Total Bridges
14,851
Public highway bridges in Wisconsin
State profile · Near national median SD
Wisconsin bridge safety
Condition ratings, load ratings, and structural-deficiency data for every public highway bridge in Wisconsin — drawn straight from the FHWA National Bridge Inventory.
- 14,851
- Public bridges
- 41.3%
- Good condition
- 6.1%
- Poor condition
- 6.1%
- Structurally deficient
Good Condition
41.3%
6,130 bridges rated 7-9
-8.7pp vs 50% benchmark
Poor Condition
6.1%
911 bridges rated 0-4
Structurally Deficient
6.1%
911 bridges flagged for repair priority
-0.9pp vs national avg 7.0%
Wisconsin vs national bridge condition
Wisconsin — Good condition share 41.3%
National avg
Share of bridges rated 7-9 on the FHWA 0-9 scale (deck, superstructure, substructure all good).
Wisconsin — Structurally deficient share 20.4%
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 — Wisconsin (FHWA NBI)
Counties (72)
Adams 43 Ashland 92 Barron 321 Bayfield 103 Brown 478 Buffalo 239 Burnett 68 Calumet 63 Chippewa 366 Clark 297 Columbia 191 Crawford 212 Dane 624 Dodge 219 Door 32 Douglas 143 Dunn 252 Eau Claire 242 Florence 20 Fond du Lac 256 Forest 54 Grant 385 Green 249 Green Lake 50 Iowa 212 Iron 52 Jackson 220 Jefferson 186 Juneau 174 Kenosha 121 Kewaunee 93 La Crosse 250 Lafayette 217 Langlade 78 Lincoln 158 Manitowoc 272 Marathon 534 Marinette 136 Marquette 85 Menominee 25 Milwaukee 1005 Monroe 385 Oconto 149 Oneida 64 Outagamie 300 Ozaukee 107 Pepin 57 Pierce 248 Polk 77 Portage 192 Price 104 Racine 143 Richland 298 Rock 325 Rusk 152 Sauk 277 Sawyer 98 Shawano 162 Sheboygan 249 St. Croix 308 Taylor 176 Trempealeau 260 Vernon 333 Vilas 29 Walworth 209 Washburn 54 Washington 166 Waukesha 380 Waupaca 172 Waushara 54 Winnebago 264 Wood 242
Wisconsin 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 Wisconsin on the same metric.
28
Mississippi
5.92% top marginal rate
45
South Carolina
6.10% top marginal rate
55
Wisconsin
6.13% top marginal rate
37
North Carolina
6.16% top marginal rate
15
Hawaii
6.47% top marginal rate
Bridges Needing Most Attention in Wisconsin
Six lowest-condition bridges in Wisconsin, ranked by composite NBI rating. Each is inspected at least every 24 months.
LRD MARKET RD
PoorOver: BEAR CREEK
1.2M N JCT STH 76, Outagamie, WI
Built 1958 Load: 1.6 t ADT: 1,175
LRD WOODFORD DR
PoorOver: RAILS TO TRAILS TRAIL
0.3M E JCT USH 45, Washington, WI
Built 1910 Load: 1.6 t ADT: 47
LRD ACCESS RD
PoorOver: MENASHA CHANNEL
ACCESS TO PARKING LOT BY, Winnebago, WI
