Sth 78-STH 81 over Pecatonica River
FairLafayette County, Wisconsin · 0.2M N JCT Sth 81 to W · Structure no. B33007400000000
- Built
- 2001
- 24 years old
- Condition
- Fair
- inspected October 2023
- Type
- Stringer/Multi-beam or Girder
- Prestressed Concrete Continuous
- Length
- 161 ft
- 2 main spans
- Daily traffic
- 3,000
- 2022 count
- Owner
- State
- State Highway Agency
About this bridge
Sth 78-STH 81 over Pecatonica River is a prestressed concrete continuous stringer/multi-beam or girder carrying Sth 78-STH 81 over Pecatonica River in Lafayette County, Wisconsin. It was built in 2001, so it is 24 years old, younger 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 6 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 3,000 vehicles a day, roughly 4% of them trucks, projected to reach 2,110 by 2042. The structure is 161 ft (49.2 m) long and 39 ft wide. If it were closed, the detour would be 42.9 mi (69 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 | 8 Very Good | No problems noted. |
| Substructure | 6 Satisfactory | Structural elements show some minor deterioration. |
| Channel and channel protection | 8 Very Good | No problems noted. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was Sth 78-STH 81 over Pecatonica River built?
It was built in 2001, making it 24 years old in 2025.
What condition is Sth 78-STH 81 over Pecatonica River 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 October 2023.
How much traffic does Sth 78-STH 81 over Pecatonica River carry?
About 3,000 vehicles per day (2022 count), of which roughly 4% are trucks.
How long is Sth 78-STH 81 over Pecatonica River?
The structure is 161 ft (49.2 m) long with a longest span of 79 ft (24 m) and a deck 39 ft wide.
Who owns Sth 78-STH 81 over Pecatonica River?
It is owned by the State Highway Agency.