Stop in for a cup of coffee

Well in theory today is the day my two post lift delivers. I ordered it in November. But I also need to backfill ditches we dug this weekend for gutter drains and elec service. I will be glad to get house hot. Right now I just have heavy wire stretched across the ground from box to well house. Once house is hot I can run wire i have prepared from house to well house. I lost a whole week of progress last week to the instructors block I was teaching.
What are you doing for bury the downspouts? I would like to do this myself. How long of a run underground? what did you use?