South Skagit HWY over Davis Slough
GoodSkagit County, Washington · 13.9 E JCT SR-9 · Structure no. 088739000000000
- Built
- 2014
- 11 years old
- Condition
- Good
- inspected June 2023
- Type
- Stringer/Multi-beam or Girder
- Prestressed Concrete
- Length
- 63 ft
- 1 main span
- Daily traffic
- 610
- 2023 count
- Owner
- County
- County Highway Agency
About this bridge
South Skagit HWY over Davis Slough is a prestressed concrete stringer/multi-beam or girder carrying South Skagit HWY over Davis Slough in Skagit County, Washington. It was built in 2014, so it is 11 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 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 610 vehicles a day, roughly 5% of them trucks, projected to reach 744 by 2043. The structure is 63 ft (19.3 m) long and 38 ft wide. If it were closed, the detour would be 49.7 mi (80 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 South Skagit HWY over Davis Slough built?
It was built in 2014, making it 11 years old in 2025.
What condition is South Skagit HWY over Davis Slough 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 June 2023.
How much traffic does South Skagit HWY over Davis Slough carry?
About 610 vehicles per day (2023 count), of which roughly 5% are trucks.
How long is South Skagit HWY over Davis Slough?
The structure is 63 ft (19.3 m) long with a longest span of 57 ft (17.4 m) and a deck 38 ft wide.
Who owns South Skagit HWY over Davis Slough?
It is owned by the County Highway Agency.