109th Street over Elm River
Fair Condition101 years old27 vehicles/day
Location
| State | South Dakota |
| County | Brown |
| Location | 1.7s & 6.7w Of Frederick |
| Carries | 109th Street |
| Crosses | Elm River |
| Coordinates | 45.80830, -98.65149 |
Condition Ratings
| Overall Condition | Fair |
| Deck | 7 (Good) |
| Superstructure | 6 (Satisfactory) |
| Substructure | 6 (Satisfactory) |
| Channel/Waterway | 6 (Satisfactory) |
| Scour Critical | Unknown |
Physical Characteristics
| Material | Prestressed Concrete |
| Design | Tee Beam |
| Total Length | 61.0 ft (18.6 m) |
| Max Span | 29.9 ft (9.1 m) |
| Deck Width | 30.8 ft (9.4 m) |
| Deck Area | 174.8 sq m |
| Main Spans | 2 |
| Year Built | 1925 (reconstructed 1975) |
Traffic
| Avg Daily Traffic | 27 (2022) |
| Truck Traffic | 2% |
| Lanes On Bridge | 2 |
Inspection & Ownership
| Last Inspection | 724 |
| Inspection Frequency | Every 24 months |
| Owner | County Highway Agency |
| Historical Significance | Bridge is not eligible for the National Register |
| Structure Number | 000000007036090 |