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 100W
FairOver: SEAMONS DITCH
00.10 N of CR 475 S, Benton, IN
Built 1988 Load: 32.7 t ADT: 55
CR 600N
FairOver: Hollingsworth Ditch
00.40 E of CR 800 E, Benton, IN
Built 1994 Load: 32.7 t ADT: 88
CR 100W
FairOver: WALNUT CREEK
00.50 N of 400 N, Blackford, IN
Built 1988 Load: 32.7 t ADT: 110
CR 700 EAST
FairOver: BIG LICK CREEK
00.40 S OF 400 S, Blackford, IN
Built 1994 Load: 32.7 t ADT: 219
CR 400 EAST
FairOver: LITTLE LICK CREEK
01.00 N OF JCT SR 26, Blackford, IN
Built 1986 Load: 32.7 t ADT: 83
CR 600 EAST
FairOver: BIG LICK CREEK
00.30 S OF 400 S, Blackford, IN
Built 1996 Load: 32.7 t ADT: 110
CR 600 EAST
FairOver: TWO MILE DITCH
00.50 N OF JCT SR 26, Blackford, IN
Built 1965 Load: 32.7 t ADT: 110
CR 800 EAST
FairOver: TWO MILE DITCH
00.30 N OF JCT SR 26, Blackford, IN
Built 1975 Load: 32.7 t ADT: 110
CR 875 EAST
FairOver: TWO MILE DITCH
00.80 N OF JCT SR 26, Blackford, IN
Built 1989 Load: 32.7 t ADT: 128
CR 700 EAST
FairOver: SLOCUM DITCH
00.10 N OF 400 N, Blackford, IN
Built 1965 Load: 32.7 t ADT: 110
CR 500 NORTH
FairOver: SLOCUM DITCH
01.00 NW OF 900 E, Blackford, IN
Built 1965 Load: 32.7 t ADT: 110
CR 400 NORTH
FairOver: WALNUT CREEK
00.00 E OF 100 W, Blackford, IN
Built 1975 Load: 32.7 t ADT: 110
JEFFERSON STREET
FairOver: LITTLE LICK CREEK
00.10 N OF 1ST STREET, Blackford, IN
Built 1965 Load: 32.7 t ADT: 566
MONROE STREET
FairOver: LITTLE LICK CREEK
00.10 N OF 1ST STREET, Blackford, IN
Built 1991 Load: 32.7 t ADT: 875
CR 300 SOUTH
FairOver: BIG LICK CREEK
00.20 E OF GADBURY ROAD, Blackford, IN
Built 1988 Load: 32.7 t ADT: 531
CR 500 NORTH
FairOver: SCHWARTZKOPF DITCH
00.40 E OF 400 E, Blackford, IN
Built 1980 Load: 32.7 t ADT: 100
CR 400 SOUTH
FairOver: BIG LICK CREEK
00.40 E OF 400 E, Blackford, IN
Built 1965 Load: 32.7 t ADT: 83
SR 75
FairOver: WILEY CREEK
02.30 N SR 32, Boone, IN
Built 1996 Load: 32.7 t ADT: 1,320
I-65
FairOver: PRAIRIE CREEK
01.75 S SR 39, Boone, IN
Built 1948 Load: 32.7 t ADT: 73,132
CR 350W
FairOver: PRAIRIE CREEK
00.20 N OF CR 450 N, Boone, IN
Built 1994 Load: 32.7 t ADT: 120
CR 600W
FairOver: WOLF CREEK
00.80 N OF CR 200 N, Boone, IN
Built 1920 Load: 32.7 t ADT: 120
CR 350N
FairOver: WOLF CREEK
00.01 W OF CR 700 W, Boone, IN
Built 1981 Load: 32.7 t ADT: 120
CR 700S
FairOver: WILEY THOMPSON DITCH
00.30 W OF CR 200 E, Boone, IN
Built 1930 Load: 32.7 t ADT: 120
CR 450E
FairOver: BRANCH OF FISHBACK CREEK
00.70 N OF CR 400 S, Boone, IN
Built 1930 Load: 32.7 t ADT: 110
CR 950W
FairOver: WALNUT FORK OF SUGAR CR
00.55 N OF CR 100 S, Boone, IN
Built 1960 Load: 32.7 t ADT: 120
CR 900E
FairOver: MOUNTS RUN
00.01 N OF CR 150 S, Boone, IN
Built 1970 Load: 32.7 t ADT: 1,230
CR 550S
FairOver: FISHBACK CREEK
00.45 W OF CR 800 E, Boone, IN
Built 1965 Load: 32.7 t ADT: 2,010
PERRY-WORTH ROAD
FairOver: PRAIRIE CREEK
00.25 S OF CR 100 S, Boone, IN
Built 1965 Load: 32.7 t ADT: 740
INDIANAPOLIS AVE.
