312

KOADS.

but very little cutting, therefore rendering it necessary for ground to be obtainedfrom some other source, with which to form the embankment. In order to produceas much cutting as possible, the line should be kept at the same level as before until

Fig. 4.

it becomes necessary to rise to attain the level of the existing road at h : if an inclina-tion of 1 in 50 be given to this last part of the road, the distance at which the rise