US Bridges

Cth Oo (winnebago over IH 41

Fair

Fond du Lac County, Wisconsin · 0.1M E JCT Cth Vvv · Structure no. B20005900000000

Built
1973
52 years old, rebuilt 2009
Condition
Fair
inspected April 2023
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
298 ft
2 main spans
Daily traffic
4,300
2023 count
Owner
State
State Highway Agency

About this bridge

Cth Oo (winnebago over IH 41 is a steel continuous stringer/multi-beam or girder carrying Cth Oo (winnebago over IH 41 in Fond du Lac County, Wisconsin. It was built in 1973 and reconstructed in 2009, so it is 52 years old, older than the Wisconsin average of 40.3 years.

The most recent inspection reported to the Federal Highway Administration rates it in fair condition with a lowest component rating of 5 out of 9. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

It carries about 4,300 vehicles a day, projected to reach 7,300 by 2042. The structure is 298 ft (90.8 m) long and 72 ft wide. If it were closed, the detour would be 9.9 mi (16 km).

Location

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CarriesCth Oo (winnebago
CrossesIH 41
Location0.1M E JCT Cth Vvv
RouteCounty Highway 0
CountyFond du Lac County
StateWisconsin
Coordinates43.80667, -88.49833
Functional classRural Minor Collector

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionApril 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating73.9 US tons
Inventory rating42.9 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans2
Design loadHS 20
Structure length298 ft (90.8 m)
Longest span146 ft (44.5 m)
Deck width72 ft (21.9 m)
Roadway width62 ft (18.9 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic4,300 (2023)
Projected traffic7,300 by 2042
Trucks0%
Lanes on structure4
Traffic directionTwo-way traffic
CarriesHighway
CrossesHighway
Detour if closed9.9 mi (16 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerState Highway Agency
Maintained byState Highway Agency
Historic statusNot eligible for the National Register of Historic Places
Work proposedNone recorded
Estimated improvement cost—
NavigationNot applicable (no waterway)

Frequently asked questions

When was Cth Oo (winnebago over IH 41 built?

It was built in 1973, making it 52 years old in 2025. It was reconstructed in 2009.

What condition is Cth Oo (winnebago over IH 41 in?

The National Bridge Inventory rates it in fair condition. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound. The last reported inspection was in April 2023.

How much traffic does Cth Oo (winnebago over IH 41 carry?

About 4,300 vehicles per day (2023 count).

How long is Cth Oo (winnebago over IH 41?

The structure is 298 ft (90.8 m) long with a longest span of 146 ft (44.5 m) and a deck 72 ft wide.

Who owns Cth Oo (winnebago over IH 41?

It is owned by the State Highway Agency.