Royal Ridge RD over Drainage Ditch
Good Condition54 years old1,500 vehicles/day
Location
| State | Arizona |
| County | Maricopa |
| Location | At 99th Avenue Median |
| Carries | Royal Ridge RD |
| Crosses | Drainage Ditch |
| Coordinates | 33.60741, -112.26833 |
Condition Ratings
| Overall Condition | Good |
| Channel/Waterway | 7 (Good) |
| Culvert | 7 (Good) |
| Scour Critical | 8 — Stable, low risk |
Physical Characteristics
| Material | Concrete Continuous |
| Design | Culvert |
| Total Length | 21.0 ft (6.4 m) |
| Max Span | 9.8 ft (3 m) |
| Deck Width | 44.0 ft (13.4 m) |
| Deck Area | 85.8 sq m |
| Main Spans | 2 |
| Year Built | 1972 |
Traffic
| Avg Daily Traffic | 1,500 (2022) |
| Truck Traffic | 5% |
| Lanes On Bridge | 2 |
Inspection & Ownership
| Last Inspection | December 2022 |
| Inspection Frequency | Every 36 months |
| Owner | County Highway Agency |
| Historical Significance | Bridge is not eligible for the National Register |
| Structure Number | 09670 |