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
CTH D
UnknownOver: STH 11
1.1M W OF JCT USH 51, Rock, WI
Built 2001 ADT: 99
STH EB STH 11
UnknownOver: LRD SOUTH RIVER ROAD
0.3M N OF JCT AVALON RD, Rock, WI
Built 2002 ADT: 99
STH WB STH 11
UnknownOver: LRD SOUTH RIVER ROAD
0.3M N OF JCT AVALON RD, Rock, WI
Built 2002 ADT: 1,500
STH EB STH 11
UnknownOver: LRD SOUTH OAKHILL AVE
0.1M N JCT W KNILANS RD, Rock, WI
Built 2002 ADT: 1,000
STH WB STH 11
UnknownOver: LRD SOUTH OAKHILL AVENUE
0.1M N JCT W KNILANS RD, Rock, WI
Built 2002 ADT: 99
IH 39 SB / IH 90 E
UnknownOver: LRD MILWAUKEE STREET
AT IH 90, Rock, WI
Built 2003 ADT: 8,600
IH 39 NB/ IH 90 WB
UnknownOver: LRD MILWAUKEE STREET
AT IH 90, Rock, WI
Built 2004 ADT: 8,600
IH 39 SB
UnknownOver: LRD COLLEY ROAD
AT IH 90, Rock, WI
Built 2003 ADT: 205
IH 39 NB/90 WB
UnknownOver: LRD COLLEY RD
AT IH90, Rock, WI
Built 2004 ADT: 205
STH 11 WB
UnknownOver: LRD S READ RD
AT STH11, Rock, WI
Built 2004 ADT: 150
LRD CRANSTON RD
UnknownOver: IH 90
0.7M E JCT IH 43, Rock, WI
Built 2003 ADT: 51,200
UNION PACIFIC RAIL
UnknownOver: LRD JACKSON STREET
AT UP RAILROAD, Rock, WI
Built 2004 ADT: 99
IH 39 SB / IH 90 E
UnknownOver: CTH O
AT IH 90, Rock, WI
Built 2003 ADT: 5,900
IH 39 NB/90 WB
UnknownOver: CTH O/ EAST DELAVAN ROAD
90, Rock, WI
Built 2004 ADT: 5,800
LRD HARMONY TOWN H
UnknownOver: STH 26
AT HARMONY TOWN HALL RD, Rock, WI
Built 2012 ADT: 17,500
LRD TOWNLINE ROAD
UnknownOver: STH 26
AT TOWNLINE ROAD, Rock, WI
Built 2012 ADT: 17,000
LRD HENKE RD
UnknownOver: STH 26 NB
AT HENKE RD, Rock, WI
Built 2013 ADT: 8,450
STH 26 NB
UnknownOver: STH 59
4.3 MI. N OF CTH Y, Rock, WI
Built 2013 ADT: 4,700
STH 26 SB
UnknownOver: STH 59
AT STH 26, Rock, WI
Built 2013 ADT: 4,700
STH 26 NB
UnknownOver: LRD E HIGH ST
0.4M E OF CTH M, Rock, WI
Built 2013 ADT: 750
STH 26 SB
UnknownOver: LRD E HIGH ST
0.4M E OF CTH M, Rock, WI
Built 2013 ADT: 750
STH 26 NB
UnknownOver: LRD STORRS LAKE ROAD
AT STH 26, Rock, WI
Built 2013 ADT: 100
STH 26 SB
UnknownOver: LRD STORRS LAKE RD
AT STH 26, Rock, WI
Built 2013 ADT: 100
STH 26 NB
UnknownOver: LRD BOWERS LAKE RD
AT STH 26, Rock, WI
Built 2013 ADT: 1,500
STH 26 SB
UnknownOver: LRD BOWERS LAKE RD
0.5M E OF N JANESVILLE ST, Rock, WI
Built 2013 ADT: 1,500
CTH N
UnknownOver: STH 26
AT CTH N, Rock, WI
Built 2012 ADT: 13,900
BIKE PATH
UnknownOver: STH 26
