Road # 28 over N.F. Stilliguamish River
GoodSkagit County, Washington · Milepost 4.8 Rd. 28 · Structure no. 060502000001634
- Built
- 1994
- 31 years old
- Condition
- Good
- inspected October 2021
- Type
- Stringer/Multi-beam or Girder
- Prestressed Concrete
- Length
- 103 ft
- 1 main span
- Daily traffic
- 60
- 1992 count
- Owner
- Federal
- U.S. Forest Service
About this bridge
Road # 28 over N.F. Stilliguamish River is a prestressed concrete stringer/multi-beam or girder carrying Road # 28 over N.F. Stilliguamish River in Skagit County, Washington. It was built in 1994, so it is 31 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 60 vehicles a day, projected to reach 90 by 2045. The structure is 103 ft (31.3 m) long and 16 ft wide. If it were closed, the detour would be 98.2 mi (158 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 | 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 Road # 28 over N.F. Stilliguamish River built?
It was built in 1994, making it 31 years old in 2025.
What condition is Road # 28 over N.F. Stilliguamish 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 October 2021.
How much traffic does Road # 28 over N.F. Stilliguamish River carry?
About 60 vehicles per day (1992 count).
How long is Road # 28 over N.F. Stilliguamish River?
The structure is 103 ft (31.3 m) long with a longest span of 100 ft (30.5 m) and a deck 16 ft wide.
Who owns Road # 28 over N.F. Stilliguamish River?
It is owned by the U.S. Forest Service.