Structure 36C0137 · Santa Cruz County, CA
Carries Eureka Canyon RD over Shingle Mill Gulch, 2.0 Mi N Rider RD.
22 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 | Santa Cruz |
| Location | 2.0 Mi N Rider RD |
| Carries | Eureka Canyon RD |
| Crosses | Shingle Mill Gulch |
| Coordinates | 37.04427, -121.81547 |
| Material | Steel |
| Design | Stringer/Multi-beam |
| Total Length | 22.0 ft (6.7 m) |
| Max Span | 21.0 ft (6.4 m) |
| Deck Width | 22.3 ft (6.8 m) |
| Deck Area | 45.6 sq m |
| Main Spans | 1 |
| Year Built | 1950 |
| Avg Daily Traffic | 500 (2016) |
| Truck Traffic | 10% |
| Lanes On Bridge | 2 |
| Last Inspection | May 2024 |
| Inspection Frequency | Every 24 months |
| Owner | County Highway Agency |
| Historical Significance | Bridge is not eligible for the National Register |
| Scour Critical | 3 — Scour critical |
| Structure Number | 36C0137 |
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.