486 Avenue over Monighan Ck
Fair Condition72 years old143 vehicles/day
Location
| State | South Dakota |
| County | Deuel |
| Location | 1w & 1.5n Gary |
| Carries | 486 Avenue |
| Crosses | Monighan Ck |
| Coordinates | 44.81327, -96.47940 |
Condition Ratings
| Overall Condition | Fair |
| Deck | 5 (Fair) |
| Superstructure | 5 (Fair) |
| Substructure | 6 (Satisfactory) |
| Channel/Waterway | 4 (Poor) |
| Scour Critical | 3 — Scour critical |
Physical Characteristics
| Material | Steel |
| Design | Stringer/Multi-beam |
| Total Length | 149.0 ft (45.4 m) |
| Max Span | 48.9 ft (14.9 m) |
| Deck Width | 26.2 ft (8 m) |
| Deck Area | 363.2 sq m |
| Main Spans | 3 |
| Year Built | 1954 |
Traffic
| Avg Daily Traffic | 143 (2022) |
| Truck Traffic | 3% |
| Lanes On Bridge | 2 |
Inspection & Ownership
| Last Inspection | 824 |
| Inspection Frequency | Every 12 months |
| Owner | County Highway Agency |
| Historical Significance | Bridge is not eligible for the National Register |
| Structure Number | 000000020200114 |