the old city wall along the Pasig River to make room for the new city docks. The maximum amount of labor was obtained on this work, as it was possible to handle the prisoners within a smaller area than on other classes of work. In contrast to the above work may be mentioned the grading of D street. On this work the prisoners were stationed along the street for a distance of 300 meters, and it was found to be almost impossible to handle them to advantage. During the year 15,361 cubic meters of stone were removed from the old city wall and from the retaining walls around the moat for use in street work. ROAD ROLLERS. a The three road rollers have operated three hundred and fifteen days each during the year. Each roller has been overhauled at the city shops, the boiler tested, and the engine put in good condition. Value of unexpendable material issued to rollers during the year equals 391.56. The following statement shows the cost of operating the three rollers for the fiscal year ending June 30, 1905: The output of the quarry for the fiscal year of 1905 as compared with the fiscal year of 1904 has been increased from 33,045 cubic meters to 49,211 cubic meters. All the machinery has been inspected and put into good condition. One new No. 6 Gates crusher has been installed to replace the Blake and Austin crushers, which had become worn out. The two Gates crushers when working nine hours per day are able to crush approximately 400 cubic meters of stone. The cost of all unexpendable material issued to the quarry during the year, including the purchase and installation of the Gates crusher and all shafting, etc., connected with the same, amounted to P17,425.12. Owing to the shallow water in front of the bins, caused by the large amount of sediment washed in from the lake, it became necessary to build a new wall some 8 meters farther into the bay. The storage bins were moved out to this location, and by so doing sufficient depth of water has been obtained so that the stone can be loaded directly into the scows at all seasons of the year. The question of handling the large amount of waste encountered in getting out the stone for the crushers has become a very serious one. At the present time it is necessary to handle 2 tons of refuse for every ton of stone delivered at the crusher. It is proposed to remedy this condition by installing a pump and pumping the water from the lake directly into an 8-inch pipe. Connections will be made with this pipe so as to attach a 24-inch hose, and the water will be delivered at a pressure of 75 pounds per square inch. Sluiceways will be built to handle the refuse material washed out, and by this method it is thought that the cost of handling the stone will be reduced 50 per cent. During the year it will be necessary to install one extra boiler similar to those now in operation and also one donkey engine to handle the material from the lower incline. Owing to a lack of water in the Pasig River during the past year the cost of towing has been greatly increased. This fact has brought up the question as to whether the quarry should be opened across the bay in the vicinity of Mariveles, thus eliminating this extra cost for towing. With this fact in mind a number of trips have been made to various localities on the bay shore to see if it was possible to locate a quarry where the stone will be of equal or better quality than that obtained from the present quarry. The only quarry located where the stone was equal in quality to that obtained at the present quarry was in the center of Bataán Province, but the distance from the bay was so great as to make it out of the question owing to the cost of a Cost of operating per day equals 11.23. transporting the stone. A careful study was made of the Mariveles quarry, where the Atlantic, Gulf and Pacific Company have been getting out the stone for the break water. One hundred cubic meters of this stone was purchased and used on Calle Real (Ermita) as an experiment of the wearing qualities of this stone. A very close watch was kept on this roadway, and the rapidity with which it wore away proved without doubt that this stone was unfitted for road work. After looking into the matter very carefully this office has reached the conclusion that better results will be obtained by continuing to operate the present quarry. Should the Pasig River become as low during the next dry season as it did during the one just past, some arrangement can be made to obtain launches of less draft. The following table shows the force employed, cost of operation, and the output at the quarry for the year ending June 30, 1905: Labor Total cost of operating quarry for the fiscal year ending June 30, 1905.a Coal, 650 tons. Dynamite, 4 tons.. Oil, waste, belting, repairs Total 144, 774.90 8, 612.50 2,226.54 3,637.00 59,250.94 LAUNCHES. During the year the launches Washington and Jan have continued to tow the stone scows to and from the city quarry. The Washington has made 135 trips and the Jan 131 trips during the year, hauling a total of 52,394 cubic meters of material for street purposes. The Washington was put in dry dock in September, 1904, and recalked, recoppered, and general repairs made to her engines, at a cost of P1,792.70. General repairs have been made to the boiler and engine of the launch Jan during the year, at a cost of P 1,196.67. @Cost of crushing equals P1.20 per cubic meter. The city quarry is located on the island of Talim, Laguna de Bay, 27 miles distant from the Bridge of Spain. The following table shows the amount and class of material towed by the launches for the fiscal year ending June 30, 1905: Amount and class of material towed by the launches Washington and Jan. Total cost of operating the launches Washington and Jan for the fiscal year ending June 30, Cost of operating one launch, including repairs, equals P40.12 per day. Cost of towing equals 10.48 per cubic meter. SCOWS. The 24 scows now in use have been overhauled at the city shops during the year and put in good condition. Twenty-three of these scows have a capacity of 25 cubie meters and have been used for hauling broken stone from the quarry. The 3 flat scows, with a capacity of 60 cubic meters each, have been used in hauling sand dredged from the Pasig River. Labor Total cost of operating scows for the fiscal year ending June 30, 1905. Rope, oil, etc. Repairs.... Total cost of operating 24 stone scows per year 148, 798. 10 858. 29 11, 981. 04 61, 637. 43 Cost of labor on scows for handling material equals 1.17 per cubic meter. The cost of 1 cubic meter of crushed stone obtained at the city quarry and delivered at the Bridge of Spain is as follows: Per cubic meter. Towing..... Labor on scows and repairs Crushing Total cost of stone delivered in Manila, including wear and tear on PO. 48 1.17 1.20 a 2.85 a In figuring the cost of delivering broken stone, the actual expenses for repairs to launches, scows, and quarry during the year has been used. Such items as docking the launches and rebuilding the stone scows should be figured for a period of eighteen months, which would reduce the cost of delivering broken stone to 2.36 per cubic meter. SIDEWALKS AND CURBING. Ordinance No. 3, section No. 9, passed by the municipal board December 16, 1901, provides that the sidewalk shall be installed and maintained by the abutting owner. În accordance with this ordinance, 721 notices have been served for the installation or repair of sidewalks. In every instance where a curb could be installed the work of installing the same was performed by and at the expense of this office. A uniform specification for cement sidewalk has been prepared and printed in English and Spanish and a copy issued to each person performing sidewalk work. During the early part of the past fiscal year agreements were made with the owners on various streets whereby this office should install the cement sidewalks, at a price of 13.60 per square meter. The walks were installed at a profit to the city, but so much trouble and delay was experienced in getting the bills paid that this method was finally abandoned. At the present time there are several contractors who are performing this work, the same being subject to the inspection of the sidewalk inspector. The following cement curbs and sidewalks were installed by this office July 1, 1904, to July 1, 1905. During the year 1,879 permits have been issued for making excavation in streets, erecting stagings, and closing portions of sidewalks for work in connection with building operations. |