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 MILL CREEK RD
FairOver: MINERAL POINT BRANCH
0.9M E JCT CTH Q, Iowa, WI
Built 1983 Load: 27.5 t ADT: 130
USH 2 WB
FairOver: MONTREAL RIVER
MICHIGAN STATE LINE, Iron, WI
Built 1961 Load: 27.5 t ADT: 2,600
CTH K
FairOver: MORRISON CREEK
4.1M N JCT STH 54, Jackson, WI
Built 1978 Load: 27.5 t ADT: 1,100
LRD LINCOLN ROAD
FairOver: TREMPEALEAU RIVER
0.2M S JCT STH 95, Jackson, WI
Built 1978 Load: 27.5 t ADT: 47
STH 19
FairOver: CRAWFISH RIVER
0.2M E JCT CTH G, Jefferson, WI
Built 1976 Load: 27.5 t ADT: 3,600
LRD SKI-SLIDE RD
FairOver: ASHIPPUN RIVER
0.5M S JCT CTH CW, Jefferson, WI
Built 1988 Load: 27.5 t ADT: 400
CTH N
FairOver: BARK RIVER
0.8M N JCT CTH M, Jefferson, WI
Built 1939 Load: 27.5 t ADT: 3,500
LRD FRIENDSHIP RD
FairOver: YELLOW RIVER OVERFLOW
0.1M S JCT STH 21, Juneau, WI
Built 1930 Load: 27.5 t ADT: 13
CTH AB
FairOver: RED RIVER
2.2M N JCT CTH S, Kewaunee, WI
Built 1961 Load: 27.5 t ADT: 305
LRD RENDEZVOUS RD
FairOver: SCHOOL CREEK
0.2M N JCT STH 54, Kewaunee, WI
Built 1984 Load: 27.5 t ADT: 145
STH 162
FairOver: DUTCH CREEK
1.5M N JCT STH 33 TO E, La Crosse, WI
Built 1952 Load: 27.5 t ADT: 1,600
CTH B / CLINTON ST
FairOver: BLACK RIVER
0.1M W JCT USH 53, La Crosse, WI
Built 1981 Load: 27.5 t ADT: 7,300
CTH E
FairOver: BURNS CREEK
0.5M S JCT STH 162, La Crosse, WI
Built 1978 Load: 27.5 t ADT: 394
USH 53
FairOver: BLACK RIVER
0.8M N JCT CTH T (C), La Crosse, WI
Built 1982 Load: 27.5 t ADT: 7,900
STH 16 WB
FairOver: CMSTP&P RR
0.4M W JCT STH 157, La Crosse, WI
Built 1986 Load: 27.5 t ADT: 17,500
CTH K
FairOver: COPPER CREEK
6.5M E JCT STH 23, Lafayette, WI
Built 1985 Load: 27.5 t ADT: 373
CTH I
FairOver: BR MADDEN BRANCH
0.8M S JCT STH 81, Lafayette, WI
Built 1976 Load: 27.5 t ADT: 282
CTH O
FairOver: WOOD BRANCH
0.9M S JCT CTH Z, Lafayette, WI
Built 1966 Load: 27.5 t ADT: 176
LRD APPLE BRANCH R
FairOver: APPLE BRANCH
2.2M E JCT STH 81, Lafayette, WI
Built 1964 Load: 27.5 t ADT: 23
LRD ROLLER COASTER
FairOver: PECATONICA RIVER
1.7M W JCT STH 81, Lafayette, WI
Built 1980 Load: 27.5 t ADT: 88
CTH F
FairOver: MCCLINTOCK CREEK
0.1M W JCT CTH N TO S, Lafayette, WI
Built 1936 Load: 27.5 t ADT: 352
LRD PIER ST
FairOver: PRAIRIE RIVER
0.5M N JCT STH 64, Lincoln, WI
Built 1969 Load: 27.5 t ADT: 2,800
LRD DUGINSKI RD
FairOver: PRAIRIE RIVER
1.0M N JCT STH 64, Lincoln, WI
Built 1976 Load: 27.5 t ADT: 617
CTH E
FairOver: WISCONSIN RIVER 40
0.1M W JCT STH 107, Lincoln, WI
Built 1978 Load: 27.5 t ADT: 222
CTH C
FairOver: MEADOW CREEK
0.3M E. JCT USH 51, Lincoln, WI
Built 1969 Load: 27.5 t ADT: 262
CTH X
FairOver: PINE RIVER
1.0M N JCT STH 64, Lincoln, WI
Built 1973 Load: 27.5 t ADT: 420
