I-90 over S Altamont ST
GoodSpokane County, Washington · 1.7 E JCT US 2 · Structure no. 0005453A0000000
- Built
- 1957
- 68 years old
- Condition
- Good
- inspected October 2024
- Type
- Slab
- Concrete
- Length
- 66 ft
- 1 main span
- Daily traffic
- 58,628
- 2023 count
- Owner
- State
- State Highway Agency
About this bridge
I-90 over S Altamont ST is a concrete slab carrying I-90 over S Altamont ST in Spokane County, Washington. It was built in 1957, so it is 68 years old, older than the Washington average of 49.8 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 58,628 vehicles a day, roughly 7% of them trucks, projected to reach 76,999 by 2039. The structure is 66 ft (20.1 m) long and 107 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-90 over S Altamont ST built?
It was built in 1957, making it 68 years old in 2025.
What condition is I-90 over S Altamont ST 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 October 2024.
How much traffic does I-90 over S Altamont ST carry?
About 58,628 vehicles per day (2023 count), of which roughly 7% are trucks.
How long is I-90 over S Altamont ST?
The structure is 66 ft (20.1 m) long with a longest span of 61 ft (18.6 m) and a deck 107 ft wide.
Who owns I-90 over S Altamont ST?
It is owned by the State Highway Agency.