Slope Failure and Mudslide Incident

What happens here

Approximately seven months after the 40-degree slope was implemented, the contractor's concerns became a reality. Nine inches of rain fell over three separate days, leading to a massive mudslide. The lack of vegetation to hold the soil and the steep angle caused the slope to peel away like an onion, depositing mud and debris into two neighbors' backyards. The customer then contacted the contractor, expressing regret and asking 'how did you let me do this?'

Goal: Document the failure of the 40-degree slope and its consequences.