NB SR 539 over Nooksack R
Poor Condition76 years old7,931 vehicles/day
Location
| State | Washington |
| County | Whatcom |
| Location | 2.0 N Jct SR 544 |
| Carries | NB SR 539 |
| Crosses | Nooksack R |
| Coordinates | 48.91927, -122.48554 |
Condition Ratings
| Overall Condition | Poor |
| Deck | 7 (Good) |
| Superstructure | 4 (Poor) |
| Substructure | 7 (Good) |
| Channel/Waterway | 7 (Good) |
| Scour Critical | 5 — Stable for scour |
Physical Characteristics
| Material | Steel |
| Design | Truss - Thru |
| Total Length | 576.1 ft (175.6 m) |
| Max Span | 339.9 ft (103.6 m) |
| Deck Width | 34.1 ft (10.4 m) |
| Deck Area | 1826.2 sq m |
| Main Spans | 1 |
| Year Built | 1950 |
Traffic
| Avg Daily Traffic | 7,931 (2023) |
| Truck Traffic | 6% |
| Lanes On Bridge | 2 |
Inspection & Ownership
| Last Inspection | 523 |
| Inspection Frequency | Every 24 months |
| Owner | State Highway Agency |
| Historical Significance | Bridge is eligible for the National Register |
| Structure Number | 0003802B0000000 |