I love salvaging logs. I wish i had a boat, it would make it much easier to do so(i once strapped a yellow cedar log to my kayak and paddled it to a beach with better access, boy was that hard work). Right now i mainly am grabbing small diameter logs which i can carry out by hand. Otherwise i cut up big old cedar booms and make them into 10' long
fence posts.
Nice find, i imagine if the log sat out of the
water in a sunny spot you could be cutting it by next year or even sooner. With it not having any bark on it, it most likely doesn't hold the water to well. A few years back i helped a community member cut up some pine/fir which had been floating in his
pond for a few years, we pulled it out and cut it up right there with his bandsaw mill.