Sth 106 over Br Lake Koshkonong
FairJefferson County, Wisconsin · 1.0M E JCT Cth a · Structure no. B28010700000000
- Built
- 2001
- 24 years old
- Condition
- Fair
- inspected January 2025
- Type
- Slab
- Concrete
- Length
- 38 ft
- 1 main span
- Daily traffic
- 1,300
- 2022 count
- Owner
- State
- State Highway Agency
About this bridge
Sth 106 over Br Lake Koshkonong is a concrete slab carrying Sth 106 over Br Lake Koshkonong in Jefferson 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 1,300 vehicles a day, roughly 12% of them trucks, projected to reach 1,410 by 2044. The structure is 38 ft (11.6 m) long and 37 ft wide. If it were closed, the detour would be 5.6 mi (9 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 | 6 Satisfactory | Structural elements show some minor deterioration. |
| Substructure | 7 Good | Some minor problems. |
| Channel and channel protection | 8 Very Good | No problems noted. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was Sth 106 over Br Lake Koshkonong built?
It was built in 2001, making it 24 years old in 2025.
What condition is Sth 106 over Br Lake Koshkonong 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 January 2025.
How much traffic does Sth 106 over Br Lake Koshkonong carry?
About 1,300 vehicles per day (2022 count), of which roughly 12% are trucks.
How long is Sth 106 over Br Lake Koshkonong?
The structure is 38 ft (11.6 m) long with a longest span of 35 ft (10.8 m) and a deck 37 ft wide.
Who owns Sth 106 over Br Lake Koshkonong?
It is owned by the State Highway Agency.