US 12 Moon RD over Slough
Good Condition27 years old10,063 vehicles/day
Location
| State | Washington |
| County | Thurston |
| Location | 1.0 E Grays Hbr Co |
| Carries | US 12 Moon RD |
| Crosses | Slough |
| Coordinates | 46.82580, -123.13921 |
Condition Ratings
| Overall Condition | Good |
| Channel/Waterway | 8 (Very Good) |
| Culvert | 7 (Good) |
| Scour Critical | 8 — Stable, low risk |
Physical Characteristics
| Material | Concrete |
| Design | Culvert |
| Total Length | 59.1 ft (18 m) |
| Max Span | 9.8 ft (3 m) |
| Deck Width | 36.1 ft (11 m) |
| Deck Area | 198 sq m |
| Main Spans | 4 |
| Year Built | 1999 |
Traffic
| Avg Daily Traffic | 10,063 (2023) |
| Truck Traffic | 14% |
| Lanes On Bridge | 3 |
Inspection & Ownership
| Last Inspection | 422 |
| Inspection Frequency | Every 48 months |
| Owner | State Highway Agency |
| Historical Significance | Historical significance is not determined |
| Structure Number | 0015666A0000000 |