Are you considering installing a paver ... drain costs less than building a retaining wall, with an average price tag of $5,000 or so. This type of drain is made up of a gravel-filled trench ...

The trench should be between 4 and 6 inches deep and a few inches wider than the brick pavers you're using. While it doesn't need to be perfectly level, try to flatten and tamp the trench bottom a ...