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-70 EB

Fair

Over: INDIANA HIGH RAIL

05.37 W SR 1, Henry, IN

Built 1965 Load: 24.3 t ADT: 19,818

I-70 EB

Fair

Over: CLEAR CREEK

00.41 W US 35, Wayne, IN

Built 1959 Load: 24.3 t ADT: 26,587

CR 1000 E/HUNTER R

Fair

Over: I-74 EB/WB

02.96 E SR 267, Hendricks, IN

Built 1959 Load: 24.3 t ADT: 634

BLUE RIDGE ROAD

Fair

Over: I-74 EB/WB

00.87 E SR 44, Shelby, IN

Built 1959 Load: 24.3 t ADT: 495

912 WB RAMP TO I-9

Fair

Over: SHEFFIELD AVENUE

00.26 W US 41, Lake, IN

Built 1984 Load: 24.3 t ADT: 720

I-69 SB

Fair

Over: FUQUAY ROAD

00.78 W SR 662, Vanderburgh, IN

Built 1988 Load: 24.3 t ADT: 19,954

I-69 NB

Fair

Over: BOESCHE DITCH

01.61 N SR 62, Vanderburgh, IN

Built 1987 Load: 24.3 t ADT: 14,822

I-69 SB

Fair

Over: BOESCHE DITCH

01.61 N SR 62, Vanderburgh, IN

Built 1987 Load: 24.3 t ADT: 14,822

I-69 NB

Fair

Over: IND SOUTHERN RAILROAD

04.00 S I-64, Vanderburgh, IN

Built 1989 Load: 24.3 t ADT: 11,201

I-469 WB

Fair

Over: ST MARYS RIVER

00.45 W US 27, Allen, IN

Built 1990 Load: 24.3 t ADT: 9,709

CR 850N

Fair

Over: MUD CREEK

00.60 W OF CR 300 E, Boone, IN

Built 1900 Load: 24.3 t ADT: 290

CR 750N

Fair

Over: MUD CREEK

00.05 E OF CR 500 E, Boone, IN

Built 1986 Load: 24.3 t ADT: 120

HUNT CLUB ROAD

Fair

Over: FISHBACK CREEK

00.65 W OF CR 850 E, Boone, IN

Built 1970 Load: 24.3 t ADT: 680

CHARLTN/MEMPHIS RD

Fair

Over: SINKING FORK

00.10 SW of Whitting Hill, Clark, IN

Built 1982 Load: 24.3 t ADT: 780

ELEPHANT HILL Rd

Fair

Over: LICK Creek

00.50 NW of CR 200 N, Fayette, IN

Built 1970 Load: 24.3 t ADT: 100

KIEL RD

Fair

Over: HURRICANE CREEK

00.10 W OF CR 350 E, Gibson, IN

Built 1989 Load: 24.3 t ADT: 110

CR 600 WEST

Fair

Over: BRANCH CLEAR CREEK

0.2 MI S OF CR 800 N, Huntington, IN

Built 1970 Load: 24.3 t ADT: 105

REEL ROAD

Fair

Over: REEL CREEK

00.28 N OF STATE ROAD 241, Knox, IN

Built 1973 Load: 24.3 t ADT: 130

DAVIS ROAD

Fair

Over: SMALLS CREEK

00.45 S OF EUBANKS ROAD, Knox, IN

Built 1991 Load: 24.3 t ADT: 110

CR 400 NORTH

Fair

Over: FLY CREEK

00.30 W OF CR 200E, LaGrange, IN

Built 1920 Load: 24.3 t ADT: 925

SPARKSVILLE ROAD

Fair

Over: GUTHRIE CREEK

00.31 W OF LEESVILLE ROAD, Lawrence, IN

Built 1978 Load: 24.3 t ADT: 255

CR 500E

Fair

Over: COOK DITCH

00.10 N 1200 S, Porter, IN

Built 1930 Load: 24.3 t ADT: 350

CR 325E

Fair

Over: REEVES DITCH

00.10 N 1125 S, Porter, IN

Built 1930 Load: 24.3 t ADT: 20

CR 200N

Fair

Over: HUTTON DITCH

01.00 E CR 450 E, Porter, IN

Built 1970 Load: 24.3 t ADT: 240

St Phillips Rd

Fair

Over: Wolf Creek

00.19 MI S of CREAMERY RD, Posey, IN

Built 1970 Load: 24.3 t ADT: 527

CR 1100S

Fair

Over: N BRANCH OF CLIFTY CREEK

