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Lawn Drainage Slope Requirements for Katy, Texas Yard

New Katy, TX home. 24x55 ft lawn with mid-lawn drains and deep trench across 55 ft width. Wants minimum slope guidelines balancing drainage and usability.

Slope Depends on Soil

Dense soil/clay/shallow hardpan: up to 10° slope to drain
Concrete: 2-3° sufficient
Improve permeability: rototill + sand/organic matter to reduce needed slope

Alternative: French Drains

Install French drains throughout yard to intercept water, pipe to low point or water feature. Enhances recreation usability while managing drainage.

David Ward (delayed due to family hospital situation)

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