Structure 121020027107425 · Harris County, TX
Carries IH 45 NB over IH 10 Uprr Buf Byu Tc, From I-10 To Walker Con.
4,286 ft end to end, longest span 107 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 multi-beam bridge.
| State | Texas |
| County | Harris |
| Location | From I-10 To Walker Con |
| Carries | IH 45 NB |
| Crosses | IH 10 Uprr Buf Byu Tc |
| Coordinates | 29.77176, -95.36559 |
| Material | Steel Continuous |
| Design | Stringer/Multi-beam |
| Total Length | 4286.1 ft (1306.4 m) |
| Max Span | 107.0 ft (32.6 m) |
| Deck Width | 42.7 ft (13 m) |
| Deck Area | 16983.2 sq m |
| Main Spans | 48 |
| Year Built | 1962 (reconstructed 2000) |
| Avg Daily Traffic | 116,060 (2011) |
| Truck Traffic | 6% |
| Lanes On Bridge | 3 |
| Lanes Under Bridge | 29 |
| Last Inspection | December 2024 |
| Inspection Frequency | Every 24 months |
| Owner | State Highway Agency |
| Historical Significance | Bridge is possibly eligible (requires evaluation) |
| Scour Critical | 8 — Stable, low risk |
| Structure Number | 121020027107425 |
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.