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
STH 100 NB-S 108TH
UnknownOver: IH 43 NB
6.4M N JCT CTH Y (D), Milwaukee, WI
Built 1965 ADT: 38,250
IH 43 SB-USH 45 SB
UnknownOver: STH 100 - S 108TH ST
0.2M N JCT USH 45 TO N, Milwaukee, WI
Built 1965 ADT: 22,000
IH 43 NB/USH 45 NB
UnknownOver: CTH Y (W LAYTON AVE)
0.2M E JCT STH 100, Milwaukee, WI
Built 1966 ADT: 14,100
IH 43 SB/USH 45 SB
UnknownOver: CTH Y (W LAYTON AVE)
0.2M E JCT STH 100, Milwaukee, WI
Built 1966 ADT: 14,100
10TH - VLIET ST PE
UnknownOver: STH 145
0.9M N JCT MILWAUKEE ST, Milwaukee, WI
Built 1969 ADT: 25,800
CNW RR
UnknownOver: STH 175-APPLETON AVE
2.7M N JCT STH 181, Milwaukee, WI
Built 1934 ADT: 15,700
STH 175-APPLETON A
UnknownOver: CTH E W SILVER SPRING DR
1.1M E JCT STH 100, Milwaukee, WI
Built 1967 ADT: 31,300
CNW RR
UnknownOver: STH 190-CAPITOL DR
7.3M E JCT STH 164 TO N, Milwaukee, WI
Built 1932 ADT: 51,900
LRD H DAVIDSON ACC
UnknownOver: STH 190 (CAPITOL DR)
7.5M E JCT STH 164 TO N, Milwaukee, WI
Built 1967 ADT: 26,800
IH INTERCHANGE RD
UnknownOver: STH 190 (CAPITOL DR)
7.5M E JCT STH 164 TO N, Milwaukee, WI
Built 1967 ADT: 51,900
IH INTERCHANGE RD
UnknownOver: STH 190 (CAPITOL DR)
7.6M E JCT STH 164 TO N, Milwaukee, WI
Built 1967 ADT: 51,900
IH 41/USH 45 SB
UnknownOver: RAMP, IH 41/USH 45 - STH
AT JCT USH 45-STH 190, Milwaukee, WI
Built 1967 ADT: 32,900
IH 41/USH 45 NB
UnknownOver: RAMP, IH 41/USH 45 - STH
AT JCT USH 45-STH 190, Milwaukee, WI
Built 1967 ADT: 5,800
STH 190 EB-CAPITOL
UnknownOver: LRD MENOMONEE RIVER PARK
0.4M W JCT STH 100, Milwaukee, WI
Built 1967 ADT: 3,200
STH 190 WB-CAPITOL
UnknownOver: LRD MENOMONEE RIVER PARK
0.4M W JCT STH 100, Milwaukee, WI
Built 1967 ADT: 3,200
IH 41/USH 45/STH 1
UnknownOver: STH 175 SB
1.1M S JCT CTH PP TO E, Milwaukee, WI
Built 1967 ADT: 8,100
IH 41/USH 45/STH 1
UnknownOver: STH 175 SB
1.1M S JCT CTH PP TO E, Milwaukee, WI
Built 1967 ADT: 4,050
IH 41/USH 45/STH 1
UnknownOver: CTH W MILL RD (CTH S)
2.4M W JCT STH 181, Milwaukee, WI
Built 1967 ADT: 4,200
IH 41/USH 45/STH 1
UnknownOver: CTH W MILL RD (CTH S)
2.4M W JCT STH 181, Milwaukee, WI
Built 1967 ADT: 4,200
IH 41/USH 45/STH10
UnknownOver: STH 175 NB-SOUTH INTRCH
0.5M N JCT USH 45, Milwaukee, WI
Built 1967 ADT: 7,400
IH 41/USH45/STH 10
UnknownOver: STH 175 NB
0.5M N JCT USH 45, Milwaukee, WI
Built 1967 ADT: 7,400
STH 175 SB (W APPL
UnknownOver: CTH W MILL RD (CTH S)
2.5M W JCT STH 181, Milwaukee, WI
Built 1967 ADT: 4,300
STH 175 NB (W. APP
UnknownOver: LRD W MILL RD (CTH S)
2.4M W JCT STH 181, Milwaukee, WI
Built 1967 ADT: 4,300
IH 41/USH 45 SB-ZO
UnknownOver: LRD W BURLEIGH ST
0.4M W JCT STH 100, Milwaukee, WI
Built 1967 ADT: 18,300
IH 41NB-ZOO FREEWA
UnknownOver: LRD W BURLEIGH ST
0.4M W JCT STH 100, Milwaukee, WI
