I-5 over Capitol Lake
Good Condition70 years old49,410 vehicles/day
Location
| State | Washington |
| County | Thurston |
| Location | 0.5 N Jct US 101 |
| Carries | I-5 |
| Crosses | Capitol Lake |
| Coordinates | 47.02358, -122.90365 |
Condition Ratings
| Overall Condition | Good |
| Deck | 7 (Good) |
| Superstructure | 7 (Good) |
| Substructure | 7 (Good) |
| Channel/Waterway | 5 (Fair) |
| Scour Critical | 5 — Stable for scour |
Physical Characteristics
| Material | Concrete Continuous |
| Design | Box Beam - Multiple |
| Total Length | 392.1 ft (119.5 m) |
| Max Span | 109.9 ft (33.5 m) |
| Deck Width | 210.0 ft (64 m) |
| Deck Area | 7,648 sq m |
| Main Spans | 4 |
| Year Built | 1956 (reconstructed 1986) |
Traffic
| Avg Daily Traffic | 49,410 (2023) |
| Truck Traffic | 13% |
| Lanes On Bridge | 11 |
Inspection & Ownership
| Last Inspection | November 2023 |
| Inspection Frequency | Every 24 months |
| Owner | State Highway Agency |
| Historical Significance | Bridge is not eligible for the National Register |
| Structure Number | 0005090A0000000 |