FairOver: PRAIRIE CREEK
00.01 SW I-65, Boone, IN
Built 1965 Load: 32.7 t ADT: 1,390
INDIANAPOLIS AVE.
FairOver: PRAIRIE CREEK
00.01 SW I-65, Boone, IN
Built 1965 Load: 32.7 t ADT: 1,390
N MERIDIAN STREET
FairOver: PRAIRIE CREEK
00.10 N OF ROYAL STREET, Boone, IN
Built 2002 Load: 32.7 t ADT: 420
E FORDICE STREET
FairOver: PRAIRIE CREEK
00.01 W OF PARK STREET, Boone, IN
Built 2008 Load: 32.7 t ADT: 790
CR 300S
FairOver: JACKSON RUN
00.60 W OF CR 975 E, Boone, IN
Built 1950 Load: 32.7 t ADT: 2,410
SR 25
FairOver: UNT BRIDGE CREEK
00.60 N US 421, Carroll, IN
Built 2013 Load: 32.7 t ADT: 9,400
WASHINGTON ST
FairOver: OLD ERIE CANAL
00.51 N of SR 25, Carroll, IN
Built 1901 Load: 32.7 t ADT: 1,091
CR 800W
FairOver: WILDCAT Creek
00.46 N of CR 650 S, Carroll, IN
Built 1952 Load: 32.7 t ADT: 246
CR 500E
FairOver: WILDCAT Creek
00.39 S of CR 350 S, Carroll, IN
Built 1993 Load: 32.7 t ADT: 107
CR 1025N
FairOver: LITTLE ROCK CREEK
00.02 W of CR 175 W, Carroll, IN
Built 1930 Load: 32.7 t ADT: 181
OLD SR25 / CICOTT
FairOver: GOOSE CREEK
00.53 S OF US 24, Cass, IN
Built 2001 Load: 32.7 t ADT: 8,825
CR 925E
FairOver: GOOSE CREEK
00.55 N OF CR 350 N, Cass, IN
Built 1988 Load: 32.7 t ADT: 290
CR 725W
FairOver: CROOKED CREEK
00.30 N OF CR 300 N, Cass, IN
Built 1986 Load: 32.7 t ADT: 110
CR 450 EAST
FairOver: EEL RIVER
00.50 S OF CR 75 N, Cass, IN
Built 1967 Load: 32.7 t ADT: 1,810
CR 150N
FairOver: EEL RIVER
00.20 W OF CR 600 E, Cass, IN
Built 1985 Load: 32.7 t ADT: 590
CR 200 NORTH
FairOver: TICK CREEK
01.00 W OF CR 450 E, Cass, IN
Built 1982 Load: 32.7 t ADT: 130
PERRYSBURG ROAD
FairOver: TICK CREEK
00.10 E OF CR 300 E, Cass, IN
Built 1976 Load: 32.7 t ADT: 260
CR 150 NORTH
FairOver: TICK CREEK
00.25 W OF CR 350 E, Cass, IN
Built 1981 Load: 32.7 t ADT: 130
CR 600 EAST
FairOver: WABASH RIVER
00.85 N OF CR 125 S, Cass, IN
Built 1981 Load: 32.7 t ADT: 1,910
CR 600 SOUTH
FairOver: BIG ROCK CREEK
00.40 W OF CR 500 E, Cass, IN
Built 1979 Load: 32.7 t ADT: 260
CR 400 EAST
FairOver: BIG ROCK CREEK
00.10 S OF CR 600 S, Cass, IN
Built 1980 Load: 32.7 t ADT: 110
CR 350S
FairOver: LITTLE DEER CREEK
00.40 W OF CR 925 E, Cass, IN
Built 1976 Load: 32.7 t ADT: 130
Showing 5,851-5,900 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 |