Structure 121020011006291 · Harris County, TX
Carries Bw 8 Eb/ih 45 NB over Bw 8 & IH 45, IH 45 & Bw 8 Interchange.
Set by its lowest-rated component: Superstructure and Substructure at 5 of 9.
How ratings work6,892 ft end to end, longest span 286 ft: about 19 football fields, or 1.3 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 | IH 45 & Bw 8 Interchange |
| Carries | Bw 8 Eb/ih 45 NB |
| Crosses | Bw 8 & IH 45 |
| Coordinates | 29.94041, -95.41649 |
| Material | Steel Continuous |
| Design | Box Beam - Multiple |
| Total Length | 6892.1 ft (2100.7 m) |
| Max Span | 286.1 ft (87.2 m) |
| Deck Width | 40.7 ft (12.4 m) |
| Deck Area | 26048.7 sq m |
| Main Spans | 3 |
| Year Built | 1997 |
| Avg Daily Traffic | 13,124 (2023) |
| Truck Traffic | 3% |
| Lanes On Bridge | 2 |
| Lanes Under Bridge | 39 |
| 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 | 121020011006291 |
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.