Sth 57 Nb|sth 28 E over Onion River
GoodSheboygan County, Wisconsin · 0.1M E JCT Sth 57 to S · Structure no. B59001300000000
- Built
- 1961
- 64 years old, rebuilt 2012
- Condition
- Good
- inspected June 2024
- Type
- Slab
- Concrete
- Length
- 41 ft
- 1 main span
- Daily traffic
- 6,500
- 2022 count
- Owner
- State
- State Highway Agency
About this bridge
Sth 57 Nb|sth 28 E over Onion River is a concrete slab carrying Sth 57 Nb|sth 28 E over Onion River in Sheboygan County, Wisconsin. It was built in 1961 and reconstructed in 2012, so it is 64 years old, older 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 6,500 vehicles a day, roughly 8% of them trucks, projected to reach 12,650 by 2043. The structure is 41 ft (12.6 m) long and 42 ft wide. If it were closed, the detour would be 0.6 mi (1 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 | 7 Good | Some minor problems. |
| Channel and channel protection | 8 Very Good | No problems noted. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was Sth 57 Nb|sth 28 E over Onion River built?
It was built in 1961, making it 64 years old in 2025. It was reconstructed in 2012.
What condition is Sth 57 Nb|sth 28 E 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 June 2024.
How much traffic does Sth 57 Nb|sth 28 E over Onion River carry?
About 6,500 vehicles per day (2022 count), of which roughly 8% are trucks.
How long is Sth 57 Nb|sth 28 E over Onion River?
The structure is 41 ft (12.6 m) long with a longest span of 41 ft (12.6 m) and a deck 42 ft wide.
Who owns Sth 57 Nb|sth 28 E over Onion River?
It is owned by the State Highway Agency.