Ia 9 over Rock Creek
GoodMitchell County, Iowa · 5.8 Mi. W of W JCT US 218 · Structure no. 000000000036501
- Built
- 1992
- 33 years old
- Condition
- Good
- inspected June 2024
- Type
- Stringer/Multi-beam or Girder
- Prestressed Concrete
- Length
- 83 ft
- 1 main span
- Daily traffic
- 2,340
- 2022 count
- Owner
- State
- State Highway Agency
About this bridge
Ia 9 over Rock Creek is a prestressed concrete stringer/multi-beam or girder carrying Ia 9 over Rock Creek in Mitchell County, Iowa. It was built in 1992, so it is 33 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 2,340 vehicles a day, roughly 11% of them trucks, projected to reach 2,340 by 2044. The structure is 83 ft (25.3 m) long and 43 ft wide. If it were closed, the detour would be 14.3 mi (23 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 | 8 Very Good | No problems noted. |
| 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 9 over Rock Creek built?
It was built in 1992, making it 33 years old in 2025.
What condition is Ia 9 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 June 2024.
How much traffic does Ia 9 over Rock Creek carry?
About 2,340 vehicles per day (2022 count), of which roughly 11% are trucks.
How long is Ia 9 over Rock Creek?
The structure is 83 ft (25.3 m) long with a longest span of 80 ft (24.4 m) and a deck 43 ft wide.
Who owns Ia 9 over Rock Creek?
It is owned by the State Highway Agency.