Formation 176th Tunnelling Company was formed at
Lestrem in the
Pas-de-Calais department in the
Nord-Pas-de-Calais region of
France in April 1915, and moved soon after to the
Neuve Chapelle area, facing
Bois du Biez.
Givenchy 1915 In June 1915 the company was moved to
Givenchy, where it relieved
170th Tunnelling Company which had been operating there since spring 1915 to counter enemy mining activity in that sector. From spring 1916, the British had deployed five tunnelling companies along the Vimy Ridge, and during the first two months of their tenure in the area, 70 mines were fired, mostly by the Germans. Between October 1915 and April 1917 an estimated 150 French, British and German charges were fired in this sector of the Western Front. The original plan had called for 17 mines and 9
Wombat charges to support the infantry attack, of which 13 (possibly 14) mines and 8
Wombat charges were eventually laid. In order to assess the consequences of infantry having to advance across cratered ground after a mining attack, officers from the Canadian Corps visited
La Boisselle and
Fricourt where the
mines on the first day of the Somme had been blown. Their reports and the experience of the Canadians at
St Eloi in April 1916 – where mines had so altered and damaged the landscape as to render occupation of the mine craters by the infantry all but impossible –, led to the decision to remove offensive mining from the central sector allocated to the Canadian Corps at Vimy Ridge. Further British mines in the area were vetoed following the blowing by the Germans on 23 March 1917 of nine craters along
no man's land as it was probable that the Germans were aiming to restrict an Allied attack to predictable points. The three mines already laid by
172nd Tunnelling Company were also dropped from the British plans. They were left in place after the assault and were only removed in the 1990s. Another mine, prepared by 176th Tunnelling Company against the German strongpoint known as the Pimple, was not completed in time for the attack. The gallery had been pushed silently through the clay, avoiding the sandy and chalky layers of the Vimy Ridge, but by 9 April 1917 was still short of its target. In the end, two mines were blown before the attack, while three mines and two
Wombat charges were fired to support the attack, including those forming a northern flank. Other units active around Vimy were
175th,
182nd,
184th and
255th Tunnelling Companies. ==See also==