 The construction schedule had called for the tunnel to be completed after nine years of work; however, a greater rate of progress than this conservative projection was achieved, thus construction was completed nearly six months ahead of schedule.This was despite the need for unplanned remedial work, such as the reprofiling of 20 meters of the northern bore after fracturing had brought about a temporarily standstill in the work.The total cost of the Vereina Tunnel reportedly came to CHF 670 million.