Nebraska Administrative Code
Topic - STATE PATROL
Title 272 - NEBRASKA STATE PATROL
Chapter 9 - STORAGE OF EXPLOSIVES
Section 272-9-007 - Construction of Type 1 Storage Facilities

007.01A Masonry Wall Construction. Masonry wall construction shall consist of brick, concrete, tile, cement block, or cinder block and shall be not less than 6 inches in thickness. Hollow masonry units used in construction shall have all hollow spaces filled with well-tamped coarse dry sand or weak concrete (a mixture of one part cement and eight parts of sand with enough water to dampen the mixture while tamping in place). Interior walls shall be covered with a non-sparking material.

007.01B Fabricated Metal Wall Construction. Metal wall construction shall consist of sectional sheets of steel or aluminum not less than number 14 gauge, securely fastened to a metal framework. Such metal wall construction shall be either lined inside with brick, solid cement blocks, hardwood not less than 4 inches in thickness, or shall have at least a 6-inch sand fill between interior and exterior walls. Interior walls shall be constructed of, or covered with, a non-sparking material.

007.01C Wood Frame Wall Construction. The exterior of outer wood walls shall be covered with iron or aluminum not less than number 26 gauge. An inner wall of non-sparking material shall be constructed so as to provide a space of not less than 6 inches between the outer and inner walls, which space shall be filled with coarse dry sand or weak concrete.

007.01D Floors. Floors shall be constructed of a non-sparking material and shall be strong enough to bear the weight of the maximum quantity to be stored.

007.01E Foundations. Foundations shall be constructed of brick, concrete, cement block, stone or wood posts. If piers or posts are used, in lieu of a continuous foundation, the space under the buildings shall be enclosed with metal.

007.01F Roof. Except for buildings with fabricated metal roofs, the outer roof shall be covered with no less than number 26-gauge iron or aluminum fastened to 7/8 inch sheathing or 26 gauge aluminum, fastened to seven-eighths inch (.875") sheathing. Poured concrete roofs may be used on facilities on a case by case basis and must be of equal or greater strength and bullet resistance as other approved roffs.

007.01G Bullet-Resistant Ceilings or Roofs. Where it is possible for a bullet to be fired directly through the roof and into the storage facility at such an angle that the bullet would strike a point below the top of inner walls, storage facilities shall be protected by one of the following methods:

007.01H Doors. All doors shall be constructed of 1/4 inch plate steel and lined with 2 inches of hardwood. Hinges and hasps shall be attached to the doors by welding, riveting or bolting (nuts on inside of door). They shall be installed in such a manner that the hinges and hasps cannot be removed when the doors are closed and locked.

007.01I Locks. Each door shall be equipped with two mortise locks; or with two padlocks fastened in separate hasps and staples; or with a combination of mortise lock and padlock; or with a mortise lock that requires two keys to open; or a three-point lock. Locks shall be five-tumbler or five-blade. All padlocks shall be protected with 1/4 inch steel caps constructed so as to prevent sawing or lever action on the locks or hasps. Semitrailer, tank trucks, and other mobile storage facilities locked with one steel case hardened five-tumbler padlock, having at least 3/8-inch shackle diameter are determined to meet the necessary requirements of this section provided that hinges and hasps are securely fastened to the storage facility and that all locking hardware is secured rigidly and directly to the door frame. Accordingly, only one such Padlock will be required for each door or opening for semitrailer, tank trucks, and other mobile facilities; and such padlocks need not be protected by steel caps.

007.01J Ventilation. Except at doorways, a 2 inch air space shall be left around ceilings and the perimeter of floors. Foundation ventilators shall be not less than 4 by 6 inches. Vents in the foundation, roof or gables shall be screened and offset. A side wall and door Ventilator that are screened and bullet-resistant can be substituted for foundation ventilators.

007.01K Exposed Metal. No sparking metal construction shall be exposed below the top of walls in the interior of storage facilities, and all nails therein shall be blind-nailed or countersunk.