303L over Northern Avenue
GoodMaricopa County, Arizona · 6 Miles N of I-10 · Structure no. 20007
- Built
- 2013
- 12 years old
- Condition
- Good
- inspected June 2023
- Type
- Stringer/Multi-beam or Girder
- Prestressed Concrete Continuous
- Length
- 233 ft
- 2 main spans
- Daily traffic
- 28,808
- 2021 count
- Owner
- State
- State Highway Agency
About this bridge
303L over Northern Avenue is a prestressed concrete continuous stringer/multi-beam or girder carrying 303L over Northern Avenue in Maricopa County, Arizona. It was built in 2013, so it is 12 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 28,808 vehicles a day, roughly 11% of them trucks, projected to reach 28,818 by 2041. The structure is 233 ft (71 m) long and 110 ft wide.
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 | 8 Very Good | No problems noted. |
| Substructure | 7 Good | Some minor problems. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was 303L over Northern Avenue built?
It was built in 2013, making it 12 years old in 2025.
What condition is 303L over Northern Avenue 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 June 2023.
How much traffic does 303L over Northern Avenue carry?
About 28,808 vehicles per day (2021 count), of which roughly 11% are trucks.
How long is 303L over Northern Avenue?
The structure is 233 ft (71 m) long with a longest span of 118 ft (36 m) and a deck 110 ft wide.
Who owns 303L over Northern Avenue?
It is owned by the State Highway Agency.