Drainage Guidelines - Foundation Performance Association
Drainage Guidelines - Foundation Performance Association
Drainage Guidelines - Foundation Performance Association
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DRAINAGE – COLLECTION AND MANAGEMENT<br />
French Drains – Planning<br />
FPA-SC-17 Presentation 14 March 2012<br />
• First, check for the presence of free water under the soil<br />
surface, presence of free water at surface depressions, use<br />
plumbers probe, dig posthole and monitor for water.<br />
• Plan layout, avoid near foundation, select disposal method,<br />
can use dry well.<br />
• Discussion of depth of collection section.<br />
• Areas with tree roots and not requiring drainage should<br />
have non-perforated pipe.<br />
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