A BTR-70 was parked outside building, along with barricades made of sandbags and tyres. The 17th Street Canal levee breach was closed with truckloads of rock and sandbags. The windows and arches of Akal Takht were blocked with bricks and sandbags. The remaining eight were ad-hoc machine gun pillboxes, protected mostly by sandbags and earthworks. When permanent defenses fail, emergency measures such as sandbags or inflatable impermeable sacks are used. All of these positions were protected by sandbags and newly made brick walls. First responders distributed sandbags in many counties. The projectile is capable of penetrating up to of concrete, of brick, or of sandbags. Instructions for blackouts and sandbags for extinguishing fires were placed throughout the complex. The third team member will transport and stockpile the filled sandbags. A wall constructed of sandbags is an example of a temporary barrier. He quickly fires off one more shot before running back for cover behind sandbags. Today they are also sometimes used as sandbags for erosion control. Initially, they protected the bodies with steel deflector plates, sandbags and mine conveyor belting. The interior of the club was made to simulate a combat dugout complete with sandbags.