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
IH 39 NB / IH 90 W
UnknownOver: LRD DROTNING ROAD
0.6M E JCT CTH BN, Dane, WI
Built 2018 ADT: 100
CTH BN
UnknownOver: IH 39
6.6 MI N US 51 RAMP, Dane, WI
Built 2016 ADT: 57,800
LRD CHURCH STREET
UnknownOver: IH 39
7 M N JCT USH 51, Dane, WI
Built 2016 ADT: 57,800
CTH N
UnknownOver: IH 39 / IH 90
9.1 MI N OF JCT WITH USH, Dane, WI
Built 2017 ADT: 57,150
LRD WILLIAMS DRIVE
UnknownOver: IH 39 / IH 90
4.5 M E JCT USH 12 TO E, Dane, WI
Built 2016 ADT: 59,200
IH 39 SB / IH 90 E
UnknownOver: CTH MN
0.7M E JCT CTH AB, Dane, WI
Built 2019 ADT: 2,300
IH 39 NB / IH 90 W
UnknownOver: CTH MN
0.7M E JCT CTH AB, Dane, WI
Built 2018 ADT: 2,600
CTH AB
UnknownOver: IH 90 / IH 39
2.3M E JCT USH 12 TO E, Dane, WI
Built 2017 ADT: 59,200
IH 39/90 SB
UnknownOver: LRD SIGGLEKOW RD
SIGGLEKOW RD, Dane, WI
Built 2014 ADT: 1,600
IH 39 NB / IH 90 W
UnknownOver: LRD SIGGELKOW RD
0.4M W JCT CTH AB, Dane, WI
Built 2020 ADT: 1,400
IH I-39 NB/90 WB
UnknownOver: USH 12/18 EB
T. OF BLOOMING GROVE, Dane, WI
Built 2021 ADT: 46,300
IH I-39 NB / I-90
UnknownOver: USH 12/18 WB
T. OF BLOOMING GROVE, Dane, WI
Built 2021 ADT: 19,300
IH I-39 NB / I-90
UnknownOver: USH RAMP TO USH 12/18 WB
T. OF BLOOMING GROVE, Dane, WI
Built 2021 ADT: 10,000
IH I-39 NB / I-90
UnknownOver: LRD FEMRITE DRIVE
T. OF BLOOMING GROVE, Dane, WI
Built 2021 ADT: 3,300
USH 14 WB
UnknownOver: LRD BYRNE RD
0.8M W JCT CTH MM, Dane, WI
Built 2021 ADT: 200
USH 12/18 EB & WB
UnknownOver: STH 73
AT USH 12/18, Dane, WI
Built 2015 ADT: 3,500
USH 18 WB / USH 15
UnknownOver: CTH PD / MCKEE ROAD
0.9 MI W JCT S SEMINOLE H, Dane, WI
Built 2019 ADT: 27,200
USH 18 EB / USH 15
UnknownOver: CTH PD / MCKEE ROAD
0.9 MI W JCT S SEMINOLE H, Dane, WI
Built 2019 ADT: 28,250
LRD WILLIAMSBURG W
UnknownOver: USH 18/151 (VERONA ROAD)
0.6 M N JCT CTH PD/MCKEE, Dane, WI
Built 2019 ADT: 54,900
PEDESTRIAN BRIDGE
UnknownOver: LRD WALNUT ST NB & SB
AT BIKE PATH, Dane, WI
Built 2014 ADT: 1
CTH M/ SOUTH PLEAS
UnknownOver: CTH PD WB / MCKEE RD UND
150 FT NORTH OF JCT WITH, Dane, WI
Built 2019 ADT: 10,400
ICE AGE TRAIL
UnknownOver: CTH PD
2.3 MI W JCT WITH USH 151, Dane, WI
Built 2017 ADT: 13,500
BADGER STATE TRAIL
UnknownOver: CTH PD
AT BADGER STATE TRAIL, Dane, WI
Built 2020 ADT: 29,900
MILITARY RIDGE STA
UnknownOver: CTH CHT F / CAVE OF THE
0.2M N JCT USH 18, Dane, WI
Built 2015 ADT: 99
