SB I-29 over Pony Creek
FairPottawattamie County, Iowa · 2.3 Mi. N of Ia 370 · Structure no. 000000000044560
- Built
- 1968
- 57 years old
- Condition
- Fair
- inspected August 2024
- Type
- Stringer/Multi-beam or Girder
- Prestressed Concrete
- Length
- 175 ft
- 3 main spans
- Daily traffic
- 12,100
- 2022 count
- Owner
- State
- State Highway Agency
About this bridge
SB I-29 over Pony Creek is a prestressed concrete stringer/multi-beam or girder carrying SB I-29 over Pony Creek in Pottawattamie County, Iowa. It was built in 1968, so it is 57 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 6 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 12,100 vehicles a day, roughly 23% of them trucks, projected to reach 12,100 by 2044. The structure is 175 ft (53.3 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
The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.
| Component | Rating | Meaning |
|---|---|---|
| Deck | 6 Satisfactory | Structural elements show some minor deterioration. |
| Superstructure | 7 Good | Some minor problems. |
| Substructure | 7 Good | Some minor problems. |
| 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 SB I-29 over Pony Creek built?
It was built in 1968, making it 57 years old in 2025.
What condition is SB I-29 over Pony Creek 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 SB I-29 over Pony Creek carry?
About 12,100 vehicles per day (2022 count), of which roughly 23% are trucks.
How long is SB I-29 over Pony Creek?
The structure is 175 ft (53.3 m) long with a longest span of 69 ft (21 m) and a deck 43 ft wide.
Who owns SB I-29 over Pony Creek?
It is owned by the State Highway Agency.