Avenue 18 1/2 over SR 99
Fair Condition52 years old1,310 vehicles/day
Location
| State | California |
| County | Madera |
| Location | 06-mad-099-r16.33 |
| Carries | Avenue 18 1/2 |
| Crosses | SR 99 |
| Coordinates | 37.01816, -120.12939 |
Condition Ratings
| Overall Condition | Fair |
| Deck | 5 (Fair) |
| Superstructure | 7 (Good) |
| Substructure | 7 (Good) |
| Scour Critical | Not applicable |
Physical Characteristics
| Material | Prestressed Concrete Continuous |
| Design | Box Beam - Multiple |
| Total Length | 341.9 ft (104.2 m) |
| Max Span | 173.9 ft (53 m) |
| Deck Width | 59.1 ft (18 m) |
| Deck Area | 1875.6 sq m |
| Main Spans | 2 |
| Year Built | 1974 |
Traffic
| Avg Daily Traffic | 1,310 (1998) |
| Truck Traffic | 10% |
| Lanes On Bridge | 3 |
| Lanes Under Bridge | 4 |
Inspection & Ownership
| Last Inspection | 623 |
| Inspection Frequency | Every 24 months |
| Owner | State Highway Agency |
| Historical Significance | Bridge is not eligible for the National Register |
| Structure Number | 41 0069 |