I scrolled around that lake on google maps / satellite and stopped about 2/3 the way around - I counted at least four places that power lines cross coves and could easily create an issue like this one in that cove. The poles supporting the wires ashore look to be relatively short from the satellite view. There are a number power line hazards on that lake and judging from a few submerged roads, I suppose those power lines may have been in place before the lake was flooded to full pond or something.
This is in the cove mentioned above
https://goo.gl/maps/PWcM8mXQfX32more:
https://goo.gl/maps/xNaKz1jCJNnthese are over pretty shallow water:
https://goo.gl/maps/8hmadAD72VP2Probably the ones Damon linked to:
https://goo.gl/maps/uqNrJjb3KD12These are really accessible:
https://goo.gl/maps/MUbHz3ghNZC2