Local over Twelve Mile Creek
GoodTama County, Iowa · 086142410 · Structure no. 000000000320391
- Built
- 1989
- 36 years old
- Condition
- Good
- inspected September 2022
- Type
- Slab
- Concrete Continuous
- Length
- 169 ft
- 4 main spans
- Daily traffic
- 59
- 2022 count
- Owner
- County
- County Highway Agency
About this bridge
Local over Twelve Mile Creek is a concrete continuous slab carrying Local over Twelve Mile Creek in Tama County, Iowa. It was built in 1989, so it is 36 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 59 vehicles a day, projected to reach 59 by 2042. The structure is 169 ft (51.5 m) long and 25 ft wide. If it were closed, the detour would be 6.2 mi (10 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 | 7 Good | Some minor problems. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was Local over Twelve Mile Creek built?
It was built in 1989, making it 36 years old in 2025.
What condition is Local over Twelve Mile 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 September 2022.
How much traffic does Local over Twelve Mile Creek carry?
About 59 vehicles per day (2022 count).
How long is Local over Twelve Mile Creek?
The structure is 169 ft (51.5 m) long with a longest span of 48 ft (14.6 m) and a deck 25 ft wide.
Who owns Local over Twelve Mile Creek?
It is owned by the County Highway Agency.