Mike:
What are the inside dimensions (hollow area) of the structure? I.D. and length?
I worked on a floating pier in San Diego Bay that developed cracks in it and was leaking. It was actually a 4 lane highway that was made of concrete that was hollow in the center, and it was towed down from the State of Washington. The cracks developed while it was being towed to SD. So, yes, I believe it floated.
Mike, if you can get the inside dimensions, you can figure it out yourself. One cubic foot of air will float 62 pounds. Or post the dimensions and I can do it.
Last edited by esshup; 11/16/10 11:06 AM. Reason: more info.