USH 151
FairOver: SILVER CREEK
4.5M N JCT CTH S, Manitowoc, WI
Built 1977 Load: 27.5 t ADT: 6,200
IH 43 SB-USH 10 EB
FairOver: MANITOWOC RIVER
2.0M S JCT STH 310, Manitowoc, WI
Built 1979 Load: 27.5 t ADT: 11,100
IH 43 NB-USH 10 WB
FairOver: MANITOWOC RIVER
4.1M N JCT USH 151, Manitowoc, WI
Built 1979 Load: 27.5 t ADT: 11,100
LRD COUNTY LINE RD
FairOver: MEEME RIVER
1.2M E JCT STH 42, Manitowoc, WI
Built 1963 Load: 27.5 t ADT: 205
USH STH 52 WB - US
FairOver: WISCONSIN RIVER 32
0.6M N JCT STH 52 TO E, Marathon, WI
Built 1983 Load: 27.5 t ADT: 27,160
LRD BUFFALO RIDGE
FairOver: TRAPPE RIVER
1.9M E JCT CTH WW, Marathon, WI
Built 1960 Load: 27.5 t ADT: 45
LRD TRAPPE RIVER R
FairOver: TRAPPE RIVER
1.3M W JCT CTH J, Marathon, WI
Built 1963 Load: 27.5 t ADT: 85
LRD DRAPER RD
FairOver: W BR BIG EAU PLEINE RIVE
2.0M E JCT STH 13, Marathon, WI
Built 1962 Load: 27.5 t ADT: 90
LRD GIERL RD
FairOver: EAU PLEINE RIVER
0.4M N JCT STH 29, Marathon, WI
Built 1965 Load: 27.5 t ADT: 30
LRD SOUTH RD
FairOver: BR BIG RIB RIVER
0.9M E JCT CTH B, Marathon, WI
Built 1938 Load: 27.5 t ADT: 22
LRD SODA CREEK RD
FairOver: SODA CREEK
0.2M W JCT CTH S, Marathon, WI
Built 1973 Load: 27.5 t ADT: 90
LRD BLUEBERRY RD
FairOver: HAMAN CREEK
1.2M W JCT STH 97, Marathon, WI
Built 1974 Load: 27.5 t ADT: 45
LRD STAADT RD
FairOver: NOISY CREEK
0.4M N JCT STH 153, Marathon, WI
Built 1973 Load: 27.5 t ADT: 58
LRD EAU PLEINE ST
FairOver: DENNY CREEK
1.6M E JCT CTH M, Marathon, WI
Built 1973 Load: 27.5 t ADT: 45
LRD FOLZ RD
FairOver: WILD CREEK
0.9M S JCT CTH C, Marathon, WI
Built 1975 Load: 27.5 t ADT: 50
CTH Q
FairOver: LITTLE SANDY CREEK
0.7M S JCT CTH Z, Marathon, WI
Built 1972 Load: 27.5 t ADT: 600
USH 8
FairOver: N BR PIKE RIVER
7.8M E JCT CTH H, Marinette, WI
Built 1931 Load: 27.5 t ADT: 1,100
LRD SMEESTER SCHOO
FairOver: N BR PIKE RIVER
0.4M W JCT USH 141, Marinette, WI
Built 1974 Load: 27.5 t ADT: 100
CTH IRR (CTH M)
FairOver: WOLF RIVER
0.2M W JCT STH 55, Menominee, WI
Built 1979 Load: 27.5 t ADT: 117
LRD SILVER SPRING
FairOver: LITTLE MENOMONEE RIVER
0.5M E JCT STH 100, Milwaukee, WI
Built 1964 Load: 27.5 t ADT: 31,300
LRD SILVER SPRING
FairOver: LITTLE MENOMONEE RIVER
0.5M E JCT STH 100, Milwaukee, WI
Built 1964 Load: 27.5 t ADT: 15,650
IH 94 WB-IH 43 NB
FairOver: BURNHAMS CANAL
5.4M N JCT IH 894, Milwaukee, WI
Built 1968 Load: 27.5 t ADT: 78,000
STH 100-MAYFAIR RD
FairOver: CMSTPP RR
0.9 MI N JCT USH 18, Milwaukee, WI
Built 1972 Load: 27.5 t ADT: 29,200
STH 100 EB-BROWN D
FairOver: MILWAUKEE RIVER
0.2M E JCT STH 57, Milwaukee, WI
Built 1979 Load: 27.5 t ADT: 12,450
Showing 4,601-4,650 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 |