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 1220N

Good

Over: VERNON FK MUSCATATUCK R

00.16 W OF CR 800 E, Jennings, IN

Built 2006 Load: 32.7 t ADT: 100

CR 500E

Good

Over: OTTER CREEK

00.51 N OF CR 80 N, Jennings, IN

Built 1999 Load: 32.7 t ADT: 150

CR 20W

Good

Over: VERNON FK MUSCATATUCK R

00.18 E OF CR 60 S, Jennings, IN

Built 1998 Load: 32.7 t ADT: 1,125

CR 225W

Good

Over: VERNON FK MUSCATATUCK R

00.15 S OF CR 170 S, Jennings, IN

Built 1976 Load: 32.7 t ADT: 700

CR 400W

Good

Over: VERNON FK MUSCATATUCK R

00.01 N OF CR 215 S, Jennings, IN

Built 2005 Load: 32.7 t ADT: 300

CR 400S

Good

Over: SIX MILE CREEK

00.06 W OF CR 700 W, Jennings, IN

Built 1998 Load: 32.7 t ADT: 150

CR 800W

Good

Over: S. FK MUSCATATUCK RIVER

00.38 S OF CR 1125 S, Jennings, IN

Built 1983 Load: 32.7 t ADT: 275

CR 900W

Good

Over: CANNA CREEK

00.13 N OF CR 1050 S, Jennings, IN

Built 1991 Load: 32.7 t ADT: 100

CR 900W

Good

Over: VERNON FK MUSCATATUCK R

00.83 N OF CR 700 S, Jennings, IN

Built 1995 Load: 32.7 t ADT: 250

CR 400W

Good

Over: CSX RR

00.05 N OF US 50, Jennings, IN

Built 2013 Load: 32.7 t ADT: 225

CR 400N

Good

Over: MUTTON CREEK

00.25 W OF CR 700 W, Jennings, IN

Built 2010 Load: 32.7 t ADT: 100

W. LONG ST.

Good

Over: UNNAMED CREEK

00.01 E OF CHILDS LANE, Jennings, IN

Built 2010 Load: 32.7 t ADT: 215

CR 675N

Good

Over: BRANCH OF SAND CREEK

00.29 W OF SR 3, Jennings, IN

Built 2010 Load: 32.7 t ADT: 100

CR 500E

Good

Over: CROOKED CREEK

00.01 S OF CR 20 N, Jennings, IN

Built 2012 Load: 32.7 t ADT: 100

CR 400W

Good

Over: TWO MILE CREEK

00.07 N OF CR 150 N, Jennings, IN

Built 2012 Load: 32.7 t ADT: 300

CR 800 EAST

Good

Over: BIG BLUE RIVER

0.30 S OF CR 650 S, Johnson, IN

Built 1975 Load: 32.7 t ADT: 2,101

PETERMAN ROAD

Good

Over: BUFFALO CREEK

0.20 S COUNTY LINE ROAD, Johnson, IN

Built 2000 Load: 32.7 t ADT: 5,787

KING STREET

Good

Over: HURRICANE CREEK

0.30 E OF HOME AVENUE, Johnson, IN

Built 2002 Load: 32.7 t ADT: 3,853

MAIN STREET

Good

Over: PLEASANT CREEK

0.10 E OF WASHINGTON ST, Johnson, IN

Built 2006 Load: 32.7 t ADT: 13,580

WASHINGTON STREET

Good

Over: PLEASANT CREEK

0.05 S OF MAIN STREET, Johnson, IN

Built 2003 Load: 32.7 t ADT: 1,529

WILLSHIRE DRIVE

Good

Over: TURKEY PEN CREEK

0.06 S OF WINCHESTER DR, Johnson, IN

Built 1996 Load: 32.7 t ADT: 434

CR 250 SOUTH

Good

Over: AMITY DITCH

0.70 E OF CR 510 E, Johnson, IN

Built 1999 Load: 32.7 t ADT: 366

CR 100 WEST

Good

Over: BRANCH OF RAY CREEK

0.10 N OF SR 44, Johnson, IN

Built 2002 Load: 32.7 t ADT: 218

CR 375 EAST

Good

Over: LEATHERWOOD CREEK

0.60 N OF CR 1000 N, Johnson, IN

Built 2005 Load: 32.7 t ADT: 348

CR 200 NORTH

Good

Over: POWEL DITCH

1.20 W OF US 31, Johnson, IN

Built 2006 Load: 32.7 t ADT: 6,811

CR 100 EAST

Good

