BSS: Minimum Grade Elevation Date and Time Tuesday Feb 16, 2016 Location 6904 S Lyncrest PlSioux Falls, SD 57108 BSS: Minimum Grade Elevation Description BSS: Minimum Grade Elevation - Tuesday - Feb 16th 11:30 - 1:00 at the HBASE OfficeLunch provided. Cost: $10 for members. $20 for non-members Share × Print Email Add to Calendar Facebook Twitter LinkedIn Tell a Friend × Select Calendar Type × Google Yahoo iCal (Outlook, Apple, or other)