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Lemolo No 1 is a captivating hydroelectric dam located in Idleyld Park, Oregon, along the picturesque North Umpqua River. Built in 1955 by Pioneer Service & Engineering, this rockfill dam stands at an impressive height of 120 feet and boasts a storage capacity of 19,000 acre-feet. With a primary purpose of generating hydroelectric power, the dam also provides opportunities for recreational activities in its vicinity.
Managed by the Federal Energy Regulatory Commission, Lemolo No 1 is a vital infrastructure for water resource and climate enthusiasts. The dam's controlled spillway, with a width of 100 feet, ensures the safe release of excess water during high flow events. With a hazard potential rated as high and a risk assessment indicating a very high risk level, the dam is closely monitored and inspected to ensure public safety and environmental protection.
Despite its age, Lemolo No 1 continues to play a crucial role in water management and renewable energy production in Douglas County, Oregon. Its strategic location, impressive height, and significant storage capacity make it a key player in the region's water resource infrastructure. For enthusiasts interested in water management and climate resilience, Lemolo No 1 is a fascinating example of engineering ingenuity and environmental stewardship.
Year_Completed | 1955 |
Dam_Height | 120 |
River_Or_Stream | North Umpqua River |
Dam_Length | 885 |
Primary_Dam_Type | Rockfill |
Surface_Area | 419.1 |
Hydraulic_Height | 109 |
Drainage_Area | 175 |
Nid_Storage | 19000 |
Structural_Height | 120 |
Outlet_Gates | Tainter (radial) - 1 |
Hazard_Potential | High |
Foundations | Rock, Soil |
Nid_Height | 120 |
MIDDLE FORK WILLAMETTE RIVER NEAR DEXTER | 3730cfs |
ROW RIVER ABOVE PITCHER CREEK NEAR | 142cfs |
WINBERRY CREEK NEAR LOWELL | 29cfs |
MF WILLAMETTE RIVER BLW N FORK | 3320cfs |
MIDDLE FORK WILLAMETTE RIVER AT JASPER | 4130cfs |
M F WILLAMETTE R AB SALT CR. | 1820cfs |
FALL CREEK BLW WINBERRY CREEK | 222cfs |