 FACT: When Ians gang is seeking access to the Archives by entering  the utility tunnel in the street beneath their van, one man with two  hooks and a chain easily lifts the utility grate from the street by  himself. The grate also is shown to be very thin gage metal and  sounds it as it is removed. Any utility grates and castings placed  in traffic are normally very heavy so as to be structurally sound  under traffic loads. There would be no way for a man to easily lift  such a grate in the manner he did, nor would such a light duty grate  be placed in traffic.