Sth 28 over Onion River
GoodSheboygan County, Wisconsin · 0.8M E JCT Sth 32 · Structure no. B59010100000000
- Built
- 1990
- 35 years old
- Condition
- Good
- inspected September 2024
- Type
- Stringer/Multi-beam or Girder
- Prestressed Concrete Continuous
- Length
- 225 ft
- 2 main spans
- Daily traffic
- 5,583
- 2021 count
- Owner
- State
- State Highway Agency
About this bridge
Sth 28 over Onion River is a prestressed concrete continuous stringer/multi-beam or girder carrying Sth 28 over Onion River in Sheboygan County, Wisconsin. It was built in 1990, so it is 35 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 5,583 vehicles a day, roughly 4% of them trucks, projected to reach 6,700 by 2041. The structure is 225 ft (68.5 m) long and 47 ft wide. If it were closed, the detour would be 11.8 mi (19 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 28 over Onion River built?
It was built in 1990, making it 35 years old in 2025.
What condition is Sth 28 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 September 2024.
How much traffic does Sth 28 over Onion River carry?
About 5,583 vehicles per day (2021 count), of which roughly 4% are trucks.
How long is Sth 28 over Onion River?
The structure is 225 ft (68.5 m) long with a longest span of 111 ft (33.8 m) and a deck 47 ft wide.
Who owns Sth 28 over Onion River?
It is owned by the State Highway Agency.