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
US 12 EB/SR 912
UnknownOver: US 12/20 EBL
00.47 E I-90, Lake, IN
Built 1960 ADT: 8,870
169TH ST/15TH AVE
UnknownOver: SR-912 WBL
01.06 E US-20, Lake, IN
Built 1966 ADT: 44,400
SR 912
UnknownOver: 25TH AVE/177TH STST
00.18 W I-80, Lake, IN
Built 1960 ADT: 1,080
25TH AVE/177TH ST
UnknownOver: SR 912 EB RMP TO I-80
00.18 W I-80, Lake, IN
Built 1997 ADT: 1,080
25TH AVE/177TH ST
UnknownOver: I-80 W-SR 912W RAMP
00.18 W I-80, Lake, IN
Built 1997 ADT: 2,628
SR 912 EB TO I-80
UnknownOver: I-80/94 WBL MAINLINE
00.02 W I-80, Lake, IN
Built 2000 ADT: 83,080
SR 912 WB TO I-80
UnknownOver: I-80 WB TO SR 912 SB RMP
00.03 W I-80, Lake, IN
Built 2000 ADT: 4,500
217TH AVENUE
UnknownOver: I-65 SBL
04.54 S SR 2, Lake, IN
Built 1966 ADT: 14,075
CR X-9/205TH AVE
UnknownOver: I65 SBL
03.02 S SR 2, Lake, IN
Built 1964 ADT: 14,075
SR 2
UnknownOver: I-65 NB
07.37 S US 231 N JCT, Lake, IN
Built 1964 ADT: 7,770
SR 2
UnknownOver: I-65 SB
07.37 S US 231 N JCT, Lake, IN
Built 1964 ADT: 7,651
CR H-10/153RD AVE
UnknownOver: I-65 SBL
03.58 N SR-2, Lake, IN
Built 1964 ADT: 17,850
CR H-4/137TH AVE
UnknownOver: I-65 SB
01.73 S US 231, Lake, IN
Built 1964 ADT: 17,850
I-65 NB
UnknownOver: US-231 SBL
05.38 S US-30, Lake, IN
Built 1964 ADT: 5,530
I-65 SB
UnknownOver: US-231 SBL
05.38 S US-30, Lake, IN
Built 1964 ADT: 5,530
113TH AVENUE
UnknownOver: I-65 SBL
01.36 N US-231, Lake, IN
Built 1965 ADT: 22,250
I-65 NB
UnknownOver: 109TH AVENUE
01.86 N US 231, Lake, IN
Built 1965 ADT: 8,847
109th Avenue
UnknownOver: I-65 SB
01.86 N US 231, Lake, IN
Built 1965 ADT: 8,847
E 101ST AVE
UnknownOver: I-65 SB
02.50 S US 30, Lake, IN
Built 2021 ADT: 27,450
93RD AVENUE
UnknownOver: I-65 SBL
01.70 S US-30, Lake, IN
Built 2000 ADT: 27,450
I-65 NB
UnknownOver: US-30 WBL CD/RAMP
05.38 N US-231, Lake, IN
Built 1966 ADT: 3,000
I-65 SB
UnknownOver: US-30 EBL
05.38 N US-231, Lake, IN
Built 1966 ADT: 30,220
73RD AVENUE
UnknownOver: I-65 SB
00.94 N US 30, Lake, IN
Built 1965 ADT: 49,305
61ST AVENUE
UnknownOver: I-65 SBL
02.51 N US-30, Lake, IN
Built 2000 ADT: 51,000
I-65 NB
UnknownOver: 53RD AVENUE
03.53 N US-30, Lake, IN
Built 1965 ADT: 4,111
I-65 SB
UnknownOver: 53RD AVENUE
03.53 N US-30, Lake, IN
Built 1965 ADT: 4,111
49TH AVENUE
UnknownOver: I-65 NB
04.06 N US-30, Lake, IN
Built 1965 ADT: 4,376
49TH AVENUE
UnknownOver: I-65 SB
04.06 N US-30, Lake, IN
Built 1965 ADT: 4,376
39TH AVENUE
UnknownOver: I-65 NB
05.33 N US-30, Lake, IN
Built 1965 ADT: 541
39TH AVENUE
UnknownOver: I-65 SB
05.33 N US-30, Lake, IN
Built 1965 ADT: 541
I-65 NB
UnknownOver: 37TH AVE (OLD US 6) WBL
05.61 N US-30, Lake, IN
Built 2001 ADT: 9,290
I-65 SB
UnknownOver: 37TH AVE (OLD US 6) WBL
05.61 N US-30, Lake, IN
Built 2001 ADT: 9,290
35TH AVENUE
UnknownOver: I-65 NB
05.84 N US-30, Lake, IN
Built 2001 ADT: 541
35TH AVENUE
UnknownOver: I-65 SB
05.84 N US 30, Lake, IN
Built 2001 ADT: 907
I-65 NB
UnknownOver: CENTRAL AVENUE
00.66 N I-80, Lake, IN
Built 1965 ADT: 118
I-65 SB
UnknownOver: CENTRAL AVENUE
00.66 N I-80, Lake, IN
Built 1965 ADT: 118
I-65 NB
UnknownOver: 15th AVENUE
01.53 N I-80, Lake, IN
Built 1965 ADT: 14,443
I-65 SB
UnknownOver: 15th AVENUE
01.53 N I-80, Lake, IN
Built 1965 ADT: 14,443
COLUMBIA AVENUE
UnknownOver: I-80 (I-94) EBL
00.48 E US-41, Lake, IN
Built 1991 ADT: 96,367
I-80 RAMP 2I
UnknownOver: SR 152 NB CD ON-RAMP
00.04 W US 41/SR 152, Lake, IN
Built 1993 ADT: 2,094
SR 152 SB TO I-80
UnknownOver: I-80 EB RAMP
00.15 S I-80/94, Lake, IN
Built 1993 ADT: 16,000
I-80 WB RAMP "I"
UnknownOver: I-80(I-94) WBL-CD-RAMP
00.95 E US-41, Lake, IN
Built 1992 ADT: 3,500
KENNEDY AVENUE
UnknownOver: I-80(I-94) EBL-CD-RAMP
00.97 E US-41, Lake, IN
Built 1992 ADT: 3,500
I-80 WB RAMP "I"
UnknownOver: KENNEDY AVENUE SBL
00.97 E US-41, Lake, IN
Built 1992 ADT: 32,900
SB RAMP TO I-80/I-
UnknownOver: KENNEDY AVENUE SBL
00.97 E US-41, Lake, IN
Built 1992 ADT: 32,900
I-80 WB RAMP TO SR
UnknownOver: SR-912 WBL-CD-RAMP
02.52 E US-41, Lake, IN
Built 2001 ADT: 9,903
I-80 EB/WB
UnknownOver: SR-912 EBL
02.53 E US-41, Lake, IN
Built 2001 ADT: 40,340
I-80 EB TO SR 912
UnknownOver: SR-912 EBL
02.54 E US-41, Lake, IN
Built 2001 ADT: 44,400
COLFAX STREET
UnknownOver: I-80 (I-94) WBL
01.02 E SR-912, Lake, IN
Built 1994 ADT: 96,178
BURR STREET
UnknownOver: I-80 EBL
01.51 E SR-912, Lake, IN
Built 2000 ADT: 96,230
Showing 851-900 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 |