FM 646 over Dickinson Bayou
Good Condition13 years old14,010 vehicles/day
Location
| State | Texas |
| County | Galveston |
| Location | 0.35 Mi S Of FM 517 |
| Carries | FM 646 |
| Crosses | Dickinson Bayou |
| Coordinates | 29.43663, -95.09219 |
Condition Ratings
| Overall Condition | Good |
| Deck | 7 (Good) |
| Superstructure | 8 (Very Good) |
| Substructure | 7 (Good) |
| Channel/Waterway | 7 (Good) |
| Scour Critical | 8 — Stable, low risk |
Physical Characteristics
| Material | Prestressed Concrete |
| Design | Stringer/Multi-beam |
| Total Length | 220.1 ft (67.1 m) |
| Max Span | 89.9 ft (27.4 m) |
| Deck Width | 80.1 ft (24.4 m) |
| Deck Area | 1637.2 sq m |
| Main Spans | 3 |
| Year Built | 2013 |
Traffic
| Avg Daily Traffic | 14,010 (2020) |
| Truck Traffic | 4% |
| Lanes On Bridge | 5 |
Inspection & Ownership
| Last Inspection | 824 |
| Inspection Frequency | Every 24 months |
| Owner | State Highway Agency |
| Historical Significance | Bridge is not eligible for the National Register |
| Structure Number | 120850097801055 |