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

DRY RUN ROAD

Poor

Over: DRY RUN

1.30 N OF TOWER ROAD, Crawford, IN

Built 1905 Load: 16.8 t ADT: 411

VALLEY Rd

Poor

Over: Branch of RACCOON Creek

00.30 W of RACCOON Rd, Parke, IN

Built 1925 Load: 16.9 t ADT: 198

HULMAN St

Poor

Over: NEW THOMPSON DITCH

00.40 W FRUITRDGE, Vigo, IN

Built 1976 Load: 16.9 t ADT: 6,257

TANNEHILL RD

Poor

Over: DRIFTWOOD RIVER

01.14 W OF US 31, Bartholomew, IN

Built 1966 Load: 17.0 t ADT: 2,150

SHAFER RIDGE ROAD

Poor

Over: DRY RUN

1.20 E OF BAUER LANE, Crawford, IN

Built 1930 Load: 17.0 t ADT: 140

CR 250 E

Poor

Over: Branch of INDIAN Creek

00.40 SE of 660 S., Dubois, IN

Built 1990 Load: 17.0 t ADT: 2

CR 400N

Poor

Over: WILSON CREEK

0.5 MILES EAST OF CR 700, Jay, IN

Built 1984 Load: 17.0 t ADT: 138

LINDEN ST

Poor

Over: PLEASANT RUN

00.45 S OF PROSPECT ST, Marion, IN

Built 1922 Load: 17.0 t ADT: 603

CR 250 WEST

Poor

Over: KILMORE CREEK

0.50 N OF CR 300 N, Clinton, IN

Built 1923 Load: 17.1 t ADT: 103

CR 400S

Poor

Over: MUD CREEK

00.20 E OF CR 200 W, Fulton, IN

Built 1950 Load: 17.1 t ADT: 100

153RD AVENUE

Poor

Over: LAKE DALECARLIA

00.10 E. of COLFAX, Lake, IN

Built 1955 Load: 17.1 t ADT: 3,045

RED CRANE ROAD

Poor

Over: BRANCH GUTHRIE CREEK

02.02 N OF TUNNELTON RD, Lawrence, IN

Built 2004 Load: 17.1 t ADT: 255

JEFFERSON STREET

Poor

Over: LEATHERWOOD CREEK

00.01 N OF GROUNDHOG RD, Lawrence, IN

Built 1935 Load: 17.1 t ADT: 138

CR 500N

Poor

Over: LICK CREEK

00.10 W of CR 250 W, Fayette, IN

Built 1968 Load: 17.3 t ADT: 125

HARBISON ROAD

Poor

Over: JACKS DEFEAT CREEK

00.00 INT HARTSTRAIT ROAD, Monroe, IN

Built 1930 Load: 17.3 t ADT: 14

MORRIS ST

Poor

Over: SALEM CREEK

00.05 E OF RACEWAY RD, Marion, IN

Built 1959 Load: 17.4 t ADT: 9,267

CR 450 EAST

Poor

Over: DANIEL CREEK

0.40 N OF WABASH ROAD, Miami, IN

Built 1925 Load: 17.4 t ADT: 100

CR 600S

Poor

Over: SAND BRANCH

00.22 E OF CR 450 E, Bartholomew, IN

Built 1980 Load: 17.5 t ADT: 620

MAIN ST

Poor

Over: MILLSTONE CREEK

00.10 E OF EAST ST, Decatur, IN

Built 1935 Load: 17.5 t ADT: 1,210

RANDOLPH STREET

Poor

Over: YELLOW RIVER

00.10 S OF BECKNELL DRIVE, Marshall, IN

Built 1976 Load: 17.5 t ADT: 1,250

CR 315E

Poor

Over: MILL CREEK

00.56 N OF CR 225 S, Pulaski, IN

Built 1959 Load: 17.5 t ADT: 50

CR 900 WEST

Poor

Over: HOG RUN

0.60 N OF CR 550 N, Clinton, IN

Built 1933 Load: 17.6 t ADT: 102

SAND ROAD

Poor

Over: BLACK CREEK

00.65 W OF PAHMEIER ROAD, Knox, IN

Built 1920 Load: 17.8 t ADT: 153

CR 400S

Poor

Over: RAY COX DITCH

00.50 E OF CR 750 W, Tipton, IN

Built 1980 Load: 17.8 t ADT: 125

ST PETERS Rd

Poor

Over: EAST FORK TANNERS CREEK

00.30 N OF SR 46, Dearborn, IN

Built 1940 Load: 18.0 t ADT: 1,570

LAUMAN RD

Poor

Over: SOUTH HOGAN CREEK

