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
USH 12/STH 67
PoorOver: SUGAR CREEK
0.6 MI E JCT CTH A, Walworth, WI
Built 1966 Load: 34.0 t ADT: 9,900
CTH J
PoorOver: LITTLE ROCHE A CRI CREEK
2.2M W JCT CTH N, Adams, WI
Built 1950 Load: 35.6 t ADT: 1,100
LRD GRAND VIEW RD
PoorOver: BAIRD CREEK
1.7M S JCT STH 54, Brown, WI
Built 1970 Load: 35.6 t ADT: 323
STH 35
PoorOver: SLOUGH
1.7M N JCT STH 25 TO N, Buffalo, WI
Built 1933 Load: 35.6 t ADT: 2,100
STH 35
PoorOver: SLOUGH
2.0M N JCT STH 25 TO N, Buffalo, WI
Built 1933 Load: 35.6 t ADT: 2,100
CTH X
PoorOver: BLACK RIVER
0.9M E JCT CTH O TO S, Clark, WI
Built 1993 Load: 35.6 t ADT: 935
LRD BADGER AVE
PoorOver: DILL CREEK
1.3M S JCT STH 29, Clark, WI
Built 1969 Load: 35.6 t ADT: 116
CTH Y
PoorOver: E BR FOND DU LAC RIVER
2.0M N JCT CTH B, Fond du Lac, WI
Built 1981 Load: 35.6 t ADT: 460
CTH KK
PoorOver: W BR BLUE MOUNDS CREEK
0.1M E JCT CTH K, Iowa, WI
Built 1972 Load: 35.6 t ADT: 315
IH 94 WB
PoorOver: UNION PACIFIC RR
10.0M W JCT CTH O TO S, Jackson, WI
Built 1968 Load: 35.6 t ADT: 12,200
CTH A
PoorOver: PIKE RIVER
0.1M W JCT CTH G, Kenosha, WI
Built 1978 Load: 35.6 t ADT: 2,600
LRD CLUB HOUSE RD
PoorOver: EAU CLAIRE RIVER
1.2M N JCT STH 29, Marathon, WI
Built 1981 Load: 35.6 t ADT: 90
LRD FERNDALE RD
PoorOver: PESHTIGO RIVER
2.5M N JCT STH 64, Marinette, WI
Built 1990 Load: 35.6 t ADT: 201
IH 43 NB
PoorOver: ROOT RIVER MARSH
0.7 MI NORTH JCT STH 100/, Milwaukee, WI
Built 1966 Load: 35.6 t ADT: 18,200
LRD S 16TH ST
PoorOver: CMSTP&P RR
0.8M N JCT STH 59, Milwaukee, WI
Built 1929 Load: 35.6 t ADT: 6,280
LRD S 16TH ST
PoorOver: CMSTP&P RR
0.8M N JCT STH 59, Milwaukee, WI
Built 1929 Load: 35.6 t ADT: 6,280
LRD S 16TH ST
PoorOver: LAND
0.8M N JCT STH 59, Milwaukee, WI
Built 1929 Load: 35.6 t ADT: 6,280
LRD S 16TH ST
PoorOver: LAND
0.8M N JCT STH 59, Milwaukee, WI
Built 1929 Load: 35.6 t ADT: 6,280
LRD S 16TH ST
PoorOver: LAND
0.8M N JCT STH 59, Milwaukee, WI
Built 1929 Load: 35.6 t ADT: 6,280
LRD S 16TH ST
PoorOver: LAND
0.8M N JCT STH 59, Milwaukee, WI
Built 1929 Load: 35.6 t ADT: 9,300
LRD S 16TH ST
PoorOver: LAND
0.8M N JCT STH 59, Milwaukee, WI
Built 1929 Load: 35.6 t ADT: 9,300
LRD S 16TH ST
PoorOver: LAND
0.8M N JCT STH 59, Milwaukee, WI
Built 1929 Load: 35.6 t ADT: 9,300
LRD S 16TH ST
PoorOver: LAND
0.8M N JCT STH 59, Milwaukee, WI
Built 1929 Load: 35.6 t ADT: 9,200
CTH Y
PoorOver: TOMAHAWK RIVER
8.5M S JCT USH 51, Oneida, WI
Built 1984 Load: 35.6 t ADT: 374
CTH W
PoorOver: HARVEY CREEK
1.4 N JCT STH 10, Pepin, WI
Built 1977 Load: 35.6 t ADT: 150
LRD 5TH STREET
PoorOver: APPLE RIVER