AT BIKE PATH, Rock, WI
Built 2012 ADT: 30,500
LRD WRIGHT RD
UnknownOver: STH 26
AT WRIGHT RD, Rock, WI
Built 2013 ADT: 18,000
IH 43 SB / STH 81
UnknownOver: IH 39 / IH 90
2.5M E JCT CTH S TO E, Rock, WI
Built 2021 ADT: 48,400
IH 43 NB / STH 81
UnknownOver: IH 39 / IH 90
2.5M E JCT CTH S TO E, Rock, WI
Built 2021 ADT: 48,400
IH 43 SB
UnknownOver: IH 39 / IH 90 / STH 81
IH 43 / IH 39 / IH 90 INT, Rock, WI
Built 2021 ADT: 55,500
IH 39 SB TO IH 43
UnknownOver: IH 39 NB & SB / IH 90 WB
IH 43 / IH 39 / IH 90 INT, Rock, WI
Built 2021 ADT: 59,100
IH 39 NB / IH 90 W
UnknownOver: STH 81
IH-39/90 & IH 43 INTERCHA, Rock, WI
Built 2021 ADT: 5,050
IH 43 NB
UnknownOver: IH 90
IH 43 / IH 39 / IH 90 INT, Rock, WI
Built 2021 ADT: 2,700
LRD HART RD
UnknownOver: IH 39/90
1.4 M N JCT IH-43, Rock, WI
Built 2016 ADT: 52,600
CTH S (SHOPIERE RD
UnknownOver: IH 39
2.4 M NORTH IH43, Rock, WI
Built 2015 ADT: 52,100
LRD CREEK ROAD
UnknownOver: IH 39 / IH 90
0.6 MI N OF JCT WITH CTH, Rock, WI
Built 2016 ADT: 57,700
IH 39 SB / IH 90 E
UnknownOver: LRD TOWN LINE RD
1.5M E JCT CTH G, Rock, WI
Built 2019 ADT: 2,000
IH 39 NB / IH 90 W
UnknownOver: LRD TOWN LINE RD
1.5M E JCT CTH G, Rock, WI
Built 2018 ADT: 1,208
LRD WOODMAN RD EB
UnknownOver: IH 39 / IH 90
LOCATION UNKNOWN, PLEASE, Rock, WI
Built 2017 ADT: 57,700
STH 11 EB (AVALON
UnknownOver: IH 39 / IH 90
7.4 MI N JCT IH 43, Rock, WI
Built 2016 ADT: 57,700
STH 11 WB (AVALON
UnknownOver: IH 39 / IH 90
7.4 M N JCT IH 43, Rock, WI
Built 2016 ADT: 57,700
LRD STATELINE RD E
UnknownOver: IH 39/90
LOCATION UNKNOWN, PLEASE, Rock, WI
Built 2017 ADT: 55,500
STH 11 / E. RACINE
UnknownOver: IH 39 SB
3.1 MI. S OF USH 14, Rock, WI
Built 2013 ADT: 59,200
IH 39 SB / IH 90 E
UnknownOver: LRD PALMER DRIVE
0.5M E JCT STH 11, Rock, WI
Built 2019 ADT: 2,500
IH 39 NB / IH 90 W
UnknownOver: LRD PALMER PARK DR
0.5M E JCT STH 11, Rock, WI
Built 2018 ADT: 2,500
IH 39 SB / IH 90 E
UnknownOver: LRD RUGER AVE
1.6M W JCT USH 14, Rock, WI
Built 2019 ADT: 4,300
IH 39 NB / IH 90 W
UnknownOver: LRD RUGER AVE
1.6M W JCT USH 14, Rock, WI
Built 2018 ADT: 6,200
IH 39 SB / IH 90 E
UnknownOver: LRD MT ZION AVE
1.3M N JCT STH 26, Rock, WI
Built 2019 ADT: 7,000
IH 39 NB / IH 90 W
UnknownOver: LRD MT ZION AVE
1.3M N JCT STH 26, Rock, WI
Built 2018 ADT: 7,400
Showing 2,201-2,250 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 |