Sth 33 over Wisconsin River
FairColumbia County, Wisconsin · 1.1M E JCT Sth 78 to N · Structure no. B11007100000000
- Built
- 1968
- 57 years old, rebuilt 2011
- Condition
- Fair
- inspected September 2023
- Type
- Stringer/Multi-beam or Girder
- Steel Continuous
- Length
- 663 ft
- 5 main spans
- Daily traffic
- 8,500
- 2021 count
- Owner
- State
- State Highway Agency
About this bridge
Sth 33 over Wisconsin River is a steel continuous stringer/multi-beam or girder carrying Sth 33 over Wisconsin River in Columbia County, Wisconsin. It was built in 1968 and reconstructed in 2011, so it is 57 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 8,500 vehicles a day, roughly 3% of them trucks, projected to reach 10,200 by 2041. The structure is 663 ft (202.2 m) long and 51 ft wide. If it were closed, the detour would be 5.6 mi (9 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 | 6 Satisfactory | Structural elements show some minor deterioration. |
| Substructure | 6 Satisfactory | Structural elements show some minor deterioration. |
| Channel and channel protection | 7 Good | Some minor problems. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was Sth 33 over Wisconsin River built?
It was built in 1968, making it 57 years old in 2025. It was reconstructed in 2011.
What condition is Sth 33 over Wisconsin 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 September 2023.
How much traffic does Sth 33 over Wisconsin River carry?
About 8,500 vehicles per day (2021 count), of which roughly 3% are trucks.
How long is Sth 33 over Wisconsin River?
The structure is 663 ft (202.2 m) long with a longest span of 143 ft (43.6 m) and a deck 51 ft wide.
Who owns Sth 33 over Wisconsin River?
It is owned by the State Highway Agency.