Allis Road over I-29
GoodMills County, Iowa · 1.8 Mi. S of Jct. SR H-10 · Structure no. 000000000036360
- Built
- 1970
- 55 years old
- Condition
- Good
- inspected April 2023
- Type
- Stringer/Multi-beam or Girder
- Prestressed Concrete
- Length
- 228 ft
- 4 main spans
- Daily traffic
- 79
- 2022 count
- Owner
- State
- State Highway Agency
About this bridge
Allis Road over I-29 is a prestressed concrete stringer/multi-beam or girder carrying Allis Road over I-29 in Mills County, Iowa. It was built in 1970, so it is 55 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 79 vehicles a day, projected to reach 79 by 2042. The structure is 228 ft (69.5 m) long and 31 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. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was Allis Road over I-29 built?
It was built in 1970, making it 55 years old in 2025.
What condition is Allis Road 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 April 2023.
How much traffic does Allis Road over I-29 carry?
About 79 vehicles per day (2022 count).
How long is Allis Road over I-29?
The structure is 228 ft (69.5 m) long with a longest span of 69 ft (21 m) and a deck 31 ft wide.
Who owns Allis Road over I-29?
It is owned by the State Highway Agency.