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Gradients And Falls | Pavingexpert
Introduction: Most paving ¹ and drainage relies on fall to carry away the water to somewhere less troublesome. Fall may also be referred to as slope or, more correctly, gradient. By making one part of the pavement or drainage pipe higher than another, gravity can be relied upon to persuade the water in a preferred direction.
Setting Out - Working Lines And Levels - Pavingexpert.com
The drawing opposite shows that the part of the driveway nearest the house is going to be drained to the gullies at J and K, while the lower part of the drive is going to be drained towards the linear channel drain at the threshold with the public footpath. This leads to the creation of an imaginary 'change of fall' line between L and M, which explains the reason for the intermediate pin L on ...
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