This Best Practice has been developed to provide a summary of current practices for construction and operation of transportation facilities and working platforms that rely on floating ice for structural adequacy. The focus is on advice that provides effective overice operations while ensuring that a standard of care necessary to protect worker safety is the highest priority. The Best Practice covers the basic steps for planning, design, construction, operation and closure of an over-ice project. Source : http://employment.alberta.ca/documents/WHS/WHS-PUB_sh010.pdf