8Power to deviate
In the construction of Work No. 1 the Company may deviate from the line or situation thereof shown on the deposited plan to the extent of the limit of deviation and may deviate vertically from the levels shown on the deposited section in the case of the outlet port to any extent upwards not exceeding 2 metres above the surface of the bed of the river at the time of construction but not otherwise and in the case of the works to such extent downwards as may be found necessary or convenient.