Csah 40 over Birch Creek
FairPine County, Minnesota · 0.2 MI S of JCT Csah 52 · Structure no. 58529
- Built
- 1989
- 36 years old
- Condition
- Fair
- inspected September 2024
- Type
- Stringer/Multi-beam or Girder
- Prestressed Concrete
- Length
- 86 ft
- 1 main span
- Daily traffic
- 92
- 2021 count
- Owner
- County
- County Highway Agency
About this bridge
Csah 40 over Birch Creek is a prestressed concrete stringer/multi-beam or girder carrying Csah 40 over Birch Creek in Pine 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 fair condition with a lowest component rating of 5 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 92 vehicles a day, projected to reach 160 by 2041. The structure is 86 ft (26.2 m) long and 35 ft wide. If it were closed, the detour would be 1.9 mi (3 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 | 5 Fair | All primary structural elements are sound but may have minor section loss, cracking, spalling or scour. |
| Superstructure | 7 Good | Some minor problems. |
| Substructure | 7 Good | Some minor problems. |
| 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 Csah 40 over Birch Creek built?
It was built in 1989, making it 36 years old in 2025.
What condition is Csah 40 over Birch Creek 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 2024.
How much traffic does Csah 40 over Birch Creek carry?
About 92 vehicles per day (2021 count).
How long is Csah 40 over Birch Creek?
The structure is 86 ft (26.2 m) long with a longest span of 83 ft (25.3 m) and a deck 35 ft wide.
Who owns Csah 40 over Birch Creek?
It is owned by the County Highway Agency.