Total Bridges
18,630
Public highway bridges in Indiana
State profile · Below national median SD
Indiana bridge safety
Condition ratings, load ratings, and structural-deficiency data for every public highway bridge in Indiana — drawn straight from the FHWA National Bridge Inventory.
- 18,630
- Public bridges
- 36.1%
- Good condition
- 4.9%
- Poor condition
- 4.9%
- Structurally deficient
Good Condition
36.1%
6,733 bridges rated 7-9
-13.9pp vs 50% benchmark
Poor Condition
4.9%
920 bridges rated 0-4
Structurally Deficient
4.9%
920 bridges flagged for repair priority
-2.1pp vs national avg 7.0%
Indiana vs national bridge condition
Indiana — Good condition share 36.1%
National avg
Share of bridges rated 7-9 on the FHWA 0-9 scale (deck, superstructure, substructure all good).
Indiana — Structurally deficient share 16.5%
National avg
Lower is better. Bar maxes at 30% (worst-state ceiling). National average sits at 7.0%.
Condition Distribution
Bridge inventory deck-condition mix — Indiana (FHWA NBI)
Counties (92)
Adams 191 Allen 601 Bartholomew 263 Benton 147 Blackford 56 Boone 235 Brown 34 Carroll 159 Cass 161 Clark 144 Clay 144 Clinton 205 Crawford 117 Daviess 205 DeKalb 147 Dearborn 139 Decatur 141 Delaware 272 Dubois 214 Elkhart 272 Fayette 98 Floyd 144 Fountain 195 Franklin 158 Fulton 82 Gibson 348 Grant 278 Greene 233 Hamilton 440 Hancock 189 Harrison 124 Hendricks 341 Henry 192 Howard 194 Huntington 183 Jackson 308 Jasper 186 Jay 124 Jefferson 151 Jennings 148 Johnson 213 Knox 282 Kosciusko 145 LaGrange 100 LaPorte 229 Lake 488 Lawrence 158 Madison 297 Marion 964 Marshall 185 Martin 104 Miami 165 Monroe 226 Montgomery 241 Morgan 241 Newton 167 Noble 88 Ohio 41 Orange 133 Owen 143 Parke 195 Perry 146 Pike 164 Porter 280 Posey 205 Pulaski 100 Putnam 284 Randolph 253 Ripley 188 Rush 223 Scott 113 Shelby 243 Spencer 241 St. Joseph 228 Starke 85 Steuben 134 Sullivan 208 Switzerland 62 Tippecanoe 329 Tipton 109 Union 58 Vanderburgh 286 Vermillion 125 Vigo 294 Wabash 189 Warren 136 Warrick 183 Washington 173 Wayne 342 Wells 155 White 214 Whitley 112
Indiana vs nearby ranks
Adjacent states on the structurally deficient leaderboard (lower share = better)
States are ranked by share of bridges flagged structurally deficient — the FHWA classification for any span where deck, superstructure, or substructure carries a condition rating of 4 or below. Lower percentages indicate stronger maintenance funding and inspection follow-through. States here sit immediately above and below Indiana on the same metric.
05
Arkansas
4.71% top marginal rate
53
Washington
4.81% top marginal rate
18
Indiana
4.94% top marginal rate
20
Kansas
5.25% top marginal rate
56
Wyoming
5.41% top marginal rate
Bridges Needing Most Attention in Indiana
Six lowest-condition bridges in Indiana, ranked by composite NBI rating. Each is inspected at least every 24 months.
