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 1050E

Fair

Over: I-90 EB/WB

02.74 W SR 327, LaGrange, IN

Built 1956 Load: 50.9 t ADT: 131

CR 500 NORTH

Fair

Over: STUMP DITCH

0.30 W OF CR 1000 E, Clinton, IN

Built 1993 Load: 50.9 t ADT: 102

CR 575 WEST

Fair

Over: INDIAN CREEK

0.10 S OF CR 700 S, Johnson, IN

Built 1988 Load: 50.9 t ADT: 477

WEST 2B ROAD

Fair

Over: SHERMAN EMMONS DITCH

00.20 W OF ROSE ROAD, Marshall, IN

Built 1986 Load: 50.9 t ADT: 100

SOUTH HICKORY ROAD

Fair

Over: OUTLET ARM DITCH

00.60 S OF E 15th ROAD, Marshall, IN

Built 1989 Load: 50.9 t ADT: 100

18TH B ROAD

Fair

Over: WARNER DITCH

00.30 W OF LINDEN ROAD, Marshall, IN

Built 1988 Load: 50.9 t ADT: 100

DUNLAPSVILLE ROAD

Fair

Over: BROOKVILLE LAKE

02.20 W OF SR 101, Union, IN

Built 1974 Load: 50.9 t ADT: 550

SAND RUN ROAD

Fair

Over: INDIAN CREEK

00.50 E OF STONE ROAD, Union, IN

Built 1981 Load: 50.9 t ADT: 200

THORPE Rd

Fair

Over: SUGAR CREEK

00.40 S OLD PARIS, Vigo, IN

Built 1979 Load: 50.9 t ADT: 772

CR 500 N

Fair

Over: SILVER CREEK

00.10 W OF CR 800 E, Wabash, IN

Built 1987 Load: 50.9 t ADT: 220

SR 5

Fair

Over: WABASH RIVER ROUSH LAKE

1.21 MI S. OF US 224, Huntington, IN

Built 1965 Load: 50.9 t ADT: 4,015

US 36

Fair

Over: MARTINDALE CREEK

03.68 E SR 1, Randolph, IN

Built 1941 Load: 51.0 t ADT: 2,417

US 41

Fair

Over: BIG SHAWNEE CREEK

00.39 N SR 55, Fountain, IN

Built 1924 Load: 51.0 t ADT: 3,702

LORTIE RD

Fair

Over: HOFFMAN DRAIN

00.50 S PAULDING ROAD, Allen, IN

Built 1963 Load: 51.0 t ADT: 156

UPPER SALT CR ROAD

Fair

Over: BRANCH OF N FORK SALT CR

0.2 MI. S. HAMILTON CR RD, Brown, IN

Built 1962 Load: 51.0 t ADT: 250

CR 600N

Fair

Over: E BRANCH TWELVE MILE CR.