Built 1967 ADT: 18,300
CTH EE - W HAMPTON
UnknownOver: IH 41/USH 45-ZOO FREEWAY
1.2M N JCT STH 190 TO E, Milwaukee, WI
Built 1967 ADT: 147,000
IH 41/USH 45 SB-ZO
UnknownOver: STH 100 SB-SILVER SPRING
1.5 MI S JCT USH 41, Milwaukee, WI
Built 1967 ADT: 27,000
IH 41/USH 45 NB-ZO
UnknownOver: STH 100 SB-SILVER SPRING
1.5M S JCT USH 41 (G), Milwaukee, WI
Built 1967 ADT: 26,800
LRD W FLORIST AVE
UnknownOver: IH 41/USH 45/STH 100
2.7M N JCT STH 190 TO E, Milwaukee, WI
Built 1967 ADT: 125,150
LRD S 124TH ST
UnknownOver: IH-43
5.3M N JCT CTH Y, Milwaukee, WI
Built 1968 ADT: 46,500
LRD S 116TH ST
UnknownOver: IH 43
5.8M N JCT CTH Y, Milwaukee, WI
Built 1967 ADT: 56,000
STH 181-N 76TH ST
UnknownOver: LRD W DOUGLAS AVE
AT JCT WITH STH 181, Milwaukee, WI
Built 1968 ADT: 2,002
CMSTPP RR
UnknownOver: STH 181-N 76TH ST
2.1M N JCT STH 145 TO N, Milwaukee, WI
Built 1968 ADT: 28,100
CMSTPP RR
UnknownOver: CTH BB W RAWSON AVE
0.4M E JCT CTH V, Milwaukee, WI
Built 1968 ADT: 25,900
CNW RR
UnknownOver: LRD W SILVER SPRING DR
0.1M E JCT STH 57, Milwaukee, WI
Built 1970 ADT: 26,400
CTH BB - W RAWSON
UnknownOver: STH 36-LOOMIS RD
2.3M N JCT STH 100, Milwaukee, WI
Built 1968 ADT: 14,900
IH 41/USH 45/STH10
UnknownOver: STH 145
0.2M N JCT CTH PP, Milwaukee, WI
Built 2000 ADT: 19,500
IH 41/USH 45/STH 1
UnknownOver: STH 145
0.5M N JCT CTH PP, Milwaukee, WI
Built 2000 ADT: 19,500
IH 41/45 NB
UnknownOver: STH 145 (124 TH STREET)
1.1M N JCT CTHPP, Milwaukee, WI
Built 2000 ADT: 14,000
IH 41/USH 45/STH 1
UnknownOver: STH 145 (124 TH STREET)
1.1M N JCT CTHPP, Milwaukee, WI
Built 2000 ADT: 14,000
IH RAMP, IH 41/USH
UnknownOver: STH 145/124TH ST
1.1M N JCT CTH PP, Milwaukee, WI
Built 2001 ADT: 11,700
IH RAMP, LINCOLN M
UnknownOver: IH RAMP N JACKSON ST-IH
0.4M S JCT STH 32, Milwaukee, WI
Built 1975 ADT: 15,700
IH 794 WB-LAKE INT
UnknownOver: LRD N JACKSON ST
0.4M S JCT STH 32, Milwaukee, WI
Built 1975 ADT: 8,200
IH 794 WB-LAKE INT
UnknownOver: IH RAMP, IH 794 EB-JACK
CITY OF MILWAUKEE, Milwaukee, WI
Built 1975 ADT: 15,300
IH 794 WB-LAKE INT
UnknownOver: IH RAMP, IH 794 EB-LINC
CITY OF MILWAUKEE, Milwaukee, WI
Built 1974 ADT: 13,300
IH-794 WB-LAKE INT
UnknownOver: IH-794 EB ENTRANCE RAMP
0.1 MI S JCT E CLYBOURN S, Milwaukee, WI
Built 1975 ADT: 13,300
IH 794 WB-LAKE INT
UnknownOver: IH RAMP, LINCOLN MEMORIA
CITY OF MILWAUKEE, Milwaukee, WI
Built 1975 ADT: 13,300
IH 794 WB-LAKE INT
UnknownOver: LRD CHICAGO ST
AT IH 794 WB, Milwaukee, WI
Built 1975 ADT: 1,800
IH 794 EB
UnknownOver: STH 32/MILWAUKEE ST
0.3M N JCT USH 18 TO E, Milwaukee, WI
Built 1974 ADT: 12,700
IH 794 EB
UnknownOver: LRD N JACKSON ST
0.4M S JCT STH 32, Milwaukee, WI
Built 1974 ADT: 8,200
Showing 1,501-1,550 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 |