255th ST over Lake Keomah
GoodMahaska County, Iowa · 0.9 Mi.E of SR Queens Ave · Structure no. 000000000699091
- Built
- 2006
- 19 years old
- Condition
- Good
- inspected February 2024
- Type
- Stringer/Multi-beam or Girder
- Concrete
- Length
- 54 ft
- 1 main span
- Daily traffic
- —
- 2022 count
- Owner
- State
- State Park, Forest, or Reservation Agency
About this bridge
255th ST over Lake Keomah is a concrete stringer/multi-beam or girder carrying 255th ST over Lake Keomah in Mahaska County, Iowa. It was built in 2006, so it is 19 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.
No traffic count is recorded. The structure is 54 ft (16.5 m) long and 37 ft wide. If it were closed, the detour would be 3.7 mi (6 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 | 8 Very Good | No problems noted. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was 255th ST over Lake Keomah built?
It was built in 2006, making it 19 years old in 2025.
What condition is 255th ST over Lake Keomah 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 February 2024.
How much traffic does 255th ST over Lake Keomah carry?
No traffic count is recorded for this structure.
How long is 255th ST over Lake Keomah?
The structure is 54 ft (16.5 m) long with a longest span of 50 ft (15.2 m) and a deck 37 ft wide.
Who owns 255th ST over Lake Keomah?
It is owned by the State Park, Forest, or Reservation Agency.