Skip to main content

Initial Observation of Backfill and Collapse

0:00
0:32
13.1K views

At 0:00 in

Having this convo all the time. #retainingwall

What happens here

The video opens with a landscaper introducing a large, expensive retaining wall project (stated to be $300,000 and 8 months into construction) that is already exhibiting significant failures. He points out a section of the retaining wall where the earth behind it is exposed, revealing only black dirt as backfill. This indicates a lack of proper granular drainage material (like gravel) and geo-grid reinforcement, which are critical for retaining wall stability. He explicitly states that this section of the wall is already collapsing, emphasizing the poor quality of the construction.

Goal: Identify early signs of retaining wall structural failure due to improper backfill.

Tools and materials

  • Black Dirt — Improper backfill material behind the wall
  • Retaining Wall Blocks — Constructing the retaining wall