Structure 49C0278 · San Luis Obispo County, CA
Carries Norte RD over Bra Santa Margarita Crk, West Of Oak RD.
Set by its lowest-rated component: Deck and Superstructure and Substructure at 6 of 9.
How ratings work23 ft end to end. Lengths are drawn to scale; at this length a semi-truck would be a speck. Each part is colored by its latest inspection rating. The inventory records lengths but not heights or the layout of the shorter spans, so those are drawn as typical for a multi-beam bridge.
| State | California |
| County | San Luis Obispo |
| Location | West Of Oak RD |
| Carries | Norte RD |
| Crosses | Bra Santa Margarita Crk |
| Coordinates | 35.41876, -120.60824 |
| Material | Wood or Timber |
| Design | Stringer/Multi-beam |
| Total Length | 23.0 ft (7 m) |
| Max Span | 20.0 ft (6.1 m) |
| Deck Width | 16.4 ft (5 m) |
| Deck Area | 35 sq m |
| Main Spans | 1 |
| Year Built | 1956 (reconstructed 2007) |
| Avg Daily Traffic | 50 (2015) |
| Lanes On Bridge | 1 |
| Last Inspection | September 2024 |
| Inspection Frequency | Every 24 months |
| Owner | County Highway Agency |
| Historical Significance | Bridge is not eligible for the National Register |
| Scour Critical | 8 — Stable, low risk |
| Structure Number | 49C0278 |
Inspectors rate each major part of a bridge (the deck you drive on, the superstructure of beams that holds it up, and the substructure of piers and abutments beneath) on a 0–9 scale. A bridge's overall condition is its lowest of those ratings, so one deteriorated component makes the whole bridge "poor."
A poor rating is not a closure. It means the bridge is flagged for priority repair or replacement; bridges judged unsafe are closed or posted with weight limits. The waterway (channel) rating is reported, but it does not count toward the overall classification.