Cth Bb over Door Creek
FairDane County, Wisconsin · 3.0M W JCT Cth N · Structure no. B13023500000000
- Built
- 1964
- 61 years old
- Condition
- Fair
- inspected October 2024
- Type
- Culvert
- Concrete Continuous
- Length
- 23 ft
- 2 main spans
- Daily traffic
- 7,100
- 2022 count
- Owner
- County
- County Highway Agency
About this bridge
Cth Bb over Door Creek is a concrete continuous culvert carrying Cth Bb over Door Creek in Dane County, Wisconsin. It was built in 1964, so it is 61 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 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 7,100 vehicles a day, projected to reach 8,520 by 2042. The structure is 23 ft (7 m) long. If it were closed, the detour would be 3.7 mi (6 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 | 8 Very Good | 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 Cth Bb over Door Creek built?
It was built in 1964, making it 61 years old in 2025.
What condition is Cth Bb over Door 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 October 2024.
How much traffic does Cth Bb over Door Creek carry?
About 7,100 vehicles per day (2022 count).
How long is Cth Bb over Door Creek?
The structure is 23 ft (7 m) long with a longest span of 10 ft (3 m).
Who owns Cth Bb over Door Creek?
It is owned by the County Highway Agency.