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
CR 500N
FairOver: KILLBUCK CREEK
00.70 E CR 300 E, Madison, IN
Built 1963 Load: 32.7 t ADT: 214
CR 500E
FairOver: KILLBUCK CREEK
00.50 N CR 650 N, Madison, IN
Built 1971 Load: 32.7 t ADT: 781
CR 400N
FairOver: KILLBUCK CREEK
00.10 E CR 300 E, Madison, IN
Built 1935 Load: 32.7 t ADT: 240
CR 400S
FairOver: SLY FORK FALL CREEK
01.00 E CR 300 E, Madison, IN
Built 1986 Load: 32.7 t ADT: 425
CR 800W
FairOver: BRANCH OF FALL CREEK
01.10 S CR 800 S, Madison, IN
Built 1982 Load: 32.7 t ADT: 214
FALL CREEK DRIVE
FairOver: FOSTER BRANCH CREEK
00.30 NE CR 650 W, Madison, IN
Built 1973 Load: 32.7 t ADT: 504
CR 750W
FairOver: LICK CREEK
00.30 N SR67 / US36, Madison, IN
Built 1935 Load: 32.7 t ADT: 848
CR 1050S
FairOver: LICK CREEK
00.20 W SR 9, Madison, IN
Built 1965 Load: 32.7 t ADT: 715
CR 300W
FairOver: LICK CREEK
00.60 N CR 1100 S, Madison, IN
Built 1960 Load: 32.7 t ADT: 781
MAIN ST
FairOver: FALL CREEK
00.10 N CR 600 S, Madison, IN
Built 1963 Load: 32.7 t ADT: 1,561
CR 250W
FairOver: SPRING BRANCH CREEK
00.10 S US 36, Madison, IN
Built 1930 Load: 32.7 t ADT: 147
CR 575S
FairOver: SLY FORK
00.80 E CR 300 E, Madison, IN
Built 1927 Load: 32.7 t ADT: 319
SOUTH N ST
FairOver: LITTLE DUCK CREEK
00.10 W 24TH ST, Madison, IN
Built 1950 Load: 32.7 t ADT: 504
JACKSON ST
FairOver: WHITE R/KILLBUCK CR
00.10 S GRAND AVE, Madison, IN
Built 1936 Load: 32.7 t ADT: 14,115
CR 1300N
FairOver: BRANCH OF PIPE CREEK
01.00 E CR 200 E, Madison, IN
Built 1970 Load: 32.7 t ADT: 214
W 67TH ST
FairOver: BRANCH SUGAR FORK CR
00.10 W SR 9 / 109, Madison, IN
Built 1987 Load: 32.7 t ADT: 3,955
CR 150N
FairOver: TURKEY CREEK
00.50 W CR 500 E, Madison, IN
Built 1984 Load: 32.7 t ADT: 848
CR 1000N
FairOver: ALEXANDRIA CREEK
00.10 E SR 9, Madison, IN
Built 1984 Load: 32.7 t ADT: 571
NEW COLUMBUS AVE
FairOver: SUGAR RUN
00.20 N CR 600 S, Madison, IN
Built 1964 Load: 32.7 t ADT: 4,255
CR 1300N
FairOver: BRANCH LITTLE DUCK CR
00.30 E CR 700 W, Madison, IN
Built 1990 Load: 32.7 t ADT: 147
CR 200E
FairOver: UNNAMED DITCH
00.10 S CR 1400 N, Madison, IN
Built 2010 Load: 32.7 t ADT: 146
OLD SR 132
FairOver: MUD CREEK
00.20 N CR 400 S, Madison, IN
Built 1980 Load: 32.7 t ADT: 1,139
I-70
FairOver: MARS DITCH
01.08 E I-465, Marion, IN
Built 1994 Load: 32.7 t ADT: 70,949
I-74
FairOver: MILLER DITCH
02.42 E I-465, Marion, IN
Built 2003 Load: 32.7 t ADT: 41,658
I-465
FairOver: LICK CREEK
00.27 S US 40, Marion, IN
Built 1965 Load: 32.7 t ADT: 114,375
I-465
FairOver: CHURCHMAN CREEK
02.04 W I-74, Marion, IN
Built 1999 Load: 32.7 t ADT: 112,178
LAFAYETTE RD
