Structure 121020038912089 · Harris County, TX
Carries SH 146 NB over Houston Ship Channel, 0.6 Mi N Of SH 225.
Set by its lowest-rated component: Superstructure and Substructure at 6 of 9.
How ratings work10,462 ft end to end: about 29 football fields, or 2.0 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 suspension bridge.
| State | Texas |
| County | Harris |
| Location | 0.6 Mi N Of SH 225 |
| Carries | SH 146 NB |
| Crosses | Houston Ship Channel |
| Coordinates | 29.69838, -95.02311 |
| Material | Steel |
| Design | Suspension |
| Total Length | 10461.9 ft (3188.8 m) |
| Max Span | 1250.0 ft (381 m) |
| Deck Width | 75.5 ft (23 m) |
| Deck Area | 73342.4 sq m |
| Main Spans | 1 |
| Year Built | 1995 |
| Avg Daily Traffic | 42,466 (2019) |
| Truck Traffic | 8% |
| Lanes On Bridge | 4 |
| Lanes Under Bridge | 4 |
| 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 | 121020038912089 |
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.