I 17; Nb-Sb over 16th Street
FairMaricopa County, Arizona · 1.1 MI W JCT I 10 · Structure no. 00731
- Built
- 1962
- 63 years old, rebuilt 1984
- Condition
- Fair
- inspected August 2024
- Type
- Stringer/Multi-beam or Girder
- Prestressed Concrete
- Length
- 104 ft
- 2 main spans
- Daily traffic
- 117,057
- 2021 count
- Owner
- State
- State Highway Agency
About this bridge
I 17; Nb-Sb over 16th Street is a prestressed concrete stringer/multi-beam or girder carrying I 17; Nb-Sb over 16th Street in Maricopa County, Arizona. It was built in 1962 and reconstructed in 1984, so it is 63 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 117,057 vehicles a day, roughly 11% of them trucks, projected to reach 117,067 by 2041. The structure is 104 ft (31.7 m) long and 113 ft wide. If it were closed, the detour would be 1.2 mi (2 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 | 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; Nb-Sb over 16th Street built?
It was built in 1962, making it 63 years old in 2025. It was reconstructed in 1984.
What condition is I 17; Nb-Sb over 16th Street 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 August 2024.
How much traffic does I 17; Nb-Sb over 16th Street carry?
About 117,057 vehicles per day (2021 count), of which roughly 11% are trucks.
How long is I 17; Nb-Sb over 16th Street?
The structure is 104 ft (31.7 m) long with a longest span of 49 ft (14.9 m) and a deck 113 ft wide.
Who owns I 17; Nb-Sb over 16th Street?
It is owned by the State Highway Agency.