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
CNW RR
UnknownOver: LRD SOUTH MAIN STREET
0.7M N JCT USH 41 TO N, Fond du Lac, WI
Built 1935 ADT: 11,700
STH 175
UnknownOver: USH 151
AT INTERSECTION, Fond du Lac, WI
Built 2008 ADT: 11,500
SOO LINE
UnknownOver: USH 8
0.1M E JCT CTH G, Forest, WI
Built 1934 ADT: 2,680
USH 61-USH 151
UnknownOver: MISSISSIPPI RIVER 01
AT USH 61, Grant, WI
Built 1982 ADT: 99
STH 11 WB-STH 35 S
UnknownOver: USH 61-USH 151-STH 35 SB
1.5M N IOWA STATE LINE, Grant, WI
Built 1981 ADT: 350
LRD BADGER RD
UnknownOver: USH 61/151-STH 35
1.0M N JCT STH 11 TO E, Grant, WI
Built 1988 ADT: 9,350
USH 61/151 NB-STH
UnknownOver: LRD SANDY HOOK RD
2.8M W JCT STH 11, Grant, WI
Built 1988 ADT: 440
USH 61/151 SB-STH
UnknownOver: LRD SANDY HOOK RD
2.8M W JCT STH 11, Grant, WI
Built 1988 ADT: 250
USH 61/151 NB-STH
UnknownOver: CTH HHH
1.0M W JCT CTH H, Grant, WI
Built 1993 ADT: 1,600
USH 61/151 SB-STH
UnknownOver: CTH HHH
1.0M W JCT CTH H, Grant, WI
Built 1994 ADT: 1,600
USH 61/151 NB-STH
UnknownOver: CTH H
0.5M W JCT CTH HHH, Grant, WI
Built 1993 ADT: 1,700
USH 61/151 SB-STH
UnknownOver: CTH H
0.5M W JCT CTH HHH, Grant, WI
Built 1994 ADT: 1,700
USH 61 NB/ STH 35
UnknownOver: USH 151
AT CTH HH, Grant, WI
Built 2005 ADT: 8,100
USH 151 NB
UnknownOver: LRD MC ADAM RD
151, Grant, WI
Built 2005 ADT: 50
USH 151 SB
UnknownOver: LRD MC ADAM RD
151, Grant, WI
Built 2005 ADT: 50
CTH D
UnknownOver: USH 151
AT CTH D, Grant, WI
Built 2004 ADT: 5,750
STH 80
UnknownOver: USH 151
AT STH 80, Grant, WI
Built 2003 ADT: 5,000
LRD EVERGREEN RD
UnknownOver: USH 151
1.0M N JCT STH 80, Grant, WI
Built 2004 ADT: 10,000
USH 151 NB
UnknownOver: BUSINESS USH 151
1.2M S JCT W MOUND RD, Grant, WI
Built 2004 ADT: 7,400
USH 151 SB
UnknownOver: BUSINESS USH 151
1.2M S JCT W MOUND RD, Grant, WI
Built 2004 ADT: 7,400
USH 61/151 SB-STH
UnknownOver: USH 61/151 NB ON RAMP (E
AT JCT USH 61-USH 151, Grant, WI
Built 2015 ADT: 110
BN RR
UnknownOver: LRD LYNN HOLLOW LANE
1.5M S JCT STH 133, Grant, WI
Built 1920 ADT: 50
BN RR
UnknownOver: LRD S. MAIN ST
0.1M S JCT STH 133, Grant, WI
Built 1930 ADT: 100
STH 69 SB-STH 81 E
UnknownOver: STH 11
6.6M E JCT CTH M TO N, Green, WI
Built 1969 ADT: 15,200
STH 11 WB-STH 81 W
UnknownOver: STH 69
0.8M N JCT STH 11 TO W, Green, WI
Built 1978 ADT: 6,500
STH 11 EB-STH 81 E
UnknownOver: STH 69
0.8M N JCT STH 11 TO W, Green, WI
Built 1978 ADT: 6,500
STH 59
UnknownOver: STH 11-STH 81
1.2M E JCT STH 69 TO N, Green, WI
Built 1978 ADT: 7,500
LRD CTH N/6TH AVE
UnknownOver: STH 11
6.2M E JCT CTH M TO N, Green, WI
Built 1997 ADT: 7,300
BADGER STATE TRAIL
UnknownOver: LRD 8TH ST
AT REC TRAIL, Green, WI
Built 2012 ADT: 14,900
IC RR
UnknownOver: LRD 8TH ST
0.2M E JCT STH 69, Green, WI
Built 1928 ADT: 9,500
IC RR
UnknownOver: LRD ALLISON RD
0.5M E JCT STH 69, Green, WI
Built 1910 ADT: 50
IC RR
UnknownOver: LRD ROUND GROVE RD
0.5M E JCT CTH FF, Green, WI
Built 1960 ADT: 150
CMSTPP RR
UnknownOver: LRD ALLEN RD
1.0M S JCT STH 11, Green, WI
Built 1960 ADT: 100
UNION PACIFIC RR
UnknownOver: STH 44
0.2M N JCT CTH FF, Green Lake, WI
Built 1922 ADT: 1,201
CNW RR
UnknownOver: CTH II
1.0M S JCT STH 44, Green Lake, WI
Built 1911 ADT: 75
USH 151 SBL
UnknownOver: LRD BRENNAN RD
0.6M E JCT STH 23, Iowa, WI
Built 1979 ADT: 950
USH 151 NBL
UnknownOver: LRD BRENNAN RD
0.5M E JCT STH 23, Iowa, WI
Built 1979 ADT: 950
USH 18 EB / USH 18
UnknownOver: USH 151
3.0M N JCT STH 23 TO E, Iowa, WI
Built 1980 ADT: 10,200
USH 18 WB-USH 151
UnknownOver: CTH Z
1.2M N JCT STH 191, Iowa, WI
Built 1980 ADT: 590
USH 18 EB-USH 151
UnknownOver: CTH Z
1.1M N JCT STH 191, Iowa, WI
Built 1980 ADT: 590
USH 151 SB
UnknownOver: STH 191
1.3M E JCT STH 23, Iowa, WI
Built 1979 ADT: 1,750
USH 151 NB
UnknownOver: STH 191
1.4M E JCT STH 23, Iowa, WI
Built 1979 ADT: 1,750
LRD SECTION LINE R
UnknownOver: USH 151
2.6M N JCT STH 23 TO E, Iowa, WI
Built 1980 ADT: 10,200
STH 23 NB
UnknownOver: USH 151
1.0M N JCT STH 23 TO E, Iowa, WI
Built 1979 ADT: 10,200
USH 18 WB-USH 151
UnknownOver: CTH H
6.4M N JCT CTH K, Iowa, WI
Built 1982 ADT: 170
USH 18 EB-USH 151
UnknownOver: CTH H
6.3M N JCT CTH K, Iowa, WI
Built 1988 ADT: 170
USH 18 EB-USH 151
UnknownOver: CTH ID | S. JONES STREET
0.8M S JCT CTH ID, Iowa, WI
Built 1988 ADT: 520
USH 18 WB-USH 151
UnknownOver: LRD S JONES ST
AT JCT USH 18, Iowa, WI
Built 1983 ADT: 520
PEDESTRIAN
UnknownOver: STH 23
3.8M E JCT CTH Y TO E, Iowa, WI
Built 1994 ADT: 2,700
CTH ID
UnknownOver: USH 18 & 151
1.1M E JCT CTH T TO S, Iowa, WI
Built 2002 ADT: 15,700
Showing 851-900 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 |