Structure P-18-CB · Las Animas County, CO
Carries SH 12 Ml over Colorado Canyon, 2.5 Mi W Of I-25 In Trini.
A culvert 23 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 | Colorado |
| County | Las Animas |
| Location | 2.5 Mi W Of I-25 In Trini |
| Carries | SH 12 Ml |
| Crosses | Colorado Canyon |
| Coordinates | 37.15358, -104.54662 |
| Material | Concrete |
| Design | Culvert |
| Total Length | 23.3 ft (7.1 m) |
| Max Span | 11.2 ft (3.4 m) |
| Deck Width | 99.7 ft (30.4 m) |
| Deck Area | 215.8 sq m |
| Main Spans | 2 |
| Year Built | 1974 |
| Avg Daily Traffic | 1,900 (2020) |
| Truck Traffic | 7% |
| Lanes On Bridge | 2 |
| Last Inspection | September 2024 |
| Inspection Frequency | Every 48 months |
| Owner | State Highway Agency |
| Historical Significance | Bridge is not eligible for the National Register |
| Scour Critical | 8 — Stable, low risk |
| Structure Number | P-18-CB |
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.