Without Barricades. Every magazine for explosives shall be isolated by a safety clearance according to capacity as follows:
Capacity of Magazine (Pounds) | At Surface of Ground (Feet) |
100 or less | 100 |
101 to 500, inclusive | 400 |
501 to 1,000, inclusive | 600 |
1,001 to 1,750, inclusive | 800 |
1,751 to 2,500, inclusive | 1,000 |
Such capacity shall be confined to the cubic contents allowable for such quantity of the particular type of commercial explosives for which a permit or license has been issued, in accordance with the provisions of this Code regulating such use. Every magazine for fireworks shall be isolated by a safety clearance of not less than one-half the safety clearance required by this paragraph for explosives, for any like given quantity in pounds.
With Barricades. Whenever a magazine for explosives is screened by natural features of the ground, or by an artificial mound of solid earth of such height that any straight line drawn from the top of any side wall of such magazine to any point 25 feet above the nearest lot lines, or the highest point of any building within the radius to be protected, will pass through such intervening earth barrier, then such minimum required horizontal safety clearances required by the first paragraph of this section may be reduced 50 percent; provided, however, that for every one foot such magazine is depressed below the street grade at a quarry or other pit, such minimum required horizontal safety clearance may be reduced ten feet; provided further, that such lateral safety clearance shall be not less than 25 feet in any case.
(Prior code § 125-14)