A ® cause the street to be watered, if it considers it necessary to do so for the public convenience.

Guarding and lighting when street vested in Board is opened or broken up, or when street is under construction, and speedy completion of work.—When~ ever any drain in, or the pavement or surface of any street vested in the Board is opened or broken up by the Board for the purpose of carrying on any work, or whenever the Board allows any stréet which it bas under construction to be used for public traffic, the Board shall cause the place to be fenced and guarded and to be sufficiently lighted during the night, and shall take proper precautions for guarding against accident by shoring up and protecting adjoining buildings ; and shall, with all convenient speed, complete the said work, fill in the ground, and repair the said drain, pavement or surface, and carry away the . rubbish occasioned thereby or complete the construction of the said street, as the case may be.