FM 646 over Hl&p Discharge Canal
Fair Condition32 years old8,809 vehicles/day
Location
| State | Texas |
| County | Galveston |
| Location | 2.5 Mi E Of Sh146/fm646 |
| Carries | FM 646 |
| Crosses | Hl&p Discharge Canal |
| Coordinates | 29.50525, -94.95937 |
Condition Ratings
| Overall Condition | Fair |
| Deck | 6 (Satisfactory) |
| Superstructure | 8 (Very Good) |
| Substructure | 7 (Good) |
| Channel/Waterway | 5 (Fair) |
| Scour Critical | 4 — Foundations need monitoring |
Physical Characteristics
| Material | Prestressed Concrete |
| Design | Box Beam - Multiple |
| Total Length | 194.9 ft (59.4 m) |
| Max Span | 73.2 ft (22.3 m) |
| Deck Width | 53.8 ft (16.4 m) |
| Deck Area | 974.2 sq m |
| Main Spans | 3 |
| Year Built | 1994 |
Traffic
| Avg Daily Traffic | 8,809 (2020) |
| Truck Traffic | 6% |
| Lanes On Bridge | 2 |
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 | 120850097802011 |