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 41 SB
UnknownOver: LRD MAIN ST
1.3M W JCT STH 114, Winnebago, WI
Built 1994 ADT: 8,000
IH 41 NB
UnknownOver: LRD MAIN ST
1.3M W JCT STH 114, Winnebago, WI
Built 1994 ADT: 8,000
IH 41 SB
UnknownOver: CTH O (NORTH STREET)
1.2M S JCT STH 150, Winnebago, WI
Built 1994 ADT: 3,100
IH 41 NB
UnknownOver: CTH O (NORTH STREET)
1.2M S JCT STH 150, Winnebago, WI
Built 1994 ADT: 3,100
IH 41 SB
UnknownOver: CTH II
1.1M E JCT CTH O, Winnebago, WI
Built 1994 ADT: 9,300
IH 41 NB
UnknownOver: CTH II
TOWN OF MENASHA, Winnebago, WI
Built 1994 ADT: 9,300
IH 41 SB
UnknownOver: LRD GREEN BAY ROAD
1.2M E JCT STH 441, Winnebago, WI
Built 1994 ADT: 4,800
IH 41 NB
UnknownOver: LRD GREEN BAY ROAD
1.2M E JCT STH 441, Winnebago, WI
Built 1994 ADT: 4,800
IH 41 SB
UnknownOver: CTH BB
3.5M E JCT USH 45, Winnebago, WI
Built 1992 ADT: 21,200
IH 41 NB
UnknownOver: CTH BB
3.5M E JCT USH 45, Winnebago, WI
Built 1992 ADT: 21,200
STH 44-STH 91 E
UnknownOver: IH 41
2.9M N JCT STH 26 TO S, Winnebago, WI
Built 1993 ADT: 48,600
USH 45 SB OFF RAMP
UnknownOver: USH 10
USH 10 TOWN OF WINCHESTER, Winnebago, WI
Built 2002 ADT: 21,100
USH 10 EB OFF RAMP
UnknownOver: USH 10
USH 10 TOWN OF WINCHESTER, Winnebago, WI
Built 2002 ADT: 21,100
USH 10 EB
UnknownOver: LRD COLD SPRING ROAD
TOWN OF MENASHA, Winnebago, WI
Built 1997 ADT: 4,800
USH 10 WB
UnknownOver: LRD COLD SPRING ROAD
TOWN OF MENASHA, Winnebago, WI
Built 1997 ADT: 4,800
USH 10 EB
UnknownOver: LRD CTH CB
TOWN OF MENASHA, Winnebago, WI
Built 1997 ADT: 12,700
USH 10 WB
UnknownOver: LRD CTH CB
TOWN OF MENASHA, Winnebago, WI
Built 1997 ADT: 12,700
USH 10 WB
UnknownOver: LRD DALE RD
TOWN OF WINCHESTER, Winnebago, WI
Built 2002 ADT: 225
USH 10 EB
UnknownOver: LRD DALE RD
TOWN OF WINCHESTER, Winnebago, WI
Built 2002 ADT: 225
USH 10 EB
UnknownOver: LRD IRISH ROAD
TOWN OF MENASHA, Winnebago, WI
Built 1997 ADT: 1,400
USH 10 WB
UnknownOver: LRD IRISH ROAD
TOWN OF MENASHA, Winnebago, WI
Built 1997 ADT: 1,400
USH 10 EB
UnknownOver: LRD NORTH CLAYTON ROAD
TOWN OF CLAYTON, Winnebago, WI
Built 1997 ADT: 1,000
USH 10 WB
UnknownOver: LRD NORTH CLAYTON ROAD
TOWN OF CLAYTON, Winnebago, WI
Built 1997 ADT: 1,000
STH 76
UnknownOver: USH 10
1.0M E JCT N. OAKWOOD AVE, Winnebago, WI
Built 2002 ADT: 17,400
IH 41 SB
UnknownOver: STH 76
