Sth 243 over ST Croix River 06
PoorPosted for loadPolk County, Wisconsin · At Minnesota State Line · Structure no. B48022400000000
- Built
- 1953
- 72 years old, rebuilt 1980
- Condition
- Poor
- inspected May 2023
- Type
- Truss - Deck
- Steel
- Length
- 674 ft
- 5 main spans
- Daily traffic
- 5,686
- 2022 count
- Owner
- State
- State Highway Agency
About this bridge
Sth 243 over ST Croix River 06 is a steel truss - deck carrying Sth 243 over ST Croix River 06 in Polk County, Wisconsin. It was built in 1953 and reconstructed in 1980, so it is 72 years old, older than the Wisconsin average of 40.3 years.
The most recent inspection reported to the Federal Highway Administration rates it in poor condition with a lowest component rating of 4 out of 9. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions. Its operating status is: posted for load restriction.
It carries about 5,686 vehicles a day, roughly 5% of them trucks, projected to reach 7,560 by 2042. The structure is 674 ft (205.4 m) long and 34 ft wide. If it were closed, the detour would be 15.5 mi (25 km).
Location
Open in Google MapsCondition and inspection
The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions.
| Component | Rating | Meaning |
|---|---|---|
| Deck | 4 Poor | Advanced section loss, deterioration, spalling or scour. |
| Superstructure | 5 Fair | All primary structural elements are sound but may have minor section loss, cracking, spalling or scour. |
| 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 243 over ST Croix River 06 built?
It was built in 1953, making it 72 years old in 2025. It was reconstructed in 1980.
What condition is Sth 243 over ST Croix River 06 in?
The National Bridge Inventory rates it in poor condition. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions. The last reported inspection was in May 2023.
How much traffic does Sth 243 over ST Croix River 06 carry?
About 5,686 vehicles per day (2022 count), of which roughly 5% are trucks.
How long is Sth 243 over ST Croix River 06?
The structure is 674 ft (205.4 m) long with a longest span of 162 ft (49.4 m) and a deck 34 ft wide.
Who owns Sth 243 over ST Croix River 06?
It is owned by the State Highway Agency.