Southwest Overpass over Sky Harbor Boulevard WB
FairMaricopa County, Arizona · Sky Harbor Airport Term 3 · Structure no. 08526
- Built
- 1979
- 46 years old
- Condition
- Fair
- inspected February 2023
- Type
- Girder and Floorbeam System
- Concrete
- Length
- 126 ft
- 2 main spans
- Daily traffic
- 100
- 2020 count
- Owner
- City
- City or Municipal Highway Agency
About this bridge
Southwest Overpass over Sky Harbor Boulevard WB is a concrete girder and floorbeam system carrying Southwest Overpass over Sky Harbor Boulevard WB in Maricopa County, Arizona. It was built in 1979, so it is 46 years old, younger 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 100 vehicles a day, roughly 1% of them trucks, projected to reach 110 by 2040. The structure is 126 ft (38.4 m) long and 34 ft wide. If it were closed, the detour would be 1.9 mi (3 km).
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 | 6 Satisfactory | Structural elements show some minor deterioration. |
| Substructure | 6 Satisfactory | Structural elements show some minor deterioration. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was Southwest Overpass over Sky Harbor Boulevard WB built?
It was built in 1979, making it 46 years old in 2025.
What condition is Southwest Overpass over Sky Harbor Boulevard WB 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 February 2023.
How much traffic does Southwest Overpass over Sky Harbor Boulevard WB carry?
About 100 vehicles per day (2020 count), of which roughly 1% are trucks.
How long is Southwest Overpass over Sky Harbor Boulevard WB?
The structure is 126 ft (38.4 m) long with a longest span of 67 ft (20.4 m) and a deck 34 ft wide.
Who owns Southwest Overpass over Sky Harbor Boulevard WB?
It is owned by the City or Municipal Highway Agency.