Sth 13 over Marengo River
FairAshland County, Wisconsin · 1.6M N JCT Cth C · Structure no. B02001200000000
- Built
- 1971
- 54 years old, rebuilt 2003
- Condition
- Fair
- inspected October 2023
- Type
- Stringer/Multi-beam or Girder
- Prestressed Concrete Continuous
- Length
- 152 ft
- 3 main spans
- Daily traffic
- 2,800
- 2022 count
- Owner
- State
- State Highway Agency
About this bridge
Sth 13 over Marengo River is a prestressed concrete continuous stringer/multi-beam or girder carrying Sth 13 over Marengo River in Ashland County, Wisconsin. It was built in 1971 and reconstructed in 2003, so it is 54 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 2,800 vehicles a day, roughly 11% of them trucks, projected to reach 3,360 by 2042. The structure is 152 ft (46.4 m) long and 48 ft wide. If it were closed, the detour would be 38.5 mi (62 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 | 7 Good | Some minor problems. |
| Channel and channel protection | 7 Good | Some minor problems. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was Sth 13 over Marengo River built?
It was built in 1971, making it 54 years old in 2025. It was reconstructed in 2003.
What condition is Sth 13 over Marengo 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 October 2023.
How much traffic does Sth 13 over Marengo River carry?
About 2,800 vehicles per day (2022 count), of which roughly 11% are trucks.
How long is Sth 13 over Marengo River?
The structure is 152 ft (46.4 m) long with a longest span of 51 ft (15.4 m) and a deck 48 ft wide.
Who owns Sth 13 over Marengo River?
It is owned by the State Highway Agency.