FM 493 over Donna Drain
Good Condition38 years old9,359 vehicles/day
Location
| State | Texas |
| County | Hidalgo |
| Location | 0.30 Mi S Of SH 107 |
| Carries | FM 493 |
| Crosses | Donna Drain |
| Coordinates | 26.28896, -98.03771 |
Condition Ratings
| Overall Condition | Good |
| Deck | 8 (Very Good) |
| Superstructure | 8 (Very Good) |
| Substructure | 7 (Good) |
| Channel/Waterway | 6 (Satisfactory) |
| Scour Critical | 6 — Scour calculated, stable |
Physical Characteristics
| Material | Prestressed Concrete |
| Design | Box Beam - Multiple |
| Total Length | 100.1 ft (30.5 m) |
| Max Span | 49.9 ft (15.2 m) |
| Deck Width | 42.3 ft (12.9 m) |
| Deck Area | 393.4 sq m |
| Main Spans | 2 |
| Year Built | 1988 |
Traffic
| Avg Daily Traffic | 9,359 (2024) |
| Truck Traffic | 5% |
| Lanes On Bridge | 2 |
Inspection & Ownership
| Last Inspection | 523 |
| Inspection Frequency | Every 24 months |
| Owner | State Highway Agency |
| Historical Significance | Bridge is not eligible for the National Register |
| Structure Number | 211090086301010 |