Gregory LN over Grayson Creek
Good Condition67 years old10,000 vehicles/day
Location
| State | California |
| County | Contra Costa |
| Location | 0.4 Mi W Contra Costa Bl |
| Carries | Gregory LN |
| Crosses | Grayson Creek |
| Coordinates | 37.94787, -122.06772 |
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 | 20.3 ft (6.2 m) |
| Max Span | 20.3 ft (6.2 m) |
| Deck Width | 72.8 ft (22.2 m) |
| Deck Area | 137.6 sq m |
| Main Spans | 1 |
| Year Built | 1959 |
Traffic
| Avg Daily Traffic | 10,000 (2020) |
| Truck Traffic | 5% |
| Lanes On Bridge | 4 |
Inspection & Ownership
| Last Inspection | 223 |
| Inspection Frequency | Every 48 months |
| Owner | City/Municipal Highway Agency |
| Historical Significance | Bridge is not eligible for the National Register |
| Structure Number | 28C0348 |