Ia 415 over Rock Creek
GoodPolk County, Iowa · 1.9 Miles N of JCT Ia 160 · Structure no. 000000000601295
- Built
- 1993
- 32 years old
- Condition
- Good
- inspected March 2024
- Type
- Stringer/Multi-beam or Girder
- Prestressed Concrete
- Length
- 291 ft
- 3 main spans
- Daily traffic
- 9,100
- 2022 count
- Owner
- State
- State Highway Agency
About this bridge
Ia 415 over Rock Creek is a prestressed concrete stringer/multi-beam or girder carrying Ia 415 over Rock Creek in Polk County, Iowa. It was built in 1993, so it is 32 years old, younger than the Iowa average of 45.5 years.
The most recent inspection reported to the Federal Highway Administration rates it in good condition with a lowest component rating of 7 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.
It carries about 9,100 vehicles a day, roughly 4% of them trucks, projected to reach 9,100 by 2044. The structure is 291 ft (88.7 m) long and 47 ft wide. If it were closed, the detour would be 1.9 mi (3 km).
Location
Open in Google MapsCondition and inspection
All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.
| Component | Rating | Meaning |
|---|---|---|
| Deck | 7 Good | Some minor problems. |
| 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 Ia 415 over Rock Creek built?
It was built in 1993, making it 32 years old in 2025.
What condition is Ia 415 over Rock Creek in?
The National Bridge Inventory rates it in good condition. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted. The last reported inspection was in March 2024.
How much traffic does Ia 415 over Rock Creek carry?
About 9,100 vehicles per day (2022 count), of which roughly 4% are trucks.
How long is Ia 415 over Rock Creek?
The structure is 291 ft (88.7 m) long with a longest span of 95 ft (29 m) and a deck 47 ft wide.
Who owns Ia 415 over Rock Creek?
It is owned by the State Highway Agency.