FM - Yankton over Three Mile Creek
FairCass County, Iowa · 074363401 · Structure no. 000000000097391
- Built
- 1977
- 48 years old
- Condition
- Fair
- inspected March 2024
- Type
- Stringer/Multi-beam or Girder
- Prestressed Concrete
- Length
- 82 ft
- 1 main span
- Daily traffic
- 34
- 2022 count
- Owner
- County
- County Highway Agency
About this bridge
FM - Yankton over Three Mile Creek is a prestressed concrete stringer/multi-beam or girder carrying FM - Yankton over Three Mile Creek in Cass County, Iowa. It was built in 1977, so it is 48 years old, older than the Iowa average of 45.5 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 34 vehicles a day, projected to reach 34 by 2044. The structure is 82 ft (25 m) long and 28 ft wide. If it were closed, the detour would be 5 mi (8 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 | 7 Good | Some minor problems. |
| 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 FM - Yankton over Three Mile Creek built?
It was built in 1977, making it 48 years old in 2025.
What condition is FM - Yankton over Three Mile 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 March 2024.
How much traffic does FM - Yankton over Three Mile Creek carry?
About 34 vehicles per day (2022 count).
How long is FM - Yankton over Three Mile Creek?
The structure is 82 ft (25 m) long with a longest span of 81 ft (24.7 m) and a deck 28 ft wide.
Who owns FM - Yankton over Three Mile Creek?
It is owned by the County Highway Agency.