Section 219-29-04 - General Construction RequirementsA. Permanent grandstands shall be erected upon and attached to concrete or masonry foundations extending below the maximum depth of frost and at least six (6") inches above natural grade.B. Grandstands shall be designed to support, in addition to their own weight, a uniformly distributed live load of not less than one hundred (100) pounds per square foot of gross horizontal projection of the grandstand. All seats and foot-board members shall be designed for live loads of not less than one hundred twenty (120) pounds per linear foot. Grandstands shall be designed to resist, without live load, a horizontal wind load of thirty (30) pounds per square foot of all vertical projections of the stand, and with full live load, one half of such wind load. Grandstands shall be designed to resist a horizontal swaying force applied to the seats in a direction parallel to the length of the seats, of twenty-four (24) pounds per linear foot of seats, and in a direction perpendicular to the length of the seats of ten (10) pounds per linear foot of seats.C. Portable grandstands and bleachers shall be provided with wood sleepers or mud sills of at least two inch (2") plank, or shall be supported on masonry footings. If so directed, sills shall be placed both parallel and at right angles to seating platforms. All bearing surfaces shall make contact as the Commissioner shall direct.D. Mud sills or sleepers shall be of adequate area to support superimposed loads without settlement, and shall be secured against lateral movement. The toe of each stringer shall be secured to the mud sill or sleeper, all horses or posts shall be provided as directed. No more than one cantilever seat shall be permitted.16-219 C.M.R. ch. 29, § 04