I-10 EB & WB over 18th Street
GoodPima County, Arizona · 1.2 MI N JCT I-19 · Structure no. 02857
- Built
- 2009
- 16 years old
- Condition
- Good
- inspected December 2024
- Type
- Box Beam or Girders - Single or Spread
- Prestressed Concrete
- Length
- 126 ft
- 1 main span
- Daily traffic
- 209,269
- 2022 count
- Owner
- State
- State Highway Agency
About this bridge
I-10 EB & WB over 18th Street is a prestressed concrete box beam or girders - single or spread carrying I-10 EB & WB over 18th Street in Pima County, Arizona. It was built in 2009, so it is 16 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 209,269 vehicles a day, roughly 9% of them trucks, projected to reach 209,279 by 2042. The structure is 126 ft (38.4 m) long and 191 ft wide. If it were closed, the detour would be 1.2 mi (2 km).
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 | 7 Good | Some minor problems. |
| Substructure | 7 Good | Some minor problems. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was I-10 EB & WB over 18th Street built?
It was built in 2009, making it 16 years old in 2025.
What condition is I-10 EB & WB over 18th Street 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 December 2024.
How much traffic does I-10 EB & WB over 18th Street carry?
About 209,269 vehicles per day (2022 count), of which roughly 9% are trucks.
How long is I-10 EB & WB over 18th Street?
The structure is 126 ft (38.4 m) long with a longest span of 121 ft (36.9 m) and a deck 191 ft wide.
Who owns I-10 EB & WB over 18th Street?
It is owned by the State Highway Agency.