Structure 121020AA6011001 · Harris County, TX
Carries Airline Dr;west RD over Hcfcd Ditch, 1.15 Mi S Of FM 525.
A culvert 24 ft across with 2 openings. 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, so those are drawn as typical for a culvert.
| State | Texas |
| County | Harris |
| Location | 1.15 Mi S Of FM 525 |
| Carries | Airline Dr;west RD |
| Crosses | Hcfcd Ditch |
| Coordinates | 29.91532, -95.40579 |
| Material | Concrete |
| Design | Culvert |
| Total Length | 24.0 ft (7.3 m) |
| Max Span | 9.8 ft (3 m) |
| Deck Width | 450.1 ft (137.2 m) |
| Deck Area | 1001.6 sq m |
| Main Spans | 2 |
| Year Built | 1950 |
| Avg Daily Traffic | 16,660 (2015) |
| Truck Traffic | 5% |
| Lanes On Bridge | 5 |
| Last Inspection | November 2023 |
| Inspection Frequency | Every 24 months |
| Owner | County Highway Agency |
| Historical Significance | Bridge is possibly eligible (requires evaluation) |
| Scour Critical | 6 — Scour calculated, stable |
| Structure Number | 121020AA6011001 |
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.