Size the trench so there's enough room for the retaining wall block and at least 8 in. of space behind it. Excavate deep enough to completely bury at least one full course, including space for 6 to 8 ...

The city of Minneapolis is now facing a possible $90,000 repair bill to fix a retaining wall it's been trying to get the homeowner to fix for five years. The Wednesday ruling by Hennepin County ...