Sth 21 over IH 41
GoodWinnebago County, Wisconsin · At Sth 21 Interchange · Structure no. B70025800000000
- Built
- 2012
- 13 years old
- Condition
- Good
- inspected November 2024
- Type
- Stringer/Multi-beam or Girder
- Prestressed Concrete Continuous
- Length
- 150 ft
- 2 main spans
- Daily traffic
- 18,500
- 2024 count
- Owner
- State
- State Highway Agency
About this bridge
Sth 21 over IH 41 is a prestressed concrete continuous stringer/multi-beam or girder carrying Sth 21 over IH 41 in Winnebago County, Wisconsin. It was built in 2012, so it is 13 years old, younger than the Wisconsin average of 40.3 years.
The most recent inspection reported to the Federal Highway Administration rates it in good condition with a lowest component rating of 7 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.
It carries about 18,500 vehicles a day, roughly 13% of them trucks, projected to reach 41,500 by 2043. The structure is 150 ft (45.7 m) long and 103 ft wide. If it were closed, the detour would be 1.9 mi (3 km).
Location
Open in Google MapsCondition and inspection
All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.
| Component | Rating | Meaning |
|---|---|---|
| Deck | 7 Good | Some minor problems. |
| Superstructure | 8 Very Good | No problems noted. |
| Substructure | 8 Very Good | No problems noted. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was Sth 21 over IH 41 built?
It was built in 2012, making it 13 years old in 2025.
What condition is Sth 21 over IH 41 in?
The National Bridge Inventory rates it in good condition. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted. The last reported inspection was in November 2024.
How much traffic does Sth 21 over IH 41 carry?
About 18,500 vehicles per day (2024 count), of which roughly 13% are trucks.
How long is Sth 21 over IH 41?
The structure is 150 ft (45.7 m) long with a longest span of 73 ft (22.3 m) and a deck 103 ft wide.
Who owns Sth 21 over IH 41?
It is owned by the State Highway Agency.