On the night of 6 to 7 November 1824 in the area of. Kotlin started strong storm. The water rose above the normal of 3.5 m Such floods not yet know the history of the city. It was destroyed bastions, all the guns to pull off to the shore. On the redoubt completely washed away all the designs. Kessel destroyed a battery. They are located at the guard house also pulled down into the water. Powder magazines on all the fortifications destroyed. bridges ripped to the level of the piles. many of the soldiers stationed at the post drowned.