Trenton Dam
Dam in Hitchcock County, Nebraska · Republican River · forms Swanson Lake
Height
144 ft
44 m (NID height)
Length
8,600 ft
2,621 m
Completed
1953
Swanson Lake today
2,734.01 ft
7 days ▼ 0.09 ft
vs full pool
▼ 17.99 ft
Normal storage
112,214 acre-ft
Normal for the date
Reservoir level measured Oct 23, 2026, 7:00 AM CDT. Full level page →
Facts
- Purposes
- Irrigation
- Dam type
- Earth
- Structural height
- 144 ft
- Owner
- BUREAU OF RECLAMATION (Federal)
- Maximum storage
- 352,018 acre-ft
- Surface area
- 7,940 acres
- Hydraulic height
- 92 ft
- Drainage area
- 8,620 sq mi
- Spillway
- Controlled, 126 ft wide
- Army Corps district
- Omaha District
- Also known as
- Swanson Lake
- NID ID
- NE01078
Facts from the U.S. Army Corps of Engineers National Inventory of Dams, record updated Oct 6, 2026. Search NID ID NE01078 at nid.sec.usace.army.mil. Project website.