. Coastal changes, eastern Lake Michigan, 1970-1974. Coast changes. 8 May 1973 - View north toward the profile line. Note width of beach in foreground and indentation near surveyors. ,**^j-3*-^ 11 September 1974 - Closeup of till bluff. Beach is narrower than in above photo. Profile Line 13. The till bluff at profile line 13 retreated the least of all 17 profile lines. The stability of the area is primarily a result of the com- position of the bluff but may also be due to a coastal protuberance composed of till located to the south. The major cliange between October 1973 and December 19
. Coastal changes, eastern Lake Michigan, 1970-1974. Coast changes. 8 May 1973 - View north toward the profile line. Note width of beach in foreground and indentation near surveyors. ,**^j-3*-^ 11 September 1974 - Closeup of till bluff. Beach is narrower than in above photo. Profile Line 13. The till bluff at profile line 13 retreated the least of all 17 profile lines. The stability of the area is primarily a result of the com- position of the bluff but may also be due to a coastal protuberance composed of till located to the south. The major cliange between October 1973 and December 1974 was a small amount of bluff recession of the bluff crest ( meter) and a steepening of the base of the bluff. This steepening was accom- panied by erosion of the beach. By May 1976, the area appeared to be seri- ously eroding. There was almost no beach, and the property owner had placed large concrete blocks just offshore in hopes of dissipating some of the wave energy. 81. 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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