Possible answers:
*Locate the area around your retaining wall. This should be the area your retaining wall is digging into, so your digging instructions should be accurate..
*Drive the stakes into the earth at an upright position, holding the stakes down as you drive. You will secure the stakes once the stakes are driven in..
*Your local utilities office should perform this free of charge. If you live in the usa, you must make an 811 " digline " call and set up a time to have your property inspected to determine the location of underground utility pipes and cables before starting any digging project..
*Decide how you want your retaining wall to look. Have someone come over and guide you on how to go about your dig..Choose from options above and answer: What most naturally follows?

How to build a retaining wall
Plan and layout the site.
Plan where your retaining wall is going to be using stakes and string, leveling off to ensure an even height and using a tape measure to ensure an even length.
Contact your local utilities office to confirm that there are no pipes or cables in your digging zone.
Answer:
Your local utilities office should perform this free of charge. If you live in the usa, you must make an 811 " digline " call and set up a time to have your property inspected to determine the location of underground utility pipes and cables before starting any digging project.