FairOver: TRADER'S HOLLOW
00.21 N OF MOORE RD, Marion, IN
Built 1948 Load: 32.7 t ADT: 10,122
MICHIGAN ROAD
FairOver: PAYNE BRANCH
00.26 N OF 79TH STREET, Marion, IN
Built 1923 Load: 32.7 t ADT: 24,780
SANDI DR
FairOver: HOWARD JOHNSON DITCH
00.30 N OF 79TH ST, Marion, IN
Built 1968 Load: 32.7 t ADT: 2,143
SPRINGMILL RD
FairOver: WILLIAMS CREEK
00.12 N OF 79TH ST, Marion, IN
Built 1930 Load: 32.7 t ADT: 15,943
86TH ST
FairOver: MUD CREEK
00.30 E OF SERGEANT RD, Marion, IN
Built 1959 Load: 32.7 t ADT: 7,224
FOX RD
FairOver: DRY BRANCH
00.35 W OF OAKLANDON RD, Marion, IN
Built 1948 Load: 32.7 t ADT: 24,759
LAFAYETTE ROAD
FairOver: BUSHES RUN
00.05 N 71ST ST, Marion, IN
Built 1995 Load: 32.7 t ADT: 9,528
52ND ST
FairOver: GUION CREEK
00.47 E OF GEORGETOWN RD, Marion, IN
Built 1971 Load: 32.7 t ADT: 1,052
GUION RD
FairOver: GUION CREEK
00.20 N OF 56TH ST, Marion, IN
Built 1965 Load: 32.7 t ADT: 20,472
52ND ST
FairOver: FALCON CREEK
00.35 W I-65, Marion, IN
Built 1999 Load: 32.7 t ADT: 1,052
73RD STREET
FairOver: HOWARD JOHNSON DITCH
00.28 E OF GRANDVIEW DR, Marion, IN
Built 1960 Load: 32.7 t ADT: 22,431
KESSLER BLVD W DR
FairOver: CROOKED CREEK
00.02 W OF MICHIGAN ROAD, Marion, IN
Built 1924 Load: 32.7 t ADT: 18,360
52ND ST
FairOver: INDPLS WATER CO CANAL
00.70 W OF MERIDIAN ST, Marion, IN
Built 1953 Load: 32.7 t ADT: 1,031
COLLEGE AVE
FairOver: INDPLS WATER CO CANAL
00.02 N OF BROADRIPPLE AV, Marion, IN
Built 1947 Load: 32.7 t ADT: 29,590
GUILFORD AVE
FairOver: INDPLS WATER CO CANAL
00.10 N OF BROADRIPPLE AV, Marion, IN
Built 1906 Load: 32.7 t ADT: 3,200
CENTRAL AVE
FairOver: INDPLS WATER CO CANAL
00.35 N OF KESSLER BLVD, Marion, IN
Built 1947 Load: 32.7 t ADT: 5,127
ILLINOIS ST
FairOver: INDPLS WATER CO CANAL
00.10 N OF 56TH ST, Marion, IN
Built 1946 Load: 32.7 t ADT: 17,221
ARLINGTON AVE
FairOver: DEVON CREEK
00.58 S OF 56TH ST, Marion, IN
Built 1974 Load: 32.7 t ADT: 18,022
SHAFTER AVE
FairOver: FALL CREEK
00.05 E OF FALL CREEK RD, Marion, IN
Built 1959 Load: 32.7 t ADT: 4,270
71ST ST
FairOver: FALL CREEK
00.10 E OF FALL CREEK RD, Marion, IN
Built 1970 Load: 32.7 t ADT: 10,498
38TH/GEORGETOWN
FairOver: FALCON CREEK
00.34 S OF LAFAYETTE ROAD, Marion, IN
Built 1961 Load: 32.7 t ADT: 31,916
38TH STREET EB
FairOver: DRY RUN
00.15 E OF HIGH SCHOOL RO, Marion, IN
Built 1967 Load: 32.7 t ADT: 69,876
38TH STREET WB
FairOver: DRY RUN
00.15 E OF HIGH SCHOOL RO, Marion, IN
Built 1961 Load: 32.7 t ADT: 69,876
30TH ST
FairOver: FALCON CREEK
00.40 E OF GEORGETOWN RD, Marion, IN
Built 1960 Load: 32.7 t ADT: 23,311
Showing 6,451-6,500 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.