POLICE STATION HOUSE No. 8.-This building, situated on Commercial and Battery streets, was raised and the first story rearranged. To prevent dampness and the flow of tidewater into the basement, it was found necessary to raise the building, and fill up the basement about four feet. The alteration of the first story consisted in changing the principal entrance, from Commercial street to Battery street, on the side; also the changing of the captain's room and property-room. Plans by George A. Clough, City Architect. Contractor, John Cavanagh. Cost of raising and altering, $9,869.49. STABLE FOR PAVING DEPARTMENT, WEST ROXBURY DISTRICT. This stable is located on city land, Child street, West Roxbury, accommodates the horses of the Paving Department in that district. It is built of wood, one story, and a French roof in front, measuring 40 feet by 50 feet deep, and supported by a brick and stone foundation. On one side and across the rear is a shed roof for protection of carts, etc. The first floor has a carriage-room, 29 feet by 18 feet, an office, 14 feet by 10 feet, and eleven stalls. The roof story contains a man's room, and the balance devoted to hay-loft. Plans by George A. Clough, City Architect. Contractor, Jarvis W. Dean. Cost of building, $4,995.09. STABLE FOR HEALTH DEPARTMENT, CHARLESTOWN DISTRICT. This stable is on Canal street, Charlestown District, on land belonging to the city, and is constructed of wood, 36 feet frontage by 71 feet depth, is two stories high, and is supported by a pile foundation. The first story contains twenty-one stalls, and an office, a staircase, and three entrances. The second story is fitted with a man's room, and meal and grain chests; the balance is devoted to a hayloft. Plans by George A. Clough, City Architect. Contractor, Samuel Y. Chase. Cost of building, including fitting and furnishing, $5,083.07. WARD-ROOM BUILDING, SOUTH BOSTON. An addition to the ward-room building at the corner of Fourth and Dorchester streets, South Boston, for the accommodation of the Municipal District Court, has been made. The addition is two stories high above the basement, and measures on the ground 27 ft. 6 in. by 18 ft. 10 in.; is built of brick trimmed with granite, in style conforming to the old structure. the basement there are four cells, with a rear entrance for prisoners. The first floor has a clerk's office and a judge's private room. The second story has two jury rooms, open In ing on to the staircase of the old building. Plans by George A. Clough, City Architect. Contractor, William H. Sayward. Cost of making the addition was $5,132.63. PUBLIC WORKS. COCHITUATE WATER WORKS. - Lake Cochituate and Sudbury river. The water in Lake Cochituate, which during the early part of the year 1875 reached the lowest point since the works were built, as stated in last year's report, gradually rose under the constant accessions from the Sudbury river and its own water-shed, until on the 11th of May, 1875, it stood at high-water mark. The quantity received from the river previously to this date was 1,506,700,000 gallons, and the amount received during the year 1875 was equal to a supply of 7,000,000 gallons per day. From May 11th to Sept. 1st, 1875, the water in the lake stood at or near high-water mark. From Sept. 1st it gradually fell till Jan. 1st, 1876, when it stood at 9 feet 1⁄2 inch. The water turned into the lake from Sudbury river during January and February of this year, and the very severe storms which occurred in March, brought the surface to high-water mark again on March 26th, 1876, and since that date there has been a large waste over the outlet dam. 1 2 The works necessary for the introduction of the Sudburyriver water are progressing rapidly, and it is confidently anticipated that the close of next year will see them completed. The conduit from Farm pond to Chestnut Hill reservoir, about 15 miles long, was divided into 20 sections, each section being the basis of a contract. Section 20, which includes the Beacon-street tunnel, was put under contract in August, 1873, and was completed last December. Sections 2 to 19, with the exception of 10 and 15, were advertised for proposals during the months of May and June, and most of the contracts were executed in the latter month. The contract for Section 13, which was readvertised, was executed Sept. 17th, and those for Sections 16 and 19 on July 9th. Sections 10 and 15, which are stone-arch bridges, the former crossing the Waban valley and the latter Charles river, were advertised for proposals in November, and the contracts were executed, the former Dec. 30th, the latter Nov. 29th. On Oct. 21st, 1875, a contract for building a road in Framingham was executed. This road was laid out by the County Commissioners, and was made necessary by the proposed flowing of a portion of the old county road leading from Framingham to Southboro. On Oct. 30th, 1875, an order of the City Council was approved, authorizing the Water Board to build Section 1 and the foundations to Dams Nos. 1, 2 and 3 by day labor. Section 1 crosses the Boston and Albany Railroad at Framingham; the piles for supporting the tracks over the trench for the conduit have been driven. The estimated value of the contracts already let is $2,400,000; the value of the work done and materials delivered April 30, 1876, was $794,930.62, including the work done on Section 1. 12,139 feet of conduit are finished, and 5,902 feet of tunnel are excavated. Consumption. During the latter part of the year, East Boston (till Dec. 2d) and portions of the West Roxbury and Brighton Divisions were supplied from the Cochituate works, these being in addition to the divisions of the city supplied last year. The average daily consumption from the Cochituate works for each month of the year has been as follows: The average daily consumption for the year has been 19,267,700 gallons. Distributing System. The principal streets of Jamaica Plain and Brighton Districts have been piped during the past, year, about 19 miles of pipes having been laid and 240 hydrants set during last season, at a total cost to April 30, 1876, of $294,678.51. Pipes for the supply of a portion of the high-service districts of these sections are now being laid and temporary pumping works are being built in the Brighton District to give an adequate head for this service. West Roxbury and Jamaica Plain high-service will be supplied from the pumping works in Roxbury. The following tables will show the lengths and sizes of pipes laid, etc. : |