When Does A Slope Need A Retaining Wall
When Does A Slope Need A Retaining Wall . The maximum slope for the soil you can safely go without a retaining wall is 35 degrees, especially if the soil is granular. Retaining walls are often found in places where extra support is needed to prevent the earth from moving downhill with erosion. At What Slope Do You Need A Retaining Wall? from www.cohesivehomes.com If the angle is steeper than 35 degrees, you need a retaining wall to keep the landscape in place. Will a retaining wall hold back. The walls must resist the lateral pressures generated by loose soils or, in some cases, water pressures.