Built 1960 Load: 1.6 t ADT: 20
CTH A
Structurally DeficientOver: UNION PACIFIC RR
1.0M W JCT STH 73, Columbia, WI
Built 1910 Load: 3.2 t ADT: 197
LRD OLD 64 (DEAD E
Structurally DeficientOver: EVERGREEN CREEK
0.1M N JCT STH 64, Langlade, WI
Built 1916 Load: 3.2 t ADT: 6
LRD CORNELL LANE (
Structurally DeficientOver: BR COON CREEK
0.1M E JCT USH 14, Vernon, WI
Built 1985 Load: 3.2 t ADT: 10
All Bridges in Wisconsin
STH 172 WB
UnknownOver: IH 43
2.8M N JCT USH 141 TO N, Brown, WI
Built 1980 ADT: 29,500
IH RAMP STH 172 EB
UnknownOver: IH 43
3.1M N JCT USH 141 TO N, Brown, WI
Built 1981 ADT: 29,500
LRD ALLOUEZ AVE
UnknownOver: IH 43
3.3M N JCT USH 141 TO N, Brown, WI
Built 1981 ADT: 38,800
USH 141-STH 29
UnknownOver: IH 43
3.6M N JCT USH 141 TO N, Brown, WI
Built 1980 ADT: 42,800
CNW RR
UnknownOver: IH 43
3.6M N JCT USH 141 TO N, Brown, WI
Built 1981 ADT: 45,500
CTH JJ
UnknownOver: IH 43
4.0M N JCT USH 141 TO N, Brown, WI
Built 1981 ADT: 38,800
CNW RR
UnknownOver: CTH JJ
0.1M E JCT STH 29, Brown, WI
Built 1981 ADT: 11,100
IH 41 NB
UnknownOver: LRD LITTLE RAPIDS RD
AT IH 41, Brown, WI
Built 2000 ADT: 100
LRD GREENBRIER RD
UnknownOver: IH 43
4.5M N JCT USH 141 TO N, Brown, WI
Built 1981 ADT: 36,700
IH 43 SB
UnknownOver: LRD E MASON ST
1.8M E JCT STH 29, Brown, WI
Built 1981 ADT: 22,400
IH 43 NB
UnknownOver: LRD E MASON ST
1.8M E JCT STH 29, Brown, WI
Built 1981 ADT: 22,400
IH 43 SB
UnknownOver: LRD BAIRD CREEK RD
2.2M E JCT STH 54, Brown, WI
Built 1979 ADT: 400
IH 43 NB
UnknownOver: LRD BAIRD CREEK RD
2.2M E JCT STH 54, Brown, WI
Built 1979 ADT: 400
LRD HUMBOLDT RD
UnknownOver: IH 43
2.0M N JCT CTH V, Brown, WI
Built 1978 ADT: 34,100
IH 43 SB
UnknownOver: LRD UNIVERSITY AVE
1.0M E JCT STH 54, Brown, WI
Built 1979 ADT: 4,000
IH 43 NB
UnknownOver: LRD UNIVERSITY AVE
1.0M E JCT STH 54, Brown, WI
Built 1979 ADT: 4,000
IH RAMP IH 43 NB-S
UnknownOver: LRD UNIVERSITY AVE
0.6M E JCT STH 54, Brown, WI
Built 1979 ADT: 4,000
IH RAMP IH 43 SB-S
UnknownOver: STH 54 WB-STH 57 SB
5.7M W JCT STH 57 TO N, Brown, WI
Built 1979 ADT: 20,900
IH 43 SB
UnknownOver: STH 54 EB-STH 57 NB
4.0M E JCT STH 29 TO E, Brown, WI
Built 1979 ADT: 15,000
IH 43 NB
UnknownOver: STH 54 EB-STH 57 NB
4.1M E JCT STH 29 TO E, Brown, WI
Built 1979 ADT: 15,000
IH RAMP IH 43 NB-S
UnknownOver: STH 54 EB-STH 57 NB
4.7M E JCT STH 29 TO E, Brown, WI
Built 1979 ADT: 18,900
IH 43 SB
UnknownOver: STH 54 WB-STH 57 SB
5.0M W JCT STH 57 TO N, Brown, WI
Built 1979 ADT: 20,900
IH 43 NB
UnknownOver: STH 54 WB-STH 57 SB
4.9M W JCT STH 57 TO N, Brown, WI