Over: BUCKHART CREEK

0.30 S OF CR 300 S, Johnson, IN

Built 2008 Load: 32.7 t ADT: 2,167

MORGANTOWN RD

Good

Over: HONEY CREEK

0.01 @ MORGANTN & CR800N, Johnson, IN

Built 2009 Load: 32.7 t ADT: 9,095

CR 550 EAST

Good

Over: RANDSELL DITCH

0.20 N OF CR 700 N, Johnson, IN

Built 1995 Load: 32.7 t ADT: 220

CR 1050 NORTH

Good

Over: LEATHERWOOD CREEK

0.05 E OF CR 375 E, Johnson, IN

Built 1990 Load: 32.7 t ADT: 344

STOKELY ROAD

Good

Over: PLASS DITCH

00.48 E OF US 61, Knox, IN

Built 1979 Load: 32.7 t ADT: 220

BRIDGE ROAD

Good

Over: PLASS DITCH

00.40 N OF OLD DECKER ROA, Knox, IN

Built 1992 Load: 32.7 t ADT: 130

MONROE SCHOOL RD

Good

Over: MCCOY CREEK

00.38 NE HICKORY CORNER R, Knox, IN

Built 1940 Load: 32.7 t ADT: 130

HART STREET ROAD

Good

Over: UPPER DESHEE RIVER

00.36 NW OF STATE ROAD 27, Knox, IN

Built 1994 Load: 32.7 t ADT: 220

JONES ROAD

Good

Over: DITCH TO WHITE RIVER

00.07 E OF STATE ROAD 61, Knox, IN

Built 1990 Load: 32.7 t ADT: 10

BOWMAN ROAD

Good

Over: BLACK CREEK

00.60 S OF STATE ROAD 58, Knox, IN

Built 1991 Load: 32.7 t ADT: 130

MAIN STREET ROAD

Good

Over: WILLIAMS DITCH

00.18 S OF HENRY ROAD, Knox, IN

Built 1970 Load: 32.7 t ADT: 130

ROBINSON ROAD

Good

Over: KESSINGER DITCH

00.10 S OF US 150/50, Knox, IN

Built 1997 Load: 32.7 t ADT: 200

VASH ROAD

Good

Over: FLAT CREEK

01.07 NE OF STATE ROAD 55, Knox, IN

Built 1940 Load: 32.7 t ADT: 130

SUMMERS ROAD

Good

Over: ROBERSON DITCH

00.68 SW OF BICKNELL ROAD, Knox, IN

Built 1983 Load: 32.7 t ADT: 110

SCEPTER ROAD

Good

Over: INDIAN CREEK

00.37 NW OF GOLF COURSE R, Knox, IN

Built 1983 Load: 32.7 t ADT: 130

FORT KNOX DRIVE

Good

Over: SNAPP CREEK

00.22 N OF OLD TERRE HAUT, Knox, IN

Built 1988 Load: 32.7 t ADT: 170

MCCORMICK ROAD

Good

Over: SNAPP CREEK

00.02 S OF STATE ROAD 67, Knox, IN

Built 2002 Load: 32.7 t ADT: 110

HUNLEY ROAD

Good

Over: MARSH CREEK

00.46 W OF RISLEY ROAD, Knox, IN

Built 1970 Load: 32.7 t ADT: 200

P. PERRY ROAD

Good

Over: MARIAH CREEK

00.25 SE OF SPRINGTOWN RO, Knox, IN

Built 1971 Load: 32.7 t ADT: 250

CAMP ARTHUR ROAD

Good

Over: SMALLS CREEK

01.28 N OF THOMPSON ROAD, Knox, IN

Built 1983 Load: 32.7 t ADT: 140

OLD US 41

Good

Over: MARIAH CREEK

02.43 NW US 41/150, Knox, IN

Built 1960 Load: 32.7 t ADT: 300

WASHINGTON STREET

Good

Over: KELSO CREEK

00.05 W ELKS CLUB DRIVE, Knox, IN

Built 2014 Load: 32.7 t ADT: 1,790

6TH STREET

Good

Over: KELSO CREEK

00.01 E OF NIBLACK BLVD, Knox, IN

Built 1996 Load: 32.7 t ADT: 7,890

ST CLAIRE ROAD

Good

Over: SWAN POND DITCH

00.56 S OF WASHINGTON AVE, Knox, IN

Built 1989 Load: 32.7 t ADT: 7,890

OLD DECKER ROAD

Good

Over: MUDDY RUN

1.33 N OF STATE ROAD 241, Knox, IN

Built 2021 Load: 32.7 t ADT: 150

Showing 13,001-13,050 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.