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

SR 39

Fair

Over: WILTZIN DITCH

06.20 S SR 14, Pulaski, IN

Built 1950 Load: 34.0 t ADT: 1,218

US 40

Fair

Over: LITTLE BRANDYWINE CREEK

01.27 E SR 9, Hancock, IN

Built 1921 Load: 34.0 t ADT: 8,593

US 41 NB

Fair

Over: YOCUM DITCH

02.44 S SR441, Knox, IN

Built 1967 Load: 34.0 t ADT: 6,725

US 41 SB

Fair

Over: YOCUM DITCH

02.44 S SR441, Knox, IN

Built 1967 Load: 34.0 t ADT: 6,725

HILLCREST ROAD

Fair

Over: US 50 EB/WB & RAMP

00.13 W US 41, Knox, IN

Built 1961 Load: 34.0 t ADT: 2,237

US 50 EB (TOP)

Fair

Over: US 41 NB (MIDDLE)

01.20 E US 41, Knox, IN

Built 1967 Load: 34.0 t ADT: 7,973

SR 61

Fair

Over: SOUTHERN RR

00.27 S SR 62, Warrick, IN

Built 1970 Load: 34.0 t ADT: 2,844

SR 63 SB

Fair

Over: LITTLE VERMILLION RIVER

01.10 S SR 71, Vermillion, IN

Built 1976 Load: 34.0 t ADT: 7,180

SR 109

Fair

Over: MONTGOMERY CREEK

03.06 N US 40, Henry, IN

Built 1941 Load: 34.0 t ADT: 4,598

SR 142

Fair

Over: SNAKE CREEK

03.35 E SR 42, Morgan, IN

Built 1991 Load: 34.0 t ADT: 1,350

SR 145

Fair

Over: I-64

00.21 N SR 62, Perry, IN

Built 1973 Load: 34.0 t ADT: 484

SR 68/161

Fair

Over: I-64 EB/WB

00.75 E SR 161, Warrick, IN

Built 1972 Load: 34.0 t ADT: 1,064

SR 258

Fair

Over: LITTLE SALT CREEK

00.99 E SR 58, Jackson, IN

Built 1973 Load: 34.0 t ADT: 1,933

I-64 WBL

Fair

Over: TURKEY FORK

01.60 W SR 66, Crawford, IN

Built 1973 Load: 34.0 t ADT: 11,913

I-65 NB

Fair

Over: VERNON FK MUSCATATUCK RI

00.54 N US 31, Jackson, IN

Built 1955 Load: 34.0 t ADT: 18,400

I-65 SB

Fair

Over: I-65 RAMPS (5670)

