Harriet DR over Grayson Creek
Good Condition69 years old800 vehicles/day
Location
| State | California |
| County | Contra Costa |
| Location | At Ruth DR |
| Carries | Harriet DR |
| Crosses | Grayson Creek |
| Coordinates | 37.95993, -122.06628 |
Condition Ratings
| Overall Condition | Good |
| Deck | 7 (Good) |
| Superstructure | 7 (Good) |
| Substructure | 7 (Good) |
| Channel/Waterway | 8 (Very Good) |
| Scour Critical | 8 — Stable, low risk |
Physical Characteristics
| Material | Concrete |
| Design | Slab |
| Total Length | 39.0 ft (11.9 m) |
| Max Span | 39.0 ft (11.9 m) |
| Deck Width | 44.0 ft (13.4 m) |
| Deck Area | 159.5 sq m |
| Main Spans | 1 |
| Year Built | 1957 |
Traffic
| Avg Daily Traffic | 800 (2020) |
| Truck Traffic | 1% |
| Lanes On Bridge | 2 |
Inspection & Ownership
| Last Inspection | 225 |
| Inspection Frequency | Every 24 months |
| Owner | City/Municipal Highway Agency |
| Historical Significance | Bridge is not eligible for the National Register |
| Structure Number | 28C0412 |