Structure 121020027114696 · Harris County, TX
Carries Ih610 E&w/us290(c) over Ih610;us290;mangum&dacom, Ih610 & US 290.
Set by its lowest-rated component: Deck and Superstructure and Substructure at 7 of 9.
How ratings work11,691 ft end to end, longest span 240 ft: about 32 football fields, or 2.2 miles. 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 box-beam bridge.
| State | Texas |
| County | Harris |
| Location | Ih610 & US 290 |
| Carries | Ih610 E&w/us290(c) |
| Crosses | Ih610;us290;mangum&dacom |
| Coordinates | 29.78638, -95.45146 |
| Material | Steel Continuous |
| Design | Box Beam - Multiple |
| Total Length | 11690.9 ft (3563.4 m) |
| Max Span | 240.2 ft (73.2 m) |
| Deck Width | 53.5 ft (16.3 m) |
| Deck Area | 58083.4 sq m |
| Main Spans | 11 |
| Year Built | 2020 |
| Avg Daily Traffic | 31,695 (2011) |
| Truck Traffic | 3% |
| Lanes On Bridge | 2 |
| Lanes Under Bridge | 36 |
| Last Inspection | November 2024 |
| Inspection Frequency | Every 24 months |
| Owner | State Highway Agency |
| Historical Significance | Historical significance is not determined |
| Scour Critical | Not applicable |
| Structure Number | 121020027114696 |
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.