Earthen Fill Cofferdams
"The Old Way of Water Management"
Weber River
Riverdale, UT (2001)
Page 1 of 2
The most common way to cofferdam a river used to be using earthen fill material and heavy equipment. For three days, this contractor attempted to place enough fill material in the river to block the river off and force it through a diversionary channel, but it kept washing out. 
Riverdale, UT
The diversionary channel was not large enough to accept the entire flow of the river without causing heavy erosion, the very thing that they were trying to prevent.
Riverdale, UT
This is why AquaDams® are the preferred method of diverting rivers.
Riverdale, UT