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 LAKE SHORE RD
FairOver: TRIB LAKE MICHIGAN
2.2M E JCT STH 42, Manitowoc, WI
Built 1970 Load: 32.4 t ADT: 47
STH 29
FairOver: BROD CREEK
0.3M E JCT STH 97, Marathon, WI
Built 1957 Load: 32.4 t ADT: 13,700
CTH N
FairOver: BR BIG SANDY CREEK
2.3M W JCT CTH SS, Marathon, WI
Built 1962 Load: 32.4 t ADT: 3,699
STH 153-MAIN ST
FairOver: WISCONSIN RIVER 25
0.2M E JCT CTH B, Marathon, WI
Built 1963 Load: 32.4 t ADT: 13,100
USH B51-GRAND AVE
FairOver: WISCONSIN CENTRAL LTD
2.9M N JCT STH 29 TO E, Marathon, WI
Built 1964 Load: 32.4 t ADT: 31,844
STH 97-WEBER AVE
FairOver: BR BIG EAU PLEINE RIVER
3.8M N JCT CTH C TO E, Marathon, WI
Built 1967 Load: 32.4 t ADT: 7,000
STH 29 EB
FairOver: LITTLE RIB RIVER
3.6M E JCT CTH O, Marathon, WI
Built 1971 Load: 32.4 t ADT: 20,500
STH 29 WB
FairOver: LITTLE RIB RIVER
1.8M W JCT STH 52 TO E, Marathon, WI
Built 1971 Load: 32.4 t ADT: 20,500
LRD 14TH AVE
FairOver: BOS CREEK
0.6M N JCT USH B51, Marathon, WI
Built 1974 Load: 32.4 t ADT: 412
STH 13
FairOver: ROMEO CREEK
2.8M N JCT STH 98, Marathon, WI
Built 1989 Load: 32.4 t ADT: 6,200
CTH N
FairOver: ELM BROOK
0.1M E JCT STH 13, Marathon, WI
Built 1986 Load: 32.4 t ADT: 1,320
STH 97
FairOver: WILD CREEK
0.4M N JCT CTH C TO E, Marathon, WI
Built 1966 Load: 32.4 t ADT: 6,600
CTH A
FairOver: EINERT CREEK
0.1M E JCT CTH S TO S, Marathon, WI
Built 1986 Load: 32.4 t ADT: 1,203
STH 52
FairOver: PREBLE CREEK
5.8M E JCT CTH W, Marathon, WI
Built 1991 Load: 32.4 t ADT: 2,300
CTH C
FairOver: WILD CREEK
1.0M E JCT STH 97, Marathon, WI
Built 1968 Load: 32.4 t ADT: 2,620
STH 107
FairOver: BIG RIB RIVER
0.6M N JCT CTH B, Marathon, WI
Built 1989 Load: 32.4 t ADT: 5,500
CTH Q
FairOver: BIG SANDY CREEK
0.5M N JCT STH 52, Marathon, WI
Built 1991 Load: 32.4 t ADT: 601
STH 29
FairOver: MARSH CREEK
0.4M E JCT CTH F, Marathon, WI
Built 1999 Load: 32.4 t ADT: 11,900
STH 97
FairOver: POTATO CREEK
1.4M N JCT CTH M TO E, Marathon, WI
Built 1999 Load: 32.4 t ADT: 2,700
STH 29
FairOver: ELM BROOK
TOWN OF HULL, Marathon, WI
Built 1998 Load: 32.4 t ADT: 9,200
STH 153
FairOver: JOHNSON CREEK
2.5M E JCT CTH X, Marathon, WI
Built 1998 Load: 32.4 t ADT: 1,600
STH 49
FairOver: COMET CREEK
3.8M N JCT CTH C, Marathon, WI
Built 1941 Load: 32.4 t ADT: 1,900
CTH DB
FairOver: LAKE DU BAY
0.5M S JCT CTH C, Marathon, WI
Built 1942 Load: 32.4 t ADT: 1,803
LRD BUNGALOO RD
FairOver: BALDWIN CREEK
2.3M N JCT CTH F, Marathon, WI
Built 1974 Load: 32.4 t ADT: 42
LRD WOODLAND RD
FairOver: E BR BIG SANDY CREEK
1.8M S JCT STH 52, Marathon, WI
Built 1907 Load: 32.4 t ADT: 22
LRD CHESAK RD.
