JOHNSTON, Iowa - Just as the lake level reached normal conservation pool, recent rain has caused Saylorville Lake water levels to rise. Due to forecasted water elevations, the U.S. Army Corps of Engineers have closed the following areas: Cherry Glen Lower Boat Ramp, Oak Grove Beach Access, NW Jester Park Drive and Control Tower Road. These areas will be closed until lake levels subside and they can be cleaned up and brought back into service. Check current boat ramp availability by calling 515-509-2015, then 30#.