Swales

Exterior · Lot Grading · printed page 340 (PDF page 341)

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Exterior – Grading Grading – Exterior Lot Grading

Text in the illustration

when the overall lot drainage is toward the house, swales can be used to direct surface water away from the foundation
water runoff
swale

Generated explanation

The illustration shows a house on a sloping lot represented by a contoured grid. Arrows indicate surface water running downhill toward the house from the higher ground behind it. Swales intercept this runoff and route it around both sides of the house toward lower ground. The diagram illustrates using graded drainage channels to direct surface water away from the foundation.

Components

lot grading drainage swales house foundation roof gutters downspouts downspout extensions

Materials

soil

Related illustrations

2070

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The illustration shows a house on a contoured site with shallow drainage swales located away from the building. Arrows indicate surface runoff flowing down the higher ground behind the house into the swales. Large arrows

1882

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· p. 339

The illustration shows a house on a sloping lot, with a gridded ground surface indicating the surrounding contours. Arrows show surface runoff moving downhill toward the house from higher ground behind it. Shallow draina