Maximum slopes

Exterior · Lot Grading · printed page 339 (PDF page 340)

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Maximum Slopes Exterior – Grading Grading – Exterior Lot Grading

Text in the illustration

watch for cracks in side walls due to soil movement
bent tree trunks can indicate soil slippage
vegetation helps reduce erosion from rain runoff and improves the stability of the top soil layer
water at the bottom of the slope can erode the soil, leading to increased slope instability
water
1
2
the maximum slope for a lot should be 1 in 2

Generated explanation

The illustration shows a cross-section of a sloping lot with a house on level ground at the top and water at the toe of the slope. A slope triangle identifies a maximum lot slope of one vertical to two horizontal. Shrubs illustrate vegetation's role in reducing runoff erosion and stabilizing the topsoil. A bent tree trunk is identified as a possible sign of soil slippage, and an arrow at the house advises checking side walls for cracks caused by soil movement. Water at the bottom is identified as a potential source of soil erosion and increased slope instability.