00.10 W OF BASE RD, Rush, IN

Built 1976 Load: 24.3 t ADT: 150

CR 660S

Fair

Over: Branch of Flint Creek

00.22 W of CR 375 W, Tippecanoe, IN

Built 1960 Load: 24.3 t ADT: 100

E COUNTY LINE RD

Fair

Over: SUGAR CREEK

00.09 S of CR 700 N, Tippecanoe, IN

Built 1967 Load: 24.3 t ADT: 64

DICKEY ROAD

Fair

Over: INDIANA HARBOR CANAL

00.50 NE MICHIGAN ST, Lake, IN

Built 1992 Load: 24.4 t ADT: 21,854

CR 250 S

Fair

Over: PIGEON CREEK

00.10 E OF OLD US 41, Gibson, IN

Built 1992 Load: 24.4 t ADT: 320

CR 550 W

Fair

Over: BRANCH OF NEWMAN LATERAL

00.10 N OF SR 68, Gibson, IN

Built 1935 Load: 24.4 t ADT: 220

CR 100E

Fair

Over: SWAIN DRAIN

00.10 S OF CR 375 E, Hendricks, IN

Built 1982 Load: 24.4 t ADT: 1,375

241ST AVENUE

Fair

Over: FULLER DITCH

00.50 W. of CLINE AVENUE, Lake, IN

Built 1960 Load: 24.4 t ADT: 584

ORIENTAL ST

Fair

Over: POGUES RUN

00.25 N OF MICHIGAN ST, Marion, IN

Built 1953 Load: 24.4 t ADT: 4,533

CR 150E

Fair

Over: LITTLE BLUE RIVER

00.20 S OF CR 900 N, Rush, IN

Built 1969 Load: 24.4 t ADT: 200

CR 250E

Fair

Over: BR LITTLE FLATROCK RIVER

00.20 S OF CR 600 S, Rush, IN

Built 1983 Load: 24.4 t ADT: 100

CR 50W

Fair

Over: HUFFMAN DITCH

00.34 N of SR 66, Spencer, IN

Built 1899 Load: 24.4 t ADT: 1,020

US 40

Fair

Over: DEER CREEK

00.76 E SR 243, Putnam, IN

Built 1937 Load: 24.5 t ADT: 6,260

I-64

Fair

Over: OHIO RIVER W WATER ST

00.11 E SR 111, Floyd, IN

Built 1961 Load: 24.5 t ADT: 80,030

CR 500 NORTH

Fair

Over: HOLTHOUSE DITCH

0.10 MILES E OF CR 400 W, Adams, IN

Built 1965 Load: 24.5 t ADT: 110

GRABILL RD

Fair

Over: ST JOSEPH RIVER

00.20 W SCHWARTZ ROAD, Allen, IN

Built 1965 Load: 24.5 t ADT: 10,300

OLD S.R. 46

Fair

Over: GREASY CREEK

.1 MI. E. OF GREASY CR RD, Brown, IN

Built 1928 Load: 24.5 t ADT: 2,400

CR 250 NORTH

Fair

Over: BRANCH OF KILMORE CREEK

0.10 E OF CR 300 E, Clinton, IN

Built 1938 Load: 24.5 t ADT: 102

STAT. HOLLOW RD

Fair

Over: SOUTH HOGAN CREEK

00.60 N OF US 50, Dearborn, IN

Built 1895 Load: 24.5 t ADT: 230

CR 58

Fair

Over: MEYER DITCH

00.60 E OF CR 137, Elkhart, IN

Built 1948 Load: 24.5 t ADT: 915

CR 350W

Fair

Over: SIMPLE BR OF SYMONS CR

00.20 S of CR 925 N, Fayette, IN

Built 1979 Load: 24.5 t ADT: 250

LONGWOOD RD

Fair

Over: BRANCH of WILLIAMS CREEK

00.10 W of CR 550 W, Fayette, IN

Built 1982 Load: 24.5 t ADT: 125

PACE RD

Fair

Over: N BRANCH OF GARRISON CR

00.80 W OF CR 650W, Fayette, IN

Built 1983 Load: 24.5 t ADT: 100

CR 400S

Fair

Over: N BR GARRISON CR

00.30 W of CR 550 W, Fayette, IN

Built 1925 Load: 24.5 t ADT: 100

LITTLE BEAR RD

Fair

Over: BEAR CREEK

00.10 E of CR 100 E, Fayette, IN

Built 1978 Load: 24.5 t ADT: 100

Showing 1,301-1,350 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.