Structure P-06-AF · La Plata County, CO
Carries SH 151 Ml over Devil Creek, 5.3 Mi NW Of Allison.
A culvert 23 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 | La Plata |
| Location | 5.3 Mi NW Of Allison |
| Carries | SH 151 Ml |
| Crosses | Devil Creek |
| Coordinates | 37.07792, -107.53250 |
| Material | Steel |
| Design | Culvert |
| Total Length | 22.6 ft (6.9 m) |
| Max Span | 22.6 ft (6.9 m) |
| Deck Width | 134.5 ft (41 m) |
| Deck Area | 282.9 sq m |
| Main Spans | 1 |
| Year Built | 1980 |
| Avg Daily Traffic | 1,500 (2007) |
| Truck Traffic | 11% |
| Lanes On Bridge | 2 |
| Last Inspection | May 2023 |
| Inspection Frequency | Every 24 months |
| Owner | State Highway Agency |
| Historical Significance | Bridge is not eligible for the National Register |
| Scour Critical | 5 — Stable for scour |
| Structure Number | P-06-AF |
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.