Applications of Multibeam Echo Sounding with Topographic Mapping for Monitoring of Rubble Mound Breakwaters

by G. G. Reynolds, Ocean Surveys, Inc., 91 Sheffield Street, Old Saybrook, CT 06475,
D. L. Bell, Ocean Surveys, Inc., 91 Sheffield Street, Old Saybrook, CT 06475,
D. D. Holly, U. S. Army Corps of Engineers, Detroit District, 477 Michigan Ave., Detroit, MI 48226,
G. Stowe, Gordie/Frazer and Associates, Inc., 124 West State St., Traverse City, MI 49684,

Document Type: Proceeding Paper

Part of: Breakwaters '99: First International Symposium on Monitoring of Breakwaters


Analysis of data from the breakwater monitoring program indicates the integration of multibeam survey capability with the increased accuracy of OTF DGPS positioning and advanced data management and analysis allows development of unprecedented detail on the condition of the submerged portions of rubble mound breakwaters. The essentially 100% coverage of the multibeam data of the below water structure coupled with above water topographic information in GIS project data bases has allowed DTM analysis to provide a significantly better understanding of the overall condition of the breakwater.

Subject Headings: Coastal protection structures | Breakwaters | Data analysis | Topographic surveys | Geographic information systems | Beams | Riprap

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