Please use this identifier to cite or link to this item: https://hdl.handle.net/11681/7460
Title: Periodic inspection of Burns Harbor North Breakwater, Indiana. Armor unit monitoring for period 1994-1999
Authors: United States. Army. Corps of Engineers. Chicago District
Bottin, Robert R.
Tibbetts, Mary K.
Keywords: Aerial photography
Armor stone
Breakwaters
Burns Harbor, NY
Orthophotography
Periodic inspections
Photogrammetry
Remote sensing
Stereo pairs
Stone deterioration
Issue Date: Jul-2000
Publisher: Coastal and Hydraulics Laboratory (U.S.)
Engineer Research and Development Center (U.S.)
Series/Report no.: ERDC/CHL TR ; 00-12.
Description: Technical report
Under the Periodic Inspections Work Unit of the Monitoring Completed Navigation Projects Program, precise position data have been re-established for the above-water armor stone on the Burns Harbor North Breakwater and compared with data obtained previously. The positions of the armor stone layer over the 1,414-m (4,640-ft) length of the breakwater was defined through limited ground surveys, aerial photography, and photogrammetric analysis. Contour maps of the breakwater as well as cross sections of the structure were developed. In addition, a database of broken armor stones was updated. Results of the monitoring indicate that loss of breakwater crest elevation has continued to occur as well as continued armor stone breakage since the last inspection of 1994. The site will be revisited periodically in the future and the long-term structural response of the breakwater to its environment will continue to be tracked. The periodic data sets will be used to improve knowledge in design, construction, and maintenance of the existing structure as well as proposed future coastal projects.
URI: http://hdl.handle.net/11681/7460
Appears in Collections:Technical Report

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