The San Francisco call., 1898-07-12
PROPOSALS.

s office, Board of Supervisors, San Francisco, July F. 1898. In accordance with resolution No 1887 Fourth serieso of the au Board pa of Su in open session of the board on Monday after noon. July IS. 1s9s, to light with gas, and portions of the city and county. in districts or the entire city and county for period of two (2) years, from August l. 1898, as provided and hereinafter described.
 The gas lamps to be erected and maintained to exceed 1000 for which and for the conse- quent expense provision will be made therefor in the amount to be levied in the street light fund.
 The electric arc lights of 2Ooo candle power to be placed and maintained on Market street gregate fifty (5O in number, and p on Van Ness avenue, from Market street to Broad way. to be located alternately on each side or said street and avenue, on ornamental iron poles not exceeding 20 feet in height, the exact location of said electric lights to be reported to the board and the same approved prior to their erection.
 The, electric lights to be placed and main tained on Golden Gate avenue. from Market to Devisadero street; Folsom street. from Third to Twenty-sixth street: Kearny and Montgomery streets. from Market to Broad and Dupont. from Broadway to Greenwich street, and from Pacific to Union street Montgomery avenue, from Pacific to Chest nut street. Third and Fourth streets from Market to Townsend; Fifth street from Mar ket to Bryant street, and on Sixth street, from Market to Grammar street, to be arc
 
 pended from span wires over the center of each crossing and wherever poles are quired the location must first be reported and approved by this board prior to their erection. The arc electric lights now erected on loca- tions in. the outlying districts on masts poles forty feet in height of 2000 candle power each, numbering 63S. to be maintained or erected in the same locations unless changes be considered a portion of the 1000 electric lights herein provided for.
 The districts within which the streets are
 
 hereby described. as follows:
 District No. f-Beginning at the intersec- ton of Market and East streets, along and including Market to Ridley; along and includ~ ing Ridley to Mission; along and including Division to Channel; along and including Channel to the bay; along the bay line to District No. 2-Beglnning at the intersection of Market and East streets. along but not including Market to Ridley; along and in- and including Devisadero to the bay: along the bay line to the point of beginning at District No. 3-Beginnlng at the northerl, termination of Devisadero, along but not in- cluding Devisadero to Ridley: along and in- cluding Ridley to Buena Vista avenue; along and including Buena Vista avenue south of and including Stanyan to Fulton; along and including Fulton to the, ocean; along the ocean and bay line to the point of begin ming.
 District No. 4-Beginnng at the easterly
 
 including Channel to Division; along but not including Division to Thirteenth; along but not including Thirteenth to Ridley: along but not including Ridley to Buena Vista avenue: along but not including Buena Vista avenue to Frederick; along but not including Fred erick to H street; along and including H street to the ocean; along the line to the San Mateo County line; along the San line to point of beginning.
 Specifications: Gas-The gas to be furnish ed to be of standard quality and illumin- an- dies. said Illuminating power to be deter mined by tests made by the gas inspector burners as will obtain from the gas the greatest amount of light and practicable for rate of five cubic feet of gas per hour
 Lamp posts and lamps-The lamp posts to be used to be of the same material and not to be less in height than the lamp posts now in use, and to be erected and lighted at such location may be designated by the board. The number of lamp posts to be erected and maintained during the continuance of the contract shall not exceed 4s00 in all. and to be erected and maintained at or contiguous erected throughout the city and county, eN. cept the locations wherein the streets or DOT tions of streets to be lighted by cleo tricity and at such location as may be des. ignated by the board the board to have tn. right to change the location of the same from time to time upon payment of the actual cost of labor and material in making said changes removals When lamps are or dered to be erected in certain sections of the city, where no mains are laid then the mains
  which the lighting of said sections of the city shall be effected, but in no event shall more lights be erected than be paid for out of the fund provided for street lighting during the fiscal year.
 now In use, or such as may be approved by the board. and the burner to be used in the lamps in lighting the public streets to con slst of single burner of the same size now used in the main thoroughfares. The burners of the various lamps to average a consumption of not less than five cubic feet per hour.
 The lamp posts, lamps, service pipes mains and all appurtenances incidental and neces sary to complete and equip the lamps ready for lighting to be furnished by the successful bidders. who shall erect. maintain and keep the same in proper condition and repair.
 Lighting lamps-The last lamp on each lamp lighters beat to be lighted one hour afte, before sunrise except that during the night of full moon, the night preceding and the Specifications: Electric lgh.s-The poles. wires. conductors. lamps. carbon electrodes and each and every appliance, article or ap paratus which may be necessary for electric lighting to be furnished and erected and kept in good order and condition by the sue The wires and conductors to be thoroughly insulated and placed in such locations and in ing tempered with or handled by any unau- thorized person or persons; 1t being distinct ly understood that the city and county. shall not be responsible, but must be held harm less against any claim for damages for any injury accident which may be occasoned.
  claim for damages by reason of any in- fringement of any patent right in the use of the lamps, machinery appliances con- nected with the said electric light. The said masts to be erected and maintain ed at or contiguous to the present locations of the masts erected throughout the city and county, with the distinct understanding that the board reserves the right to change the locations of and designate the character and power of the electric lights and the height of the mast to be used at any particular To- l cation during the continuance of the con- tract upon the payment of the actual cost of labor and materials in making said changes removals. The electric lights to be provided are as follows: g Six hundred and thrty-eght masts not | exceeding 40 feet high, 2000 candle power arc l lights: 50 poles not exceeding 25 feet in l height on Market street from the ferries to | Valencia street; 22 poles not exceeding g feet | street to Broadway; 263 lights suspended over | the center of streets herein designated. to be 1 hereafter apportioned or erected at such other | locations may be designated by this board | In case any additional lights are needed | the same to be erected at such locations as | may be determined by the committee on | street lights, under the direction of the board | and shall be furnished when required during | the continuance of the contract, but in no | event shall more lights be erected than can | be paid for out of the fund provided for | street lighting during the fiscal year. The lamps to be lighted during the entire | night from one hour after sunset until one | half hour before sunrise; except that during | the night of full moon, the night preceding and the night following. no lamps shall be ! lighted