The Great Lakes water levels are the highest in 17 years and are causing some erosion along Lake Michigan shoreline on the peninsula.  According to the U.S. Army Corps of Engineers, the lake is seven inches higher than one year ago and is only ten inches from the all-time high recorded in 1986.  In Southern Door County, Clay Banks Town Chair Mike Johnson says the township has been dealing with erosion that was washing out the road on South Lake Michigan Drive the past year.  He says they are monitoring the rip rock that was placed to protect the road periodically. Lake Michigan water levels are predicted to rise another four inches in the next month with the peak coming in July.