Spillway and Stilling Basin for Lookout Point Dam, Middle Fork Willamette River, Oregon; Hydraulic Model Investigations.
ARMY ENGINEER DIV NORTH PACIFIC BONNEVILLE OREG DIV OF HYDRAULIC LAB
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Model investigations for Lookout Point Dam were concerned with the hydraulic performance of the spillway and stilling basin, regulating outlets, and outlet channel. Two undistorted models were used in the principal investigations a a 172-scale general model and b a model of a single regulating outlet constructed to scale ratios of 116 and then 119.2 the model scale was changed to compensate for enlargement of outlets. Supplemental tests to determine the hydraulic effects of H-beams half-embedded in the spillway pier noses were made on a 133-scale sectional model of the spillway for Chief Joseph Dam. The H-beams were proposed for use as emergency gate guides at Lookout Point Dam.
- Civil Engineering