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 39 SB / IH 90 E
UnknownOver: USH 14
0.7M E JCT STH 26, Rock, WI
Built 2021 ADT: 28,800
IH 39 NB / IH 90 W
UnknownOver: USH 14
0.7M E JCT STH 26, Rock, WI
Built 2020 ADT: 28,800
CMSTPP RR
UnknownOver: USH 51
4.5M N JCT STH 81, Rock, WI
Built 1938 ADT: 8,240
IH 39 NB / IH 90 W
UnknownOver: LRD RYAN ROAD
0.2 MI E JCT MORSE ST, Rock, WI
Built 2020 ADT: 4,500
IH 39 SB / IH 90 E
UnknownOver: STH 26-MILTON AVE
0.4M N JCT USH 14, Rock, WI
Built 2021 ADT: 32,680
IH 39 NB / IH 90 W
UnknownOver: STH 26-MILTON AVE
0.4M N JCT USH 14, Rock, WI
Built 2020 ADT: 32,680
IH 39 SB / IH 90 E
UnknownOver: LRD KENNEDY RD & BIKE PA
0.9M N JCT USH 14, Rock, WI
Built 2021 ADT: 3,670
IH 39 NB / IH 90 W
UnknownOver: LRD KENNEDY RD
0.9M N JCT USH 14, Rock, WI
Built 2020 ADT: 3,670
IH 39SB/90 EB
UnknownOver: LRD TOWN LINE RD
1.7M W JCT CTH Y, Rock, WI
Built 2019 ADT: 1,600
IH 39 NB / IH 90 W
UnknownOver: LRD TOWN LINE RD
1.7M W JCT CTH Y, Rock, WI
Built 2020 ADT: 1,580
LRD MANOGUE ROAD
UnknownOver: IH 39 / IH 90
3.6M N JCT STH 26, Rock, WI
Built 2017 ADT: 53,500
IH 39 SB / IH 90 E
UnknownOver: CTH M
2.1M W JCT STH 59, Rock, WI
Built 2019 ADT: 1,300
IH 39NB/90 WB
UnknownOver: CTH M
2.1M W JCT STH 59, Rock, WI
Built 2020 ADT: 1,100
IH 39/90 SB/EB
UnknownOver: LRD NEWVILLE RD
1.2M N JCT CTH M, Rock, WI
Built 2019 ADT: 1,200
IH 39 NB/ IH 90 WB
UnknownOver: LRD NEWVILLE RD
1.2M N JCT CTH M, Rock, WI
Built 2020 ADT: 1,200
IH39SB/IH90EB
UnknownOver: ROCK RIVER / ELLENDALE R
0.1M N JCT STH 59, Rock, WI
Built 2018 ADT: 1,750
IH 39 NB
UnknownOver: ROCK RIVER
0.3 MI W JCT STH 59, Rock, WI
Built 2016 ADT: 1,750
STH 59
UnknownOver: IH 39
8.2 M N JCT STH 26, Rock, WI
Built 2016 ADT: 59,100
IH-39 SB/90 EB
UnknownOver: LRD RYAN ROAD
0.2 MI E JCT MORSE ST, Rock, WI
Built 2021 ADT: 4,540
BELOIT COLLEGE POW
UnknownOver: USH 51
99990000000 004, Rock, WI
CMSTPP RR
UnknownOver: USH 51-N PARKER DR
0.2M N JCT STH 26, Rock, WI
Built 1942 ADT: 12,480
CNW RR
UnknownOver: CTH E
1.2M S JCT USH 14, Rock, WI
Built 1902 ADT: 2,550
CNW RR
UnknownOver: LRD CAINVILLE RD
0.6M S JCT CTH A, Rock, WI
Built 1900 ADT: 75
CNW RR
UnknownOver: CTH J
0.7M N JCT CTH X, Rock, WI
Built 1905 ADT: 900
CMSTPP RR
UnknownOver: LRD CROSBY RD
0.2M S JCT STH 11, Rock, WI
Built 1900 ADT: 225
