Us016a over Grace Coolidge Ck
Good Condition40 years old625 vehicles/day
Location
| State | South Dakota |
| County | Custer |
| Location | 0.1 N Jct Sd 36 E |
| Carries | Us016a |
| Crosses | Grace Coolidge Ck |
| Coordinates | 43.77322, -103.33967 |
Condition Ratings
| Overall Condition | Good |
| Deck | 7 (Good) |
| Superstructure | 7 (Good) |
| Substructure | 7 (Good) |
| Channel/Waterway | 7 (Good) |
| Scour Critical | 8 — Stable, low risk |
Physical Characteristics
| Material | Concrete Continuous |
| Design | Slab |
| Total Length | 69.9 ft (21.3 m) |
| Max Span | 26.9 ft (8.2 m) |
| Deck Width | 34.8 ft (10.6 m) |
| Deck Area | 225.8 sq m |
| Main Spans | 3 |
| Year Built | 1986 |
Traffic
| Avg Daily Traffic | 625 (2024) |
| Truck Traffic | 4% |
| Lanes On Bridge | 2 |
Inspection & Ownership
| Last Inspection | November 2022 |
| Inspection Frequency | Every 48 months |
| Owner | State Highway Agency |
| Historical Significance | Bridge is not eligible for the National Register |
| Structure Number | 000000017358065 |