Local over Twelve Mile Creek
PoorTama County, Iowa · 086143002 · Structure no. 000000000320431
- Built
- 1985
- 40 years old
- Condition
- Poor
- inspected September 2024
- Type
- Stringer/Multi-beam or Girder
- Wood or Timber
- Length
- 101 ft
- 5 main spans
- Daily traffic
- 29
- 2022 count
- Owner
- County
- County Highway Agency
About this bridge
Local over Twelve Mile Creek is a wood or timber stringer/multi-beam or girder carrying Local over Twelve Mile Creek in Tama County, Iowa. It was built in 1985, so it is 40 years old, younger than the Iowa average of 45.5 years.
The most recent inspection reported to the Federal Highway Administration rates it in poor condition with a lowest component rating of 4 out of 9. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions. Its operating status is: open, posting recommended but not legally implemented.
It carries about 29 vehicles a day, projected to reach 29 by 2044. The structure is 101 ft (30.8 m) long and 24 ft wide. If it were closed, the detour would be 6.2 mi (10 km).
Location
Open in Google MapsCondition and inspection
The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions.
| Component | Rating | Meaning |
|---|---|---|
| Deck | 4 Poor | Advanced section loss, deterioration, spalling or scour. |
| Superstructure | 6 Satisfactory | Structural elements show some minor deterioration. |
| Substructure | 4 Poor | Advanced section loss, deterioration, spalling or scour. |
| 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 Local over Twelve Mile Creek built?
It was built in 1985, making it 40 years old in 2025.
What condition is Local over Twelve Mile Creek in?
The National Bridge Inventory rates it in poor condition. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions. The last reported inspection was in September 2024.
How much traffic does Local over Twelve Mile Creek carry?
About 29 vehicles per day (2022 count).
How long is Local over Twelve Mile Creek?
The structure is 101 ft (30.8 m) long with a longest span of 20 ft (6.1 m) and a deck 24 ft wide.
Who owns Local over Twelve Mile Creek?
It is owned by the County Highway Agency.