US Bridges

IH 41 over S Br Mud Creek

Fair

Winnebago County, Wisconsin · 0.1 MI S of CO Line · Structure no. B70002100000000

Built
1935
90 years old, rebuilt 1959
Condition
Fair
inspected June 2023
Type
Culvert
Concrete Continuous
Length
28 ft
2 main spans
Daily traffic
88,300
2021 count
Owner
State
State Highway Agency

About this bridge

IH 41 over S Br Mud Creek is a concrete continuous culvert carrying IH 41 over S Br Mud Creek in Winnebago County, Wisconsin. It was built in 1935 and reconstructed in 1959, so it is 90 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 88,300 vehicles a day, roughly 10% of them trucks, projected to reach 114,440 by 2042. The structure is 28 ft (8.5 m) long. If it were closed, the detour would be 2.5 mi (4 km).

CarriesIH 41
CrossesS Br Mud Creek
Location0.1 MI S of CO Line
RouteInterstate 41
Coordinates44.24333, -88.46667
Functional classUrban Principal Arterial - Interstate

Condition and inspection

Fair

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

ComponentRatingMeaning
Channel and channel protection8 Very GoodNo problems noted.
Culvert5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionJune 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating59.4 US tons
Inventory rating35.7 US tons

Structure

Structure typeCulvert
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans2
Design loadHS 20
Structure length28 ft (8.5 m)
Longest span12 ft (3.8 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic88,300 (2021)
Projected traffic114,440 by 2042
Trucks10%
Lanes on structure5
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed2.5 mi (4 km)
TollOn a free road
National Highway SystemYes
Strategic Highway NetworkInterstate STRAHNET route

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—
NavigationNo navigation control on waterway

Frequently asked questions

When was IH 41 over S Br Mud Creek built?

It was built in 1935, making it 90 years old in 2025. It was reconstructed in 1959.

What condition is IH 41 over S Br Mud Creek 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 June 2023.

How much traffic does IH 41 over S Br Mud Creek carry?

About 88,300 vehicles per day (2021 count), of which roughly 10% are trucks.

How long is IH 41 over S Br Mud Creek?

The structure is 28 ft (8.5 m) long with a longest span of 12 ft (3.8 m).

Who owns IH 41 over S Br Mud Creek?

It is owned by the State Highway Agency.