SB I-29 over Waubonsie Ditch
GoodFremont County, Iowa · 0.5 Mi. S of Jct. SR L31 · Structure no. 000000000025581
- Built
- 2011
- 14 years old
- Condition
- Good
- inspected October 2024
- Type
- Stringer/Multi-beam or Girder
- Prestressed Concrete
- Length
- 247 ft
- 3 main spans
- Daily traffic
- 6,450
- 2022 count
- Owner
- State
- State Highway Agency
About this bridge
SB I-29 over Waubonsie Ditch is a prestressed concrete stringer/multi-beam or girder carrying SB I-29 over Waubonsie Ditch in Fremont County, Iowa. It was built in 2011, so it is 14 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 6,450 vehicles a day, roughly 32% of them trucks, projected to reach 6,450 by 2044. The structure is 247 ft (75.3 m) long and 43 ft wide.
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 | 8 Very Good | No problems noted. |
| Substructure | 8 Very Good | No problems noted. |
| 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 Waubonsie Ditch built?
It was built in 2011, making it 14 years old in 2025.
What condition is SB I-29 over Waubonsie Ditch 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 October 2024.
How much traffic does SB I-29 over Waubonsie Ditch carry?
About 6,450 vehicles per day (2022 count), of which roughly 32% are trucks.
How long is SB I-29 over Waubonsie Ditch?
The structure is 247 ft (75.3 m) long with a longest span of 97 ft (29.6 m) and a deck 43 ft wide.
Who owns SB I-29 over Waubonsie Ditch?
It is owned by the State Highway Agency.