The San Francisco call., 1898-04-07

shall have charge, superintendence and control, under such ordinances as may from time to time be adopted by the Supervisors:
 l. Of all public ways, streets, ave- nues. lanes, alleys. places. courts. roads, highways and boulevards now opened or which may hereafter be opened in the City and County; of the manner of their use; and of all work done upon, over or under the same; and herein particularly the Board shall have exclusive authority to prescribe rules and grant permits, in conformity with the ordinances of the Supervisors, for the moving of buildings through the streets thereof, and the building or placing of cellars or vaults under the streets or sidewalks, and of temporary fences enclosing areas upon the side walks; the laying down and construc- tion of railroad tracks in the streets: the erection of telegraph and telephone poles, and poles for electric lighting, and the laying under the surface of the streets or sidewalks of telegraph or tele- phone wires, and wires for electric light ing and power; the construction of drains and sewers; the laying down and taking up of gas, steam and water pipes, pneumatic or other tubes or pipes, ana sewers and drains, and determining the location thereof: the using of the
 
 deposit of building material in front Of a building during it's construction or repair, or for any purpose other than such as ordinarily and properly belongs to the public from the dedication there of to public use; and without such per- mission in writing from said Board no person shall do any of the acts in this section enumerated; but nothing in this section shall be so construed as to give said Board the power to gran. permits for or allow the permanent en- croachment upon any sidewalk of anT structure.
 g. Of all sewers, drains and cess pools, and of the work pertainins thereto or to the drainage of the City and County;
 B. Of the cleaning and sprinkling of all public streets, avenues, alleys. places, courts, roads, highways and boulevards, and the lighting of tho same and the lighting of the parks squares and other public places ana public buildings;
 4. Of the cleaning of all the public buildings of the City and County ana of the appointment of such janitors ana employees as are needed for such pur- pose;
 D. Of the supervision of any and all building construction in the City and County;
 G. Of the construction of any and all public buildings and structures, under plans duly approved by the various de- partments, including all school houses and re-department buildings, and the repair and maintenance of any and all buildings and structures owned by the City and County;
 z. Of any and all wires and conduits, the collection and disposal of street refuse, garbage and sewage, and the designing, construction and mainten- ance of the sewerage and drainage syS- tems of the City and County;
 8. Of any and all public utilities owned, controlled or operated by the City and County, or which may here after be so owned. controlled or ope- rated.
 g. When at any time any person, company or corporation desires to have opened or torn up the roadway of any street, lane, alley, place or court Tn the City and County for any purpose, a written application shall be made to the Board of Public Works for permis- sion to do so. The Board shall there upon make an estimate O. the expense of opening or tearing up such street, lane, alley, place or court and of re- storing the same to as good condition as it was in before said opening tear ing up. Such person, company or cor poration must thereupon deposit the amount of such estimate with the Board of Public Works which shall thereupon pay the same into the Gene ral Fund.
 The Board shall thereupon proceed to open or tear ur sad street, lane, alley, place or court as in said application re- Quested, and shall ct the proper time restore such street, lane, alley, place or court to as good a condition as it was in before said opening or tearing up Contracts for the doing of sucn work by the Board may be let by it in the manner provided in this Chapter, or the work may, at the option of the Board, be done py days labor.
 If the expense of such work has been more than the aforesaid estimate, the person, company or corporation shall be indebted to the City and County for such balance; and the same shall con- stitute a lien upon the property of such person, company or corporation. Said lien shall remain in force until such balance has been paid, or until the lien shall be legally discharged Said lien may be enforced by suit cordance with the provisions of the Code of Civil Procedure of the State of California If the expense of such work has been lt S than the aforesaid estimate, then the surplus shall con- stitute claim in favor of such person, company or corporation, against the City and County, and as such shall be presented, approved and paid as other claims.
 Sec. 10. All examinations, plans and estimates required by the Supervisors in connection with any public improve ments or utilities, shall be made by the Board of Public Works and it shall, when requested to do so, furnish infor- nation and data for the use of the Su- pervisors.
 Sec. Il. Said Board shall appoint a Civil Engineer of not less than five years practical experience as such, who shall be designated the City En- gineer. He shall hold his office at the pleasure of the Board.
 He shall perform all the civil engin- eering and surveying required in the prosecution of the public works and improvements done under the direction and supervision of said Board, and shall certify to the progress and com pletion of the same, and do such other surveying or other work as he may be directed to do by said Board or by the Supervisors He shall possess the same power in the City and County in mak- ing surveys, plats and certificates as is or may from time to time be given by law to City Engineers and to Coun- ty Surveyors, and his official acts and all nlafS s11rvovS and certificates ma da