Looks like good fishing water alright. You already know that minimum OSHA distance is ten feet on electric clearance, but I've seen the juice jump more than that when conditions were right. Very nervous working close to electricity.
The power company blanketed the wires for us and provided a spotter. Even so I don't like getting that close. I wouldn't have done it unless they said it was ok.
how watertight can you get those sheets for the coffer? how do you get them up ? and how easy are they to drive? i was thinking about using them to isolate an area where i want to build a boat house and boat slip. wondering if it is feasable?
The sheets are pretty water tight. Depending on the amount of ground water there is it shouldn't be a problem to keep them pumped out. The ones I've done before a 3" trash pump at an idle kept up with it once it was dewatered. You need to install some false work to keep them straight. Make sure the first sheet you drive is plumb. These sheets were only 25' long so we threaded them off a ladder. If there to tall for that you have to have a guy set up on the wall threading them together. How hard they drive depends on your soil conditions. I've seen the weight of the vibratory hammer push them into the ground without vibrating and have vibrated on sheets for close to 2 hours each to get them down.
The first pic is the our vibro. It weighs 9,500#.
If you've ever watched The Deadliest Catch on the Discovery Channel it has showed several boat tied up at Akutan at the Processor unloading. The next four pics are of that dock we installed in 04. The second and third pic shows the Stabber sitting on the wall. Stabbing sheets is a pain in the butt job, literally!
