Anyone with a strong back can stack up a bunch of blocks and build a pretty retaining wall. But it takes skill and planning ...

♪♪ ♪♪ Jenn: Okay, so, we picked this wall because they are interlocking concrete blocks, and that's gonna create the retaining wall. Love the nice smooth appearance. Olivia: Yeah.

However, modern segmental retaining walls (SRWs) emerged in the late 20th century when engineers developed high-strength concrete blocks with interlocking features. The introduction of geosynthetic ...