Csah 12 over Thief River
GoodMarshall County, Minnesota · 3.1 MI N of JCT Csah 2 · Structure no. 45544
- Built
- 1989
- 36 years old
- Condition
- Good
- inspected November 2023
- Type
- Tee Beam
- Prestressed Concrete
- Length
- 131 ft
- 3 main spans
- Daily traffic
- 220
- 2018 count
- Owner
- County
- County Highway Agency
About this bridge
Csah 12 over Thief River is a prestressed concrete tee beam carrying Csah 12 over Thief River in Marshall County, Minnesota. It was built in 1989, so it is 36 years old, younger than the Minnesota average of 38.5 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 220 vehicles a day, projected to reach 195 by 2038. The structure is 131 ft (39.8 m) long and 35 ft wide. If it were closed, the detour would be 8.1 mi (13 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 | 5 Fair | All primary structural elements are sound but may have minor section loss, cracking, spalling or scour. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was Csah 12 over Thief River built?
It was built in 1989, making it 36 years old in 2025.
What condition is Csah 12 over Thief 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 November 2023.
How much traffic does Csah 12 over Thief River carry?
About 220 vehicles per day (2018 count).
How long is Csah 12 over Thief River?
The structure is 131 ft (39.8 m) long with a longest span of 43 ft (13.2 m) and a deck 35 ft wide.
Who owns Csah 12 over Thief River?
It is owned by the County Highway Agency.