Once you know what kicks you into nail-biting drive, you can try to find other ways to cope. Keep your hands or mouth busy. Find something to fiddle with -- a stress ball, a worry stone, or even a pen to click.
For simple interlocking blocks, the retaining wall cost would be approximately $15 to $30 per square foot. Therefore, for a 25-by-4-foot wall, the entire retaining wallâs cost would be anywhere from $1,500 to $3,000.
Length in Feet: 90. Built 90 feet length 4 ft high block retaining wall with grout and footings - a lot of concrete and rebar . Paid $6,000 for the wall itself, including drain pipe , plus about $3000 to dig a trench, remove extra dirt from the site, place gravel and backfill.