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

US 30 EB

Fair

Over: ROBINSON DITCH

02.60 E SR 19, Kosciusko, IN

Built 1971 Load: 50.2 t ADT: 8,757

SR 32

Fair

Over: ISENHOUR DITCH

01.97 E SR 39, Boone, IN

Built 2000 Load: 50.2 t ADT: 3,770

US 150

Fair

Over: LICK CREEK

03.43 W SR 37, Orange, IN

Built 2000 Load: 50.2 t ADT: 5,365

DOMBEY RD/750 W

Fair

Over: I-90 EB/WB

00.63 E I-94, Porter, IN

Built 1956 Load: 50.2 t ADT: 3,860

NOTESTINE RD

Fair

Over: WERTZ DITCH

00.10 E RUPERT ROAD, Allen, IN

Built 1970 Load: 50.2 t ADT: 703

MICHIGAN ROAD

Fair

Over: Branch of ROGERS RUN

00.10 E of Marysville Roa, Clark, IN

Built 1985 Load: 50.2 t ADT: 390

NEW ALBANY STREET

Fair

Over: CAMP RUN

00.10 SW of U.S. 31, Clark, IN

Built 1957 Load: 50.2 t ADT: 210

I-90 WB

Fair

Over: CONRAIL RR

01.85 E US 421, LaPorte, IN

Built 1956 Load: 50.3 t ADT: 12,615

WESTPORT ROAD

Fair

Over: FLAG RUN

00.00 S of Tunnel Mill Ro, Clark, IN

Built 1950 Load: 50.3 t ADT: 740

CR 700W

Fair

Over: CAMP CREEK

00.12 N of MAIN ST, Jefferson, IN

Built 1985 Load: 50.3 t ADT: 200

CR 650W

Fair

Over: HANNA ARM-TUESBURG DITCH

00.02 S BIGLER RD, LaPorte, IN

Built 1976 Load: 50.3 t ADT: 425

HOLT R0AD

Fair

Over: LITTLE EAGLE CREEK

00.35 S OF 10TH STREET, Marion, IN

Built 1977 Load: 50.3 t ADT: 8,956

82ND STREET WBL

Fair

Over: WHITE RIVER

00.50 E OF KEYSTONE AVENU, Marion, IN

Built 1988 Load: 50.3 t ADT: 24,038

N ROSE ROAD

Fair

Over: JESSE MCKESSON DITCH

00.80 N OF 1ST ROAD, Marshall, IN

Built 1980 Load: 50.3 t ADT: 100

CR 900E

Fair

Over: CLEAR CREEK

00.20 N of US 36, Putnam, IN

Built 2003 Load: 50.3 t ADT: 130

CR 1000S

Fair

Over: SPRING CREEK

00.90 E CR 300 E, White, IN

Built 1983 Load: 50.3 t ADT: 100

I-90 EB

Fair

Over: PRAIRIE DUNELAND BIKE TR

01.71 W SR 149, Porter, IN

Built 1956 Load: 50.4 t ADT: 16,295

I-90 WB

Fair

Over: PRAIRIE-DUNELAND BIKE TR

01.71 W SR 149, Porter, IN

Built 1956 Load: 50.4 t ADT: 16,295

FIVE OAKS ROAD

Fair

Over: VIEKE DITCH

00.72 E OF 6TH STREET ROA, Knox, IN

Built 1960 Load: 50.4 t ADT: 130

US 50 WB

Fair

Over: DUNN DITCH

01.52 E SR 241, Knox, IN

Built 1999 Load: 50.5 t ADT: 4,597

US 50

Fair

Over: GOSS DITCH

01.00 E SR 235, Jackson, IN

Built 1937 Load: 50.5 t ADT: 5,464

SR 56

Fair

Over: ISLAND BRANCH CREEK

03.35 E SR 262, Ohio, IN

Built 1954 Load: 50.5 t ADT: 7,110

I-74 EB

Fair

Over: NORTH FORK SPRING CREEK

00.79 W SR 63, Vermillion, IN

Built 1959 Load: 50.5 t ADT: 21,224

CR 375 W/BERGER RD

Fair

Over: I-90

03.89 W SR 9, LaGrange, IN

Built 1956 Load: 50.5 t ADT: 56

CR 300W

Fair

Over: I-90 EB/WB

03.11 W SR 9, LaGrange, IN

