. Coastal changes, eastern Lake Michigan, 1970-1974. Coast changes. 9 May 1976 - View to north showing wide sand beach. Note offset between beach and seawall (to left of white tower).. 12 August 1974 - Narrower beach than shown in photo above; well-vegetated dune crest. Profile Line 4. Davis (1976) speculated that this sand dune profile line may be affected by a seawall located about 100 meters to the north. This is not unlikely as the dune at this profile line retreated more than any of the other profile lines during the study. Only of the total meters of reces- sion occurred between
. Coastal changes, eastern Lake Michigan, 1970-1974. Coast changes. 9 May 1976 - View to north showing wide sand beach. Note offset between beach and seawall (to left of white tower).. 12 August 1974 - Narrower beach than shown in photo above; well-vegetated dune crest. Profile Line 4. Davis (1976) speculated that this sand dune profile line may be affected by a seawall located about 100 meters to the north. This is not unlikely as the dune at this profile line retreated more than any of the other profile lines during the study. Only of the total meters of reces- sion occurred between October 1973 and December 1974. The beach was very active with evidence of both overall beach accretion and erosional scarps appearing in the 4-week interval between surveys. There was a net increase in beach volume between October 1973 and December 1974. 63. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original Birkemeier, William A. (William Allen), 1951-; Coastal Engineering Research Center (U. S. ). Fort Belvoir, Va. : U. S. Army, Corps of Engineers, Coastal Engineering Research Center ; Springfield, Va. : National Technical Information Service, Operations Division [distributor]
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