UNIVERSITY BAY DRI
UnknownOver: LRD UNIVERSITY BAY DRIVE
05070000000 004, Dane, WI
CTH AB
UnknownOver: USH 12/USH 18
2.0 MI E JCT IH 39/90, Dane, WI
Built 2023 ADT: 14,180
PEDESTRIAN WALKWAY
UnknownOver: USH 151-W WASHINGTON AVE
2.3M N JCT USH 12 TO E, Dane, WI
Built 1969 ADT: 18,250
CTH MS / UNIVERSIT
UnknownOver: LRD OLD MIDDLETON RD
3.2M E JCT USH 12, Dane, WI
Built 1934 ADT: 4,100
CNW RR
UnknownOver: LRD VIADUCT RD
0.5M E JCT STH 113, Dane, WI
Built 1896 ADT: 45
MILITARY RIDGE STA
UnknownOver: LRD FITCHRONA RD
2.9M N JCT CTH M, Dane, WI
Built 1984 ADT: 815
CNW RR
UnknownOver: LRD LOCUST GROVE RD
0.8M W JCT CTH MM, Dane, WI
Built 1916 ADT: 50
CNW RR
UnknownOver: CTH CC JEFFERSON ST
0.1M W JCT USH 14, Dane, WI
Built 1900 ADT: 740
CNW RR
UnknownOver: LRD S MAIN ST
0.5M S JCT USH 14, Dane, WI
Built 1880 ADT: 250
CMSTPP RR
UnknownOver: LRD GARDEN ST
0.4M S JCT USH 51, Dane, WI
Built 1920 ADT: 400
CNW RR
UnknownOver: LRD TROY DR
0.7M W JCT STH 113, Dane, WI
Built 1880 ADT: 2,300
CNW RR
UnknownOver: LRD BRAM ST
0.2M E JCT USH 151, Dane, WI
Built 1920 ADT: 1,000
CNW RR
UnknownOver: LRD SHERIDAN DR
1.3M W JCT STH 113, Dane, WI
Built 1967 ADT: 1,000
PEDESTRIAN WALKWAY
UnknownOver: LRD S PARK ST
0.2M N JCT USH 151, Dane, WI
Built 1969 ADT: 22,550
CMSTPP RR
UnknownOver: LRD WALNUT ST
1.7M W JCT USH 151, Dane, WI
Built 1930 ADT: 5,000
PEDESTRIAN WALKWAY
UnknownOver: LRD CAMPUS DR
1.2M W JCT USH 151, Dane, WI
Built 1977 ADT: 41,400
MILITARY RIDGE TRA
UnknownOver: LRD RED WOLF CIRCLE
04450000000 004, Dane, WI
USH STH 73-USH B15
UnknownOver: USH 151
2.5M N JCT STH 16 (N), Dodge, WI
Built 1976 ADT: 21,500
USH 151 SB
UnknownOver: STH 49
0.8M N JCT CTH I, Dodge, WI
Built 1961 ADT: 7,200
USH 151 NB
UnknownOver: STH 49
0.7M N JCT CTH I, Dodge, WI
Built 1961 ADT: 7,200
CTH M CENTER STR
UnknownOver: STH 16
2.8M E JCT CTH Q, Dodge, WI
Built 1960 ADT: 6,300
LRD CENTER RD
UnknownOver: USH 151
1.9M N JCT CTH DE, Dodge, WI
Built 1962 ADT: 21,600
LRD INDUSTRIAL DR
UnknownOver: USH 151
1.6M N JCT STH 33 TO E, Dodge, WI
Built 1963 ADT: 21,600
CTH G
UnknownOver: STH 16-STH 60
0.7M E JCT CTH J TO S, Dodge, WI
Built 1967 ADT: 3,900
STH 60
UnknownOver: LRD LEVEL VALLEY RD
0.4M S JCT STH 109, Dodge, WI
Built 1967 ADT: 520
STH 60
UnknownOver: CTH R
4.0M N JCT CTH ME, Dodge, WI
Built 1967 ADT: 1,600
Showing 601-650 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 |