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
LRD BIRD ST
UnknownOver: USH 151
0.6M N JCT STH 19 TO E, Dane, WI
Built 1969 ADT: 35,800
USH 151 NB
UnknownOver: LRD COLUMBUS ST
1.5M N JCT STH 19, Dane, WI
Built 1970 ADT: 4,600
USH 151 SB
UnknownOver: LRD COLUMBUS ST
1.5M N JCT STH 19, Dane, WI
Built 1970 ADT: 4,600
USH 151 NB
UnknownOver: CTH VV (TWIN LANE RD)
TOWN OF BRISTOL, Dane, WI
Built 1990 ADT: 800
USH 151 SB
UnknownOver: CTH VV
2.0M S JCT CTH V, Dane, WI
Built 1991 ADT: 880
CTH VV (ELDER LANE
UnknownOver: USH 151
2.2M N JCT CTH N, Dane, WI
Built 1991 ADT: 25,600
CTH V
UnknownOver: USH 151
2.4M N JCT CTH VV, Dane, WI
Built 1991 ADT: 24,700
IH 90 WB-IH 94 WB
UnknownOver: CTH T
1.0M E JCT STH 30, Dane, WI
Built 1997 ADT: 5,800
LRD DEANSVILLE RD
UnknownOver: USH 151
2.0M N JCT CTH V, Dane, WI
Built 1991 ADT: 24,500
USH 51 NB
UnknownOver: STH 19
1.0M E JCT IH 90 TO W, Dane, WI
Built 1971 ADT: 14,300
USH 51 SB
UnknownOver: STH 19
1.0M E JCT IH 90 TO W, Dane, WI
Built 1971 ADT: 14,300
USH 18 WB-USH 151
UnknownOver: LRD SAND ROCK RD
2.1M N JCT CTH JG, Dane, WI
Built 1984 ADT: 251
USH 18 EB/151 NB
UnknownOver: LRD SAND ROCK RD
2.1M N JCT CTH JG, Dane, WI
Built 1988 ADT: 251
CTH JG
UnknownOver: USH 18-USH 151
1.5M E JCT STH 78, Dane, WI
Built 1984 ADT: 18,000
USH 18 WB-USH 151
UnknownOver: STH 92
1.5M E JCT STH 78, Dane, WI
Built 1984 ADT: 1,800
USH 18 EB-USH 151
UnknownOver: STH 92
1.5M E JCT STH 78, Dane, WI
Built 1988 ADT: 1,800
CTH ID
UnknownOver: USH 18-USH 151
0.9M E JCT STH 92, Dane, WI
Built 1984 ADT: 20,700
STH 78
UnknownOver: USH 18-USH 151
0.6M E JCT CTH E TO S, Dane, WI
Built 1984 ADT: 17,800
IH 39 SB/IH 90 EB
UnknownOver: STH 30 WB
0.4M W JCT IH 94 TO W, Dane, WI
Built 1997 ADT: 20,950
IH 39 NB/90 WB
UnknownOver: IH RAMP IH 94 WB TO IH 9
0.2M W JCT IH 94 TO W, Dane, WI
Built 1997 ADT: 10,400
IH 90 WB
UnknownOver: STH 30 EB
1.9M E JCT USH 51 TO N, Dane, WI
Built 1997 ADT: 6,200
CTH MM - RIMROCK R
UnknownOver: USH 12/18-W BELTLINE
0.8M E JCT USH 151 TO N, Dane, WI
Built 1988 ADT: 120,000
LRD SOUTH TOWNE DR
UnknownOver: USH 12/18-S BELTLINE
0.8M E JCT CTH MC, Dane, WI
Built 1988 ADT: 127,500
USH 12/18 EB-S BEL
UnknownOver: CTH BB MONONA DR
0.5M S JCT BROADWAY ST, Dane, WI
Built 1988 ADT: 21,800
USH 12/18 WB-S BEL
UnknownOver: CTH BB MONONA DR
0.5M S JCT BROADWAY ST, Dane, WI
Built 1988 ADT: 21,800
USH 12 WB-USH 18 W
