH

Fair

Over: HURRICANE CREEK

0.25 E OF CR 400 E, Johnson, IN

Built 1982 Load: 29.2 t ADT: 125

CR 350 NORTH

Fair

Over: SUGAR CREEK

0.80 E OF CR 700 E, Johnson, IN

Built 1975 Load: 29.2 t ADT: 500

GRAY BARN RD

Fair

Over: STEEN DITCH

00.28 S OF US 150 / 50, Knox, IN

Built 1950 Load: 29.2 t ADT: 130

JERICHO ROAD

Fair

Over: BLACK CREEK

00.73 W OF TERRELL ROAD, Knox, IN

Built 1986 Load: 29.2 t ADT: 130

FALL CREEK RD

Fair

Over: MUD CREEK

00.18 E OF SERGEANT RD, Marion, IN

Built 1984 Load: 29.2 t ADT: 16,051

N SYCAMORE ROAD

Fair

Over: SHERMAN EMMONS DITCH

00.30 N OF W 3B ROAD, Marshall, IN

Built 1962 Load: 29.2 t ADT: 475

DEEP CUT CONNECTOR

Fair

Over: BEAVER CREEK

0.02 S OF US 50, Martin, IN

Built 2013 Load: 29.2 t ADT: 63

BEREAN RD

Fair

Over: LAMBS CREEK

01.97 W UPPER PATTON RD, Morgan, IN

Built 1977 Load: 29.2 t ADT: 270

CARPENTER Rd

Fair

Over: SUGAR MILL Creek

00.70 W of NARROWS Rd, Parke, IN

Built 1960 Load: 29.2 t ADT: 26

CR 500N

Fair

Over: PEPPER CREEK

00.10 W JCT SR 149, Porter, IN

Built 1996 Load: 29.2 t ADT: 2,370

CR 75N

Fair

Over: EIGHT MILE CREEK

00.70 MI W of CR 500 W, Randolph, IN

Built 1983 Load: 29.2 t ADT: 114

CR 450 SOUTH

Fair

Over: DEER CREEK

00.15 W OF CR 800 E, Shelby, IN

Built 1996 Load: 29.2 t ADT: 100

CR 500N

Fair

Over: McFarland Ditch

00.18 E of CR 850 W, Tippecanoe, IN

Built 1972 Load: 29.2 t ADT: 540

CR 200W

Fair

Over: CICERO CREEK

00.30 S OF CR 200 S, Tipton, IN

Built 1963 Load: 29.2 t ADT: 875

State Line Road

Fair

Over: Clear Creek

00.80 N of CREWS PL, Vigo, IN

Built 1987 Load: 29.2 t ADT: 377

Independence Rd

Fair

Over: Kickapoo Creek

00.38 W of Kickapoo Rd, Warren, IN

Built 1969 Load: 29.2 t ADT: 350

SELVIN ROAD

Fair

Over: TRIBUTARY OF SUGAR CREEK

00.52 MI E OF GILES RD, Warrick, IN

Built 1999 Load: 29.2 t ADT: 140

CR 350 EAST

Fair

Over: MARKLEY DITCH

00.10 N OF CR 200 S, Wells, IN

Built 1930 Load: 29.2 t ADT: 244

CR 850W

Fair

Over: HURRICANE CREEK

00.10 S CR 700 S, Whitley, IN

Built 1997 Load: 29.2 t ADT: 100

SR 26

Fair

Over: MUD CREEK

02.75 E SR 213, Howard, IN

Built 1947 Load: 29.3 t ADT: 3,800

WINCHESTER ROAD

Fair

Over: HOLTHOUSE DITCH

0.50 MILES W OF US 27, Adams, IN

Built 1963 Load: 29.3 t ADT: 1,814

CR 1250S

Fair

Over: TURNOVER CREEK

00.70 W OF CR 700 W, Decatur, IN

Built 1930 Load: 29.3 t ADT: 110

CR 700S

Fair

Over: STONY DITCH

00.40 E of CR 700 E, Delaware, IN

Built 1984 Load: 29.3 t ADT: 260

CR 1050E

Fair

Over: SIX MILE CREEK

00.32 S OF E 150 N, Hancock, IN

Built 1960 Load: 29.3 t ADT: 1,490

MIDDLE HART STREET

Fair

Over: WILLIAMS DITCH

00.26 S OF BUTLER ROAD, Knox, IN

Built 1999 Load: 29.3 t ADT: 130

SUNSET DRIVE

Fair

Over: PIKE LAKE OUTLET

00.02 S OF ANCHORAGE RD, Kosciusko, IN

Built 1986 Load: 29.3 t ADT: 575

EAST 1ST ROAD

Fair

Over: YELLOW RIVER

00.10 W OF N GUMWOOD ROAD, Marshall, IN

Built 1961 Load: 29.3 t ADT: 400

CR 250 SOUTH

Fair

Over: LICK CREEK

0.10 W OF CR 205 E, Orange, IN

Built 1910 Load: 29.3 t ADT: 100

CR 350N

Fair

Over: HUFFMAN DITCH

00.50 W of CR 200 W, Spencer, IN

Built 1985 Load: 29.3 t ADT: 60

CR 650N

Fair

Over: LAKE DRAIN

00.43 W of CR 450 W, Spencer, IN

Built 1989 Load: 29.3 t ADT: 110

YEAGER DRIVE

Fair

Over: WEST FORK OF TURMAN CR

00.40 E EARLE PL, Vigo, IN

Built 1915 Load: 29.3 t ADT: 157

Old PALMYRA Rd

Fair

Over: South Fork BLUE River

00.30 N of SR 135, Washington, IN

Built 1993 Load: 29.3 t ADT: 244

SR 8

Fair

Over: COOK DITCH

00.24 W US 421, LaPorte, IN

Built 1933 Load: 29.4 t ADT: 3,522

SR 931 NB

Fair

Over: KOKOMO CREEK

02.55 N SR 26, Howard, IN

Built 1949 Load: 29.4 t ADT: 19,257

SR 39

Fair

Over: HARP DITCH #2

02.87 N SR 16, Pulaski, IN

Built 1950 Load: 29.4 t ADT: 1,355

US 40

Fair

Over: MUD CREEK

01.29 W SR 39, Hendricks, IN

Built 1921 Load: 29.4 t ADT: 9,854

SR 44

Fair

Over: BR LITTLE BLUE RIVER

05.75 E I-74, Shelby, IN

Built 1941 Load: 29.4 t ADT: 5,134

Showing 2,901-2,950 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.