31st Avenue over I 10
GoodMaricopa County, Arizona · 1.0 MI West of JCT I 17 · Structure no. 01934
- Built
- 1985
- 40 years old
- Condition
- Good
- inspected March 2023
- Type
- Box Beam or Girders - Single or Spread
- Prestressed Concrete Continuous
- Length
- 333 ft
- 2 main spans
- Daily traffic
- 3,289
- 2022 count
- Owner
- State
- State Highway Agency
About this bridge
31st Avenue over I 10 is a prestressed concrete continuous box beam or girders - single or spread carrying 31st Avenue over I 10 in Maricopa County, Arizona. It was built in 1985, so it is 40 years old, younger than the Arizona average of 47.8 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 3,289 vehicles a day, roughly 5% of them trucks, projected to reach 3,299 by 2042. The structure is 333 ft (101.5 m) long and 61 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 31st Avenue over I 10 built?
It was built in 1985, making it 40 years old in 2025.
What condition is 31st Avenue over I 10 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 March 2023.
How much traffic does 31st Avenue over I 10 carry?
About 3,289 vehicles per day (2022 count), of which roughly 5% are trucks.
How long is 31st Avenue over I 10?
The structure is 333 ft (101.5 m) long with a longest span of 164 ft (50 m) and a deck 61 ft wide.
Who owns 31st Avenue over I 10?
It is owned by the State Highway Agency.