IH 45 SB over Magnolia Bayou
Good Condition4 years old115,900 vehicles/day
Location
| State | Texas |
| County | Galveston |
| Location | 0.30 Mi. South Of FM 646 |
| Carries | IH 45 SB |
| Crosses | Magnolia Bayou |
| Coordinates | 29.46246, -95.08796 |
Condition Ratings
| Overall Condition | Good |
| Deck | 7 (Good) |
| Superstructure | 8 (Very Good) |
| Substructure | 8 (Very Good) |
| Channel/Waterway | 8 (Very Good) |
| Scour Critical | 8 — Stable, low risk |
Physical Characteristics
| Material | Prestressed Concrete |
| Design | Box Beam - Multiple |
| Total Length | 111.9 ft (34.1 m) |
| Max Span | 49.9 ft (15.2 m) |
| Deck Width | 86.0 ft (26.2 m) |
| Deck Area | 893.4 sq m |
| Main Spans | 3 |
| Year Built | 2022 |
Traffic
| Avg Daily Traffic | 115,900 (2016) |
| Truck Traffic | 6% |
| Lanes On Bridge | 5 |
Inspection & Ownership
| Last Inspection | December 2024 |
| Inspection Frequency | Every 24 months |
| Owner | State Highway Agency |
| Historical Significance | Bridge is not eligible for the National Register |
| Structure Number | 120850050004456 |