EB US 20 over Ia 150
GoodBuchanan County, Iowa · At JCT.150 · Structure no. 000000000603620
- Built
- 1978
- 47 years old
- Condition
- Good
- inspected May 2023
- Type
- Stringer/Multi-beam or Girder
- Prestressed Concrete
- Length
- 211 ft
- 3 main spans
- Daily traffic
- 3,100
- 2022 count
- Owner
- State
- State Highway Agency
About this bridge
EB US 20 over Ia 150 is a prestressed concrete stringer/multi-beam or girder carrying EB US 20 over Ia 150 in Buchanan County, Iowa. It was built in 1978, so it is 47 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 3,100 vehicles a day, roughly 30% of them trucks, projected to reach 3,100 by 2042. The structure is 211 ft (64.3 m) long and 43 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 EB US 20 over Ia 150 built?
It was built in 1978, making it 47 years old in 2025.
What condition is EB US 20 over Ia 150 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 May 2023.
How much traffic does EB US 20 over Ia 150 carry?
About 3,100 vehicles per day (2022 count), of which roughly 30% are trucks.
How long is EB US 20 over Ia 150?
The structure is 211 ft (64.3 m) long with a longest span of 96 ft (29.3 m) and a deck 43 ft wide.
Who owns EB US 20 over Ia 150?
It is owned by the State Highway Agency.