0.7M E JCT CTH T, Polk, WI
Built 1977 Load: 35.6 t ADT: 43
CTH G
PoorOver: ROOT RIVER CANAL
0.5M E JCT CTH U, Racine, WI
Built 1949 Load: 35.6 t ADT: 1,802
LRD CEDAR ST
PoorOver: SUCKER CREEK
1.1M E JCT CTH D, Sawyer, WI
Built 1936 Load: 35.6 t ADT: 1,887
USH 63
PoorOver: BR WILLOW RIVER
0.5M N JCT STH 64 TO E, St. Croix, WI
Built 1962 Load: 35.6 t ADT: 4,800
USH 12
PoorOver: CNW RR
3.2M E JCT CTH U (J), St. Croix, WI
Built 1980 Load: 35.6 t ADT: 2,400
LRD GRAVEL LANE
PoorOver: BLACK RIVER
0.9M W JCT STH 13, Taylor, WI
Built 1981 Load: 35.6 t ADT: 139
CTH BB
PoorOver: BORST VALLEY CREEK
0.1M N JCT STH 121, Trempealeau, WI
Built 1968 Load: 35.6 t ADT: 50
STH 162-N RIDGE RD
PoorOver: BR COON CREEK
0.4M N JCT USH 14 TO E, Vernon, WI
Built 1927 Load: 35.6 t ADT: 650
CTH I
PoorOver: MUKWONAGO RIVER
0.1M S JCT CTH LO, Waukesha, WI
Built 1981 Load: 35.6 t ADT: 1,200
STH 169
PoorOver: BAD RIVER
0.4M N JCT STH 13, Ashland, WI
Built 1987 Load: 37.3 t ADT: 500
LRD EVERGREEN RD
PoorOver: KOLIN CREEK
2.6M W JCT CTH A, Bayfield, WI
Built 1950 Load: 37.3 t ADT: 65
CTH S
PoorOver: DUNCAN CREEK
0.5 M E CTH Q, Chippewa, WI
Built 1978 Load: 37.3 t ADT: 5,515
STH 98-ELM DR
PoorOver: BEAR CREEK
0.5M E JCT CTH K TO S, Clark, WI
Built 1920 Load: 37.3 t ADT: 3,300
CTH E
PoorOver: N. FK. POPPLE RIVER
0.3M N JCT CTH A, Clark, WI
Built 1995 Load: 37.3 t ADT: 979
LRD JOHN NOLEN DR
PoorOver: LAKE MONONA
0.7M N JCT CTH MC, Dane, WI
Built 1975 Load: 37.3 t ADT: 43,200
LRD JOHN NOLEN DR
PoorOver: LAKE MONONA
0.7M N JCT CTH MC, Dane, WI
Built 1966 Load: 37.3 t ADT: 36,900
LRD JOHN NOLEN DR
PoorOver: LAKE MONONA
0.1 M S JCT USH 151, Dane, WI
Built 1968 Load: 37.3 t ADT: 36,900
CTH HH
PoorOver: SPRING CREEK
0.22M E OF CTH H-NORTH, Dunn, WI
Built 1937 Load: 37.3 t ADT: 50
LRD NEFF RD
PoorOver: FENNIMORE CREEK
0.1M W JCT CTH Q, Grant, WI
Built 1973 Load: 37.3 t ADT: 102
CTH A
PoorOver: PIKE RIVER
0.1M E JCT STH 31, Kenosha, WI
Built 1978 Load: 37.3 t ADT: 2,600
CTH BB
PoorOver: N BR E TWIN RIVER
0.8M W JCT CTH B, Kewaunee, WI
Built 1978 Load: 37.3 t ADT: 1,200
LRD LINCOLN DR
PoorOver: LITTLE RIB RIVER
1.3M W JCT CTH O, Marathon, WI
Built 1991 Load: 37.3 t ADT: 63
STH 181 NB-N 76TH
PoorOver: CNW RR
1.2M N JCT CTH PP, Milwaukee, WI
Built 1969 Load: 37.3 t ADT: 11,750
STH 181-S 84TH ST
PoorOver: HONEY CREEK
0.2M N JCT IH 94 TO E, Milwaukee, WI
Built 1934 Load: 37.3 t ADT: 13,800
LRD N 25TH STREET
PoorOver: MENOMONEE RIVER
0.8M S JCT USH 18, Milwaukee, WI
Built 1980 Load: 37.3 t ADT: 8,800
Showing 14,551-14,600 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 |