I 17 over Thunderbird RD
FairMaricopa County, Arizona · 9.3 MI N JCT US 60 · Structure no. 00835
- Built
- 1965
- 60 years old, rebuilt 1996
- Condition
- Fair
- inspected April 2024
- Type
- Tee Beam
- Concrete Continuous
- Length
- 144 ft
- 4 main spans
- Daily traffic
- 178,212
- 2024 count
- Owner
- State
- State Highway Agency
About this bridge
I 17 over Thunderbird RD is a concrete continuous tee beam carrying I 17 over Thunderbird RD in Maricopa County, Arizona. It was built in 1965 and reconstructed in 1996, so it is 60 years old, older than the Arizona average of 47.8 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 178,212 vehicles a day, roughly 7% of them trucks, projected to reach 178,222 by 2042. The structure is 144 ft (43.9 m) long and 147 ft wide.
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 | 6 Satisfactory | Structural elements show some minor deterioration. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was I 17 over Thunderbird RD built?
It was built in 1965, making it 60 years old in 2025. It was reconstructed in 1996.
What condition is I 17 over Thunderbird RD 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 April 2024.
How much traffic does I 17 over Thunderbird RD carry?
About 178,212 vehicles per day (2024 count), of which roughly 7% are trucks.
How long is I 17 over Thunderbird RD?
The structure is 144 ft (43.9 m) long with a longest span of 49 ft (14.9 m) and a deck 147 ft wide.
Who owns I 17 over Thunderbird RD?
It is owned by the State Highway Agency.