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
38TH/ARLINGTON
GoodOver: UNNAMED STREAM
00.42 MI W OF EMERSON AVE, Marion, IN
Built 2023 Load: 32.4 t ADT: 19,365
KINSER PIKE
GoodOver: BEANBLOSSOM CREEK
00.70 N SR 37, Monroe, IN
Built 2017 Load: 32.4 t ADT: 141
NORTH SHORE ROAD
GoodOver: WOLF CREEK
0.45 MI S ANDERSON ROAD, Monroe, IN
Built 2022 Load: 32.4 t ADT: 725
SR 47
GoodOver: WALNUT FORK
00.81 N SR 32, Montgomery, IN
Built 1958 Load: 32.4 t ADT: 6,195
SR 42
GoodOver: LAKE DITCH TRIBUTARY
00.17 E SR 142, Morgan, IN
Built 1992 Load: 32.4 t ADT: 1,581
STUBENVILLE RD
GoodOver: BRANCH OF HAUSER CREEK
00.80 W CR 950 W, Owen, IN
Built 2022 Load: 32.4 t ADT: 280
HAUSER RD
GoodOver: BRANCH OF HAUSER CREEK
00.00 W STUBENVILLE RD, Owen, IN
Built 2022 Load: 32.4 t ADT: 90
US 41
GoodOver: ROCK RUN
03.39 S US 36, Parke, IN
Built 1999 Load: 32.4 t ADT: 4,296
CR 50E
GoodOver: HEINHOLD DITCH
00.50 S 1050 S, Porter, IN
Built 1997 Load: 32.4 t ADT: 1
Lane Rd
GoodOver: Caney Creek
00.21 MI S of HighSchool, Posey, IN
Built 2018 Load: 32.4 t ADT: 141
Broadway Ave
GoodOver: Branch of Bayou Creek
00.02 MI W of COUNTY LINE, Posey, IN
Built 2022 Load: 32.4 t ADT: 296
SR 23
GoodOver: POTATO CREEK
00.46 N SR 4, St. Joseph, IN
Built 1973 Load: 32.4 t ADT: 5,055
US 31 NB
GoodOver: PEAT AREA "B"
03.67 S SR 4, St. Joseph, IN
Built 2010 Load: 32.4 t ADT: 9,516
I-69 SB
GoodOver: GREEN LAKE
00.14 S SR 120, Steuben, IN
Built 1966 Load: 32.4 t ADT: 9,831
SR 54
GoodOver: COULSON DRAIN
01.48 E US 41, Sullivan, IN
Built 2013 Load: 32.4 t ADT: 4,852
SR 26
GoodOver: SOUTH FORK WILDCAT CREEK
02.81 E I-65, Tippecanoe, IN
Built 2018 Load: 32.4 t ADT: 10,718
Poland Hill Rd
GoodOver: Elliott Ditch
00.23 N of CR 350 S, Tippecanoe, IN
Built 1998 Load: 32.4 t ADT: 1,355
CR 650N
GoodOver: Burnett Creek
00.25 E of CR 50 W, Tippecanoe, IN
Built 1960 Load: 32.4 t ADT: 321
KANSAS RD
GoodOver: FIRLICK CREEK
00.20 W OF SR 57, Vanderburgh, IN
Built 2021 Load: 32.4 t ADT: 5,200
SR 63 SB TO US 36
GoodOver: LITTLE RACCOON CREEK
00.05 N US 36, Vermillion, IN
Built 1968 Load: 32.4 t ADT: 529
CR 400E
GoodOver: Trib to WABASH River
00.10 N of CR 975 S, Vermillion, IN
Built 1990 Load: 32.4 t ADT: 117
TRUEBLOOD Pl
GoodOver: BR HAYWORTH Slough
00.40 N HARLAN DR, Vigo, IN
Built 1984 Load: 32.4 t ADT: 377
CR 600S
GoodOver: Opossum Run
00.16 W of CR 775 W, Warren, IN
Built 1998 Load: 32.4 t ADT: 90
SR 43
GoodOver: MOOTS CREEK
00.60 S SR 18, White, IN
Built 1962 Load: 32.4 t ADT: 7,495
CR 600E
GoodOver: REES DITCH
00.34 S of CR 1300 N, Delaware, IN
Built 1982 Load: 32.5 t ADT: 170
CR 200W
GoodOver: NO NAME CREEK
