Specifications include, but are not limited to: Moldboard Specifications: The moldboard shall be 11’ long overall and not less than 42” high at inside of top radius. The moldboard shall have an integral snow deflector that extends a minimum of 12” fore of the cutting edge. The moldboard shall be brake formed (not rolled) from not less than 8 gauge H.R.M.S sheet. It shall include an integral formed channel at the leading top edge of the snow deflector, so to provide rigidity. The moldboard shall be supported by not less than (8) 1/2” thick vertical ribs, (6) of which serve as push frame connection points. Holes for pin connections shall be reinforced with not less than 1/2” thick bosses. Additional moldboard support shall be provided by a lower horizontal member from not less than 5” x 5” x 1/2” structural angle. This angle shall also have hinge lugs welded to it and serve as the trip edge attachment member.