FM 521 over San Bernard River
Fair Condition66 years old9,726 vehicles/day
Location
| State | Texas |
| County | Brazoria |
| Location | 2.50 Mi S Of SH 36 |
| Carries | FM 521 |
| Crosses | San Bernard River |
| Coordinates | 29.01105, -95.58823 |
Condition Ratings
| Overall Condition | Fair |
| Deck | 6 (Satisfactory) |
| Superstructure | 6 (Satisfactory) |
| Substructure | 6 (Satisfactory) |
| Channel/Waterway | 7 (Good) |
| Scour Critical | 8 — Stable, low risk |
Physical Characteristics
| Material | Steel Continuous |
| Design | Stringer/Multi-beam |
| Total Length | 880.9 ft (268.5 m) |
| Max Span | 140.1 ft (42.7 m) |
| Deck Width | 45.9 ft (14 m) |
| Deck Area | 3,759 sq m |
| Main Spans | 3 |
| Year Built | 1960 (reconstructed 2005) |
Traffic
| Avg Daily Traffic | 9,726 (2016) |
| Truck Traffic | 4% |
| Lanes On Bridge | 2 |
Inspection & Ownership
| Last Inspection | December 2024 |
| Inspection Frequency | Every 24 months |
| Owner | State Highway Agency |
| Historical Significance | Bridge is possibly eligible (requires evaluation) |
| Structure Number | 120200100401006 |