I-5 over Nooksack River
Fair Condition71 years old25,301 vehicles/day
Location
| State | Washington |
| County | Whatcom |
| Location | 6.9 N Jct SR 539 |
| Carries | I-5 |
| Crosses | Nooksack River |
| Coordinates | 48.85278, -122.58161 |
Condition Ratings
| Overall Condition | Fair |
| Deck | 7 (Good) |
| Superstructure | 6 (Satisfactory) |
| Substructure | 7 (Good) |
| Channel/Waterway | 7 (Good) |
| Scour Critical | 5 — Stable for scour |
Physical Characteristics
| Material | Steel |
| Design | Truss - Thru |
| Total Length | 905.8 ft (276.1 m) |
| Max Span | 220.1 ft (67.1 m) |
| Deck Width | 32.8 ft (10 m) |
| Deck Area | 2,761 sq m |
| Main Spans | 1 |
| Year Built | 1955 |
Traffic
| Avg Daily Traffic | 25,301 (2023) |
| Truck Traffic | 7% |
| Lanes On Bridge | 2 |
Inspection & Ownership
| Last Inspection | 424 |
| Inspection Frequency | Every 24 months |
| Owner | State Highway Agency |
| Historical Significance | Bridge is not eligible for the National Register |
| Structure Number | 0004856A0000000 |