Proper retaining wall drainage can be the difference between a sturdy wall and one that leans. Learn how to prevent and ...

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 ...

Almost 8 miles long, seepage wall to keep water in Everglades National Park while protecting neighbo 02:17. MIAMI - It looks like a regular gravel road on top of a levy, but underneath the stone ...