Interlaaken DR SW over Steilacoom Lake
Poor Condition99 years old4,905 vehicles/day
Location
| State | Washington |
| County | Pierce |
| Location | 1.0 E Jct Grvly Lk |
| Carries | Interlaaken DR SW |
| Crosses | Steilacoom Lake |
| Coordinates | 47.16627, -122.54193 |
Condition Ratings
| Overall Condition | Poor |
| Deck | 8 (Very Good) |
| Superstructure | 6 (Satisfactory) |
| Substructure | 4 (Poor) |
| Channel/Waterway | 8 (Very Good) |
| Scour Critical | 5 — Stable for scour |
Physical Characteristics
| Material | Wood or Timber |
| Design | Stringer/Multi-beam |
| Total Length | 682.1 ft (207.9 m) |
| Max Span | 28.9 ft (8.8 m) |
| Deck Width | 24.0 ft (7.3 m) |
| Deck Area | 1517.7 sq m |
| Main Spans | 43 |
| Year Built | 1927 (reconstructed 1951) |
Traffic
| Avg Daily Traffic | 4,905 (2023) |
| Truck Traffic | 3% |
| Lanes On Bridge | 2 |
Inspection & Ownership
| Last Inspection | 923 |
| Inspection Frequency | Every 24 months |
| Owner | City/Municipal Highway Agency |
| Historical Significance | Bridge is not eligible for the National Register |
| Structure Number | 079998000000000 |