IRR Dirk Lay RD over I-10
GoodPinal County, Arizona · 17.7 MI W JCT I-8 · Structure no. 01150
- Built
- 1967
- 58 years old
- Condition
- Good
- inspected August 2024
- Type
- Stringer/Multi-beam or Girder
- Steel Continuous
- Length
- 470 ft
- 5 main spans
- Daily traffic
- 10
- 2022 count
- Owner
- State
- State Highway Agency
About this bridge
IRR Dirk Lay RD over I-10 is a steel continuous stringer/multi-beam or girder carrying IRR Dirk Lay RD over I-10 in Pinal County, Arizona. It was built in 1967, so it is 58 years old, older 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 10 vehicles a day, projected to reach 20 by 2042. The structure is 470 ft (143.3 m) long and 31 ft wide. If it were closed, the detour would be 13 mi (21 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 IRR Dirk Lay RD over I-10 built?
It was built in 1967, making it 58 years old in 2025.
What condition is IRR Dirk Lay RD 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 August 2024.
How much traffic does IRR Dirk Lay RD over I-10 carry?
About 10 vehicles per day (2022 count).
How long is IRR Dirk Lay RD over I-10?
The structure is 470 ft (143.3 m) long with a longest span of 98 ft (29.9 m) and a deck 31 ft wide.
Who owns IRR Dirk Lay RD over I-10?
It is owned by the State Highway Agency.