SH 99 over Willow Flats
Good Condition11 years old4,000 vehicles/day
Location
| State | Texas |
| County | Harris |
| Location | 3.50 Mi W Of SH 249 |
| Carries | SH 99 |
| Crosses | Willow Flats |
| Coordinates | 30.05011, -95.67441 |
Condition Ratings
| Overall Condition | Good |
| Deck | 7 (Good) |
| Superstructure | 7 (Good) |
| Substructure | 7 (Good) |
| Channel/Waterway | 6 (Satisfactory) |
| Scour Critical | 8 — Stable, low risk |
Physical Characteristics
| Material | Prestressed Concrete |
| Design | Stringer/Multi-beam |
| Total Length | 2279.9 ft (694.9 m) |
| Max Span | 120.1 ft (36.6 m) |
| Deck Width | 80.1 ft (24.4 m) |
| Deck Area | 16955.6 sq m |
| Main Spans | 19 |
| Year Built | 2015 |
Traffic
| Avg Daily Traffic | 4,000 (2015) |
| Truck Traffic | 5% |
| Lanes On Bridge | 4 |
Inspection & Ownership
| Last Inspection | October 2024 |
| Inspection Frequency | Every 24 months |
| Owner | State Highway Agency |
| Historical Significance | Bridge is not eligible for the National Register |
| Structure Number | 121020351006184 |