Artificial Beach Design, Lake Forest, Illinois

by C. D. Anglin, W. F. Baird & Associates Coastal, Engineers Ltd, Ottawa, Ont, Canada,
K. J. MacIntosh, W. F. Baird & Associates Coastal, Engineers Ltd, Ottawa, Ont, Canada,
W. F. Baird, W. F. Baird & Associates Coastal, Engineers Ltd, Ottawa, Ont, Canada,
D. J. Werren, W. F. Baird & Associates Coastal, Engineers Ltd, Ottawa, Ont, Canada,



Document Type: Proceeding Paper

Part of: Coastal Zone '87

Abstract:

A system of beaches and offshore breakwaters was designed to protect eroding bluffs along the shoreline of the City of Lake Forest. The beach system consists of sand fill contained by a series of offshore breakwaters with shore-connected structures at either end. Individual beach units are separated by groins which extend shoreward from the offshore breakwaters. A three dimensional hydraulic model study was completed at a geometric scale of 1:20 to design the beach system. The effects of incident wave direction and water level on beach response and stability were assessed. Stable beach plans and profiles were developed under the model storm conditions. Construction of the offshore breakwaters began in the spring of 1986, with sand fill being placed in the fall of 1986.

Subject Headings: Beaches | Coastal protection structures | Offshore structures | Breakwaters | Hydraulic models | Hydraulic design | Sand (hydraulic) | Illinois | United States

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