11th ST over US 30
GoodStory County, Iowa · 0.9 Mile E of JCT SR S14 · Structure no. 000000000601635
- Built
- 1995
- 30 years old
- Condition
- Good
- inspected November 2024
- Type
- Stringer/Multi-beam or Girder
- Prestressed Concrete
- Length
- 220 ft
- 2 main spans
- Daily traffic
- 1,997
- 2022 count
- Owner
- State
- State Highway Agency
About this bridge
11th ST over US 30 is a prestressed concrete stringer/multi-beam or girder carrying 11th ST over US 30 in Story County, Iowa. It was built in 1995, so it is 30 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 1,997 vehicles a day, projected to reach 1,997 by 2044. The structure is 220 ft (67.1 m) long and 45 ft wide. If it were closed, the detour would be 1.2 mi (2 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 | 7 Good | Some minor problems. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was 11th ST over US 30 built?
It was built in 1995, making it 30 years old in 2025.
What condition is 11th ST over US 30 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 2024.
How much traffic does 11th ST over US 30 carry?
About 1,997 vehicles per day (2022 count).
How long is 11th ST over US 30?
The structure is 220 ft (67.1 m) long with a longest span of 110 ft (33.5 m) and a deck 45 ft wide.
Who owns 11th ST over US 30?
It is owned by the State Highway Agency.