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D~partment of Administration Adopted P~rmanent Rules Relating to Manufactured Home Park Storm Shelter Design The rllll:S rropn'icd IInd ruhli..h~d lit !if"tt Rc'gi.Jttr. Volume 12. Numher :!O. pagc,; 1030-IO~4. Nu,,"cmhcr 16: 19M7 (\2 S.lt 1(30) arc adnplcd a" J'!lUposcd. 1370.0100 PURPOSE. The purpose of parts I 370.0 H)() to Ij70.0230 is to provide minimum standards of dcsign an(l construction of buildings to provide protection for manufactured home park occupants from tornadoes and. extreme winds. 1370.0110 SCOPE. Parts 1370.0100 to 1370.0230 apply to buiidings or portions of buildings that are designed for use as man~factured home park Slorm shelters. 1370.0120 DEFINITIONS. Subpart' I. Scope. The definitions in this part apply to parts 1370.0100 to 1370.0230. Subp. 2, Storm sbelter. "Storm sbelter" means D structure or portion of a structure designed in compliance with parts 1370.0100 to 1370.0230. Subp. 3. Dual purpose. storm shelter. "Dual purpose storm shelter" means a structure or portion of a structure designed for use as a storm shelter U11d also designed for some other secondary permiued use. . Subp. 4. Single purpose storm ~beUer. "Single purpose storm shelter" means a structure designed for use only as a storm shelter. 1370.0130 APPLICABLE REQUIREMENTS. Subpart I. Incorporation by reference. ~'Interim Guidelines for Building Occupant Protection from Tornadoes and Extreme Winds," TR-83A January 1980. sections 1 and 2. published by the Federal Emergency Management Agency. Washington. D.C.. is incorporated by reference and must be used to detcrmine design I"ads and as a guide for use .in de~igning storm shelters. The document is not subject to frequent change and is availab1e: (1) in the Minnesota State Law Librory; (2) from the Printing and Publications Division. Federa1 Emerge'lcy Managem.:nt Agency. P.O',.Box 8181. Washington. D.C120024; nnd from the Minnesota Department of Public Safety. Division of Emergency Services, 85 State Capitol. Saint Pau1. Minnesota SSIS~. Subp. 2. Dual purpose storm sbelters. A dual purpose storm shelter must comply with other app1icable requirements of the state' building code for its other intended U5CS. 1370.0140 PLANS, SPEClnCATlONS, PERMITS. Storm shelter plans. engineering calculations, diagrams. and other required data must be prepared by a registered architect or engineer licensed to practice in Minnesota. For permit procedures. See section 304 of the Uniform Building Code, incorporated by reference in parts 1305.0100 and 1305.0800. 1370.0150 SPACE REQUIREMENTS. A minimum of four square feet per person must be provided within a storm shelter. "A ceiling height of not less than seven feet must be provided over 60 percent of the floor area. ..;L. (J I (.t./ 0 , 1370.0160 REQUIRED EXITS. , Subpart 1. Exits; openings. At least two cxits must be provided in compliance with chapter 33 of the Uniform Building Code. The ~ccond exit from a single purpose: storm shelter may have an opening of at least nine square feet with a minimum of 20 inches in width and the bottom of the opening not. more ,than 44 inches from the floor. Openings in the exterior walls of the shelter must be protected to prevent flying missiles from entering the interior of the shelter. <subp. 2. Handicapped access. At least one of the exits must comply with chapter 1340. facilities for the handicapped. Subp. 3. ExU to exterior. When a ponion of a 5tructure is designed as a storm sheltc:. ?ne wt must be directly to the exterior of the building or to an exit system complying with the stiltc building code. 1370.0170 DRY INTERIOR. Provisions must be madc 10 construct storm shelters out5ide of flood-prone areas and other nonwater ponding areas and so that the interiors remain reasonably dry. 1370.0180 UTiLITY I.1NE HAZARDS. Hazardous utility lincs must not be loc:ued in or near Ii 5torm shelter. The underground electrical service required by pan 1370.0200 is exempt from this requirement. 1370.0190 MINll\UZING FIRE DANGER. Storm shellers must be constructed to minimizc lhe danger or lire from both extcrnaland inlenia1 sources. 1370.0200 ELECTRICAL I'OWER. Undcr~round electrical scrvice must be pruvided to Ii storm sheller. QA. tt,.....1 .'~ ~ e l t'\.",j~ {l c- ~J-,?- ~?:?.s- r>> J , I 0/' 1..( <..ol -+< L.(,J... 7- (c./ 16