Under this item, the existing water main shall, if necessary, be lowered to such depth that the top of the pipe shall be three and one-half (3%) feet below the surface of the proposed roadway.

The work shall be done under the inspection and to the satisfaction of the Superintendent of Distribution of the City Water Works.

The price bid per lineal foot for lowering the main shall also include necessary excavation and refilling, recaulking of all joints, and all other work necessary or incidental to the lowering and readjustment of the water main and appurtenances.