Basic Facts (at the time of July 31, 1989)

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Basic Facts (at the time of July 31, 1989) 
Total border length around West  Berlin 96 mi /
155 kmBorder between East and West Berlin 27
mi / 43.1 kmBorder between West Berlin and East
Germany 69 mi / 111.9 kmBorder through
residential areas in Berlin 23 mi / 37
kmConcrete segment wall 3.6m (11.81 ft.) high,
66 mi / 106 kmWire mesh fencing 41 mi / 66.5
kmAnti-vehicle trenches 65 mi / 105.5
kmContact or signal fence 79 mi / 127.5
kmColumn track 6-7 m (7.33 yd) wide, 77 mi /
124.3 kmNumber of watch towers 302Number of
bunkers 20Persons killed on the Berlin Wall
192Persons injured by shooting ca. 200