Structure 121020005009163 · Harris County, TX
Carries Bw 8 NB over US 290, US 290 At Beltway 8.
Set by its lowest-rated component: Deck and Superstructure and Substructure at 7 of 9.
How ratings work5,414 ft end to end, longest span 120 ft: about 15 football fields, or 1.0 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 multi-beam bridge.
| State | Texas |
| County | Harris |
| Location | US 290 At Beltway 8 |
| Carries | Bw 8 NB |
| Crosses | US 290 |
| Coordinates | 29.87387, -95.55477 |
| Material | Prestressed Concrete |
| Design | Stringer/Multi-beam |
| Total Length | 5414.0 ft (1650.2 m) |
| Max Span | 120.1 ft (36.6 m) |
| Deck Width | 59.1 ft (18 m) |
| Deck Area | 29703.6 sq m |
| Main Spans | 40 |
| Year Built | 1990 |
| Avg Daily Traffic | 216,828 (2015) |
| That is about 72,276 vehicles per lane per day — beyond what any U.S. road carries (the busiest freeways run about 25,000–30,000). It is almost certainly a data-entry error in the National Bridge Inventory, so we leave this bridge out of traffic rankings. | |
| Truck Traffic | 4% |
| Lanes On Bridge | 3 |
| Lanes Under Bridge | 29 |
| Last Inspection | October 2022 |
| Inspection Frequency | Every 48 months |
| Owner | Local Toll Authority |
| Historical Significance | Bridge is not eligible for the National Register |
| Scour Critical | Not applicable |
| Structure Number | 121020005009163 |
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.