Interstate 680 over Las Trampas Creek
Fair Condition66 years old195,300 vehicles/day
Location
| State | California |
| County | Contra Costa |
| Location | 04-cc-680-13.72-wlc |
| Carries | Interstate 680 |
| Crosses | Las Trampas Creek |
| Coordinates | 37.89234, -122.06313 |
Condition Ratings
| Overall Condition | Fair |
| Deck | 6 (Satisfactory) |
| Superstructure | 7 (Good) |
| Substructure | 8 (Very Good) |
| Channel/Waterway | 7 (Good) |
| Scour Critical | 8 — Stable, low risk |
Physical Characteristics
| Material | Concrete Continuous |
| Design | Box Beam - Multiple |
| Total Length | 182.4 ft (55.6 m) |
| Max Span | 66.3 ft (20.2 m) |
| Deck Width | 200.8 ft (61.2 m) |
| Deck Area | 3402.7 sq m |
| Main Spans | 3 |
| Year Built | 1960 (reconstructed 1994) |
Traffic
| Avg Daily Traffic | 195,300 (2017) |
| Truck Traffic | 6% |
| Lanes On Bridge | 11 |
Inspection & Ownership
| Last Inspection | 724 |
| Inspection Frequency | Every 24 months |
| Owner | State Highway Agency |
| Historical Significance | Bridge is not eligible for the National Register |
| Structure Number | 28 0162 |