Pioneer HWY over Big Ditch
GoodSkagit County, Washington · 0.23 E JCT Milltown Road · Structure no. 0013135B0000000
- Built
- 1987
- 38 years old
- Condition
- Good
- inspected July 2024
- Type
- Slab
- Prestressed Concrete Continuous
- Length
- 81 ft
- 2 main spans
- Daily traffic
- 9,442
- 2021 count
- Owner
- County
- County Highway Agency
About this bridge
Pioneer HWY over Big Ditch is a prestressed concrete continuous slab carrying Pioneer HWY over Big Ditch in Skagit County, Washington. It was built in 1987, so it is 38 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 9,442 vehicles a day, roughly 9% of them trucks, projected to reach 17,053 by 2041. The structure is 81 ft (24.7 m) long and 40 ft wide. If it were closed, the detour would be 5 mi (8 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 Pioneer HWY over Big Ditch built?
It was built in 1987, making it 38 years old in 2025.
What condition is Pioneer HWY over Big Ditch 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 Pioneer HWY over Big Ditch carry?
About 9,442 vehicles per day (2021 count), of which roughly 9% are trucks.
How long is Pioneer HWY over Big Ditch?
The structure is 81 ft (24.7 m) long with a longest span of 40 ft (12.2 m) and a deck 40 ft wide.
Who owns Pioneer HWY over Big Ditch?
It is owned by the County Highway Agency.