To address the dam issue, you’ll need a systematic approach:
Assess the Damage: Determine the full extent of the erosion and structural compromise, possibly consulting a professional if safety is a concern.
Stop Further Damage: Use temporary measures like sandbags or a coffer dam to control water flow while you work.
Repair the Dam:
Your idea of using stone-filled steel crates (gabions) is solid for stabilizing the hole.
After placing the gabions, backfill with compacted soil, and apply a layer of bentonite clay to seal and reduce seepage.
Prevent Future Issues: Address muskrat activity by installing a protective barrier, such as mesh along the dam’s vulnerable areas, and maintain regular inspections.
Your equipment should be sufficient for this repair, but ensure stability and safety throughout the process. Consulting a local expert for your specific soil and dam conditions could also be valuable.
