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
UNION PACIFIC RR
UnknownOver: LRD FOREST ST
1.1M N JCT USH BUS 12, Eau Claire, WI
Built 1911 ADT: 2,140
UNION PACIFIC RR
UnknownOver: LRD FOREST ST
0.4M N JCT USH BUS 12, Eau Claire, WI
Built 1918 ADT: 2,140
UNION PACIFIC RR
UnknownOver: LRD FOREST ST
0.6M N JCT USH BUS 12, Eau Claire, WI
Built 1918 ADT: 2,140
LRD STATE ST
UnknownOver: LRD PUTNAM DR
2.0M W JCT USH B12, Eau Claire, WI
Built 1931 ADT: 50
USH 41 NB
UnknownOver: CTH F
0.5M E JCT STH 175, Fond du Lac, WI
Built 1953 ADT: 430
IH 41 SB
UnknownOver: CTH F
0.5M E JCT STH 175, Fond du Lac, WI
Built 1957 ADT: 430
STH 23
UnknownOver: LRD BROOKE STREET
CITY OF FOND DU LAC, Fond du Lac, WI
Built 2001 ADT: 99
CTH OOO (W. SCOTT
UnknownOver: IH 41
0.7M N JCT STH 23 TO E, Fond du Lac, WI
Built 1973 ADT: 44,700
CTH OO (WINNEBAGO
UnknownOver: IH 41
2.0M N JCT STH 23 TO E, Fond du Lac, WI
Built 1973 ADT: 43,100
LRD TOWN LINE RD
UnknownOver: IH 41
3.6M N JCT STH 23 TO E, Fond du Lac, WI
Built 1973 ADT: 43,100
USH 151 NB ON-RAMP
UnknownOver: USH 151
0.7M N JCT STH 49, Fond du Lac, WI
Built 2003 ADT: 16,800
LRD OAK CENTER ROA
UnknownOver: USH 151
0.8M N JCT STH 49, Fond du Lac, WI
Built 2003 ADT: 16,800
CTH Y CAMPBELL R
UnknownOver: IH 41
1.4M N JCT STH 49, Fond du Lac, WI
Built 1995 ADT: 31,000
CTH B
UnknownOver: IH 41
2.4M N JCT CTH F, Fond du Lac, WI
Built 1996 ADT: 38,700
LRD LOST ARROW RD
UnknownOver: IH 41
1.6M N JCT CTH B, Fond du Lac, WI
Built 1996 ADT: 38,700
LRD SOUTH MAIN STR
UnknownOver: IH 41
3.7M N JCT CTH B, Fond du Lac, WI
Built 2005 ADT: 42,000
CN RAILROAD
UnknownOver: IH 41
AT INTERSECTION, Fond du Lac, WI
Built 2009 ADT: 37,500
LRD HICKORY ST.
UnknownOver: IH 41
0.9M N JCT STH 175 TO N, Fond du Lac, WI
Built 2009 ADT: 42,000
CTH D (MILITARY RD
UnknownOver: IH 41
151, Fond du Lac, WI
Built 2005 ADT: 42,900
USH 41 NB
UnknownOver: CTH N
TOWN OF ELDORADO, Fond du Lac, WI
Built 1999 ADT: 740
IH 41 SB
UnknownOver: CTH N
TOWN OF ELDORADO, Fond du Lac, WI
Built 1999 ADT: 740
LRD LINCOLN ROAD
UnknownOver: IH 41 NB
1.2M N JCT CTH N, Fond du Lac, WI
Built 2001 ADT: 42,900
USH 151 NB
UnknownOver: IH 41
XING OF USH 151 NB, Fond du Lac, WI
Built 2005 ADT: 37,500
USH 151 SB
UnknownOver: IH 41
151, Fond du Lac, WI
Built 2004 ADT: 3,750
USH 151 NB
UnknownOver: STH 26
AT USH 151, Fond du Lac, WI
Built 2003 ADT: 350
USH 151 SB
UnknownOver: STH 26
151, Fond du Lac, WI
Built 2003 ADT: 350
STH USH 151 NB OFF
UnknownOver: STH 26
26, Fond du Lac, WI
Built 2003 ADT: 350
USH 151 NB
UnknownOver: STH USH 151 NB TO STH 26
AT NB USH 151, Fond du Lac, WI
Built 2003 ADT: 4,700
USH 151 SB
UnknownOver: STH USH 151 NB TO STH 26
151, Fond du Lac, WI
Built 2003 ADT: 4,700
USH 151 SB OFF RAM
UnknownOver: STH USH 151 NB TO STH 26
2.0M S JCT CTH Y, Fond du Lac, WI
Built 2003 ADT: 4,700
USH 45
UnknownOver: USH 151
45, Fond du Lac, WI
Built 2004 ADT: 15,100
USH 151 NB
UnknownOver: STH 23
AT USH 151, Fond du Lac, WI
Built 2003 ADT: 21,600
USH 151 SB
UnknownOver: STH 23
AT USH 151, Fond du Lac, WI
Built 2003 ADT: 21,600
CTH Y
UnknownOver: USH 151
0.7M N JCT CTH TC, Fond du Lac, WI
Built 2005 ADT: 13,500
CTH D NB
UnknownOver: USH 151
CTH D, Fond du Lac, WI
Built 2006 ADT: 13,500
CTH D SB
UnknownOver: USH 151
CTH D, Fond du Lac, WI
Built 2006 ADT: 13,500
USH 151 NB
UnknownOver: LRD RIVER RD
AT INTERSECTION, Fond du Lac, WI
Built 2008 ADT: 550
USH 151 SB
UnknownOver: LRD RIVER RD
AT INTERSECTION, Fond du Lac, WI
Built 2008 ADT: 550
LRD HICKORY ST
UnknownOver: USH 151
AT INTERSECTION, Fond du Lac, WI
Built 2007 ADT: 10,900
CANADIAN NATIONAL
UnknownOver: USH 151
AT INTERSECTION, Fond du Lac, WI
Built 2007 ADT: 10,900
WILD GOOSE TRAIL
UnknownOver: IH 41
AT INTERSECTION, Fond du Lac, WI
Built 2009 ADT: 42,000
STH 23 EB
UnknownOver: IH 41
AT INTERSECTION, Fond du Lac, WI
Built 2008 ADT: 44,700
STH 23 WB
UnknownOver: IH 41
AT INTERSECTION, Fond du Lac, WI
Built 2008 ADT: 44,700
STH 23 WB
UnknownOver: CTH K
AT STH 23 WB, Fond du Lac, WI
Built 2022 ADT: 4,900
STH 23 EB
UnknownOver: CTH K
ROUGHLY .8 MILES EAST OF, Fond du Lac, WI
Built 2021 ADT: 4,900
CTH UU
UnknownOver: STH 23
AT CTH UU, Fond du Lac, WI
Built 2022 ADT: 9,200
CANADIAN NATIONAL
UnknownOver: CTH VV (PIONEER RD)
0.4M N JCT W SCOTT ST, Fond du Lac, WI
Built 2013 ADT: 15,000
CTH G
UnknownOver: STH 23 EB
AT CTH G, Fond du Lac, WI
Built 2021 ADT: 6,600
CTH V
UnknownOver: USH 151
0.5 MI E JCT MARTIN RD, Fond du Lac, WI
Built 2016 ADT: 18,700
CTH T
UnknownOver: USH 151
0.5M N CTH V, Fond du Lac, WI
Built 2016 ADT: 16,800
Showing 801-850 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 |