The battery
installed on the actual beach at Riva-Bella, in the spring of 1942, was
made up of six 155-mm guns placed in concrete pits. Its main job was to
control the mouth of the Orne and its canal.
Because of
their vulnerability to air attacks, and due to the absence of protective
casemates, the guns were removed from their emplacements in May 1944 and
transported inland. The battery therefore played no role whatsoever on
D-Day.