00.17 N CR 500 S, Delaware, IN
Built 2012 Load: 32.5 t ADT: 170
MILLER ROAD
GoodOver: MILLER DITCH
00.49 E OF STATE ROAD 159, Knox, IN
Built 1997 Load: 32.5 t ADT: 110
SALEM RD
GoodOver: BRYANTS CREEK
00.04 S OF PARAGON RD, Morgan, IN
Built 1989 Load: 32.5 t ADT: 630
CR 78
GoodOver: BRUSHY Fork
00.60 E of CR 11(Brushy F, Perry, IN
Built 1998 Load: 32.5 t ADT: 100
BAILEY RD
GoodOver: HARMONY CREEK
00.33 MI W of CR 250 E, Posey, IN
Built 1984 Load: 32.5 t ADT: 149
CR 625E
GoodOver: MILL CREEK
00.46 N OF CR 450 S, Pulaski, IN
Built 1975 Load: 32.5 t ADT: 50
CR 800W
GoodOver: JOHNSON BRANCH CREEK
00.20 S of US 40, Putnam, IN
Built 1987 Load: 32.5 t ADT: 260
SR 66
GoodOver: LITTLE SANDY CREEK
04.10 W SR 70, Spencer, IN
Built 1932 Load: 32.5 t ADT: 2,760
CR 2175N
GoodOver: HALO RUN
00.78 E of CR 700 E, Spencer, IN
Built 1991 Load: 32.5 t ADT: 30
CR 725N
GoodOver: TIPPECANOE River
00.56 W of CR 1150 W, Carroll, IN
Built 1984 Load: 32.6 t ADT: 359
CR 350 E
GoodOver: BRANCH OF PIGEON CREEK
00.30 S OF CR 850 S, Gibson, IN
Built 1983 Load: 32.6 t ADT: 50
OAKTOWN ROAD
GoodOver: BRANCH OF MARIAH CREEK
00.32 S OF PEPMEIER ROAD, Knox, IN
Built 2019 Load: 32.6 t ADT: 380
CR 800S
GoodOver: BENHAM BRANCH
00.34 E OF BENHAM ROAD, Ripley, IN
Built 1982 Load: 32.6 t ADT: 350
CR 150E
GoodOver: BR E FK LITTLE PIGEON CR
00.50 N of CR 1100 N, Spencer, IN
Built 1940 Load: 32.6 t ADT: 60
SR 156
GoodOver: FISK CREEK
00.97 W SR 250, Switzerland, IN
Built 1939 Load: 32.6 t ADT: 623
HIGH STREET
GoodOver: BORUM RUN
0.40 MILES N OF US 33, Adams, IN
Built 1975 Load: 32.7 t ADT: 1,252
CR 300 EAST
GoodOver: WAGLEY FARLOW DITCH
0.50 MILES S OF CR 600 S, Adams, IN
Built 1999 Load: 32.7 t ADT: 110
STATE LINE ROAD
GoodOver: CLOSE DITCH
3.30 MILES N. JCT. SR-224, Adams, IN
Built 1974 Load: 32.7 t ADT: 244
STATE LINE ROAD
GoodOver: LITTLE BLUE CREEK
0.37 MILES S OF CR 800 N, Adams, IN
Built 1998 Load: 32.7 t ADT: 79
I-69
GoodOver: GRAHAM MCCULLOUGH DIT #4
03.20 S US 24, Allen, IN
Built 1964 Load: 32.7 t ADT: 36,360
SMITH RD
GoodOver: GRAHAM-MCCULLOCH MAIN
00.30 N LOWER HUNTNG RD, Allen, IN
Built 1960 Load: 32.7 t ADT: 5,025
MAYSVILLE RD
GoodOver: BULLERMAN DRAIN
00.30 S OF STATE BOULEVAR, Allen, IN
Built 1969 Load: 32.7 t ADT: 8,696
ROSE AVE
GoodOver: A. MARTIN DRAIN
00.10 E OF GREEN ST, Allen, IN
Built 1945 Load: 32.7 t ADT: 7,000
FLUTTER RD
GoodOver: REVERT DRAIN
01.50 E ST JOE/MAPLECREST, Allen, IN
Built 2015 Load: 32.7 t ADT: 3,000
ERNST ROAD
GoodOver: GRAHAM MCCULLOCH N.D. #2
0.2 MI. E OF HOMESTEAD RD, Allen, IN
Built 2015 Load: 32.7 t ADT: 266
Showing 12,501-12,550 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.