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
Data updated May 2026
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
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.
AR
Arkansas
4.71% top marginal rate
WA
Washington
4.81% top marginal rate
IN
Indiana
4.94% top marginal rate
KS
Kansas
5.25% top marginal rate
WY
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 1
UnknownOver: I-469 WB
08.54 N US 224, Allen, IN
Built 1990 ADT: 11,351
SR 1/DUPONT RD
UnknownOver: I-69 SB
19.45 S SR 8, Allen, IN
Built 1996 ADT: 34,158
SR 3 NB
UnknownOver: I-69 NB
00.00 N I-69, Allen, IN
Built 1960 ADT: 38,193
SR 3 SB
UnknownOver: I-69 SB
00.00 N I-69, Allen, IN
Built 1960 ADT: 38,193
SR 14
UnknownOver: I-69 NB
12.72 E SR 9, Allen, IN
Built 1960 ADT: 26,261
I-69 NB ON-RAMP
UnknownOver: I-469 WB
00.17 E I-69, Allen, IN
Built 1986 ADT: 11,807
NS RR & CFE RR
UnknownOver: US 27 NB (R LANE)
07.14 N I-469, Allen, IN
Built 1914 ADT: 8,707
NS RR (CHICAGO)
UnknownOver: US 27 NB
02.70 S SR 930, Allen, IN
Built 1955 ADT: 23,571
NS RR (CHICAGO)
UnknownOver: US 27 SB
02.68 S SR 930, Allen, IN
Built 1955 ADT: 28,559
NS RR & CFE RR
UnknownOver: US 27 SB
03.43 S SR 930, Allen, IN
Built 1936 ADT: 17,822
US 30/33, SR 930
UnknownOver: I-69
00.63 E US-33, Allen, IN
Built 1961 ADT: 33,680
SR 930
UnknownOver: SR 930 EB, Washington St
05.22 W I-469, Allen, IN
Built 1953 ADT: 16,923
US 33
UnknownOver: US 30 WB
00.63 N US-30, Allen, IN
Built 1961 ADT: 40,056
I-469 EB
UnknownOver: Feighner Rd.
00.54 E I-69, Allen, IN
Built 1988 ADT: 226
I-469 WB
UnknownOver: Feighner Rd.
00.54 E I-69, Allen, IN
Built 1988 ADT: 226
I-469 EB
UnknownOver: Lafayette Center (Tom Wo
00.94 E I-69, Allen, IN
Built 1987 ADT: 570
I-469 WB
UnknownOver: Lafayette Center (Tom Wo
00.94 E I-69, Allen, IN
Built 1987 ADT: 623
INDIANAPOLIS ROAD
UnknownOver: I-469 EB
01.79 E I-69, Allen, IN
Built 1987 ADT: 10,362
COVERDALE ROAD
UnknownOver: I-469 EB
02.91 W SR 1, Allen, IN
Built 1986 ADT: 9,137
THIELE ROAD
UnknownOver: I-469 WB
01.48 E SR 1, Allen, IN
Built 1990 ADT: 10,815
WINCHESTER ROAD
UnknownOver: I-469 WB
02.55 E SR 1, Allen, IN
Built 1990 ADT: 11,376
S Anthony Extended
UnknownOver: I-469 WB
03.79 E SR 1, Allen, IN
Built 1990 ADT: 10,299
I-469 EB
UnknownOver: US 27 NB
04.96 E SR 1, Allen, IN
Built 1990 ADT: 7,468
I-469 WB
UnknownOver: US 27 SB
04.96 E SR 1, Allen, IN
Built 1990 ADT: 7,786
MARION CENTER ROAD
UnknownOver: I-469 WB
01.67 E US 27, Allen, IN
Built 1989 ADT: 10,165
WAYNE TRACE ROAD
UnknownOver: I-469 WB
02.53 E US 27, Allen, IN
Built 1989 ADT: 9,884
I-469 EB
UnknownOver: TILLMAN RD WB
03.62 W US 30, Allen, IN
Built 1989 ADT: 545
MINNICH ROAD NB
UnknownOver: I-469 SB
01.73 W US 30, Allen, IN
Built 1989 ADT: 9,197
I-469 NB
UnknownOver: SR 930 WB
07.76 E US 27, Allen, IN
Built 1990 ADT: 12,912
MINNICH ROAD SB
UnknownOver: I-469 SB
01.72 W US 30, Allen, IN
Built 1989 ADT: 9,197
YODER ROAD
UnknownOver: I-69 SBL
07.75 N US-224, Allen, IN
Built 1963 ADT: 15,600
I69 NB/SB/RAMP
UnknownOver: I-69 NB RAMP
05.69 S US 24, Allen, IN
Built 1986 ADT: 4,269
I-469 EB
UnknownOver: I-69 SB
05.51 S US 24, Allen, IN
Built 1985 ADT: 16,025
I-469 WB
UnknownOver: I-69 SB
05.52 S US 24, Allen, IN
Built 1985 ADT: 16,025
LOW. HUNTINGTON RD
UnknownOver: I69 SB
02.97 S US 24, Allen, IN
Built 1989 ADT: 15,749
YOHNE ROAD
UnknownOver: I-69 SB
01.25 S US 24, Allen, IN
Built 1964 ADT: 20,796
I-69 NB
UnknownOver: US 24 WB
03.21 S SR 14, Allen, IN
Built 1961 ADT: 14,286
I-69 SB
UnknownOver: US 24 WB
03.21 S SR 14, Allen, IN
Built 1961 ADT: 25,327
COVINGTON ROAD
UnknownOver: I-69 SB
01.21 S SR 14, Allen, IN
Built 1961 ADT: 28,557
I-69 NB
UnknownOver: HADLEY ROAD
00.97 S SR-14, Allen, IN
Built 1961 ADT: 10,376
I-69 SB
UnknownOver: HADLEY ROAD
00.97 S SR-14, Allen, IN
Built 1961 ADT: 10,376
BASS ROAD
UnknownOver: I-69 NB
01.08 N SR 14, Allen, IN
Built 1960 ADT: 35,174
ABOITE CENTER ROAD
UnknownOver: I-69 SB
00.77 N US-24, Allen, IN
Built 2005 ADT: 50,542
HILLEGAS ROAD
UnknownOver: I-69 SB
00.48 S US 30, Allen, IN
Built 1960 ADT: 36,901
I-69 NB
UnknownOver: WASHINGTON CENTER ROAD E
00.62 N SR 3, Allen, IN
Built 1992 ADT: 9,404
I-69 SB
UnknownOver: WASHINGTON CENTER ROAD W
00.62 N SR 3, Allen, IN
Built 1992 ADT: 8,611
COLDWATER ROAD SB
UnknownOver: I-69 SB
01.30 N SR-3, Allen, IN
Built 1960 ADT: 35,492
COLDWATER ROAD NB
UnknownOver: I-69 NB
01.36 N SR 3, Allen, IN
Built 1960 ADT: 39,135
COLDWATER ROAD NB
UnknownOver: I-69 SB OFF RAMP
00.00 ADJ I-69, Allen, IN
Built 2022 ADT: 4,887
WALLEN ROAD
UnknownOver: I-69 SB
01.00 S SR 1, Allen, IN
Built 1995 ADT: 30,368
Showing 1-50 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.
Every figure on PlainBridge is rendered directly from federal source data, no number is typed in by an editor. This page draws directly on federal source data, no figure is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error.