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Sand Bypassing at Indian River Inlet, Delaware

by James E. Clausner, USAE Waterways Experiment Station, Vicksburg, United States,
Jeffrey A. Gebert, USAE Waterways Experiment Station, Vicksburg, United States,
Augustus T. Rambo, USAE Waterways Experiment Station, Vicksburg, United States,
Keith D. Watson, USAE Waterways Experiment Station, Vicksburg, United States,



Document Type: Proceeding Paper

Part of: Coastal Sediments

Abstract:

To solve a beach erosion problem north of Indian River Inlet, Delaware, the US Army Corps of Engineers Philadelphia District and the State of Delaware have constructed a fixed plant sand bypass system. The system uses a jet pump deployed from a crawler crane to mine the accretion fillet. During the first year of operation, the plant has bypassed over 100,000 cubic yards, the design bypass volume. Up to 600 ft south of the inlet, the bypass operation has probably reduced beach width slightly from what would have been expected.

Subject Headings: Sandy soils | Sand (hydraulic) | River bank stabilization | Inlets (waterway) | Pumps | Erosion | Cranes | United States | Delaware | Philadelphia | Pennsylvania

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