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 800 WEST

Poor

Over: HOFFMAN LAKE OUTLET

00.10 N OF US 30, Kosciusko, IN

Built 1974 Load: 30.5 t ADT: 725

CR 950 WEST

Poor

Over: MIDDLE FORK YELLOW RIVER

00.50 S OF CR 1350 N, Kosciusko, IN

Built 1980 Load: 30.5 t ADT: 200

PEACH Rd

Poor

Over: PLACE Ditch

00.30 N of JACKSON Rd, St. Joseph, IN

Built 1971 Load: 30.5 t ADT: 391

CR 1650S

Poor

Over: COAL Creek

00.20 W of CR 200 W, Vermillion, IN

Built 1965 Load: 30.5 t ADT: 117

ATLANTIC RD

Poor

Over: THORPE CREEK

00.04 N OF 136TH ST, Hamilton, IN

Built 1950 Load: 30.6 t ADT: 260

LOWES RD

Poor

Over: LAKE SHAFER

00.05 NW E SHAFER DR, White, IN

Built 1970 Load: 30.6 t ADT: 1,200

CR 300S

Poor

Over: WALNUT CREEK

00.60 E OF SR 15, Kosciusko, IN

Built 1985 Load: 30.7 t ADT: 150

CR 1100 W/LTL POIN

Poor

Over: I-70 EB/WB

08.56 W SR 39, Morgan, IN

Built 1966 Load: 30.8 t ADT: 772

I-465 WB

Poor

Over: SR 37/HARDING ST

2.10 W US 31, Marion, IN

Built 1961 Load: 30.8 t ADT: 54,583

UNION VALLEY ROAD

Poor

Over: BUCHER DITCH

0.20 S OF SR 157, Greene, IN

Built 1977 Load: 30.8 t ADT: 110

IRON BRIDGE RD

Poor

Over: NATURAL DRAIN

00.55 S OF ERNST ROAD, Allen, IN

Built 1976 Load: 30.9 t ADT: 102

CR 450 SOUTH

Poor

Over: LAKE MOHEE CREEK

00.50 W OF 175 W, Blackford, IN

Built 1960 Load: 31.0 t ADT: 328

45TH STREET

Poor

Over: HART DITCH

00.10 W. of WHITE OAK AVE, Lake, IN

Built 1960 Load: 31.0 t ADT: 16,906

82ND STREET EB

Poor

Over: WHITE RIVER

00.50 E KEYSTONE AVENUE, Marion, IN

Built 1941 Load: 31.0 t ADT: 22,060

MANN RD

Poor

Over: BIG CREEK

00.10 E OF BIXLER RD, Vanderburgh, IN

Built 1995 Load: 31.0 t ADT: 15

MULBERRY ST

Poor

Over: CRIETZ CREEK

00.10 N of US 40, Wayne, IN

Built 1935 Load: 31.0 t ADT: 467

SR 32

Poor

Over: FINLEY CREEK

01.24 E US 421, Boone, IN

Built 1958 Load: 31.1 t ADT: 7,502

I-65 NB ON RAMP

Poor

Over: BUSHS RUN

01.48 N I-465, Marion, IN

Built 1960 Load: 31.1 t ADT: 1,658

I-69 SB

Poor

Over: KILLBUCK CREEK

00.93 N SR 332, Delaware, IN

Built 1963 Load: 31.1 t ADT: 14,852

I-70 EB

Poor

Over: PLUM CREEK

02.44 E SR 1, Wayne, IN

Built 1962 Load: 31.1 t ADT: 18,535

I-70 WB

Poor

Over: PLUM CREEK

02.44 E SR 1, Wayne, IN

Built 1962 Load: 31.1 t ADT: 18,431

KLERNER LANE

Poor

Over: I-265 EB/WB

00.40 E SR 111, Floyd, IN

Built 1979 Load: 31.1 t ADT: 4,561

CR 1400 NORTH

Poor

Over: SQUIRREL CREEK

0.10 W OF CR 400 E, Miami, IN

Built 1945 Load: 31.1 t ADT: 125

CR 450N

Poor

Over: LEATHERWOOD Creek

00.20 E of US 41, Parke, IN

Built 1970 Load: 31.3 t ADT: 95

SR 62

Poor

Over: EVANSVILLE WESTERN RR

04.19 W US 41, Vanderburgh, IN

Built 1956 Load: 31.4 t ADT: 44,520

SR 246

