Structure 15200083 · Codington County, SD
Carries 456 Avenue over Gravel Ck, 5.3s 8w South Shore.
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 | South Dakota |
| County | Codington |
| Location | 5.3s 8w South Shore |
| Carries | 456 Avenue |
| Crosses | Gravel Ck |
| Coordinates | 45.03078, -97.08584 |
| Material | Concrete Continuous |
| Design | Culvert |
| Total Length | 22.6 ft (6.9 m) |
| Max Span | 11.2 ft (3.4 m) |
| Deck Area | 67.6 sq m |
| Main Spans | 2 |
| Year Built | 1997 |
| Avg Daily Traffic | 73 (2022) |
| Truck Traffic | 2% |
| Lanes On Bridge | 2 |
| Last Inspection | June 2023 |
| Inspection Frequency | Every 48 months |
| Owner | County Highway Agency |
| Historical Significance | Bridge is not eligible for the National Register |
| Scour Critical | 8 — Stable, low risk |
| Structure Number | 000000015200083 |
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.