Santiago Cnyn Road over Limestone Canyon
Good Condition95 years old8,000 vehicles/day
Location
| State | California |
| County | Orange |
| Location | 4.4 Mi Se/o Jamboree Rd. |
| Carries | Santiago Cnyn Road |
| Crosses | Limestone Canyon |
| Coordinates | 33.76002, -117.70346 |
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 | 25.9 ft (7.9 m) |
| Max Span | 12.1 ft (3.7 m) |
| Deck Width | 42.0 ft (12.8 m) |
| Deck Area | 101.1 sq m |
| Main Spans | 2 |
| Year Built | 1931 (reconstructed 1955) |
Traffic
| Avg Daily Traffic | 8,000 (2021) |
| Truck Traffic | 3% |
| Lanes On Bridge | 2 |
Inspection & Ownership
| Last Inspection | 423 |
| Inspection Frequency | Every 24 months |
| Owner | County Highway Agency |
| Historical Significance | Bridge is not eligible for the National Register |
| Structure Number | 55C0065 |