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
USH 18 WB-USH 151
UnknownOver: STH 69
3.5M N JCT CTH PB TO S, Dane, WI
Built 1994 ADT: 6,200
LRD LOCUST DRIVE
UnknownOver: USH 18-USH 151
1.0M E JCT STH TO S, Dane, WI
Built 1994 ADT: 26,700
CTH M
UnknownOver: USH 18-USH 151
1.5M E JCT STH 69 TO S, Dane, WI
Built 1994 ADT: 27,500
USH 18 EB-USH 151
UnknownOver: CTH OLD CTH PB
0.3M N JCT CTH M, Dane, WI
Built 1995 ADT: 3,800
USH 18 WB-USH 151
UnknownOver: CTH OLD CTH PB
0.8M N JCT CTH M, Dane, WI
Built 1995 ADT: 3,800
USH 18 EB-USH 151
UnknownOver: LRD WHALEN ROAD
0.8M E JCT CTH M, Dane, WI
Built 1995 ADT: 2,300
USH 18 WB-USH 151
UnknownOver: LRD WHALEN ROAD
0.8M E JCT CTH M, Dane, WI
Built 1995 ADT: 2,300
USH 18 EB-USH 151
UnknownOver: LRD GRANDVIEW ROAD
0.1M E JCT CTH PB, Dane, WI
Built 1995 ADT: 99
USH 18 WB-USH 151
UnknownOver: LRD GRANDVIEW ROAD
0.1M E JCT CTH PB, Dane, WI
Built 1995 ADT: 99
USH 18 EB-USH 151
UnknownOver: LRD E.B. ENTRANCE RAMP
0.4M E JCT CTH PB, Dane, WI
Built 1995 ADT: 4,400
USH 18 WB-USH 151
UnknownOver: LRD E.B. ENTRANCE RAMP
0.4M E JCT CTH PB, Dane, WI
Built 1995 ADT: 4,400
IH 94 EB
UnknownOver: IH 90 WB
4.3M W JCT USH 12 TO E, Dane, WI
Built 1996 ADT: 54,500
IH 39SB/90 EB
UnknownOver: CTH T
0.9M E JCT STH 30, Dane, WI
Built 1997 ADT: 5,800
IH 94 EB
UnknownOver: CTH T
0.9M E JCT STH 30, Dane, WI
Built 1996 ADT: 6,700
IH WB CD RDWY
UnknownOver: USH 151
TOWN OF BURKE, Dane, WI
Built 2002 ADT: 70,400
IH EB CD RDWY
UnknownOver: USH 151
TOWN OF BURKE, Dane, WI
Built 2002 ADT: 70,400
LRD HIGH CROSSING
UnknownOver: IH /39/90/94
0.1M E JCT USH 151 TO N, Dane, WI
Built 2000 ADT: 109,000
CTH N
UnknownOver: USH 12-USH 18
3.0M E JCT IH 90, Dane, WI
Built 1998 ADT: 14,200
IH RAMP USH 12 EB-
UnknownOver: USH 12 WB-USH 18 WB
1.4M W JCT CTH AB (A), Dane, WI
Built 1997 ADT: 19,300
IH 39 SB/90 EB
UnknownOver: RAMP IH 39NB/90WB-USH 12
AT JCT IH 90-USH 12-18, Dane, WI
Built 1997 ADT: 9,500
IH 39 SB/90 EB
UnknownOver: LRD FEMRITE RD
1.6M W JCT CTH AB, Dane, WI
Built 1997 ADT: 3,300
IH 39 NB / IH 90 W
UnknownOver: LRD FEMRITE RD
1.6M W JCT CTH AB, Dane, WI
Built 1997 ADT: 3,000
IH 39 SB/IH 90 EB
UnknownOver: USH 12 WB-USH 18 WB
1.6M W JCT CTH AB (A), Dane, WI
Built 1997 ADT: 19,300
IH 39 NB OFF RAMP
UnknownOver: USH 12 WB-USH 18 WB
1.5M W JCT CTH AB, Dane, WI
Built 1997 ADT: 8,200
IH 39 SB/90 EB
UnknownOver: USH 12 EB-USH 18 EB
1.5M E JCT USH 51 (A), Dane, WI
Built 1997 ADT: 46,300
IH 39 NB OFF RAMP
UnknownOver: USH 12 EB-USH 18 EB
1.6M E JCT USH 51 (A), Dane, WI
Built 1997 ADT: 46,300
LRD MILWAUKEE ST
UnknownOver: IH 90 EB
0.7M E JCT IH 94 TO E, Dane, WI
Built 1997 ADT: 48,700
WISCONSIN & SOUTHE
UnknownOver: LRD PARK STREET
CITY OF MADISON, Dane, WI
Built 1998 ADT: 99
BIKE TRAIL
UnknownOver: USH 12 &14
6.1M E JCT USH 14 TO W, Dane, WI
Built 1998 ADT: 85,900
IH 94 EB
UnknownOver: LRD SPRECHER RD.
