Cth I over Onion River
GoodSheboygan County, Wisconsin · 0.3M N JCT Cth W · Structure no. B59016800000000
- Built
- 1998
- 27 years old
- Condition
- Good
- inspected May 2023
- Type
- Slab
- Concrete
- Length
- 88 ft
- 2 main spans
- Daily traffic
- 700
- 2021 count
- Owner
- County
- County Highway Agency
About this bridge
Cth I over Onion River is a concrete slab carrying Cth I over Onion River in Sheboygan County, Wisconsin. It was built in 1998, so it is 27 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 700 vehicles a day, projected to reach 840 by 2041. The structure is 88 ft (26.8 m) long and 31 ft wide. If it were closed, the detour would be 3.7 mi (6 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 |
|---|---|---|
| Deck | 7 Good | Some minor problems. |
| Superstructure | 7 Good | Some minor problems. |
| Substructure | 8 Very Good | No problems noted. |
| Channel and channel protection | 7 Good | Some minor problems. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was Cth I over Onion River built?
It was built in 1998, making it 27 years old in 2025.
What condition is Cth I over Onion River 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 May 2023.
How much traffic does Cth I over Onion River carry?
About 700 vehicles per day (2021 count).
How long is Cth I over Onion River?
The structure is 88 ft (26.8 m) long with a longest span of 43 ft (13 m) and a deck 31 ft wide.
Who owns Cth I over Onion River?
It is owned by the County Highway Agency.