Structure D-31-PB-510 · Denver County, CO
Carries E 78th Avenue over Third Creek Trib, Just W Of Jackson Gap RD.
A culvert 24 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 | Denver |
| Location | Just W Of Jackson Gap RD |
| Carries | E 78th Avenue |
| Crosses | Third Creek Trib |
| Coordinates | 39.83775, -104.69381 |
| Material | Concrete |
| Design | Culvert |
| Total Length | 24.0 ft (7.3 m) |
| Max Span | 11.5 ft (3.5 m) |
| Deck Width | 120.7 ft (36.8 m) |
| Deck Area | 268.6 sq m |
| Main Spans | 2 |
| Year Built | 1992 |
| Avg Daily Traffic | 18,020 (2021) |
| Truck Traffic | 6% |
| Lanes On Bridge | 5 |
| Last Inspection | January 2025 |
| Inspection Frequency | Every 24 months |
| Owner | Other Local Agencies |
| Historical Significance | Bridge is not eligible for the National Register |
| Scour Critical | 8 — Stable, low risk |
| Structure Number | D-31-PB-510 |
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.