Interpretation #7018

Published July 03, 2012

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Original Request

Code Version
2010
Code
BUILDING
Code Description
Building
Chapter
18
Section
401.3 Drainage
Topic
Grading around foundation

Question

Is it not the intent of 401.3 to provide for drainage of water downward and away from the perimiter walls of a home, to prevent ponding of water and soggy lots within the first ten feet of the perimiter?

Answer Published 07/03/2012 at 5:15 PM

Yes. The lot is required to be graded; to drain surface
water away from foundation wall. For a monolithic
foundation, the thickened edge could be deemed as the
foundation wall. The grade is required to fall a minimum of
6 inches within the first 10 feet, except where space
prohibits drains or swales are required.

Commentary

None.