FM 521 over Mustang Bayou
Good Condition77 years old17,417 vehicles/day
Location
| State | Texas |
| County | Fort Bend |
| Location | 3.85 Mi S Of FM 2234 |
| Carries | FM 521 |
| Crosses | Mustang Bayou |
| Coordinates | 29.52996, -95.45221 |
Condition Ratings
| Overall Condition | Good |
| Channel/Waterway | 8 (Very Good) |
| Culvert | 7 (Good) |
| Scour Critical | 6 — Scour calculated, stable |
Physical Characteristics
| Material | Concrete |
| Design | Culvert |
| Total Length | 38.1 ft (11.6 m) |
| Max Span | 6.9 ft (2.1 m) |
| Deck Width | 40.7 ft (12.4 m) |
| Deck Area | 143.8 sq m |
| Main Spans | 5 |
| Year Built | 1949 |
Traffic
| Avg Daily Traffic | 17,417 (2023) |
| Truck Traffic | 8% |
| Lanes On Bridge | 2 |
Inspection & Ownership
| Last Inspection | 924 |
| Inspection Frequency | Every 24 months |
| Owner | State Highway Agency |
| Historical Significance | Bridge is possibly eligible (requires evaluation) |
| Structure Number | 120800011103026 |