CMSTPP RR
UnknownOver: LRD CARVERS RD
2.7M S JCT USH 14, Rock, WI
Built 1906 ADT: 75
CMSTPP RR
UnknownOver: LRD MILTON RD
0.7M S JCT USH 14, Rock, WI
Built 1907 ADT: 150
CMSTPP RR
UnknownOver: LRD PRAIRIE AVE
0.3M E JCT USH 51, Rock, WI
Built 1930 ADT: 150
CNW RR
UnknownOver: CTH J
1.1M E JCT CTH S, Rock, WI
Built 1905 ADT: 610
CNW RR
UnknownOver: LRD ROCKPORT RD
0.3M W JCT USH 51, Rock, WI
Built 1900 ADT: 5,380
CMSTPP RR
UnknownOver: LRD ROCKPORT RD
0.1M W JCT USH 51, Rock, WI
Built 1907 ADT: 5,380
CNW RR
UnknownOver: LRD FRANKLIN ST
0.1M N JCT USH 51, Rock, WI
Built 1938 ADT: 4,540
CMSTPP RR
UnknownOver: LRD N MAIN ST
0.1M N JCT USH 51, Rock, WI
Built 1890 ADT: 4,500
CNW RR
UnknownOver: LRD N RIVER ST
0.1M N JCT USH 51, Rock, WI
Built 1925 ADT: 4,000
CMSTPP RR
UnknownOver: LRD RIVERSIDE ST
0.2M W JCT USH 51, Rock, WI
Built 1900 ADT: 1,600
CNW RR
UnknownOver: LRD RIVERSIDE ST
0.1M W JCT USH 51, Rock, WI
Built 1907 ADT: 1,600
CNW RR
UnknownOver: LRD ELGIN AVE
1.0M W JCT USH 51, Rock, WI
Built 1901 ADT: 800
SOO LINE
UnknownOver: LRD LUDWIGSON ST
0.2M E JCT CTH G, Rusk, WI
Built 1945 ADT: 600
IH 90 EB-IH 94 EB
UnknownOver: LRD SCHEPP RD
0.6M N JCT CTH U, Sauk, WI
Built 1961 ADT: 110
IH 90 WB-IH 94 WB
UnknownOver: LRD SCHEPPS RD
0.6M N JCT CTH U, Sauk, WI
Built 1961 ADT: 110
LRD VAN HOOSEN RD
UnknownOver: IH 90-IH 94
6.2M E JCT USH 12 TO E, Sauk, WI
Built 1961 ADT: 39,500
CTH T
UnknownOver: IH 90-IH 94
5.2M E JCT USH 12 TO E, Sauk, WI
Built 1961 ADT: 39,500
LRD GILLEM RD
UnknownOver: IH 90-IH 94
3.4M E JCT USH 12 TO E, Sauk, WI
Built 1960 ADT: 39,500
IH 90 EB-IH 94 EB
UnknownOver: USH 12
1.8M E JCT STH 23 (B), Sauk, WI
Built 1960 ADT: 16,300
IH 90 WB-IH 94 WB
UnknownOver: USH 12
1.8M E JCT STH 23 (B), Sauk, WI
Built 1960 ADT: 13,600
CTH A
UnknownOver: IH 90-IH 94
2.3M E JCT USH 12 (B), Sauk, WI
Built 1960 ADT: 39,500
IH 90 EB-IH 94 EB
UnknownOver: CTH H
0.5M W JCT STH 13, Sauk, WI
Built 1960 ADT: 2,900
IH 90 WB-IH 94 WB
UnknownOver: CTH H
0.5M W JCT STH 13, Sauk, WI
Built 1961 ADT: 2,900
IH 90 EB-IH 94 EB
UnknownOver: STH 13
0.3M N JCT IH 90 TO E, Sauk, WI
Built 1961 ADT: 4,320
IH 90 WB-IH 94 WB
UnknownOver: STH 13 NB
0.4M N JCT IH 90 TO E, Sauk, WI
Built 1961 ADT: 4,320
Showing 2,251-2,300 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 |