Cth N over Onion River
FairSheboygan County, Wisconsin · 0.8M W JCT Sth 57 · Structure no. P59014100000000
- Built
- 1931
- 94 years old
- Condition
- Fair
- inspected August 2024
- Type
- Stringer/Multi-beam or Girder
- Concrete
- Length
- 38 ft
- 1 main span
- Daily traffic
- 215
- 2024 count
- Owner
- County
- County Highway Agency
About this bridge
Cth N over Onion River is a concrete stringer/multi-beam or girder carrying Cth N over Onion River in Sheboygan County, Wisconsin. It was built in 1931, so it is 94 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 215 vehicles a day, projected to reach 225 by 2043. The structure is 38 ft (11.7 m) long and 52 ft wide. 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 |
|---|---|---|
| Deck | 7 Good | Some minor problems. |
| Superstructure | 7 Good | Some minor problems. |
| 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 Cth N over Onion River built?
It was built in 1931, making it 94 years old in 2025.
What condition is Cth N over Onion 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 August 2024.
How much traffic does Cth N over Onion River carry?
About 215 vehicles per day (2024 count).
How long is Cth N over Onion River?
The structure is 38 ft (11.7 m) long with a longest span of 37 ft (11.2 m) and a deck 52 ft wide.
Who owns Cth N over Onion River?
It is owned by the County Highway Agency.