Dupont Prospect ST over Whatcom Creek
FairWhatcom County, Washington · At Post Office · Structure no. 085527000000000
- Built
- 1920
- 105 years old, rebuilt 2002
- Condition
- Fair
- inspected April 2023
- Type
- Frame
- Concrete
- Length
- 68 ft
- 1 main span
- Daily traffic
- 8,700
- 2021 count
- Owner
- City
- City or Municipal Highway Agency
About this bridge
Dupont Prospect ST over Whatcom Creek is a concrete frame carrying Dupont Prospect ST over Whatcom Creek in Whatcom County, Washington. It was built in 1920 and reconstructed in 2002, so it is 105 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 6 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 8,700 vehicles a day, roughly 5% of them trucks, projected to reach 12,000 by 2043. The structure is 68 ft (20.7 m) long and 51 ft wide. If it were closed, the detour would be 1.2 mi (2 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 | 6 Satisfactory | Structural elements show some minor deterioration. |
| Superstructure | 6 Satisfactory | Structural elements show some minor deterioration. |
| Substructure | 7 Good | Some minor problems. |
| Channel and channel protection | 8 Very Good | No problems noted. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was Dupont Prospect ST over Whatcom Creek built?
It was built in 1920, making it 105 years old in 2025. It was reconstructed in 2002.
What condition is Dupont Prospect ST over Whatcom Creek 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 April 2023.
How much traffic does Dupont Prospect ST over Whatcom Creek carry?
About 8,700 vehicles per day (2021 count), of which roughly 5% are trucks.
How long is Dupont Prospect ST over Whatcom Creek?
The structure is 68 ft (20.7 m) long with a longest span of 60 ft (18.3 m) and a deck 51 ft wide.
Who owns Dupont Prospect ST over Whatcom Creek?
It is owned by the City or Municipal Highway Agency.