G37 over I-29
FairPottawattamie County, Iowa · At W Jct. I-29 · Structure no. 000000000044921
- Built
- 1977
- 48 years old
- Condition
- Fair
- inspected August 2024
- Type
- Stringer/Multi-beam or Girder
- Prestressed Concrete
- Length
- 261 ft
- 4 main spans
- Daily traffic
- 1,245
- 2022 count
- Owner
- State
- State Highway Agency
About this bridge
G37 over I-29 is a prestressed concrete stringer/multi-beam or girder carrying G37 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 fair condition with a lowest component rating of 5 out of 9. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.
It carries about 1,245 vehicles a day, roughly 7% of them trucks, projected to reach 1,245 by 2044. The structure is 261 ft (79.6 m) long and 64 ft wide. If it were closed, the detour would be 8.7 mi (14 km).
Location
Open in Google MapsCondition and inspection
The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.
| Component | Rating | Meaning |
|---|---|---|
| Deck | 5 Fair | All primary structural elements are sound but may have minor section loss, cracking, spalling or scour. |
| Superstructure | 8 Very Good | No problems noted. |
| Substructure | 7 Good | Some minor problems. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was G37 over I-29 built?
It was built in 1977, making it 48 years old in 2025.
What condition is G37 over I-29 in?
The National Bridge Inventory rates it in fair condition. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound. The last reported inspection was in August 2024.
How much traffic does G37 over I-29 carry?
About 1,245 vehicles per day (2022 count), of which roughly 7% are trucks.
How long is G37 over I-29?
The structure is 261 ft (79.6 m) long with a longest span of 85 ft (25.9 m) and a deck 64 ft wide.
Who owns G37 over I-29?
It is owned by the State Highway Agency.