Structure 180430174601001 · Collin County, TX
Carries FM 1827 over Big Branch, 3.10 Mi NE Of US 380.
A culvert 22 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 | Collin |
| Location | 3.10 Mi NE Of US 380 |
| Carries | FM 1827 |
| Crosses | Big Branch |
| Coordinates | 33.22836, -96.54527 |
| Material | Concrete |
| Design | Culvert |
| Total Length | 22.0 ft (6.7 m) |
| Max Span | 6.9 ft (2.1 m) |
| Deck Width | 41.7 ft (12.7 m) |
| Deck Area | 85.1 sq m |
| Main Spans | 2 |
| Year Built | 1953 (reconstructed 2019) |
| Avg Daily Traffic | 4,397 (2023) |
| Truck Traffic | 6% |
| Lanes On Bridge | 2 |
| Last Inspection | September 2023 |
| 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 | 180430174601001 |
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.