Structure 121020027106685 · Harris County, TX
Carries Ih10 WB To Sh99 NB over Misc St; Ramps And Frs, 1.4 Mi W Of Mason Road.
Set by its lowest-rated component: Deck and Substructure at 7 of 9.
How ratings work4,890 ft end to end, longest span 137 ft: about 14 football fields. Lengths are drawn to scale; at this length a semi-truck would be a speck. Each part is colored by its latest inspection rating. The inventory records lengths but not heights or the layout of the shorter spans, so those are drawn as typical for a multi-beam bridge.
| State | Texas |
| County | Harris |
| Location | 1.4 Mi W Of Mason Road |
| Carries | Ih10 WB To Sh99 NB |
| Crosses | Misc St; Ramps And Frs |
| Coordinates | 29.78579, -95.77502 |
| Material | Prestressed Concrete |
| Design | Stringer/Multi-beam |
| Total Length | 4890.1 ft (1490.5 m) |
| Max Span | 137.1 ft (41.8 m) |
| Deck Width | 38.4 ft (11.7 m) |
| Deck Area | 17438.8 sq m |
| Main Spans | 24 |
| Year Built | 2014 |
| Avg Daily Traffic | 10,000 (2012) |
| Truck Traffic | 10% |
| Lanes On Bridge | 1 |
| Lanes Under Bridge | 16 |
| Last Inspection | September 2024 |
| Inspection Frequency | Every 24 months |
| Owner | State Highway Agency |
| Historical Significance | Bridge is not eligible for the National Register |
| Scour Critical | Not applicable |
| Structure Number | 121020027106685 |
Inspectors rate each major part of a bridge (the deck you drive on, the superstructure of beams that holds it up, and the substructure of piers and abutments beneath) on a 0–9 scale. A bridge's overall condition is its lowest of those ratings, so one deteriorated component makes the whole bridge "poor."
A poor rating is not a closure. It means the bridge is flagged for priority repair or replacement; bridges judged unsafe are closed or posted with weight limits. The waterway (channel) rating is reported, but it does not count toward the overall classification.