I 10; WB over Marana Road
FairPima County, Arizona · 25.4 MI SE JCT SR 87 · Structure no. 00774
- Built
- 1963
- 62 years old, rebuilt 2005
- Condition
- Fair
- inspected December 2024
- Type
- Stringer/Multi-beam or Girder
- Prestressed Concrete
- Length
- 127 ft
- 3 main spans
- Daily traffic
- 33,035
- 2022 count
- Owner
- State
- State Highway Agency
About this bridge
I 10; WB over Marana Road is a prestressed concrete stringer/multi-beam or girder carrying I 10; WB over Marana Road in Pima County, Arizona. It was built in 1963 and reconstructed in 2005, so it is 62 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 5 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 33,035 vehicles a day, roughly 19% of them trucks, projected to reach 33,045 by 2042. The structure is 127 ft (38.7 m) long and 62 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 | 5 Fair | All primary structural elements are sound but may have minor section loss, cracking, spalling or scour. |
| Substructure | 7 Good | Some minor problems. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was I 10; WB over Marana Road built?
It was built in 1963, making it 62 years old in 2025. It was reconstructed in 2005.
What condition is I 10; WB over Marana Road 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 December 2024.
How much traffic does I 10; WB over Marana Road carry?
About 33,035 vehicles per day (2022 count), of which roughly 19% are trucks.
How long is I 10; WB over Marana Road?
The structure is 127 ft (38.7 m) long with a longest span of 63 ft (19.2 m) and a deck 62 ft wide.
Who owns I 10; WB over Marana Road?
It is owned by the State Highway Agency.