IH 43 SB over Cth F
FairWalworth County, Wisconsin · 2.7 MI S JCT Sth 67 · Structure no. B64011500000000
- Built
- 1975
- 50 years old
- Condition
- Fair
- inspected September 2023
- Type
- Stringer/Multi-beam or Girder
- Prestressed Concrete Continuous
- Length
- 156 ft
- 3 main spans
- Daily traffic
- 10,950
- 2022 count
- Owner
- State
- State Highway Agency
About this bridge
IH 43 SB over Cth F is a prestressed concrete continuous stringer/multi-beam or girder carrying IH 43 SB over Cth F in Walworth County, Wisconsin. It was built in 1975, so it is 50 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 10,950 vehicles a day, roughly 16% of them trucks, projected to reach 13,140 by 2042. The structure is 156 ft (47.5 m) long and 44 ft wide. If it were closed, the detour would be 0.6 mi (1 km).
Location
Open in Google MapsCondition and inspection
The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.
| Component | Rating | Meaning |
|---|---|---|
| Deck | 6 Satisfactory | Structural elements show some minor deterioration. |
| Superstructure | 7 Good | Some minor problems. |
| Substructure | 5 Fair | All primary structural elements are sound but may have minor section loss, cracking, spalling or scour. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was IH 43 SB over Cth F built?
It was built in 1975, making it 50 years old in 2025.
What condition is IH 43 SB over Cth F 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 September 2023.
How much traffic does IH 43 SB over Cth F carry?
About 10,950 vehicles per day (2022 count), of which roughly 16% are trucks.
How long is IH 43 SB over Cth F?
The structure is 156 ft (47.5 m) long with a longest span of 88 ft (26.7 m) and a deck 44 ft wide.
Who owns IH 43 SB over Cth F?
It is owned by the State Highway Agency.