Bylsma RD over Drainage Ditch
FairWhatcom County, Washington · 00.7 N E. Wiser Lk. · Structure no. 084335000000000
- Built
- 1951
- 74 years old, rebuilt 1979
- Condition
- Fair
- inspected January 2023
- Type
- Channel Beam
- Concrete
- Length
- 31 ft
- 1 main span
- Daily traffic
- 72
- 2023 count
- Owner
- County
- County Highway Agency
About this bridge
Bylsma RD over Drainage Ditch is a concrete channel beam carrying Bylsma RD over Drainage Ditch in Whatcom County, Washington. It was built in 1951 and reconstructed in 1979, so it is 74 years old, older than the Washington average of 49.8 years.
The most recent inspection reported to the Federal Highway Administration rates it in fair condition with a lowest component rating of 5 out of 9. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.
It carries about 72 vehicles a day, roughly 4% of them trucks, projected to reach 150 by 2045. The structure is 31 ft (9.4 m) long and 26 ft wide. If it were closed, the detour would be 5 mi (8 km).
Location
Open in Google MapsCondition and inspection
The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.
| Component | Rating | Meaning |
|---|---|---|
| Deck | 7 Good | Some minor problems. |
| Superstructure | 7 Good | Some minor problems. |
| Substructure | 5 Fair | All primary structural elements are sound but may have minor section loss, cracking, spalling or scour. |
| Channel and channel protection | 8 Very Good | No problems noted. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was Bylsma RD over Drainage Ditch built?
It was built in 1951, making it 74 years old in 2025. It was reconstructed in 1979.
What condition is Bylsma RD over Drainage Ditch in?
The National Bridge Inventory rates it in fair condition. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound. The last reported inspection was in January 2023.
How much traffic does Bylsma RD over Drainage Ditch carry?
About 72 vehicles per day (2023 count), of which roughly 4% are trucks.
How long is Bylsma RD over Drainage Ditch?
The structure is 31 ft (9.4 m) long with a longest span of 31 ft (9.4 m) and a deck 26 ft wide.
Who owns Bylsma RD over Drainage Ditch?
It is owned by the County Highway Agency.