EB I-680 over I-29
GoodPottawattamie County, Iowa · At W Jct. I-29 · Structure no. 000000000602680
- Built
- 1977
- 48 years old
- Condition
- Good
- inspected August 2024
- Type
- Stringer/Multi-beam or Girder
- Prestressed Concrete
- Length
- 261 ft
- 4 main spans
- Daily traffic
- 5,050
- 2022 count
- Owner
- State
- State Highway Agency
About this bridge
EB I-680 over I-29 is a prestressed concrete stringer/multi-beam or girder carrying EB I-680 over I-29 in Pottawattamie 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 5,050 vehicles a day, roughly 10% of them trucks, projected to reach 5,050 by 2044. The structure is 261 ft (79.6 m) long and 64 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 I-680 over I-29 built?
It was built in 1977, making it 48 years old in 2025.
What condition is EB I-680 over I-29 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 August 2024.
How much traffic does EB I-680 over I-29 carry?
About 5,050 vehicles per day (2022 count), of which roughly 10% are trucks.
How long is EB I-680 over I-29?
The structure is 261 ft (79.6 m) long with a longest span of 82 ft (25 m) and a deck 64 ft wide.
Who owns EB I-680 over I-29?
It is owned by the State Highway Agency.