Argonne Road over Spokane River
GoodSpokane County, Washington · 0.6 N Trent Road · Structure no. 087205000000000
- Built
- 2004
- 21 years old
- Condition
- Good
- inspected September 2023
- Type
- Box Beam or Girders - Multiple
- Prestressed Concrete Continuous
- Length
- 339 ft
- 3 main spans
- Daily traffic
- 32,264
- 2019 count
- Owner
- County
- County Highway Agency
About this bridge
Argonne Road over Spokane River is a prestressed concrete continuous box beam or girders - multiple carrying Argonne Road over Spokane River in Spokane County, Washington. It was built in 2004, so it is 21 years old, younger 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 32,264 vehicles a day, roughly 25% of them trucks, projected to reach 46,460 by 2041. The structure is 339 ft (103.3 m) long and 73 ft wide. If it were closed, the detour would be 11.8 mi (19 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. |
| Channel and channel protection | 8 Very Good | No problems noted. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was Argonne Road over Spokane River built?
It was built in 2004, making it 21 years old in 2025.
What condition is Argonne Road over Spokane River 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 September 2023.
How much traffic does Argonne Road over Spokane River carry?
About 32,264 vehicles per day (2019 count), of which roughly 25% are trucks.
How long is Argonne Road over Spokane River?
The structure is 339 ft (103.3 m) long with a longest span of 160 ft (48.8 m) and a deck 73 ft wide.
Who owns Argonne Road over Spokane River?
It is owned by the County Highway Agency.