Cth M over Dorn Creek
GoodDane County, Wisconsin · 0.6M S JCT Cth K · Structure no. B13060100000000
- Built
- 2006
- 19 years old, rebuilt 2024
- Condition
- Good
- inspected October 2022
- Type
- Culvert
- Concrete
- Length
- 21 ft
- 2 main spans
- Daily traffic
- 11,560
- 2025 count
- Owner
- County
- County Highway Agency
About this bridge
Cth M over Dorn Creek is a concrete culvert carrying Cth M over Dorn Creek in Dane County, Wisconsin. It was built in 2006 and reconstructed in 2024, so it is 19 years old, younger than the Wisconsin average of 40.3 years.
The most recent inspection reported to the Federal Highway Administration rates it in good condition with a lowest component rating of 7 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.
It carries about 11,560 vehicles a day, roughly 5% of them trucks, projected to reach 15,400 by 2041. The structure is 21 ft (6.3 m) long. If it were closed, the detour would be 5 mi (8 km).
Location
Open in Google MapsCondition and inspection
All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.
| Component | Rating | Meaning |
|---|---|---|
| Channel and channel protection | 9 Excellent | No problems noted. |
| Culvert | 7 Good | Some minor problems. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was Cth M over Dorn Creek built?
It was built in 2006, making it 19 years old in 2025. It was reconstructed in 2024.
What condition is Cth M over Dorn Creek in?
The National Bridge Inventory rates it in good condition. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted. The last reported inspection was in October 2022.
How much traffic does Cth M over Dorn Creek carry?
About 11,560 vehicles per day (2025 count), of which roughly 5% are trucks.
How long is Cth M over Dorn Creek?
The structure is 21 ft (6.3 m) long with a longest span of 10 ft (3 m).
Who owns Cth M over Dorn Creek?
It is owned by the County Highway Agency.