Structure C-16-K · Larimer County, CO
Carries US 287 Ml over Louden Canal, 3.2 Mi N Of Jct US 34.
A culvert 22 ft across. 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 | Larimer |
| Location | 3.2 Mi N Of Jct US 34 |
| Carries | US 287 Ml |
| Crosses | Louden Canal |
| Coordinates | 40.45345, -105.07720 |
| Material | Concrete |
| Design | Culvert |
| Total Length | 22.0 ft (6.7 m) |
| Max Span | 22.0 ft (6.7 m) |
| Deck Width | 119.1 ft (36.3 m) |
| Deck Area | 243.2 sq m |
| Main Spans | 1 |
| Year Built | 1924 (reconstructed 1978) |
| Avg Daily Traffic | 34,000 (2020) |
| Truck Traffic | 3% |
| Lanes On Bridge | 4 |
| Last Inspection | November 2023 |
| Inspection Frequency | Every 24 months |
| Owner | State Highway Agency |
| Historical Significance | Bridge is not eligible for the National Register |
| Scour Critical | 8 — Stable, low risk |
| Structure Number | C-16-K |
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.