MOUNT LIBERTY ROAD
Structurally DeficientOver: MOUNT LIBERTY CREEK
00.10 S 4 MILE RD, Brown, IN
Built 1929 Load: 2.7 t ADT: 150
CR 250W
PoorOver: JONES CREEK
00.70 S of CR 250 N, Putnam, IN
Built 1925 Load: 2.7 t ADT: 180
CR 675W
Structurally DeficientOver: BRANCH OF LEATHERMAN CR
00.20 S of CR 125 N, Putnam, IN
Built 1930 Load: 2.7 t ADT: 130
CR 275S
Structurally DeficientOver: CONRAIL RR
00.50 E of CR 600 W, Putnam, IN
Built 1910 Load: 2.7 t ADT: 130
SHAPED CHARGE ROAD
PoorOver: LITTLE OTTER CREEK
1.2 MILES NORTH OF K RD, Ripley, IN
Built 1899 Load: 2.7 t ADT: 2
WONJU ROAD
PoorOver: TRIBUTARY OF BIG CREEK
0.3 MILE NORTH OF G ROAD, Ripley, IN
Built 1990 Load: 2.7 t ADT: 10
All Bridges in Indiana
I-65 SB
UnknownOver: KNIGHT ROAD / CR 500 N
04.01 S SR-10, Jasper, IN
Built 1966 ADT: 132
US 421
UnknownOver: FRONT STREET----MADISN I
00.42 S of SR 56, Jefferson, IN
Built 2014 ADT: 400
SR-144
UnknownOver: SR 37 NBL
12.69 N SR-44, Johnson, IN
Built 2022 ADT: 12,320
CR 400S
UnknownOver: I-65 SB
04.43 N SR 252, Johnson, IN
Built 1969 ADT: 27,789
CR 250S
UnknownOver: I-65 SB
03.13 S SR 44, Johnson, IN
Built 1970 ADT: 27,789
GREENSBURG ROAD
UnknownOver: I-65 SB
02.15 S SR 44, Johnson, IN
Built 1970 ADT: 27,789
I-65 NB
UnknownOver: SR 44 WB
09.48 N SR 252, Johnson, IN
Built 1970 ADT: 7,554
I-65 SB
UnknownOver: SR 44 WB
09.48 N SR 252, Johnson, IN
Built 1970 ADT: 7,554
CR 100N
UnknownOver: I-65 SBL
00.92 N SR-44, Johnson, IN
Built 1971 ADT: 31,581
CR 300N
UnknownOver: I-65 SB
02.67 N SR 44, Johnson, IN
Built 1971 ADT: 31,581
CR 350E, CR 400N
UnknownOver: I-65 SB
03.81 N SR 44, Johnson, IN
Built 1971 ADT: 31,581
CR 500N
UnknownOver: I-65 SB
04.87 N SR 44, Johnson, IN
Built 1971 ADT: 25,271
CR 600N
UnknownOver: I-65 SB
06.02 N SR 44, Johnson, IN
Built 1971 ADT: 32,446
CR 750N
UnknownOver: I-65 SBL
07.68 N SR 44, Johnson, IN
Built 2015 ADT: 32,525
US 41 NB
UnknownOver: SR-441SB (OLD DECKER R)
03.05 S US 50, Knox, IN
Built 1967 ADT: 6,060
US 41 SB
UnknownOver: SR-441 SB (OLD DECKER R)
03.05 S US 50, Knox, IN
Built 1967 ADT: 6,060
US 41 NB
UnknownOver: MAIN STREET ROAD
01.16 N SR 441, Knox, IN
Built 1967 ADT: 118
US 41 SB
UnknownOver: MAIN STREET ROAD
01.16 N SR 441, Knox, IN
Built 1967 ADT: 118
HART STREET
UnknownOver: US 41 SB
01.38 N SR 441, Knox, IN
Built 1967 ADT: 10,422
US 41 NB (MIDDLE)
UnknownOver: US 50 WB RAMP
01.20 S US 50, Knox, IN
Built 1967 ADT: 11,254
US 41 NB
UnknownOver: WASHINGTON AVENUE
00.44 S US 50, Knox, IN
Built 1961 ADT: 60
US 41 SB
UnknownOver: WASHINGTON AVENUE
00.44 S US 50, Knox, IN
Built 1961 ADT: 60
HILLCREST RD
UnknownOver: US 41 SB
00.72 N US 50, Knox, IN
Built 1963 ADT: 9,180
US 50 EB
UnknownOver: Ill SR-33
01.85 W US 41, Knox, IN
Built 1960 ADT: 115
US 50 WB
UnknownOver: ILL SR-33
01.85 W US 41, Knox, IN
