What to Know Before You Dig
Always call 811 before you dig to have a professional come to your home and locate buried PUBLIC utility lines free of charge. No matter the size of a digging project, if you come into contact with a buried power line, you could be electrocuted or seriously injured.
Member-Owned Powerlines
Remember that utility power lines will be marked for free, up to your main meter. Underground powerlines from your main meter inward, however, are the responsibility of the member. Property owners need to call an electrician or a powerline locating company to have their private lines marked. A list of private powerline locators can be found at http://www.gopherstateonecall.org/resources/industry-directory
Check out the graphics below to see who owns what. Member-owned powerlines are marked in orange in the graphics. 
Underground to overhead example
Underground to meter pedestal to underground example
Underground to pole to underground example
Overhead to underground example
Overhead to overhead example
Overhead to meter on building example
Call Before You Dig 1-800-252-1166
If you are planning a digging project more than one foot in depth, it is YOUR responsibility to notify Gopher State One Call who will notify all parties that may have underground facilities in the area. In the past, you had to call the phone company, the power company, the gas company, the cable TV company, etc., to accomplish this. With Gopher State One Call, you just make one call,
1-800-252-1166 or requests can be made on-line at www.gopherstateonecall.org.
The Gopher State One Call Notification Center will take the responsibility of notifying all affected utilities within 48 hours of your call.
When you call, have the following information ready:
Who is doing the digging and their phone number?
Type of work being done?
For whom the work is being done?
Street address or township, section and quarter.