Structure 121020050801294 · Harris County, TX
Carries Conn D IH 10 To 59 over Buff Bayou Rr Jensn H10, Us59/ih10 Interchange.
Set by its lowest-rated component: Superstructure and Substructure at 6 of 9.
How ratings work4,493 ft end to end, longest span 310 ft: about 12 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 box-beam bridge.
| State | Texas |
| County | Harris |
| Location | Us59/ih10 Interchange |
| Carries | Conn D IH 10 To 59 |
| Crosses | Buff Bayou Rr Jensn H10 |
| Coordinates | 29.76349, -95.35004 |
| Material | Steel Continuous |
| Design | Box Beam - Multiple |
| Total Length | 4493.1 ft (1369.5 m) |
| Max Span | 310.0 ft (94.5 m) |
| Deck Width | 38.7 ft (11.8 m) |
| Deck Area | 16160.1 sq m |
| Main Spans | 4 |
| Year Built | 2002 |
| Avg Daily Traffic | 160,180 (2014) |
| That is about 80,090 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 | 2% |
| Lanes On Bridge | 2 |
| Lanes Under Bridge | 16 |
| Last Inspection | December 2024 |
| Inspection Frequency | Every 24 months |
| Owner | State Highway Agency |
| Historical Significance | Bridge is not eligible for the National Register |
| Scour Critical | 8 — Stable, low risk |
| Structure Number | 121020050801294 |
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.