| Trenton Dam | |
| Location Map: | Nebraska#USA |
| Coordinates: | 40.1628°N -101.0633°W |
| Country: | United States |
| Location: | Hitchcock County, Nebraska |
| Status: | Operational |
| Opening: | 1953 |
| Dam Height: | 144feet |
| Dam Length: | 8600feet |
| Res Name: | Swanson Lake |
| Res Capacity Total: | 246291acre feet |
| Res Elevation: | 839m (2,753feet) |
Trenton Dam is a dam on the Republican River in Nebraska, standing in Hitchcock County in the southwestern part of the state. The facility stands about 2 and one-half miles west of Trenton, Nebraska.
The dam is a project of the United States Bureau of Reclamation and was built between 1949 and 1953 for irrigation water storage and flood control. At high, the dam's length is at its crest.[1]
Lake Swanson is the reservoir formed by the dam, with a capacity of . It is popular for recreational fishing, boating, camping, hunting and hiking, with of water surface, of land, and about of shoreline.[2]