290th ST over Mason Creek
GoodScott County, Iowa · 080E32101 · Structure no. 000000000303521
- Built
- 2009
- 16 years old
- Condition
- Good
- inspected April 2023
- Type
- Slab
- Concrete Continuous
- Length
- 70 ft
- 3 main spans
- Daily traffic
- 510
- 2022 count
- Owner
- County
- County Highway Agency
About this bridge
290th ST over Mason Creek is a concrete continuous slab carrying 290th ST over Mason Creek in Scott County, Iowa. It was built in 2009, so it is 16 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 8 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.
It carries about 510 vehicles a day, roughly 13% of them trucks, projected to reach 510 by 2043. The structure is 70 ft (21.3 m) long and 33 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 | 8 Very Good | No problems noted. |
| Superstructure | 8 Very Good | No problems noted. |
| 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 290th ST over Mason Creek built?
It was built in 2009, making it 16 years old in 2025.
What condition is 290th ST over Mason 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 2023.
How much traffic does 290th ST over Mason Creek carry?
About 510 vehicles per day (2022 count), of which roughly 13% are trucks.
How long is 290th ST over Mason Creek?
The structure is 70 ft (21.3 m) long with a longest span of 28 ft (8.5 m) and a deck 33 ft wide.
Who owns 290th ST over Mason Creek?
It is owned by the County Highway Agency.