A Beechcraft 200 Super King Air with five passengers experienced a severe landing at Hamburg, AB, Canada, resulting in significant damage and a loss of directional control. The aircraft lost airspeed and control during a straight-in approach on a snow-covered runway, subsequently striking a snow windrow, causing it to turn sideways and land on a stand of trees. The First Officer initiated the landing, and the aircraft landed with a five-knot tail wind. The landing was firm, but the aircraft sustained substantial damage. A rut was discovered on the runway surface, potentially contributing to the loss of control.A Beechcraft 200 Super King Air with five passengers experienced a severe landing at Hamburg, AB, Canada, resulting in significant damage and a loss of directional control. The aircraft lost airspeed and control during a straight-in approach on a snow-covered runway, subsequently striking a snow windrow, causing it to turn sideways and land on a stand of trees. The First Officer initiated the landing, and the aircraft landed with a five-knot tail wind. The landing was firm, but the aircraft sustained substantial damage. A rut was discovered on the runway surface, potentially contributing to the loss of control.