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-74 WB
UnknownOver: ACTON ROAD
05.53 E I-465, Marion, IN
Built 1958 ADT: 5,313
SHERMAN DRIVE
UnknownOver: I-465 EB
0.17 E I-65, Marion, IN
Built 2014 ADT: 61,255
I465 WB to I65 SB
UnknownOver: I-465 EB
00.17 E I-65, Marion, IN
Built 2014 ADT: 53,313
I-465 EB
UnknownOver: NINTH AVENUE
00.76 E I-65, Marion, IN
Built 1961 ADT: 6,100
I-465 WB
UnknownOver: NINTH AVENUE
00.76 E I-65, Marion, IN
Built 1961 ADT: 6,100
EMERSON AVENUE
UnknownOver: I-465 WB
01.25 E I-65, Marion, IN
Built 2000 ADT: 61,255
I-465 EB
UnknownOver: HANNA AVE
01.69 W I-74, Marion, IN
Built 1962 ADT: 3,978
I-465 WB
UnknownOver: EAST HANNA AVENUE
01.69 W I-74, Marion, IN
Built 1962 ADT: 3,978
SOUTHEASTERN AVE
UnknownOver: I-465 SB
00.46 S I-74, Marion, IN
Built 2000 ADT: 143,272
I465 SB to I74 EB
UnknownOver: US 421X WB
00.04 S I-74, Marion, IN
Built 2001 ADT: 19,110
I74 WB TO I465 SB
UnknownOver: I-465 NB
00.03 N I-74, Marion, IN
Built 2002 ADT: 53,400
RAYMOND STREET
UnknownOver: I-465 NB
00.53 N I-74, Marion, IN
Built 1999 ADT: 51,117
I-74 WB RAMP TO I-
UnknownOver: I-465 NB RAMP
00.78 N I-74, Marion, IN
Built 2001 ADT: 13,214
I-465 NB RAMP
UnknownOver: I-465 NB
00.52 S US 52, Marion, IN
Built 2001 ADT: 144,690
I-465 NB
UnknownOver: US 52 WB
01.50 N I-74, Marion, IN
Built 1965 ADT: 7,670
I-465 SB
UnknownOver: US 52 EB
01.50 N I-74, Marion, IN
Built 1965 ADT: 7,745
ENGLISH AVENUE
UnknownOver: I-465 NB
00.77 N US 52, Marion, IN
Built 1965 ADT: 57,177
I-465 NB
UnknownOver: US 40 WB
01.55 N US 52, Marion, IN
Built 1965 ADT: 17,800
I-465 SB
UnknownOver: US 40 EB
01.55 N US 52, Marion, IN
Built 1965 ADT: 17,800
I-465 NB
UnknownOver: E 10TH ST EB/WB
00.63 N US 40, Marion, IN
Built 1966 ADT: 11,801
I-465 SB
UnknownOver: E 10TH ST EB/WB
00.63 N US 40, Marion, IN
Built 1966 ADT: 11,801
E 16TH STREET
UnknownOver: I-465 SB
01.17 N US 40, Marion, IN
Built 2001 ADT: 133,508
I-70 WB TO I-465 S
UnknownOver: I-465 SB
01.48 N US 40, Marion, IN
Built 1977 ADT: 60,870
I-465 DRE - RAMP
UnknownOver: E 21ST ST EB
00.18 S I-70, Marion, IN
Built 1966 ADT: 6,635
I-465 DRW - RAMP
UnknownOver: E 21ST ST EB
00.18 S I-70, Marion, IN
Built 1966 ADT: 6,964
I-465 NB
UnknownOver: E 21ST ST WB
00.18 S I-70, Marion, IN
Built 1966 ADT: 6,635
I-465 SB
UnknownOver: E 21ST ST WB
00.18 S I-70, Marion, IN
Built 1966 ADT: 6,635
RAMP I-70 EB-I-465
UnknownOver: I-465 NB
00.12 S I-70, Marion, IN
Built 2002 ADT: 133,508
I-465 NB
UnknownOver: I456SB-I70EB RAMP
00.07 S I-70, Marion, IN
Built 2002 ADT: 20,400
I-465 SB
UnknownOver: I465SB-I70EB RAMP
00.07 S I-70, Marion, IN
Built 2002 ADT: 20,400
I-465 NB
UnknownOver: I-70 WB
02.39 S US 36 / SR 67, Marion, IN
Built 1966 ADT: 97,785
I-465 SB
UnknownOver: I-70 WB CD
02.39 S US 36 / SR 67, Marion, IN
Built 1966 ADT: 97,785
I-465 NB
UnknownOver: EAST 30TH STREET
00.89 N I-70, Marion, IN
Built 1965 ADT: 16,177
I-465 SB
UnknownOver: EAST 30TH STREET
00.89 N I-70, Marion, IN
Built 1965 ADT: 16,177
E 38TH STREET EB
UnknownOver: I-465 NB
00.49 S US 36 / SR 67, Marion, IN
Built 2001 ADT: 179,302
E 38TH STREET WB
UnknownOver: I-465 NB
00.48 S US 36 / SR 67, Marion, IN
Built 2001 ADT: 179,302
I-465 NB
UnknownOver: US 36 EB
02.39 N I-70, Marion, IN
Built 1965 ADT: 10,703
I-465 SB
UnknownOver: US 36 EB
02.39 N I-70, Marion, IN
Built 1965 ADT: 10,703
E 46TH STREET
UnknownOver: I-465 SB
00.61 N US 36 / SR 67, Marion, IN
Built 2000 ADT: 214,411
SHADELAND AVE NB
UnknownOver: I-465 SB
01.09 N US 36/SR 67, Marion, IN
Built 2003 ADT: 214,411
E 56TH STREET
UnknownOver: I-465 NB
01.69 N US36/SR67, Marion, IN
Built 2003 ADT: 79,983
SHADELAND AVE NB
UnknownOver: I-465 NB ON RAMP
02.22 N US 36/SR 67, Marion, IN
Built 2003 ADT: 9,000
SHADELAND AVE SB
UnknownOver: I-465 NB RAMPS
02.21 N US 36/SR 67, Marion, IN
Built 2000 ADT: 214,411
I-465 NB
UnknownOver: FALL CREEK RD EB & WB
02.00 S I-69, Marion, IN
Built 1968 ADT: 11,669
I-465 SB
UnknownOver: FALL CREEK ROAD
02.00 S I-69, Marion, IN
Built 1968 ADT: 11,669
I-465 NB
UnknownOver: 71ST ST EB & WB
00.91 S I-69, Marion, IN
Built 1968 ADT: 6,763
I-465 SB
UnknownOver: 71ST ST EB/WB
00.91 S I-69, Marion, IN
Built 1968 ADT: 6,763
I-465 NB
UnknownOver: I69 SB
04.56 N US 36 / SR 67, Marion, IN
Built 1968 ADT: 40,480
I-465 SB
UnknownOver: I69 SB
04.56 N US 36 / SR 67, Marion, IN
Built 1968 ADT: 40,480
RAMP I69SB-I465SB
UnknownOver: NB SR 37X & BINFORD AVE
04.56 N US 36 / SR 67, Marion, IN
Built 1968 ADT: 19,218
Showing 1,251-1,300 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 |