BUILDING BIG Dam Basics
Dam Basics
Tuesdays in October on PBS (check local listings) _  
Forces that act on a Buttress dam.

Buttress Dam: Forces
Water pushes against the buttress dam, but the buttresses push back and prevent the dam from toppling over. The weight of the buttress dam also pushes down into the ground.


Back to Dam Basics

_There's even more to explore at the BUILDING BIG web site, check it out at www.pbs.org/buildingbig.



  _
_