FairOver: BROD CREEK
0.1M W JCT STH 97, Marathon, WI
Built 1984 Load: 32.4 t ADT: 30
LRD BUTTERNUT RD
FairOver: BROD CREEK
1.3M N JCT CTH N, Marathon, WI
Built 1984 Load: 32.4 t ADT: 45
CTH P
FairOver: ROCK CREEK
1.1M E JCT STH 97, Marathon, WI
Built 1932 Load: 32.4 t ADT: 500
LRD KRISTOF RD
FairOver: PLOVER RIVER
0.3M W JCT CTH Y, Marathon, WI
Built 1978 Load: 32.4 t ADT: 50
LRD 44TH AVE
FairOver: OTTO CREEK
0.8M N JCT CTH U, Marathon, WI
Built 1991 Load: 32.4 t ADT: 268
USH 8-USH 141
FairOver: S BR PEMEBONWON RIVER
1.0M E JCT CTH OO, Marinette, WI
Built 1970 Load: 32.4 t ADT: 4,600
CTH Z
FairOver: MENOMINEE RIVER
AT MICHIGAN STATE LINE, Marinette, WI
Built 1972 Load: 32.4 t ADT: 603
USH 8-USH 141
FairOver: S BR PEMEBONWON RIVER
0.5M E JCT USH 141 TO S, Marinette, WI
Built 1975 Load: 32.4 t ADT: 5,200
CTH C
FairOver: EAGLE CREEK
4.1M W JCT CTH A, Marinette, WI
Built 1935 Load: 32.4 t ADT: 710
CTH K
FairOver: MENOMINEE RIVER
TOWN OF AMBERG, Marinette, WI
Built 2002 Load: 32.4 t ADT: 170
LRD CALDRON FALLS
FairOver: N FK THUNDER RIVER
2.3M N JCT CTH W, Marinette, WI
Built 1995 Load: 32.4 t ADT: 175
IH USH 51-IH 39
FairOver: CHAPMAN CREEK
2.5M N JCT STH 23 TO W, Marquette, WI
Built 1985 Load: 32.4 t ADT: 17,800
LRD FOX RD
FairOver: NEENAH CREEK
0.5M W JCT CTH A, Marquette, WI
Built 1986 Load: 32.4 t ADT: 110
STH 22-MAIN ST
FairOver: FOX RIVER
0.3M N JCT CTH K, Marquette, WI
Built 1997 Load: 32.4 t ADT: 5,300
STH 82
FairOver: NEENAH CR
0.9M E JCT CTH EE, Marquette, WI
Built 2003 Load: 32.4 t ADT: 4,100
CTH A
FairOver: WIDOW GREEN CREEK
0.6M S JCT CTH P, Marquette, WI
Built 1979 Load: 32.4 t ADT: 830
CTH BB E RAWSON A
FairOver: BR OAK CREEK
0.8M E JCT STH 38, Milwaukee, WI
Built 1955 Load: 32.4 t ADT: 17,100
LRD S SHEPARD AVE
FairOver: OAK CREEK
0.1M N JCT STH 100, Milwaukee, WI
Built 2001 Load: 32.4 t ADT: 2,200
STH 175 SB
FairOver: LAND
0.2M S JCT IH 94 TO W, Milwaukee, WI
Built 1959 Load: 32.4 t ADT: 24,650
IH RAMP IH 94 WB -
FairOver: LAND
0.2M S JCT IH 94 TO W, Milwaukee, WI
Built 1959 Load: 32.4 t ADT: 7,500
STH 100 SB-S 108TH
FairOver: HAST (ABANDONED CMSTPP R
0.5 MI S JCT USH 18, Milwaukee, WI
Built 1961 Load: 32.4 t ADT: 12,650
IH 94 EB-IH 43 SB
FairOver: MENOMONEE CANAL
0.4M S JCT IH 794, Milwaukee, WI
Built 1968 Load: 32.4 t ADT: 78,000
STH 38 SB-HOWELL A
FairOver: OAK CREEK
2.7M S JCT CTH BB (RAWSON, Milwaukee, WI
Built 1968 Load: 32.4 t ADT: 12,050
STH 38 NB-HOWELL A
FairOver: OAK CREEK
0.3M N JCT STH 100, Milwaukee, WI
Built 1968 Load: 32.4 t ADT: 12,050
STH 100-N 108TH ST
FairOver: WILDCAT CREEK
0.8M N JCT USH 45 TO N, Milwaukee, WI
Built 1968 Load: 32.4 t ADT: 23,900
Showing 5,501-5,550 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 |