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
SR 46
UnknownOver: I-65
04.57 N SR 58, Bartholomew, IN
Built 1996 ADT: 12,550
CR 100N
UnknownOver: I-65 SB
00.99 N SR 46, Bartholomew, IN
Built 1961 ADT: 20,188
CR 300N/LOWELL RD
UnknownOver: I-65 NB
03.05 N SR 46, Bartholomew, IN
Built 1961 ADT: 21,514
CR 500N
UnknownOver: I-65 SB
02.38 S US 31, Bartholomew, IN
Built 1961 ADT: 20,188
CR 650N/TANNEHILL
UnknownOver: I-65 SB
00.72 S US 31, Bartholomew, IN
Built 1961 ADT: 20,188
I-65 NB
UnknownOver: US 31 SB
04.32 S SR 252, Bartholomew, IN
Built 1961 ADT: 6,515
I-65 SB
UnknownOver: US 31 SB
04.32 S SR 252, Bartholomew, IN
Built 1961 ADT: 6,515
CR 800N
UnknownOver: I-65 SB
01.18 N US 31, Bartholomew, IN
Built 1968 ADT: 24,234
COUNTY LINE RD
UnknownOver: I-65 SB
01.00 S SR 252, Bartholomew, IN
Built 1968 ADT: 24,234
US 41 NB
UnknownOver: US 52 EBL
02.45 N SR 18, Benton, IN
Built 1966 ADT: 890
US 41 SB
UnknownOver: US 52 EBL
02.45 N SR 18, Benton, IN
Built 1966 ADT: 890
SR 32
UnknownOver: I-65 NBL
01.06 W SR-39, Boone, IN
Built 2006 ADT: 23,410
CSX RR
UnknownOver: SR 32
00.50 E I-65, Boone, IN
Built 1992 ADT: 12,200
SR 39
UnknownOver: I-65 NBL
00.90 S SR 32, Boone, IN
Built 2012 ADT: 30,985
SR 47
UnknownOver: I-65 NB
01.84 S SR 39, Boone, IN
Built 1970 ADT: 22,997
SR 75
UnknownOver: I-74 EB
01.36 N SR 234, Boone, IN
Built 1963 ADT: 8,490
WHITESTOWN PKWY
UnknownOver: I-65 NB
06.22 W US 421, Boone, IN
Built 1958 ADT: 39,637
I-65 NB
UnknownOver: LAFAYETTE ROAD SBL
00.48 S I-865, Boone, IN
Built 1959 ADT: 2,775
I-65 SB
UnknownOver: LAFAYETTE ROAD SBL
00.48 S I-865, Boone, IN
Built 1959 ADT: 2,775
CR 100E/HALL-BAKER
UnknownOver: I-65 NBL
01.17 S SR 39, Boone, IN
Built 1958 ADT: 30,975
CSX RR
UnknownOver: I-65 NB
00.55 N SR 39, Boone, IN
Built 2013
US 52 WB
UnknownOver: I-65 SB
01.89 N SR 32, Boone, IN
Built 1970 ADT: 22,997
206TH ST/ CR 300 N
UnknownOver: I-65 SB
00.73 N US 52, Boone, IN
Built 1970 ADT: 22,997
246TH ST/ CR 700 N
UnknownOver: I-65 SBL
01.11 N SR 47, Boone, IN
Built 1970 ADT: 20,255
261ST ST/CR 850N
UnknownOver: I-65 NB
02.91 N SR 47, Boone, IN
Built 1969 ADT: 21,686
271ST ST/CO LN RD
UnknownOver: I-65 NB
04.08 N SR 47, Boone, IN
Built 1970 ADT: 21,686
CR 1100W
UnknownOver: I-74 WB
04.02 W SR 75, Boone, IN
Built 1964 ADT: 8,150
CR 500S
UnknownOver: I-74 WBL
02.44 W SR 75, Boone, IN
Built 1964 ADT: 7,420
CR 700S
UnknownOver: I-74 WBL
00.89 E SR 75, Boone, IN
Built 1963 ADT: 10,519
CR 800S/CO LINE RD
UnknownOver: I-74 WB
02.32 E SR 75, Boone, IN
Built 1963 ADT: 9,950
I65 NB to I865 WB
UnknownOver: I-865 EB
01.97 W US 421, Boone, IN
Built 1967 ADT: 11,495
I-465 WB TO I-465
UnknownOver: I-865 EBL
02.19 W US 421, Boone, IN
Built 1967 ADT: 13,939
I-65 SB TO I-865 E
UnknownOver: I65 SB
00.54 E I-65, Boone, IN
Built 1971 ADT: 26,336
KISSEL ROAD
UnknownOver: I-865 WB
01.50 E I-65, Boone, IN
Built 1971 ADT: 16,104
COOPER ROAD
UnknownOver: I-865 EB
02.25 E I-65, Boone, IN
Built 1971 ADT: 13,744
FORD ROAD
UnknownOver: I-865 WB
03.77 E I-65, Boone, IN
Built 1971 ADT: 13,205
SR 267
UnknownOver: I-65 NBL
08.59 N I-74, Boone, IN
Built 2010 ADT: 30,000
NORTH STREET
UnknownOver: US-421
00.33 S SR-25, Carroll, IN
Built 1935 ADT: 6,616
SR 25
UnknownOver: US-421
03.58 S SR 218, Carroll, IN
Built 2013 ADT: 6,000
SR 25
UnknownOver: US-421
03.58 S SR 218, Carroll, IN
Built 2013 ADT: 6,000
CR 200N
UnknownOver: SR-25 SBL
00.92 N US 421, Carroll, IN
Built 2013 ADT: 4,700
SR 25
UnknownOver: CR-300 NORTH
02.51 N US 421, Carroll, IN
Built 2013 ADT: 480
CR 300N
UnknownOver: SR 25 SB
02.51 N US 421, Carroll, IN
Built 2013 ADT: 480
CR 500W
UnknownOver: SR-25 NBL
01.43 N SR 218, Carroll, IN
Built 2012 ADT: 4,700
WALNUT STREET
UnknownOver: SR 25 NB
04.29 N SR 218, Carroll, IN
Built 2013 ADT: 6,200
CR 75W
UnknownOver: SR 25 SB
06.81 N SR 218, Carroll, IN
Built 2013 ADT: 3,100
US 25 NB
UnknownOver: CR 500S
05.97 S SR 29, Carroll, IN
Built 2012 ADT: 1,600
US 24 EB
UnknownOver: COLE LANE
04.91 E US 35, Cass, IN
Built 1994 ADT: 114
US 24 WB
UnknownOver: COLE LANE
04.91 E US 35, Cass, IN
Built 1994 ADT: 114
N&S RR
UnknownOver: N MAIN ST/SR 25
02.00 N US 24, Cass, IN
Built 1934 ADT: 12,600
Showing 101-150 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 |