00.05 W OF CR 1050 E, Cass, IN

Built 1983 Load: 51.0 t ADT: 110

TILLOTSON AVENUE

Fair

Over: BUCK CREEK

00.22 N OF CR 150 S, Delaware, IN

Built 1978 Load: 51.0 t ADT: 9,490

CELESTINE Rd S

Fair

Over: Branch of HALL Creek

01.00 S of SR 164, Dubois, IN

Built 1988 Load: 51.0 t ADT: 1,072

CR 1800N

Fair

Over: BACK CREEK

01.00 E SR 9, Madison, IN

Built 2000 Load: 51.0 t ADT: 174

CR 700N

Fair

Over: LAMBERTSON DITCH

00.40 E SR 37, Madison, IN

Built 1989 Load: 51.0 t ADT: 214

CR 875W

Fair

Over: BRANCH OF PIPE CREEK

00.20 N CR 400 N, Madison, IN

Built 1985 Load: 51.0 t ADT: 147

CR 800S

Fair

Over: FORT DITCH

00.20 E CR 300 E, Madison, IN

Built 1991 Load: 51.0 t ADT: 147

CR 800 EAST

Fair

Over: FERGUSON DITCH

00.70 N OF CR 1000 N, Wells, IN

Built 2004 Load: 51.0 t ADT: 100

FRANK FISHER RD

Fair

Over: BRANCH OF EAST FORK

00.20 N of Northern Road, Clark, IN

Built 1984 Load: 51.1 t ADT: 200

US 41 NB/SB

Fair

Over: GTW RR

02.80 N US 30, Lake, IN

Built 2018 Load: 51.2 t ADT: 48,200

SR 43

Fair

Over: BIG CREEK

03.32 S US 24, White, IN

Built 2012 Load: 51.2 t ADT: 4,416

US 52

Fair

Over: BREIER CREEK

04.06 E I-465, Marion, IN

Built 1960 Load: 51.2 t ADT: 13,745

SR 142

Fair

Over: BR MILL HOLLOW BRANCH

00.09 W SR 39, Morgan, IN

Built 2005 Load: 51.2 t ADT: 1,700

GREENTREE ROAD

Fair

Over: VIEKE DITCH

00.36 W OF 6TH STREET ROA, Knox, IN

Built 2003 Load: 51.2 t ADT: 130

OLD BRUCEVILLE RD

Fair

Over: BRANCH OF SNAPP CREEK

00.11 W OF CREEKSIDE DRIV, Knox, IN

Built 1960 Load: 51.2 t ADT: 170

US 40

Fair

Over: WALNUT CREEK

06.61 W SR 243, Putnam, IN

Built 1940 Load: 51.3 t ADT: 6,793

I-90 RAMP/SR 39

Fair

Over: I-90 EB/WB

00.42 E SR 39, LaPorte, IN

Built 1956 Load: 51.3 t ADT: 1,660

CR 1000 SOUTH

Fair

Over: BREWSTER DITCH

0.10 MILES E OF CR 450 E, Adams, IN

Built 1998 Load: 51.3 t ADT: 110

CR 427

Fair

Over: CEDAR CREEK

00.02 N OF CR 56, DeKalb, IN

Built 1980 Load: 51.3 t ADT: 5,150

CR 600E

Fair

Over: GRASSY Fork HALL Creek

00.70 S of SCHNELLVILLE R, Dubois, IN

Built 1993 Load: 51.3 t ADT: 5

CR 150N

Fair

Over: Tributary of FLAT Creek

00.50 E of CR 750 W, Dubois, IN

Built 1994 Load: 51.3 t ADT: 522

CR 150E

Fair

Over: VILLAGE CREEK

00.10 S ALQUINA RD, Fayette, IN

Built 2013 Load: 51.3 t ADT: 275

CR 1040 WEST

Fair

Over: DRY CREEK

0.41 S OF CR 150 S, Jackson, IN

Built 2009 Load: 51.3 t ADT: 60

CR 550 WEST

Fair

Over: HONEY CREEK

0.30 S OF SMITH VALLEY RD, Johnson, IN

Built 1986 Load: 51.3 t ADT: 605

NORTH GRAPE ROAD

Fair

Over: EAST BUNCH DITCH

00.30 S OF E 3RD ROAD, Marshall, IN

Built 1990 Load: 51.3 t ADT: 125

MOONGLOW ROAD

Fair

Over: BIG OX CREEK

00.76 W OF BOATMAN RD, Scott, IN

Built 1965 Load: 51.3 t ADT: 100

BATTLEROW PLACE

Fair

Over: PRAIRIE CREEK

00.30 N PIETY DR, Vigo, IN

Built 1989 Load: 51.3 t ADT: 252

WASHINGTON CENTER

Fair

Over: SPY RUN CREEK

00.40 W OF SR 3, Allen, IN

Built 2018 Load: 51.4 t ADT: 14,100

169TH STREET

Fair

Over: CONRAIL RAILROAD

00.30 W. of KENNEDY AVE., Lake, IN

Built 1966 Load: 51.4 t ADT: 11,308

SYCAMORE ROAD

Fair

Over: EAST FORK OF FISH CREEK

00.10 W OF SR 46, Owen, IN

Built 1988 Load: 51.4 t ADT: 60

GOSS SCHOOL RD

Fair

Over: BR S FK BLUE RIVER

00.60 W of BLUE RIVER Rd, Washington, IN

Built 1966 Load: 51.4 t ADT: 245

I-90 EB

Fair

Over: IND HARBOR BELT RR

00.89 W US 41, Lake, IN

Built 1956 Load: 51.5 t ADT: 17,450

I-90 WB

Fair

Over: IND HARBOR BELT RR

00.89 W US 41, Lake, IN

Built 1956 Load: 51.5 t ADT: 17,450

I-90 WB

Fair

Over: US 35

01.41 W SR 39, LaPorte, IN

Built 1956 Load: 51.5 t ADT: 12,615

CR 600E

Fair

Over: I-90 EB/WB

03.83 W SR 827, Steuben, IN

Built 1956 Load: 51.5 t ADT: 727

Showing 9,551-9,600 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.