Trix
Keeper of San Juan Secrets
Well, I'm not going to try to remember my trigonometry to check your calculations, but I think you need to consider the depth at the end of the yet to be installed steel mats. Buffalo reported that they are 14 by 40, so the minimum extension would be 14 feet, probably a couple laid down for 28 feet. Also, isn’t the critical measurement the length from rear tow vehicle wheels to rear trailer axle, not boat length? As far as measuring pole, end of concrete is what, about a vertical foot, maybe 2, from current water level of about 3522.6, so elevation is about the 3525 stated in announcements (I think). Jot that down in your iPhone notes. I keep expecting Dave to add the new ramps to his LP Water Database.