Description:
Much of the existing lakefront for the City of Chicago was created as a large landfill project in the 1920’s and 1930’s. The project was protected from waves by a stepped-stone revetment that has fallen into disrepair.
Issue:
The U.S. Army Engineer District, Chicago (LRC), requested that the CHL conduct a physical model study to measure overtopping rates for various cross-sectional configurations of a proposed stepped revetment for the Chicago lakefront. The new revetment is being planned as part of the Chicago Shoreline Storm Damage Reduction Project.
Supporting Technology:
Physical model studies at a 1:38 (model:prototype) scale were conducted in a two-dimensional wave flume equipped with a computer-controlled wave generator. Design storm parameters were determined by LRC based on wave hindcasts and measured wave conditions.
Benefits:
Overtopping rates measured in a physical model will aid in selection of cross-section configuration and design of drainage system.
Sponsors:
U.S. Army Engineer District, Chicago (LRC).
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