SR 506 over Stillwater CR
Good Condition63 years old994 vehicles/day
Location
| State | Washington |
| County | Lewis |
| Location | 3.7 E Cowlitz Co |
| Carries | SR 506 |
| Crosses | Stillwater CR |
| Coordinates | 46.40956, -122.98714 |
Condition Ratings
| Overall Condition | Good |
| Deck | 8 (Very Good) |
| Superstructure | 7 (Good) |
| Substructure | 7 (Good) |
| Channel/Waterway | 7 (Good) |
| Scour Critical | 3 — Scour critical |
Physical Characteristics
| Material | Prestressed Concrete |
| Design | Stringer/Multi-beam |
| Total Length | 200.1 ft (61 m) |
| Max Span | 99.1 ft (30.2 m) |
| Deck Width | 31.5 ft (9.6 m) |
| Deck Area | 585.6 sq m |
| Main Spans | 3 |
| Year Built | 1963 |
Traffic
| Avg Daily Traffic | 994 (2023) |
| Truck Traffic | 12% |
| Lanes On Bridge | 2 |
Inspection & Ownership
| Last Inspection | 924 |
| Inspection Frequency | Every 24 months |
| Owner | State Highway Agency |
| Historical Significance | Bridge is not eligible for the National Register |
| Structure Number | 0007158A0000000 |