AT IH 94, Dane, WI
Built 2011 ADT: 10,000
IH 94 WB
UnknownOver: LRD SPRECHER RD.
AT INTERSECTION, Dane, WI
Built 2009 ADT: 10,000
IH 94 EB
UnknownOver: LRD GASTON ROAD
GASTON ROAD, Dane, WI
Built 2012 ADT: 2,100
IH 94 WB
UnknownOver: LRD GASTON ROAD
0.3M S JCT CTH T, Dane, WI
Built 2011 ADT: 2,100
IH 94 EB
UnknownOver: CTH N
AT IH94, Dane, WI
Built 2012 ADT: 14,600
IH 94 WB
UnknownOver: LRD CTH N
0.1M S JCT CTH TT, Dane, WI
Built 2011 ADT: 14,900
CTH C/REINER ROAD
UnknownOver: USH 151 NB
1.2M N XING OF AMERICAN, Dane, WI
Built 2005 ADT: 30,600
CTH V
UnknownOver: IH 90/94
TOWN OF VIENNA, Dane, WI
Built 2002 ADT: 58,000
ICE AGE TRAIL
UnknownOver: USH 12 E/W
5.9M E OF JCT STH 188, Dane, WI
Built 2003 ADT: 12,350
USH 12 EB
UnknownOver: USH PARMENTER STREET
AT USH12, Dane, WI
Built 2005 ADT: 4,800
USH 12 WB
UnknownOver: LRD PARMENTER STREET
AT USH12, Dane, WI
Built 2005 ADT: 4,800
USH 12 EB
UnknownOver: LRD SCHNEIDER RD
AT USH12, Dane, WI
Built 2005 ADT: 100
USH 12 WB
UnknownOver: LRD SCHNEIDER RD
AT USH12, Dane, WI
Built 2006 ADT: 100
USH 12 EB
UnknownOver: LRD AIRPORT RD
AT USH12, Dane, WI
Built 2005 ADT: 15,000
USH 12 WB
UnknownOver: LRD AIRPORT RD
AT USH12, Dane, WI
Built 2005 ADT: 15,000
USH 12 EB
UnknownOver: LRD DISCOVERY DRIVE
AT USH12, Dane, WI
Built 2005 ADT: 6,300
USH 12 WB
UnknownOver: LRD DISCOVERY DRIVE
AT USH12, Dane, WI
Built 2005 ADT: 6,300
USH 12WB - ON RAMP
UnknownOver: USH 12WB OFF RAMP
AT USH12, Dane, WI
Built 2005 ADT: 5,700
LRD AGRICULTURAL D
UnknownOver: USH 12/18
1.3M E JCT USH 51 (A), Dane, WI
Built 2005 ADT: 86,700
LRD HANSON RD
UnknownOver: IH 39/90/94
AT PORTAGE RD, Dane, WI
Built 2008 ADT: 72,200
IH 39 SB
UnknownOver: LRD LIEN RD
AT INTERSECTION, Dane, WI
Built 2010 ADT: 4,700
Showing 501-550 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 |