In order to prevent 6 raised parking structures from collapsing, we backfilled the structures with cellular concrete, which was 873 cubic yards. By doing this, it has filled the voids and now protects the structures from collapsing.
  
  
 
 
 

 
 
 
 
 
 
 
 
 
 
 
 
 

                                                                                                                                                                                          
}