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
MINNESOTA ST
UnknownOver: KEYSTONE AVE NB
00.50 N RAYMOND ST, Marion, IN
Built 1975 ADT: 9,100
KEYSTONE AVENUE SB
UnknownOver: 86TH STREET WB
00.60 S I-465, Marion, IN
Built 1964 ADT: 53,250
KEYSTONE AVENUE SB
UnknownOver: 86TH STREET WBL
00.60 S I-465, Marion, IN
Built 1964 ADT: 53,260
WASHINGTON STREET
UnknownOver: WHITE RIVER PARKWAY-WEST
00.85 W OF MERIDIAN STREE, Marion, IN
Built 1985 ADT: 2,738
ENGLISH AVENUE WB
UnknownOver: SHADELAND AVE
00.75 S WASHINGTON ST, Marion, IN
Built 1961 ADT: 450
SHADELAND AVE NB
UnknownOver: WASHINGTON ST
00.80 W I-465, Marion, IN
Built 1953 ADT: 23,306
MERIDIAN STREET
UnknownOver: RIVERVIEW DRIVE
00.60 N OF KESSLER BLVD, Marion, IN
Built 1926 ADT: 1,200
MORRIS STREET WB
UnknownOver: MADISON AVE
00.25 E MERIDIAN ST, Marion, IN
Built 1955 ADT: 5,450
RAYMOND STREET
UnknownOver: MADISON AVENUE SB
00.25 E MERIDIAN STREET, Marion, IN
Built 1956 ADT: 14,656
SHADELAND AVE SB
UnknownOver: BROOKVILLE RD
00.47 W I-465, Marion, IN
Built 1961 ADT: 27,050
WEIR COOK MEM. DR
UnknownOver: DEPARTURES (WEIR COOK)
01.65 NE OF PERIMETER RD, Marion, IN
Built 2008 ADT: 2,500
WEIR COOK MEM DR
UnknownOver: GTC ACCESS RD
01.95 NE PERIMETER RD, Marion, IN
Built 2008 ADT: 500
AIRPORT ACCESS RD
UnknownOver: WEIR COOK MEM DR
02.00 NE OF PERIMETER RD, Marion, IN
Built 2008 ADT: 25
WEIR COOK MEMORIAL
UnknownOver: PERIMETER RD
00.65 N I-70, Marion, IN
Built 2008 ADT: 10,000
US 6
UnknownOver: SR 331
01.74 W SR 106, Marshall, IN
Built 1980 ADT: 5,420
CSX RR
UnknownOver: SR 106
00.36 E SR 331, Marshall, IN
Built 2003 ADT: 3,388
N&S RR
UnknownOver: SR 17
01.68 S US 30, Marshall, IN
Built 1902 ADT: 7,681
WESTERN AVENUE
UnknownOver: US 30 EB
00.23 W SR-17, Marshall, IN
Built 1964 ADT: 118
WESTERN AVENUE
UnknownOver: US 30 WB
00.23 W SR-17, Marshall, IN
Built 1964 ADT: 118
US 30 EB
UnknownOver: SR-17
02.19 W of SR-31, Marshall, IN
Built 1964 ADT: 11,837
US 30 WB
UnknownOver: SR-17
02.19 W US-31, Marshall, IN
Built 1964 ADT: 11,837
US 31 NB
UnknownOver: LINCOLN HIGHWAY
01.19 S US-30, Marshall, IN
Built 1960 ADT: 3,427
US 31 SB
UnknownOver: 10 TH ROAD
01.19 S US-30, Marshall, IN
Built 1960 ADT: 500
US 31 NB
UnknownOver: US-30 WBL
07.83 N SR-10, Marshall, IN
Built 1960 ADT: 5,947
US 31 SB
UnknownOver: US-30 EBL
07.83 N SR-10, Marshall, IN
Built 1960 ADT: 6,318
SR 331
UnknownOver: US 30 WB
03.65 N SR-10, Marshall, IN
Built 1976 ADT: 7,597
PLYM/GOSHEN TRAIL
UnknownOver: US-31 SBL
01.32 N US 30, Marshall, IN
Built 2009 ADT: 7,500
W 6TH RD
UnknownOver: US-31 NBL
03.07 N US-30, Marshall, IN
Built 2009 ADT: 6,270
US 31 NB
UnknownOver: TYLER RD
01.90 N US 6, Marshall, IN
Built 2009 ADT: 8,307
E 1ST ROAD
UnknownOver: US 31 NB
01.90 N US 6, Marshall, IN
Built 2014 ADT: 146
E 1ST RD
UnknownOver: US 31 SB
01.90 N US 6, Marshall, IN
Built 2014 ADT: 146
WEST 3A ROAD
UnknownOver: US 31 NB
1.30 S US6, Marshall, IN
Built 2014 ADT: 89
WEST 3A ROAD
UnknownOver: US 31 SB
1.30 S US 6, Marshall, IN
Built 2014 ADT: 89
US 6 WB
UnknownOver: US 31 NB
0.92 E US-6 and Old US-31, Marshall, IN
Built 2014 ADT: 4,702
US-31 SBL
UnknownOver: US-6 WBL
0.92 E US-6 and old US-31, Marshall, IN
Built 2014 ADT: 4,702
KENILWORTH ROAD
UnknownOver: US 31 NB
9.25 mi. S. US 20, Marshall, IN
Built 2014 ADT: 9,620
CR WEST 4A
UnknownOver: US 31 SBL
02.51 S US 6, Marshall, IN
Built 2013 ADT: 9,748
7TH ROAD
UnknownOver: US 31 SB
01.14 S US 6, Marshall, IN
Built 2015 ADT: 15,000
US 24 EB
UnknownOver: US 31 SB
03.79 W SR 19, Miami, IN
Built 2000 ADT: 8,558
US 24 EB
UnknownOver: DENVER PIKE
00.61 W SR-19, Miami, IN
Built 1975 ADT: 283
US 24 WB
UnknownOver: DENVER PIKE
00.61 W SR-19, Miami, IN
Built 1975 ADT: 283
ABANDONED RR
UnknownOver: US 31 SB
00.47 S SR 218, Miami, IN
Built 1969 ADT: 11,958
US 31 NB
UnknownOver: Old Stone Road
00.15 S US 24, Miami, IN
Built 1963 ADT: 132
US 31 SB
UnknownOver: Old Stone Road
00.15 S US 24, Miami, IN
Built 1963 ADT: 132
US 31 NB
UnknownOver: OLD US 24, NS RR
01.47 S US 24, Miami, IN
Built 1963 ADT: 3,400
US 31 SB
UnknownOver: OLD US 24, NS RR
01.47 S US-24, Miami, IN
Built 1963 ADT: 2,961
SR 37 NBL
UnknownOver: COUNTY ROAD WBL
07.81 N SR-54, Monroe, IN
Built 1972 ADT: 1,096
SR 37 SB
UnknownOver: COUNTY ROAD EBL
07.81 N SR-54, Monroe, IN
Built 1972 ADT: 1,096
INDIANA RR CO
UnknownOver: I-69 SB
00.25 S SR 48, Monroe, IN
Built 1972 ADT: 22,862
SB WALNUT ST, OLD4
UnknownOver: I-69 SBL
00.07 N SR-46, Monroe, IN
Built 1972 ADT: 10,352
Showing 1,401-1,450 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 |