(Chanhassen, MN)  --  Before the end of the this week, and without the aid of any rain, the Minnesota River could rise another ten-feet south of the Twin Cities.  The high water is causing the closure of highways and roads in low-lying suburbs.  The Minnesota River at Henderson in Sibley County is predicted to reach a record level this afternoon -- nearly eight-feet over flood stage -- then begin dropping.  Meanwhile, the Mississippi River is expected to top out at nearly four-feet over flood stage by Friday in St. Paul.