Csah 51 over Sand Hill River
FairPolk County, Minnesota · 1.7 MI E of JCT TH 75 · Structure no. 60524
- Built
- 1977
- 48 years old
- Condition
- Fair
- inspected October 2024
- Type
- Tee Beam
- Prestressed Concrete
- Length
- 157 ft
- 3 main spans
- Daily traffic
- 25
- 2021 count
- Owner
- County
- County Highway Agency
About this bridge
Csah 51 over Sand Hill River is a prestressed concrete tee beam carrying Csah 51 over Sand Hill River in Polk County, Minnesota. It was built in 1977, so it is 48 years old, older 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 25 vehicles a day, projected to reach 40 by 2041. The structure is 157 ft (47.9 m) long and 37 ft wide. If it were closed, the detour would be 3.1 mi (5 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 | 6 Satisfactory | Structural elements show some minor deterioration. |
| Channel and channel protection | 7 Good | Some minor problems. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was Csah 51 over Sand Hill River built?
It was built in 1977, making it 48 years old in 2025.
What condition is Csah 51 over Sand Hill 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 2024.
How much traffic does Csah 51 over Sand Hill River carry?
About 25 vehicles per day (2021 count).
How long is Csah 51 over Sand Hill River?
The structure is 157 ft (47.9 m) long with a longest span of 52 ft (15.9 m) and a deck 37 ft wide.
Who owns Csah 51 over Sand Hill River?
It is owned by the County Highway Agency.