SR 21 over Dry Coulee
GoodFranklin County, Washington · 1.3 N JCT SR 260 · Structure no. 0007173A0000000
- Built
- 1963
- 62 years old
- Condition
- Good
- inspected July 2024
- Type
- Slab
- Concrete Continuous
- Length
- 52 ft
- 3 main spans
- Daily traffic
- 165
- 2023 count
- Owner
- State
- State Highway Agency
About this bridge
SR 21 over Dry Coulee is a concrete continuous slab carrying SR 21 over Dry Coulee in Franklin County, Washington. It was built in 1963, so it is 62 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 8 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.
It carries about 165 vehicles a day, roughly 35% of them trucks, projected to reach 198 by 2039. The structure is 52 ft (15.8 m) long and 26 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 | 8 Very Good | No problems noted. |
| Superstructure | 8 Very Good | No problems noted. |
| Substructure | 8 Very Good | No problems noted. |
| Channel and channel protection | 8 Very Good | No problems noted. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was SR 21 over Dry Coulee built?
It was built in 1963, making it 62 years old in 2025.
What condition is SR 21 over Dry Coulee 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 July 2024.
How much traffic does SR 21 over Dry Coulee carry?
About 165 vehicles per day (2023 count), of which roughly 35% are trucks.
How long is SR 21 over Dry Coulee?
The structure is 52 ft (15.8 m) long with a longest span of 21 ft (6.4 m) and a deck 26 ft wide.
Who owns SR 21 over Dry Coulee?
It is owned by the State Highway Agency.