what does "packed ten and twelve deep"mean?

on Travis Street the spectators were packed ten and twelve deep, and behind them the traffic was backed up for miles.

Question

what does "packed ten and twelve deep"mean?


on Travis Street the spectators were packed ten and twelve deep, and behind them the traffic was backed up for miles.

Answer

my guess would be 10 across and 12 from front to back:

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Answer

The spectators were lined up along the street in rows.  There were ten to twelve rows of people, one behind the other.