03.61 N I-70, Marion, IN

Built 1970 Load: 34.0 t ADT: 47,275

I-65

Fair

Over: CLIFTON STREET

06.00 N I-70, Marion, IN

Built 1968 Load: 34.0 t ADT: 99,834

246TH ST/CR 700 N

Fair

Over: I-65 SB/NB

01.11 N SR 47, Boone, IN

Built 1970 Load: 34.0 t ADT: 43,674

CR 600 S

Fair

Over: I-65

01.00 S SR 114, Jasper, IN

Built 1966 Load: 34.0 t ADT: 514

I-70

Fair

Over: I-70 OFF/ ON RAMPS

00.77 W I-65, Marion, IN

Built 1973 Load: 34.0 t ADT: 137,908

I-70 WB

Fair

Over: MONTGOMERY CREEK

00.24 E SR 109, Henry, IN

Built 1965 Load: 34.0 t ADT: 18,260

I-70 EB

Fair

Over: SYMONS CREEK

04.42 E SR 103, Henry, IN

Built 1965 Load: 34.0 t ADT: 18,703

I-70 WB

Fair

Over: SYMONS CREEK

04.42 E SR 103, Henry, IN

Built 1965 Load: 34.0 t ADT: 18,703

I-74 RAMP

Fair

Over: SPRING CREEK

00.04 W SR 63, Vermillion, IN

Built 1959 Load: 34.0 t ADT: 2,390

I-90 RAMP TO SR 91

Fair

Over: I-90 GR CALUMET RIV RR

00.64 E SR 912, Lake, IN

Built 1984 Load: 34.0 t ADT: 1,060

I-94 EB

Fair

Over: CSX RR

00.63 E SR 49, Porter, IN

Built 1969 Load: 34.0 t ADT: 57,732

I-94 WB

Fair

Over: CSX RR

00.63 E SR 49, Porter, IN

Built 1969 Load: 34.0 t ADT: 28,915

W 56TH STR EB

Fair

Over: I-465 NB/SB

00.79 S I-65, Marion, IN

Built 1995 Load: 34.0 t ADT: 15,048

SR 265 WB

Fair

Over: LICK RUN

00.23 E US 31, Clark, IN

Built 1992 Load: 34.0 t ADT: 34,755

CR 400S

Fair

Over: COOKS CREEK

00.78 E OF US 31, Bartholomew, IN

Built 1982 Load: 34.0 t ADT: 2,000

CR 100W

Fair

Over: MUD PINE CREEK

00.10 S of CR 650 S, Benton, IN

Built 1966 Load: 34.0 t ADT: 55

CR 200S

Fair

Over: Little Pine Creek

00.10 W of CR 975 E, Benton, IN

Built 2017 Load: 34.0 t ADT: 28

CR 300E

Fair

Over: BROWNS WONDER CREEK

00.20 N OF CR 200 N, Boone, IN

Built 1940 Load: 34.0 t ADT: 120

CR 400E

Fair

Over: Middle Fork WILDCAT Cr

00.08 N of CR 700 S, Carroll, IN

Built 1982 Load: 34.0 t ADT: 49

CR 100N

Fair

Over: BACHELOR RUN

00.03 E of SR 75, Carroll, IN

Built 1969 Load: 34.0 t ADT: 632

OLD INDIANA 160

Fair

Over: SUGAR RUN

02.66 W SR 403, Clark, IN

Built 1968 Load: 34.0 t ADT: 4,370

CR 850 E

Fair

Over: BIG CREEK

00.30 S OF CR 950 S, Gibson, IN

Built 1982 Load: 34.0 t ADT: 80

CR 500 WEST

Fair

Over: LEMON CREEK

0.50 S OF CR 750 N, Greene, IN

Built 1920 Load: 34.0 t ADT: 110

146TH ST EAST

Fair

Over: COOL CREEK

00.41 W OF CAREY RD, Hamilton, IN

Built 1984 Load: 34.0 t ADT: 41,900

116TH ST EAST

Fair

Over: COOL CREEK

00.23 E OF GRAY RD, Hamilton, IN

Built 1955 Load: 34.0 t ADT: 72,880

NADORFF RD

Fair

Over: CORN CREEK

00.30 NE OF CROSS CREEK R, Harrison, IN

Built 1981 Load: 34.0 t ADT: 300

NEWCUT RD

Fair

Over: BRANCH OF CORN CREEK

00.20 N OF BRADFORD RD, Harrison, IN

Built 1988 Load: 34.0 t ADT: 790

CR 525W

Fair

Over: BRANCH OF RAMP RUN

00.05 N OF CR 350 N, Hendricks, IN

Built 1970 Load: 34.0 t ADT: 200

EWING ROAD

Fair

Over: BALL RICHARD DITCH

0.23 E OF CR 300 W, Jackson, IN

Built 1984 Load: 34.0 t ADT: 350

CR 1080 WEST

Fair

Over: MEADEL DITCH

0.75 MILES S OF CR 1200 S, Jasper, IN

Built 1983 Load: 34.0 t ADT: 207

CR 500 NORTH

Fair

Over: LITTLE SUGAR CREEK

0.25 W OF CR 700 E, Johnson, IN

Built 1965 Load: 34.0 t ADT: 2,658

BEAL ROAD

Fair

Over: DESHEE RIVER

01.05 S OF BAND MILL ROAD, Knox, IN

Built 1961 Load: 34.0 t ADT: 106

GRACE STREET

Fair

Over: CADY MARSH DITCH

00.30 S. of RIDGE RD., Lake, IN

Built 1985 Load: 34.0 t ADT: 6,025

HEADLEY STREET

Fair

Over: GRIFFY RESERVOIR

00.90 N MATLOCK RD, Monroe, IN

Built 1977 Load: 34.0 t ADT: 825

WEST WATER STREET

Fair

Over: LICK CREEK

0.03 W OF 3rd STREET, Orange, IN

Built 1963 Load: 34.0 t ADT: 600

Showing 6,301-6,350 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.