RD 315 over Susan River
Fair Condition39 years old100 vehicles/day
Location
| State | California |
| County | Lassen |
| Location | 0.6 Mi S Of CR 215 |
| Carries | RD 315 |
| Crosses | Susan River |
| Coordinates | 40.37874, -120.39928 |
Condition Ratings
| Overall Condition | Fair |
| Deck | 6 (Satisfactory) |
| Superstructure | 6 (Satisfactory) |
| Substructure | 7 (Good) |
| Channel/Waterway | 7 (Good) |
| Scour Critical | 5 — Stable for scour |
Physical Characteristics
| Material | Concrete Continuous |
| Design | Slab |
| Total Length | 121.4 ft (37 m) |
| Max Span | 29.9 ft (9.1 m) |
| Deck Width | 32.8 ft (10 m) |
| Deck Area | 370 sq m |
| Main Spans | 4 |
| Year Built | 1987 |
Traffic
| Avg Daily Traffic | 100 (1986) |
| Truck Traffic | 10% |
| Lanes On Bridge | 2 |
Inspection & Ownership
| Last Inspection | 824 |
| Inspection Frequency | Every 24 months |
| Owner | County Highway Agency |
| Historical Significance | Bridge is not eligible for the National Register |
| Structure Number | 07C0006 |