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-80/94 EB CD RAMP
UnknownOver: I-65
07.00 N US 30, Lake, IN
Built 2009 ADT: 12,000
I-65 SB RAMP
UnknownOver: I-80 EBL COLLECT-DISTRIB
07.00 N US 30, Lake, IN
Built 2009 ADT: 12,000
I-65 SB RAMP WSDIR
UnknownOver: I-80/94 WB RAMP SW
06.91 N US 30, Lake, IN
Built 2009 ADT: 3,300
I-65
UnknownOver: I80 WBL TO I65 SBL RAMP
07.10 N US 30, Lake, IN
Built 2009 ADT: 11,999
NORTHCOTE AVE
UnknownOver: I-80/94 EB
00.29 W US 41, Lake, IN
Built 2005 ADT: 1,975
NORTHCOTE AVE
UnknownOver: I-80/94 WB
00.29 W US 41, Lake, IN
Built 2005 ADT: 3,762
US 41 SB Ramp 2I
UnknownOver: I-80/94 EB
02.53 W SR 912, Lake, IN
Built 2005 ADT: 6,000
I-80/94 WB
UnknownOver: US 41 SB/SR 152 WB
02.53 W SR 912, Lake, IN
Built 2005 ADT: 21,425
GEORGIA STREET
UnknownOver: I-80 WB
00.50 E SR 53, Lake, IN
Built 2003 ADT: 80,363
CHASE STREET
UnknownOver: I-80/94 EB
02.03 W SR 53, Lake, IN
Built 2003 ADT: 88,412
Dock Street
UnknownOver: DOCK STREET
01.66 E OF W JCT US-12, Lake, IN
Built 2020 ADT: 7,750
RIDGE ROAD
UnknownOver: KENNEDY AVENUE
00.50 E US 41, Lake, IN
Built 1936 ADT: 13,833
COLUMBIA AVE
UnknownOver: INDIANA STREET
00.10 S MICHIGAN ST, Lake, IN
Built 1963 ADT: 10
COUNTY LINE RD
UnknownOver: NATIONAL PARK ROAD
00.30 N US 12, Lake, IN
Built 1992 ADT: 2,251
HOHMAN AVENUE
UnknownOver: WILLOW CT
00.10 N SIBLEY BLVD, Lake, IN
Built 1996 ADT: 1,226
CASINO CENTER DR
UnknownOver: HAMMOND MARINA DR
00.10 N BRIDGE 367, Lake, IN
Built 1996 ADT: 500
BUFFINGTON HRBR DR
UnknownOver: ACCESS ROAD
00.70 E. of SR 912, Lake, IN
Built 2007 ADT: 20
ACCESS ROAD RAMP
UnknownOver: ACCESS ROAD
00.70 E. of SR 912, Lake, IN
Built 2005 ADT: 200
TRACY RD
UnknownOver: US 6
01.96 E US 35, LaPorte, IN
Built 2014 ADT: 6,810
GRAVEL RD (EAST)
UnknownOver: US 12
00.21 E US 35, LaPorte, IN
Built 1991 ADT: 100
US 20
UnknownOver: I-90 EBL
03.60 E SR-39, LaPorte, IN
Built 1956 ADT: 13,360
US 20 EB / SR 2 WB
UnknownOver: US 20 EBL to SR 2 EBL
07.82 E SR 39, LaPorte, IN
Built 2020 ADT: 4,650
US 35 NB
UnknownOver: RAILROAD STREET
00.42 N US-6, LaPorte, IN
Built 1941 ADT: 206
US 35 SB
UnknownOver: RAILROAD STREET
00.42 N US-6, LaPorte, IN
Built 1951 ADT: 118
US 35
UnknownOver: PARKING LOT SERVICE ROAD
00.19 N SR-2, LaPorte, IN
Built 1977 ADT: 200
N&S RR
UnknownOver: SR 39
00.87 N US 35, LaPorte, IN
Built 1953 ADT: 10,092
NICTD RR
UnknownOver: SR 39
02.31 N US 20, LaPorte, IN
Built 1962 ADT: 5,525
SR 212 EB, US20 WB
UnknownOver: US 20/35 EB/WB
00.13 W US 20, LaPorte, IN
Built 1986 ADT: 17,735
US 421
UnknownOver: ACCESS ROAD
00.37 S US-30, LaPorte, IN
Built 1972 ADT: 10
US 421
UnknownOver: I-90 WBL
02.02 N SR 2, LaPorte, IN
Built 1956 ADT: 12,666
US 421
UnknownOver: N&S RR
02.63 N SR 2, LaPorte, IN
Built 1936 ADT: 11,927
US 421
UnknownOver: I-94 EBL
01.51 S US-20, LaPorte, IN
Built 1972 ADT: 46,509
OTIS ROAD
UnknownOver: I-90 WB
00.56 W US 421, LaPorte, IN
Built 1956 ADT: 13,090
I-90 RAMP/US 421
UnknownOver: I-90 EBL
00.18 W US 421, LaPorte, IN
Built 1956 ADT: 25,230
HOLMSVILLE ROAD
UnknownOver: I-90 EB
00.98 E US 421, LaPorte, IN
Built 1956 ADT: 12,615
JACOB WOZNIAK RD
UnknownOver: I-90 EB
02.76 E US 421, LaPorte, IN
Built 1956 ADT: 12,615
I-90 EB
UnknownOver: CR 700W
03.59 E US 421, LaPorte, IN
Built 1956 ADT: 114
I-90 WB
UnknownOver: CR 700W
03.59 E US 421, LaPorte, IN
Built 1956 ADT: 114
FORRESTER ROAD
UnknownOver: I-90 WB
04.23 W US 35, LaPorte, IN
Built 1956 ADT: 12,615
GOLDRING ROAD
UnknownOver: I-90 WB
03.60 W US 35, LaPorte, IN
Built 1956 ADT: 12,615
I-90 EB
UnknownOver: PINOLA RD
02.45 W US 35, LaPorte, IN
Built 1956 ADT: 3,217
I-90 WB
UnknownOver: PINOLA RD
02.45 W US 35, LaPorte, IN
Built 1956 ADT: 3,217
JOHNSON ROAD
UnknownOver: I-90 WB
01.19 W US 35, LaPorte, IN
Built 1956 ADT: 12,615
I-90 EB
UnknownOver: US 35
01.41 W SR 39, LaPorte, IN
Built 1956 ADT: 9,253
I-90 WB
UnknownOver: US 35
01.41 W SR 39, LaPorte, IN
Built 1956 ADT: 9,253
I-90 EB
UnknownOver: SR 39
01.41 E US 35, LaPorte, IN
Built 1956 ADT: 7,061
I-90 WB
UnknownOver: SR 39
01.41 E US 35, LaPorte, IN
Built 1956 ADT: 7,061
I-90 RAMP/SR 39
UnknownOver: I-90 WBL
00.42 E SR 39, LaPorte, IN
Built 1956 ADT: 26,080
I-90 EB
UnknownOver: CR 100 W
01.13 E SR 39, LaPorte, IN
Built 1956 ADT: 485
I-90 WB
UnknownOver: CR 100W
01.13 E SR 39, LaPorte, IN
Built 1956 ADT: 485
Showing 1,001-1,050 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 |