Old HWY 99 over Prairie Creek
Good Condition16 years old11,240 vehicles/day
Location
| State | Washington |
| County | Thurston |
| Location | 1. S Jct I-5 |
| Carries | Old HWY 99 |
| Crosses | Prairie Creek |
| Coordinates | 46.79662, -123.01201 |
Condition Ratings
| Overall Condition | Good |
| Deck | 8 (Very Good) |
| Superstructure | 8 (Very Good) |
| Substructure | 8 (Very Good) |
| Channel/Waterway | 8 (Very Good) |
| Scour Critical | 8 — Stable, low risk |
Physical Characteristics
| Material | Prestressed Concrete |
| Design | Slab |
| Total Length | 63.0 ft (19.2 m) |
| Max Span | 60.0 ft (18.3 m) |
| Deck Width | 79.1 ft (24.1 m) |
| Deck Area | 462.7 sq m |
| Main Spans | 1 |
| Year Built | 2010 |
Traffic
| Avg Daily Traffic | 11,240 (2021) |
| Truck Traffic | 20% |
| Lanes On Bridge | 3 |
Inspection & Ownership
| Last Inspection | 623 |
| Inspection Frequency | Every 24 months |
| Owner | County Highway Agency |
| Historical Significance | Bridge is not eligible for the National Register |
| Structure Number | 088277000000000 |