[TowerTalk] Base question

[K7LXC at aol.com]

Howdy, TowerTalkians. --
 
    I'm installing my first AN Wireless tower and the  base is humongous. 
For a 96' Trylon, the base has approximately 8 yards of  concrete in the 
base. This AN tower calls for around 25 yards - and it's only a  60' tower. Is 
this as ridiculous as it seems - 3 times as much concrete?  - or has the new 
TIA-222 rev had a big impact on tower base construction? 
 
    Tnx for any enlightenment.
 
Cheers,
Steve     K7LXC
TOWER TECH