Built 1960 ADT: 115
US 50 EB
UnknownOver: FT KNOX ROAD
01.24 W US 41, Knox, IN
Built 1961 ADT: 132
US 50 WB
UnknownOver: FT KNOX ROAD
01.24 W US 41, Knox, IN
Built 1961 ADT: 132
OLD SR 67
UnknownOver: US-50 WBL
00.59 W US 41, Knox, IN
Built 1961 ADT: 7,594
HILLCREST RD
UnknownOver: US 50 WB RAMP
00.13 W US 41, Knox, IN
Built 1961 ADT: 1,500
US 50 EB
UnknownOver: 6TH STREET NBL
01.20 W US 41, Knox, IN
Built 1961 ADT: 10,580
US 50 WB
UnknownOver: 6TH STREET NBL
01.20 W US 41, Knox, IN
Built 1961 ADT: 10,580
US 50 EB (TOP)
UnknownOver: US-41 NBL (MIDDLE)
01.20 E US 41, Knox, IN
Built 1967 ADT: 11,254
OLD SR 61
UnknownOver: US-41 SBL
02.07 S US 50, Knox, IN
Built 1967 ADT: 11,253
SR 67 & US 41 RAMP
UnknownOver: US 41 NB
05.06 S SR 550, Knox, IN
Built 1963 ADT: 3,538
SR 441
UnknownOver: LOCAL RD-ILLINOIS
02.43 N US 41, Knox, IN
Built 1931 ADT: 118
HAZELTON ROAD
UnknownOver: WHITE RIVER/LOCAL ROAD
00.22 N OF SR 56 / SOUTH, Knox, IN
Built 1945 ADT: 200
US 30 EB
UnknownOver: SR 15 SB
09.12 W SR-13, Kosciusko, IN
Built 1972 ADT: 12,118
US 30 WB
UnknownOver: SR 15 NB
09.12 W SR 13, Kosciusko, IN
Built 1972 ADT: 10,350
IN NORTHEASTERN RR
UnknownOver: SR 3
05.62 N US 6, LaGrange, IN
Built 1993 ADT: 3,835
CR 1200W/CO LN RD
UnknownOver: I-90 EB
01.08 E SR 13, LaGrange, IN
Built 1956 ADT: 12,464
CR 4/1150W
UnknownOver: I-90 WB
01.59 E SR 13, LaGrange, IN
Built 1956 ADT: 11,575
CR 1000W
UnknownOver: I-90 WB
03.11 E SR 13, LaGrange, IN
Built 1956 ADT: 11,575
CR 900W/SNYDER RD
UnknownOver: I-90 WB
04.12 E SR 13, LaGrange, IN
Built 1956 ADT: 11,575
CR 800W/FERGUSON
UnknownOver: I-90 WB
05.10 E SR 13, LaGrange, IN
Built 1956 ADT: 11,575
I-90 WB
UnknownOver: CR 675W
06.12 E SR 13, LaGrange, IN
Built 1956 ADT: 12,464
CR 600W/OLNEY RD
UnknownOver: I-90 WB
06.12 W SR 9, LaGrange, IN
Built 1956 ADT: 11,575
I-90 WB
UnknownOver: CR 450W/CRAMPTON
04.65 W SR 9, LaGrange, IN
Built 1956 ADT: 12,464
CR 375W/BERGER RD
UnknownOver: I-90 WB
03.89 W SR 9, LaGrange, IN
Built 1956 ADT: 11,010
CR 300W
UnknownOver: I-90 WB
03.11 W SR 9, LaGrange, IN
Built 1956 ADT: 11,010
I-90 RAMP TO SR 9
UnknownOver: I-90 EBL
00.34 W SR 9, LaGrange, IN
Built 1956 ADT: 24,466
Showing 751-800 of 18,630 bridges
Data sourced from the FHWA National Bridge Inventory (NBI), latest released cycle. See our methodology for details. Retrieved and formatted by PlainBridges Editorial.
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). A "structurally deficient" rating is a repair-priority signal, not a closure or unsafe-to-cross designation. Consult a qualified civil engineer before making decisions based on this data.
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.
| Publisher | Kiznis Studio |
| Sources | FHWA National Bridge Inventory, public U.S. government datasets |