Sth 33 over Baraboo River
FairColumbia County, Wisconsin · 0.5M E JCT Cth W · Structure no. B11002100000000
- Built
- 1961
- 64 years old, rebuilt 1995
- Condition
- Fair
- inspected July 2023
- Type
- Stringer/Multi-beam or Girder
- Steel Continuous
- Length
- 183 ft
- 3 main spans
- Daily traffic
- 6,800
- 2021 count
- Owner
- State
- State Highway Agency
About this bridge
Sth 33 over Baraboo River is a steel continuous stringer/multi-beam or girder carrying Sth 33 over Baraboo River in Columbia County, Wisconsin. It was built in 1961 and reconstructed in 1995, 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 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 6,800 vehicles a day, roughly 5% of them trucks, projected to reach 8,160 by 2041. The structure is 183 ft (55.7 m) long and 37 ft wide. If it were closed, the detour would be 32.9 mi (53 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 | 6 Satisfactory | Structural elements show some minor deterioration. |
| Superstructure | 6 Satisfactory | Structural elements show some minor deterioration. |
| Substructure | 6 Satisfactory | Structural elements show some minor deterioration. |
| Channel and channel protection | 6 Satisfactory | Structural elements show some minor deterioration. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was Sth 33 over Baraboo River built?
It was built in 1961, making it 64 years old in 2025. It was reconstructed in 1995.
What condition is Sth 33 over Baraboo 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 July 2023.
How much traffic does Sth 33 over Baraboo River carry?
About 6,800 vehicles per day (2021 count), of which roughly 5% are trucks.
How long is Sth 33 over Baraboo River?
The structure is 183 ft (55.7 m) long with a longest span of 68 ft (20.7 m) and a deck 37 ft wide.
Who owns Sth 33 over Baraboo River?
It is owned by the State Highway Agency.