Structure 275690000000000 · Mayes County, OK
Carries S.h. 28 over Pensacola Dam, Pensacola Dam @grand Lake.
5,596 ft end to end, longest span 61 ft: about 16 football fields, or 1.1 miles. 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 or the layout of the shorter spans, so those are drawn as typical for a deck arch.
| State | Oklahoma |
| County | Mayes |
| Location | Pensacola Dam @grand Lake |
| Carries | S.h. 28 |
| Crosses | Pensacola Dam |
| Coordinates | 36.46806, -95.04174 |
| Material | Concrete |
| Design | Arch - Deck |
| Total Length | 5596.1 ft (1705.7 m) |
| Max Span | 61.4 ft (18.7 m) |
| Deck Width | 28.5 ft (8.7 m) |
| Deck Area | 14839.6 sq m |
| Main Spans | 51 |
| Year Built | 1940 |
| Avg Daily Traffic | 3,000 (2022) |
| Truck Traffic | 15% |
| Lanes On Bridge | 2 |
| Last Inspection | November 2023 |
| Inspection Frequency | Every 24 months |
| Owner | Other Local Agencies |
| Historical Significance | Bridge is on the National Register of Historic Places |
| Scour Critical | 8 — Stable, low risk |
| Structure Number | 275690000000000 |
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.