01.60 N US 50, Dearborn, IN

Built 1940 Load: 18.0 t ADT: 100

Mulberry St

Poor

Over: CSX Railroad

00.06 MI S of E. GRANT ST, Posey, IN

Built 1960 Load: 18.0 t ADT: 628

SHIVELY Rd

Poor

Over: KLINE Ditch

00.30 E of MIAMI Hwy, St. Joseph, IN

Built 1935 Load: 18.0 t ADT: 242

CROOKED CREEK ROAD

Poor

Over: CROOKED CREEK

1.2 MI. N OF TC STEELE RD, Brown, IN

Built 1925 Load: 18.1 t ADT: 100

CR 400W

Poor

Over: RAMP RUN

00.05 S OF CR 200 N, Hendricks, IN

Built 1925 Load: 18.1 t ADT: 150

CR 600 WEST

Poor

Over: SOUTH FORK WILDCAT CREEK

0.40 N of CR 200 N, Clinton, IN

Built 1923 Load: 18.2 t ADT: 102

BINYON STREET

Poor

Over: CEDAR CREEK

00.10 W. of MORSE ST., Lake, IN

Built 1940 Load: 18.2 t ADT: 256

CR 700 SOUTH

Poor

Over: PATOKA RIVER

0.20 E OF CR 325 E, Orange, IN

Built 1885 Load: 18.2 t ADT: 100

400 NORTH

Poor

Over: MUTTON CREEK

1.8 MI SW OF HDQRTRS, Jackson, IN

Built 1982 Load: 18.2 t ADT: 140

CR 1100W

Poor

Over: N. FORK VERMILION RIVER

00.60 N of CR 800 S, Benton, IN

Built 1914 Load: 18.3 t ADT: 50

COLD SPRINGS ROAD

Poor

Over: SKINNER BRANCH

0.20 W OF CORWIN ROAD, Greene, IN

Built 1950 Load: 18.3 t ADT: 413

CR 550E (OLD US 31

Poor

Over: SUGAR CREEK

0.50 S OF CR 500 S, Johnson, IN

Built 1925 Load: 18.3 t ADT: 324

POTTERSVILLE RD

Poor

Over: BRANCH OF MILLS CREEK

01.30 N BRAYSVILLE RD, Owen, IN

Built 1940 Load: 18.3 t ADT: 860

SHORTER Rd

Poor

Over: STRANGERS Branch

00.30 W of PIATESVLE Rd, Parke, IN

Built 1930 Load: 18.3 t ADT: 727

WALKER RAMP RD

Poor

Over: BRANCH BIG RACCOON CR

00.10 N FERNDALE RD, Parke, IN

Built 1920 Load: 18.3 t ADT: 213

CR 300E

Poor

Over: BRANCH S FK PATOKA RIVER

00.08 S CR 725 S, Pike, IN

Built 1930 Load: 18.3 t ADT: 164

ARMSTRONG STATION

Poor

Over: SPRING CREEK

00.09 S OF SR 58, Lawrence, IN

Built 1915 Load: 18.4 t ADT: 149

CR 300W

Poor

Over: PATOKA RIVER

00.70 S CR 200 S, Pike, IN

Built 1930 Load: 18.5 t ADT: 15

PARRISH AVENUE

Poor

Over: BRANCH OF CEDAR LAKE

00.50 S. of 133rd Ave, Lake, IN

Built 1969 Load: 18.6 t ADT: 3,657

SLUSHER RD

Poor

Over: EDGERTON-CARSON DRAIN

00.01 W OF BROBST ROAD, Allen, IN

Built 1935 Load: 18.8 t ADT: 175

CR 730 SOUTH

Poor

Over: SINGER DITCH

0.20 W OF CR 1500 W, Greene, IN

Built 1950 Load: 18.9 t ADT: 110

SMITH VALLEY ROAD

Poor

Over: CONRAIL RAILROAD

0.30 E OF MERIDIAN ST, Johnson, IN

Built 1972 Load: 18.9 t ADT: 18,020

WILLINGER LN

Poor

Over: MILL Creek

00.20 N of Spring Street, Clark, IN

Built 1970 Load: 19.0 t ADT: 90

CR 750 W

Poor

Over: BR FALL FORK CLIFTY CREE

00.60 N OF CR 480 S, Decatur, IN

Built 1925 Load: 19.0 t ADT: 110

CR 350W

Poor

Over: WEHRLY DITCH

0.9 MILES NORTH OF SR 26, Jay, IN

Built 1984 Load: 19.0 t ADT: 74

Showing 18,801-18,850 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.