UnknownOver: USH 51
2.4M N JCT CTH MN, Dane, WI
Built 1988 ADT: 48,700
USH 12 EB-USH 18 E
UnknownOver: USH 51
2.3M N JCT CTH MN, Dane, WI
Built 1988 ADT: 48,700
STH 30 WB
UnknownOver: USH 51-STOUGHTON RD
4.2M N JCT USH 12 TO E, Dane, WI
Built 1996 ADT: 48,300
STH 30 EB
UnknownOver: USH 51-STOUGHTON RD
4.2M N JCT USH 12 TO E, Dane, WI
Built 1996 ADT: 27,250
USH 51 SB
UnknownOver: LRD MILWAUKEE ST
CITY OF MADISON, Dane, WI
Built 1996 ADT: 11,500
USH 51 NB
UnknownOver: LRD MILWAUKEE ST
CITY OF MADISON, Dane, WI
Built 1996 ADT: 11,500
IH 90 EB
UnknownOver: STH 30 EB
1.8M E JCT USH 51 TO N, Dane, WI
Built 1997 ADT: 23,300
PEDESTRIAN WALKWAY
UnknownOver: USH 51-STOUGHTON RD
3.5M N JCT USH 12 TO E, Dane, WI
Built 1979 ADT: 53,250
LRD TOWN HALL ROAD
UnknownOver: USH 18-USH 151
1.6M E JCT STH 92, Dane, WI
Built 1991 ADT: 23,200
LRD LUNDE LANE
UnknownOver: USH 18-USH 151
2.1M E JCT STH 92, Dane, WI
Built 1991 ADT: 23,200
CTH PD
UnknownOver: USH 18-USH 151
0.4M E JCT CTH P TO N, Dane, WI
Built 1991 ADT: 23,200
USH 18 WB-USH 151
UnknownOver: CTH J
1.7M N JCT CTH G, Dane, WI
Built 1991 ADT: 880
USH 51 NB
UnknownOver: LRD TAYLOR ST
0.6M N JCT CTH MN, Dane, WI
Built 1992 ADT: 819
USH 51 NB
UnknownOver: LRD SIGGELKOW RD
2.4M E JCT CTH AB, Dane, WI
Built 1992 ADT: 7,600
USH 51 SB
UnknownOver: LRD SIGGELKOW RD
2.4M E JCT CTH AB, Dane, WI
Built 1992 ADT: 7,600
USH 151 SB
UnknownOver: LRD AMERICAN PARKWAY
0.1M W JCT BURKE TWN RD, Dane, WI
Built 1991 ADT: 4,800
USH 151 NB
UnknownOver: LRD AMERICAN PARKWAY
0.1M W JCT BURKE TWN RD, Dane, WI
Built 1991 ADT: 4,800
USH 151 SB
UnknownOver: LRD DUAL RAMP
0.1M W JCT BURKE TWN RD, Dane, WI
Built 1991 ADT: 4,200
USH 151 NB
UnknownOver: LRD DUAL RAMP
0.1M W JCT BURKE TWN RD, Dane, WI
Built 1991 ADT: 4,200
USH 18 WB-USH 151
UnknownOver: LRD FITCHRONA RD
0.7M S JCT CTH PD, Dane, WI
Built 1994 ADT: 5,800
USH 18 EB-USH 151
UnknownOver: LRD FITCHRONA RD
0.7M S JCT CTH PD, Dane, WI
Built 1994 ADT: 5,800
IH RAMP IH 90 WB-S
UnknownOver: IH 90 EB
0.5M E JCT IH 94 TO E, Dane, WI
Built 1994 ADT: 54,500
CTH G
UnknownOver: USH 18-USH 151
2.7M E JCT CTH J, Dane, WI
Built 1993 ADT: 24,700
LRD RAMP W-1
UnknownOver: USH 18-USH 151
0.6M E JCT CTH G TO S, Dane, WI
Built 1995 ADT: 26,700
USH 18 EB-USH 151
UnknownOver: STH 69
3.5M N JCT CTH PB TO S, Dane, WI
Built 1994 ADT: 6,200
Showing 451-500 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 |