Poor

Over: EAST FORK TURMAN CREEK

00.59 W US 41, Vigo, IN

Built 1936 Load: 31.4 t ADT: 1,188

PAULDING RD

Poor

Over: TRIER DRAIN

00.30 W WAYNE TRACE, Allen, IN

Built 1966 Load: 31.4 t ADT: 9,025

Prophets Rock Rd

Poor

Over: Burnett Creek

00.15 E of CR 300 E, Tippecanoe, IN

Built 1963 Load: 31.4 t ADT: 1,729

Gun Club Rd

Poor

Over: McFadden Creek

00.55 MI N of SR 62, Posey, IN

Built 1976 Load: 31.5 t ADT: 149

CR 875W

Poor

Over: PITNER DITCH

00.10 S CR 2150 S, LaPorte, IN

Built 1987 Load: 31.6 t ADT: 175

SR 3

Poor

Over: SALAMONIE RIVER

01.32 S SR 218, Wells, IN

Built 1933 Load: 31.7 t ADT: 3,021

FRANKLIN ST

Poor

Over: PIGEON CREEK & WALK PATH

00.10 W OF 7TH AVE, Vanderburgh, IN

Built 1932 Load: 31.7 t ADT: 6,432

OLD SR 337

Poor

Over: BUCK CREEK

02.84 N SR 11, Harrison, IN

Built 1965 Load: 31.8 t ADT: 760

I-465 EB

Poor

Over: WEST 96TH STREET

01.22 W US 421, Marion, IN

Built 1967 Load: 31.8 t ADT: 57,399

I-465 WB

Poor

Over: WEST 96TH STREET

01.22 W US 421, Marion, IN

Built 1967 Load: 31.8 t ADT: 55,699

CR 1000E

Poor

Over: BIG EAGLE CREEK

00.40 N OF SR 32, Boone, IN

Built 1925 Load: 31.8 t ADT: 300

CR 525 S

Poor

Over: LOEFLER DITCH

00.30 E OF CR 500 W, Gibson, IN

Built 1900 Load: 31.8 t ADT: 10

CR 600S

Poor

Over: SYMONS CREEK

00.75 W OF DUBLIN PIKE, Henry, IN

Built 1980 Load: 31.8 t ADT: 150

CR 300W

Poor

Over: N BRANCH ELKHART RIVER

00.24 S OF CR 900 N, Noble, IN

Built 1960 Load: 31.8 t ADT: 480

CR 100S

Poor

Over: ROCK Run Creek

00.60 W of COOKE Rd, Parke, IN

Built 1960 Load: 31.8 t ADT: 115

CR 250N

Poor

Over: W BRANCH KICKAPOO CR

00.63 E MOUNTZ RD, Warren, IN

Built 1915 Load: 31.8 t ADT: 60

CR 500N

Poor

Over: LOWS BRANCH

01.00 MI E OF SR 28, Randolph, IN

Built 1930 Load: 32.0 t ADT: 142

I-64 EB

Poor

Over: SR 62/64 EB/WB

01.63 W US 150, Floyd, IN

Built 1974 Load: 32.1 t ADT: 15,821

106TH ST EAST

Poor

Over: MUD CREEK

00.19 E OF CUMBERLAND RD, Hamilton, IN

Built 1980 Load: 32.1 t ADT: 11,970

CR 450E

Poor

Over: BR LITTLE FLATROCK RIVER

00.70 N OF CR 450 S, Rush, IN

Built 1900 Load: 32.2 t ADT: 450

US 40

Poor

Over: ABANDONED RR

01.57 E SR 46, Vigo, IN

Built 1921 Load: 32.3 t ADT: 12,258

CR 475E

Poor

Over: KELL Ditch

00.30 N of CR 750 N, Fountain, IN

Built 1962 Load: 32.3 t ADT: 120

SR 16

Poor

Over: Silver Creek Branch

01.47 E SR 105, Huntington, IN

Built 1992 Load: 32.4 t ADT: 963

US 40

Poor

Over: SERVICE RD - STATE FARM

00.99 W SR 243, Putnam, IN

Built 1985 Load: 32.4 t ADT: 5,489

CR 500 WEST

Poor

Over: CROOKED CREEK

00.20 N OF CR 250 N, Cass, IN

Built 1977 Load: 32.4 t ADT: 110

Showing 19,201-19,250 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.