Loop 101 over Northern Ave
FairMaricopa County, Arizona · 8.06 MI N JCT I-10 · Structure no. 02034
- Built
- 1987
- 38 years old
- Condition
- Fair
- inspected April 2023
- Type
- Box Beam or Girders - Single or Spread
- Prestressed Concrete Continuous
- Length
- 226 ft
- 2 main spans
- Daily traffic
- 145,584
- 2021 count
- Owner
- State
- State Highway Agency
About this bridge
Loop 101 over Northern Ave is a prestressed concrete continuous box beam or girders - single or spread carrying Loop 101 over Northern Ave in Maricopa County, Arizona. It was built in 1987, so it is 38 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 145,584 vehicles a day, roughly 7% of them trucks, projected to reach 145,594 by 2041. The structure is 226 ft (68.9 m) long and 145 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 | 7 Good | Some minor problems. |
| Superstructure | 6 Satisfactory | Structural elements show some minor deterioration. |
| Substructure | 7 Good | Some minor problems. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was Loop 101 over Northern Ave built?
It was built in 1987, making it 38 years old in 2025.
What condition is Loop 101 over Northern Ave 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 2023.
How much traffic does Loop 101 over Northern Ave carry?
About 145,584 vehicles per day (2021 count), of which roughly 7% are trucks.
How long is Loop 101 over Northern Ave?
The structure is 226 ft (68.9 m) long with a longest span of 112 ft (34.1 m) and a deck 145 ft wide.
Who owns Loop 101 over Northern Ave?
It is owned by the State Highway Agency.