Structure 121700052310178 · Montgomery County, TX
Carries FM 1488 over Outfall 1, 5.8 Mi W Of FM 2978.
A culvert 22 ft across with 4 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 | Montgomery |
| Location | 5.8 Mi W Of FM 2978 |
| Carries | FM 1488 |
| Crosses | Outfall 1 |
| Coordinates | 30.22246, -95.66414 |
| Material | Concrete |
| Design | Culvert |
| Total Length | 22.0 ft (6.7 m) |
| Max Span | 3.9 ft (1.2 m) |
| Deck Area | 171.5 sq m |
| Main Spans | 4 |
| Year Built | 2010 |
| Avg Daily Traffic | 25,956 (2023) |
| Truck Traffic | 4% |
| Lanes On Bridge | 2 |
| 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 | 6 — Scour calculated, stable |
| Structure Number | 121700052310178 |
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.