Csah 21 over Mahoney Creek
FairFillmore County, Minnesota · 1.8 MI NW of JCT Csah 8 · Structure no. 93945
- Built
- 1987
- 38 years old
- Condition
- Fair
- inspected April 2024
- Type
- Culvert
- Concrete
- Length
- 47 ft
- 3 main spans
- Daily traffic
- 135
- 2013 count
- Owner
- County
- County Highway Agency
About this bridge
Csah 21 over Mahoney Creek is a concrete culvert carrying Csah 21 over Mahoney Creek in Fillmore County, Minnesota. It was built in 1987, so it is 38 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 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 135 vehicles a day, projected to reach 135 by 2039. The structure is 47 ft (14.4 m) long. If it were closed, the detour would be 11.2 mi (18 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 |
|---|---|---|
| Channel and channel protection | 5 Fair | All primary structural elements are sound but may have minor section loss, cracking, spalling or scour. |
| Culvert | 6 Satisfactory | Structural elements show some minor deterioration. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was Csah 21 over Mahoney Creek built?
It was built in 1987, making it 38 years old in 2025.
What condition is Csah 21 over Mahoney 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 April 2024.
How much traffic does Csah 21 over Mahoney Creek carry?
About 135 vehicles per day (2013 count).
How long is Csah 21 over Mahoney Creek?
The structure is 47 ft (14.4 m) long with a longest span of 12 ft (3.6 m).
Who owns Csah 21 over Mahoney Creek?
It is owned by the County Highway Agency.