I-5 over I-5 Drainage
GoodSkagit County, Washington · 3.8 N Snohomish CO · Structure no. 0008650C0000000
- Built
- 1970
- 55 years old
- Condition
- Good
- inspected October 2021
- Type
- Culvert
- Steel
- Length
- 21 ft
- 1 main span
- Daily traffic
- 36,919
- 2023 count
- Owner
- State
- State Highway Agency
About this bridge
I-5 over I-5 Drainage is a steel culvert carrying I-5 over I-5 Drainage in Skagit County, Washington. It was built in 1970, so it is 55 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 36,919 vehicles a day, roughly 10% of them trucks, projected to reach 53,640 by 2039. The structure is 21 ft (6.4 m) long.
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 |
|---|---|---|
| Channel and channel protection | 8 Very Good | No problems noted. |
| Culvert | 7 Good | Some minor problems. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was I-5 over I-5 Drainage built?
It was built in 1970, making it 55 years old in 2025.
What condition is I-5 over I-5 Drainage 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 I-5 over I-5 Drainage carry?
About 36,919 vehicles per day (2023 count), of which roughly 10% are trucks.
How long is I-5 over I-5 Drainage?
The structure is 21 ft (6.4 m) long with a longest span of 21 ft (6.4 m).
Who owns I-5 over I-5 Drainage?
It is owned by the State Highway Agency.