Us018 over Angostura Main Canal
Fair Condition70 years old1,782 vehicles/day
Location
| State | South Dakota |
| County | Fall River |
| Location | 3 S Jct Sd 79 |
| Carries | Us018 |
| Crosses | Angostura Main Canal |
| Coordinates | 43.35825, -103.39461 |
Condition Ratings
| Overall Condition | Fair |
| Channel/Waterway | 8 (Very Good) |
| Culvert | 6 (Satisfactory) |
| Scour Critical | 8 — Stable, low risk |
Physical Characteristics
| Material | Concrete Continuous |
| Design | Culvert |
| Total Length | 23.3 ft (7.1 m) |
| Max Span | 11.2 ft (3.4 m) |
| Deck Area | 78.1 sq m |
| Main Spans | 2 |
| Year Built | 1956 |
Traffic
| Avg Daily Traffic | 1,782 (2023) |
| Truck Traffic | 17% |
| Lanes On Bridge | 2 |
Inspection & Ownership
| Last Inspection | 624 |
| Inspection Frequency | Every 48 months |
| Owner | State Highway Agency |
| Historical Significance | Bridge is not eligible for the National Register |
| Structure Number | 000000024334083 |