Structure 121020050003022 · Harris County, TX
Carries IH 45 over Drainage Ditch, 1.70 Mi SE Of SH 3.
A culvert 25 ft across with 3 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 | 1.70 Mi SE Of SH 3 |
| Carries | IH 45 |
| Crosses | Drainage Ditch |
| Coordinates | 29.64779, -95.24832 |
| Material | Concrete |
| Design | Culvert |
| Total Length | 24.9 ft (7.6 m) |
| Max Span | 6.9 ft (2.1 m) |
| Deck Area | 539.6 sq m |
| Main Spans | 3 |
| Year Built | 1948 (reconstructed 1990) |
| Avg Daily Traffic | 179,131 (2023) |
| Truck Traffic | 6% |
| Lanes On Bridge | 15 |
| Last Inspection | August 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 | 121020050003022 |
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.