IRR Sd1806 over Cedar Ck
Good Condition29 years old161 vehicles/day
Location
| State | South Dakota |
| County | Lyman |
| Location | 6.4 NW Jct Sd 273 |
| Carries | IRR Sd1806 |
| Crosses | Cedar Ck |
| Coordinates | 44.14492, -99.93285 |
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 | 137.1 ft (41.8 m) |
| Max Span | 35.1 ft (10.7 m) |
| Deck Width | 38.7 ft (11.8 m) |
| Deck Area | 493.2 sq m |
| Main Spans | 4 |
| Year Built | 1997 |
Traffic
| Avg Daily Traffic | 161 (2024) |
| Truck Traffic | 18% |
| Lanes On Bridge | 2 |
Inspection & Ownership
| Last Inspection | 324 |
| Inspection Frequency | Every 24 months |
| Owner | State Highway Agency |
| Historical Significance | Bridge is not eligible for the National Register |
| Structure Number | 000000043218036 |