Built 1979 ADT: 20,900
STH 54 WB-STH 57 S
UnknownOver: LRD UNIVERSITY AVE
0.2M S JCT CTH A, Brown, WI
Built 1979 ADT: 8,500
STH 54 EB-STH 57 N
UnknownOver: LRD UNIVERSITY AVE
0.9M E JCT STH 54, Brown, WI
Built 1979 ADT: 8,500
IH 43 SB
UnknownOver: LRD DANZ AVE
0.5M N JCT STH 54, Brown, WI
Built 1979 ADT: 1,900
IH 43 NB
UnknownOver: LRD DANZ AVE
0.5M N JCT STH 54, Brown, WI
Built 1979 ADT: 1,900
IH 43 SB
UnknownOver: LRD IRWIN AVE
0.5M N JCT STH 54, Brown, WI
Built 1978 ADT: 2,900
IH 43 NB
UnknownOver: LRD IRWIN AVE
0.5M N JCT STH 54, Brown, WI
Built 1978 ADT: 2,900
IH RAMP IH 43 NB-W
UnknownOver: LRD IRWIN AVE
0.5M N JCT STH 54, Brown, WI
Built 1978 ADT: 2,900
IH 43
UnknownOver: LRD WEBSTER AVE
0.5M N JCT STH 54, Brown, WI
Built 1978 ADT: 13,900
LRD ATKINSON DRIVE
UnknownOver: IH 43
4.1M N JCT STH 54 TO W, Brown, WI
Built 1978 ADT: 40,000
LRD MILITARY AVE
UnknownOver: IH 43
5.3M N JCT STH 54 (N), Brown, WI
Built 1978 ADT: 40,000
STH 29 WB
UnknownOver: STH 32
4.3M S JCT STH 160, Brown, WI
Built 1988 ADT: 7,900
STH 29 EB
UnknownOver: STH 32
4.4M S JCT STH 160, Brown, WI
Built 1988 ADT: 7,900
LRD COOPERSTOWN RD
UnknownOver: IH 43
4.9M N JCT STH 147, Brown, WI
Built 1979 ADT: 22,400
STH 96
UnknownOver: IH 43
6.2M N JCT STH 147, Brown, WI
Built 1980 ADT: 22,600
IH 43 SB
UnknownOver: LRD TOWN HALL RD
1.1M E JCT CTH NN, Brown, WI
Built 1980 ADT: 200
IH 43 NB
UnknownOver: LRD TOWN HALL RD
1.1M E JCT CTH NN, Brown, WI
Built 1980 ADT: 200
LRD LANGES CORNER
UnknownOver: IH 43
3.3M N JCT STH 96 TO E, Brown, WI
Built 1980 ADT: 22,400
IH 43 SB
UnknownOver: CTH NN
2.7M N JCT CTH X, Brown, WI
Built 1981 ADT: 930
IH 43 NB
UnknownOver: CTH NN
2.0M N JCT CTH X, Brown, WI
Built 1980 ADT: 930
IH 43 SB
UnknownOver: LRD PINE GROVE RD
0.4M W JCT CTH NN, Brown, WI
Built 1980 ADT: 200
IH 43 NB
UnknownOver: LRD PINE GROVE RD
0.4M W JCT CTH NN, Brown, WI
Built 1980 ADT: 200
IH 43 SB
UnknownOver: LRD SHADOW LANE
0.5M E JCT CTH MM, Brown, WI
Built 1980 ADT: 150
IH 43 NB
UnknownOver: LRD SHADOW LANE
0.5M E JCT CTH MM, Brown, WI
Built 1980 ADT: 150
LRD NORTH AVE
UnknownOver: IH 43
1.0M N JCT STH 96 TO E, Brown, WI
Built 1980 ADT: 22,400
LRD BROWN RD
UnknownOver: USH 141 - USH 41
8.8M N JCT USH 141 TO S, Brown, WI
Built 2000 ADT: 30,800
LRD NORFIELD ROAD
UnknownOver: USH 41 - USH 141
7.8 N JCT USH 141 TO S, Brown, WI
Built 2000 ADT: 36,100
STH 57 SB
UnknownOver: STH 54
2.8M W JCT CTH T, Brown, WI
Built 2000 ADT: 8,500
Showing 101-150 of 14,851 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 |