0.9M N JCT CTH Y, Winnebago, WI
Built 1995 ADT: 19,600
IH 41 NB
UnknownOver: USH 76
0.9M N JCT CTH Y, Winnebago, WI
Built 1995 ADT: 19,600
USH STH 45 NB OFF
UnknownOver: USH 10WB/USH45 SB RAMP
AT USH 45, Winnebago, WI
Built 2003 ADT: 1,500
USH STH 45 NB OFF
UnknownOver: USH 10 EB
3.1M E JCT USH 45 TO N, Winnebago, WI
Built 2003 ADT: 8,000
USH 10 WB OFF RAMP
UnknownOver: USH 10 EB
AT USH 10W, Winnebago, WI
Built 2003 ADT: 7,700
USH 10 WB
UnknownOver: LRD CTH M
AT USH 10, Winnebago, WI
Built 2003 ADT: 940
USH 10 EB
UnknownOver: LRD CTH M
AT USH 10, Winnebago, WI
Built 2003 ADT: 940
STH 26
UnknownOver: IH 41
2.9M N JCT CTH Z, Winnebago, WI
Built 2001 ADT: 42,900
USH 10 WB
UnknownOver: LRD PIONEER RD
AT USH 10, Winnebago, WI
Built 2003 ADT: 875
USH 10 EB
UnknownOver: LRD PIONEER RD
AT USH 10, Winnebago, WI
Built 2003 ADT: 875
USH 10 WB
UnknownOver: LRD FAIRVIEW RD
AT USH 10, Winnebago, WI
Built 2003 ADT: 1,100
USH 10 EB
UnknownOver: LRD FAIRVIEW RD
AT USH 10, Winnebago, WI
Built 2003 ADT: 1,100
USH 10 WB
UnknownOver: LRD NORTH OAKWOOD AVENUE
AT USH 10, Winnebago, WI
Built 2003 ADT: 230
USH 10 EB
UnknownOver: LRD NORTH OAKWOOD AVENUE
AT USH 10, Winnebago, WI
Built 2003 ADT: 230
LRD JACOBSON ROAD
UnknownOver: IH 41
1.1M N JCT CTH II, Winnebago, WI
Built 2001 ADT: 104,000
CTH T
UnknownOver: USH 45
AT INTERSECTION, Winnebago, WI
Built 2008 ADT: 19,600
USH 45 SB
UnknownOver: CTH Y
TOWN OF OSHKOSH, Winnebago, WI
Built 2002 ADT: 470
USH 45 NB
UnknownOver: CTH Y
TOWN OF OSHKOSH, Winnebago, WI
Built 2002 ADT: 470
LRD BROOKS RD
UnknownOver: USH 45
1.5M N JCT USH 41, Winnebago, WI
Built 2002 ADT: 17,100
LRD SKELETON BRIDG
UnknownOver: USH 45
2.6M N JCT USH 41, Winnebago, WI
Built 2002 ADT: 17,100
USH 45 SB
UnknownOver: STH 116/CTH GG
AT USH 45, Winnebago, WI
Built 2003 ADT: 9,300
USH 45 NB
UnknownOver: STH 116/CTH GG
AT USH 45, Winnebago, WI
Built 2003 ADT: 9,300
USH 10 WB
UnknownOver: LRD MARSH RD
AT USH 10, Winnebago, WI
Built 2003 ADT: 150
USH 10 EB
UnknownOver: LRD MARSH RD
AT USH 10, Winnebago, WI
Built 2003 ADT: 150
USH 10 WB
UnknownOver: LRD TOWN LINE ROAD
0.4M N JCT EAST RD, Winnebago, WI
Built 2002 ADT: 100
USH 10 EB
UnknownOver: LRD TOWN LINE ROAD
TOWN OF WOLF RIVER, Winnebago, WI
Built 2002 ADT: 100
Showing 2,801-2,850 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 |