Built 1956 Load: 50.5 t ADT: 171

CR 450E

Fair

Over: I-90 EB/WB

02.04 E SR 827, Steuben, IN

Built 1956 Load: 50.5 t ADT: 68

I-465 WB

Fair

Over: BLUFF ROAD

1.29 W US 31, Marion, IN

Built 1962 Load: 50.5 t ADT: 58,751

ALLEN LN

Fair

Over: LOCUST CREEK

00.10 W OF ST JOSEPH AVE, Vanderburgh, IN

Built 1974 Load: 50.5 t ADT: 3,965

WILLIAMS RD

Fair

Over: LITTLE WILLIAMS CREEK

00.20 W of CR 150 W, Fayette, IN

Built 1975 Load: 50.6 t ADT: 100

CR 50 WEST

Fair

Over: HOWE DITCH

0.00 MILES S OF CR 800 S, Jasper, IN

Built 2005 Load: 50.6 t ADT: 166

CR 1400S

Fair

Over: SLOCUM DITCH

00.50 W CR 1050 W, LaPorte, IN

Built 1923 Load: 50.6 t ADT: 100

VELOCIPEDE PIKE

Fair

Over: INDIAN CREEK

00.30 W OF STONE ROAD, Union, IN

Built 1965 Load: 50.6 t ADT: 200

EVINGER Ave

Fair

Over: W LITTLE SUGAR CREEK

00.30 E TIFFIN PL, Vigo, IN

Built 1980 Load: 50.6 t ADT: 283

CR 850W

Fair

Over: I-90 EB/WB

01.05 E SR 327, Steuben, IN

Built 1956 Load: 50.7 t ADT: 50

CR 100 NORTH

Fair

Over: YELLOW CREEK

0.40 MILES W OF CR 200 E, Adams, IN

Built 2007 Load: 50.7 t ADT: 110

CR 950W

Fair

Over: WEST BRANCH TRAIL CREEK

00.20 N CR 300 N, LaPorte, IN

Built 1935 Load: 50.7 t ADT: 100

LITTLE POINT RD

Fair

Over: MUD CREEK

00.23 S OF 1050 N, Morgan, IN

Built 1968 Load: 50.7 t ADT: 1,440

CR 300N

Fair

Over: CLEAR CREEK

00.10 W of CR 500 E, Putnam, IN

Built 1920 Load: 50.7 t ADT: 160

I-90 WB

Fair

Over: CRUIKSHANK ROAD

01.50 E I-94, Porter, IN

Built 1956 Load: 50.8 t ADT: 17,335

CR 19

Fair

Over: GARRETT CITY DITCH

00.60 S OF CR 48, DeKalb, IN

Built 1986 Load: 50.8 t ADT: 250

CR 500N

Fair

Over: KILLBUCK CREEK

00.01 E of CR 675 W, Delaware, IN

Built 1991 Load: 50.8 t ADT: 260

US 30 EB

Fair

Over: DANNER DITCH

01.59 E SR 19, Kosciusko, IN

Built 1971 Load: 50.9 t ADT: 8,757

US 52

Fair

Over: JOHNSONS CREEK

04.61 E SR 9, Shelby, IN

Built 1926 Load: 50.9 t ADT: 5,893

SR 75

Fair

Over: BOYLES DITCH

04.15 S SR 26, Clinton, IN

Built 1968 Load: 50.9 t ADT: 1,279

I-65 NB

Fair

Over: SR 252

04.32 N US 31, Shelby, IN

Built 1968 Load: 50.9 t ADT: 24,134

I-65 SB

Fair

Over: SR 252

04.32 N US 31, Shelby, IN

Built 1968 Load: 50.9 t ADT: 25,601

I-74 WB

Fair

Over: SNAIL CREEK

06.18 W SR 9, Shelby, IN

Built 1953 Load: 50.9 t ADT: 18,726

I-90 WB

Fair

Over: SAMUELSON RD/CR 450 W

01.56 W SR 149, Porter, IN

Built 1956 Load: 50.9 t ADT: 16,295

CR 4/1150 W

Fair

Over: I-90

01.59 E SR 13, LaGrange, IN

Built 1956 Load: 50.9 t ADT: 498

CR 800 W/FERGUSON

Fair

Over: I-90 EB/WB

05.10 E SR 13, LaGrange, IN

Built 1956 Load: 50.9 t ADT: 224

Showing 9,501-9,550 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.