L66 340th ST over Keg Creek
GoodPottawattamie County, Iowa · 000000000 · Structure no. 000000000008291
- Built
- 2018
- 7 years old
- Condition
- Good
- inspected April 2022
- Type
- Slab
- Concrete Continuous
- Length
- 133 ft
- 3 main spans
- Daily traffic
- 330
- 2022 count
- Owner
- County
- County Highway Agency
About this bridge
L66 340th ST over Keg Creek is a concrete continuous slab carrying L66 340th ST over Keg Creek in Pottawattamie County, Iowa. It was built in 2018, so it is 7 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 330 vehicles a day, roughly 11% of them trucks, projected to reach 330 by 2043. The structure is 133 ft (40.5 m) long and 33 ft wide. If it were closed, the detour would be 8.1 mi (13 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 | 8 Very Good | No problems noted. |
| 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 L66 340th ST over Keg Creek built?
It was built in 2018, making it 7 years old in 2025.
What condition is L66 340th ST over Keg 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 April 2022.
How much traffic does L66 340th ST over Keg Creek carry?
About 330 vehicles per day (2022 count), of which roughly 11% are trucks.
How long is L66 340th ST over Keg Creek?
The structure is 133 ft (40.5 m) long with a longest span of 51 ft (15.5 m) and a deck 33 ft wide.
Who owns L66 340th ST over Keg Creek?
It is owned by the County Highway Agency.