Why Does My Yard Flood After Heavy Rain?
A yard that only floods in heavy rain is telling you something specific: the drainage system cannot handle the volume, or it has no working outlet.
When a yard handles ordinary rain but floods in a heavy storm, the problem is usually about volume or outlet — the system either cannot move enough water fast enough, or it is discharging to a point that itself is overwhelmed.
The outlet is overwhelmed
If your yard drain discharges to a ditch or a storm connection that is itself full during a heavy storm, the water has nowhere to go and backs up. This is common on flat, low-lying properties. A sump pump lifting water to a higher discharge point, or a larger outlet, may be needed.
The system is undersized
A single catch basin or a narrow drain line may handle light rain but not the volume of a storm. Upsizing the collection and the line, or adding a second collection point, increases the capacity.
There is no real system
Sometimes a yard floods in heavy rain because there is no drainage system at all — just soil that saturates and a low spot that collects. In that case, the fix is installing one: catch basins, French drains, and a discharge route engineered for the volume.
See our yard drainage and storm drainage pages for solutions.
Need this looked at?
If you recognise a problem described here on your own property, we can inspect and tell you what is actually going on.