140th ST over Keigley Branch
GoodStory County, Iowa · 085242701 · Structure no. 000000000316431
- Built
- 1977
- 48 years old
- Condition
- Good
- inspected November 2022
- Type
- Culvert
- Concrete Continuous
- Length
- 44 ft
- 3 main spans
- Daily traffic
- 34
- 2022 count
- Owner
- County
- County Highway Agency
About this bridge
140th ST over Keigley Branch is a concrete continuous culvert carrying 140th ST over Keigley Branch in Story County, Iowa. It was built in 1977, so it is 48 years old, older 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 34 vehicles a day, roughly 29% of them trucks, projected to reach 34 by 2043. The structure is 44 ft (13.4 m) long. If it were closed, the detour would be 3.1 mi (5 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 |
|---|---|---|
| Channel and channel protection | 6 Satisfactory | Structural elements show some minor deterioration. |
| Culvert | 7 Good | Some minor problems. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was 140th ST over Keigley Branch built?
It was built in 1977, making it 48 years old in 2025.
What condition is 140th ST over Keigley Branch 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 November 2022.
How much traffic does 140th ST over Keigley Branch carry?
About 34 vehicles per day (2022 count), of which roughly 29% are trucks.
How long is 140th ST over Keigley Branch?
The structure is 44 ft (13.4 m) long with a longest span of 12 ft (3.7 m).
Who owns 140th ST over Keigley Branch?
It is owned by the County Highway Agency.