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-90 EB
UnknownOver: RANGE & ROSS RD
01.74 W US 20, LaPorte, IN
Built 1956 ADT: 248
I-90 WB
UnknownOver: RANGE & ROSS RD
01.74 W US 20, LaPorte, IN
Built 1956 ADT: 248
FAIL ROAD
UnknownOver: I-90 WB
03.18 E SR 39, LaPorte, IN
Built 1956 ADT: 12,615
ST JOHNS ROAD
UnknownOver: I-90 WB
04.47 E SR 39, LaPorte, IN
Built 1956 ADT: 13,580
BOWELL RD/CR 300E
UnknownOver: I-90 WB
05.68 E SR 39, LaPorte, IN
Built 1956 ADT: 13,580
CR 425E/TEETER RD
UnknownOver: I-90 EB
07.41 E SR 39, LaPorte, IN
Built 1956 ADT: 13,580
CR 500E/NOVITIATE
UnknownOver: I-90 EB
08.60 E SR 39, LaPorte, IN
Built 1956 ADT: 13,580
I-90 EB
UnknownOver: HUNTS RD
09.66 E SR 39, LaPorte, IN
Built 1956 ADT: 143
I-90 WB
UnknownOver: HUNTS ROAD
09.66 E SR 39, LaPorte, IN
Built 1956 ADT: 143
EMERY ROAD
UnknownOver: I-90 WB
10.77 E SR 39, LaPorte, IN
Built 1956 ADT: 14,500
WALKER ROAD
UnknownOver: I-90 EB/WB
12.40 E SR 39, LaPorte, IN
Built 1956 ADT: 13,580
I-90 EB
UnknownOver: CR 900E
12.93 E SR 39, LaPorte, IN
Built 1956 ADT: 293
I-90 WB
UnknownOver: CR 900E
12.93 E SR 39, LaPorte, IN
Built 1956 ADT: 293
CR 400N
UnknownOver: I-94 WBL
01.76 E US-421, LaPorte, IN
Built 1971 ADT: 27,527
JOHNSON ROAD
UnknownOver: I-94 WBL
02.93 E US-421, LaPorte, IN
Built 1971 ADT: 16,900
BLECK ROAD
UnknownOver: I-94 WBL
03.77 E US-421, LaPorte, IN
Built 1971 ADT: 27,527
CR 600W
UnknownOver: I-94 WBL
00.72 W US-20, LaPorte, IN
Built 1971 ADT: 16,910
I-94 EB
UnknownOver: US-20 / US-35 WBL
05.37 E US-421, LaPorte, IN
Built 1969 ADT: 11,969
I-94 WB
UnknownOver: US-20 / US-35 EBL
05.37 E US 421, LaPorte, IN
Built 1969 ADT: 13,570
WARNKE ROAD
UnknownOver: I-94 WBL
00.87 E US-20, LaPorte, IN
Built 1969 ADT: 19,295
CR 800N
UnknownOver: I-94 WBL
02.05 E US-20, LaPorte, IN
Built 1969 ADT: 15,275
CR 900N
UnknownOver: I-94 WBL
03.45 E US-20, LaPorte, IN
Built 1969 ADT: 15,275
CR 1000N
UnknownOver: I-94 WBL
04.90 E US 20, LaPorte, IN
Built 1969 ADT: 23,747
US 50 EB
UnknownOver: OLD US-50 WBL
01.70 E SR 37, Lawrence, IN
Built 1973 ADT: 7,550
SOO LINE RR
UnknownOver: SR 58
02.15 E SR 37, Lawrence, IN
Built 1976 ADT: 7,519
S00 RR
UnknownOver: SR 450
08.30 W SR 158, Lawrence, IN
Built 1936 ADT: 929
SR 38
UnknownOver: I-69 NB
03.97 E SR 13, Madison, IN
Built 1962 ADT: 29,165
SR 9/SR 67
UnknownOver: I-69 NB
02.65 N US 36, Madison, IN
Built 1962 ADT: 20,733
SR 236
UnknownOver: I-69 NB
03.16 E SR 9, Madison, IN
Built 1963 ADT: 22,258
I-69 NB
UnknownOver: SR 13
04.25 S SR 38, Madison, IN
Built 1966 ADT: 5,382
I-69 SB
UnknownOver: SR 13
04.25 S SR-38, Madison, IN
Built 1966 ADT: 4,400
CR 650W
UnknownOver: I69 SBL
02.51 N of SR 13, Madison, IN
Built 1966 ADT: 25,210
OLD SR 132
UnknownOver: I-69 SBL
00.93 N SR 38, Madison, IN
Built 1963 ADT: 25,990
CR 400W
UnknownOver: I-69 SBL
02.19 N SR 38, Madison, IN
Built 2020 ADT: 26,745
BROWN ST RD/CR 100
UnknownOver: I-69 SB
01.67 N SR 67, Madison, IN
Built 1962 ADT: 56,317
MAIN STREET
UnknownOver: I-69 SBL
01.33 S SR 9, Madison, IN
Built 1962 ADT: 56,317
I-69 NB
UnknownOver: OLD SR 109/COLUMBUS AV
00.60 S SR 9, Madison, IN
Built 1963 ADT: 6,120
I-69 SB
UnknownOver: OLD SR 109/COLUMBUS AV
00.60 S SR 9, Madison, IN
Built 1963 ADT: 6,120
I-69 NB
UnknownOver: NB SR 9
03.35 S SR 236, Madison, IN
Built 1963 ADT: 8,660
I-69 SB
UnknownOver: SB SR 9
03.35 S SR 236, Madison, IN
Built 1963 ADT: 8,660
CR 200E
UnknownOver: I-69 SBL
01.03 N SR 9, Madison, IN
Built 1963 ADT: 21,370
CR 300E
UnknownOver: I-69 SBL
02.04 N SR 9, Madison, IN
Built 1963 ADT: 21,370
CR 200S
UnknownOver: I-69 SBL
02.70 S SR 67, Madison, IN
Built 1962 ADT: 22,624
US 31
UnknownOver: I-465 WB
00.22 N SR 135, Marion, IN
Built 1962 ADT: 53,294
CSX RR
UnknownOver: US 36 EB
01.88 W I-465, Marion, IN
Built 1976 ADT: 20,140
CSV RR
UnknownOver: US 40
01.84 W I-465, Marion, IN
Built 2005 ADT: 31,290
CSX RR
UnknownOver: US 136
01.52 W SR 134, Marion, IN
Built 2003 ADT: 18,440
HUNTER ROAD
UnknownOver: US 421X NBL
00.26 N I-465, Marion, IN
Built 1959 ADT: 7,665
COUNTY LINE RD
UnknownOver: I-65 SBL
05.20 S I-465, Marion, IN
Built 1971 ADT: 46,055
STOP 11 ROAD
UnknownOver: I65 SBL
04.18 S I-465, Marion, IN
Built 1971 ADT: 46,000
Showing 1,051-1,100 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 |