Tool
Manure storage sizing
Approximate slurry lagoon volume based on herd size, climate, and rainfall.
Inputs
e.g. 0.8 = 800 mm/year
Leave blank for climate default
Recommended lagoon
Conservative starting point. Verify with a licensed engineer + your nutrient management plan.
Storage months
9 months (274 days)
Slurry volume
3,830 m³
Rainfall add-on
0 m³
Total volume
3,830 m³
Suggested depth (with 1 m freeboard)
4 m
Suggested square side
~35.7 × 35.7 m
⚠️ This sizes the storage volume only — it does not address the nutrient-management plan, application schedule, regulatory permits, or runoff buffers. Those are separate engineering and compliance exercises.
📚 See the article: Manure storage: how big and how to choose.