弗吉尼亚州亚历山大市的消防和水服务。

弗吉尼亚州亚历山大市的消防和水服务。

国家消防承销商委员会的工程师最近对弗吉尼亚州亚历山大市的消防和水服务进行了彻底的调查,这是一个人口18,000人的城市。该报告说,亚历山大水公司(Alexandria Water Company)向亚历山大(Alexandria)和附近的几个小镇提供了供水,沃尔特·罗伯茨(Walter Roberts)担任总裁。供应量取自Cameron在城市以西约三英里处的转移工程中,并由一条运河运送到远离城市范围一英里的泵站。运河具有足够的容量,可用作用作泵的水上轮的头部赛车,并在毗邻车站的磨坊中的水轮上操作。磨坊只能占用剩余的水,并且在此检查时没有运行。水棚的排水区域约为33平方英里;在1911年夏季,迫在眉睫的水短缺。现在正在建造一个6亿加仑的蓄水池,建造在城市西北约六英里处的水棚上。它将是砖石,溢洪道在海拔205;排水区,约14平方英里。 The pumping station contains a Smith-Vaile duplex steam pumn, designed for a capacity of 1,500,000 gallons a day, but at times operated at a capacity of about 2,000,000 gallons a day; an 860,000-gallon Morris single-cylinder, horizontal pump, installed in 1851 and operated by the overshot water wheel, with a single-cylinder steam engine for emergency operation, and a 100-horsepower, tubular boiler. Suction is taken under about 10 feet head directly from the head-race; discharge from both pumps is to two connected and gated force mains, an 8-inch and a 12-inch, which extend about 1,200 feet to two distributing reservoirs. Station at about elevation 8, with mean low water in the Potomac river as datum. Coal is supplied under contract and hauled by teams; station operated continuously in tw'O shifts of one man each. Station is a small area stone and brick one-story building, divided into pump and boiler rooms, with unprotected opening between; upper six feet and root of pump room of wood; roof covered with tin; floors brick; plastered ceiling in pumping room. Brick stack adjoining boiler room. Exposed by two-story, frame mill, 30 feet distant. Chemical extinguisher in pump room; double hydrant with 400 feet of 2½-⅛⅛ hose in hose house 60 feet distant; 35 pounds pressure on main; closest fire station about one mile. The distributing reservoirs arc located on a hill one mile west of the center of the city; built in two basins, one of 2,500,000 gallons’ capacity and one of 14,000,000 gallons’ capacity, connected by two pipes about six feet below top. Elevation of top about 96.5; water level about 95; bottom at elevation 81. Inlet pipes are well arranged; outlet pipes extend from each reservoir and connect into two supply lines, a 10-inch and a 20-inch, poorly arranged at the reservoir, as a single break could put both out of service. Reservoirs have earth embankments paved on inside; condition good.

消费 - 没有记录保留消费;从柱塞流离失所来看,据估计,消费每天约为1,200,000加仑或人均70加仑。大约有3,700个服务,直径一半至四英寸,包括城市以外的服务;很少有计量。

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