Sth 121 over Three Mile Creek
FairBuffalo County, Wisconsin · 2.5M E JCT Sth 88 · Structure no. B06005100000000
- Built
- 1986
- 39 years old
- Condition
- Fair
- inspected May 2024
- Type
- Culvert
- Concrete
- Length
- 23 ft
- 2 main spans
- Daily traffic
- 540
- 2022 count
- Owner
- State
- State Highway Agency
About this bridge
Sth 121 over Three Mile Creek is a concrete culvert carrying Sth 121 over Three Mile Creek in Buffalo County, Wisconsin. It was built in 1986, so it is 39 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 540 vehicles a day, roughly 5% of them trucks, projected to reach 648 by 2043. The structure is 23 ft (7 m) long. If it were closed, the detour would be 46.6 mi (75 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 |
|---|---|---|
| Channel and channel protection | 9 Excellent | No problems noted. |
| Culvert | 6 Satisfactory | Structural elements show some minor deterioration. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was Sth 121 over Three Mile Creek built?
It was built in 1986, making it 39 years old in 2025.
What condition is Sth 121 over Three Mile 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 May 2024.
How much traffic does Sth 121 over Three Mile Creek carry?
About 540 vehicles per day (2022 count), of which roughly 5% are trucks.
How long is Sth 121 over Three Mile Creek?
The structure is 23 ft (7 m) long with a longest span of 10 ft (3 m).
Who owns Sth 121 over Three Mile Creek?
It is owned by the State Highway Agency.