04-11-2010, 12:52 PM
Here is info on the CLIFF they would have fallen off of had they not been stopped by the concrete. (Or if they just did their f'n jobs!)
VERY INTERESTING.
http://geosyntheticsmagazine.com/article...ncate.html


VERY INTERESTING.
http://geosyntheticsmagazine.com/article...ncate.html


