FM 1660 over San Gabriel River
Fair Condition39 years old2,616 vehicles/day
Location
| State | Texas |
| County | Williamson |
| Location | 0.30 Mi S Of SH 29 |
| Carries | FM 1660 |
| Crosses | San Gabriel River |
| Coordinates | 30.63564, -97.54243 |
Condition Ratings
| Overall Condition | Fair |
| Deck | 7 (Good) |
| Superstructure | 6 (Satisfactory) |
| Substructure | 6 (Satisfactory) |
| Channel/Waterway | 6 (Satisfactory) |
| Scour Critical | 8 — Stable, low risk |
Physical Characteristics
| Material | Prestressed Concrete |
| Design | Stringer/Multi-beam |
| Total Length | 504.9 ft (153.9 m) |
| Max Span | 75.1 ft (22.9 m) |
| Deck Width | 29.9 ft (9.1 m) |
| Deck Area | 1400.5 sq m |
| Main Spans | 7 |
| Year Built | 1987 |
Traffic
| Avg Daily Traffic | 2,616 (2023) |
| Truck Traffic | 15% |
| Lanes On Bridge | 2 |
Inspection & Ownership
| Last Inspection | 323 |
| Inspection Frequency | Every 24 months |
| Owner | State Highway Agency |
| Historical Significance | Bridge is not eligible for the National Register |
| Structure Number | 142460156601006 |