Ia 163 over Four Mile Creek
FairPolk County, Iowa · 1.7 Mi. W of Jct. U.S. 65 · Structure no. 000000000040941
- Built
- 1975
- 50 years old
- Condition
- Fair
- inspected June 2023
- Type
- Stringer/Multi-beam or Girder
- Prestressed Concrete
- Length
- 256 ft
- 3 main spans
- Daily traffic
- 23,300
- 2022 count
- Owner
- State
- State Highway Agency
About this bridge
Ia 163 over Four Mile Creek is a prestressed concrete stringer/multi-beam or girder carrying Ia 163 over Four Mile Creek in Polk County, Iowa. It was built in 1975, so it is 50 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 23,300 vehicles a day, roughly 4% of them trucks, projected to reach 23,300 by 2042. The structure is 256 ft (78 m) long and 59 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 | 6 Satisfactory | Structural elements show some minor deterioration. |
| Superstructure | 7 Good | Some minor problems. |
| Substructure | 7 Good | Some minor problems. |
| Channel and channel protection | 7 Good | Some minor problems. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was Ia 163 over Four Mile Creek built?
It was built in 1975, making it 50 years old in 2025.
What condition is Ia 163 over Four 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 June 2023.
How much traffic does Ia 163 over Four Mile Creek carry?
About 23,300 vehicles per day (2022 count), of which roughly 4% are trucks.
How long is Ia 163 over Four Mile Creek?
The structure is 256 ft (78 m) long with a longest span of 87 ft (26.5 m) and a deck 59 ft wide.
Who owns Ia 163 over Four Mile Creek?
It is owned by the State Highway Agency.