On February 1, 1994, at 1830 hours central standard time, a Piper PA-28R-200, N5094S, operated by a student pilot/airplane co- owner, sustained substantial damage when it touched down short of the runway and struck a snowbank at the Burlington Municipal Airport, in Burlington, Wisconsin. The student pilot, the sole occupant, reported no injuries. Visual meteorological conditions prevailed for the local flight, no flight plan was filed. The flight operated under 14 CFR Part 91, and originated from Burlington, Wisconsin approximately 1740 hours. The student pilot reported he was practicing night touch and go landings on Runway 29 at Burlington. He stated he landed short of the runway on the second touch and go. The airplane struck the snow bank at the end of the runway, and the main landing gear separated from the airplane. The airplane skidded down the left (south) side of the runway, and came to a stop facing the approach end of the runway.