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An Innovative Rehabilitation Project at the Cobble Mountain Dam Outlet Works

机译:鹅卵石山坝出口工程的创新修复项目

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Construction of Springfield Water and Sewer Commission's (SWSC) Cobble Mountain Reservoir Dam, located in Granville, Massachusetts, began in 1929 and was completed in 1931. Since then, as part of the Little River Water Supply System, the reservoir has served as the primary drinking water source for the City of Springfield, Massachusetts, and its surrounding communities. In 2001, a rehabilitation project was planned for the diversion tunnel high-pressure outlet works facility, which included the replacement of two existing water-operated 42- by 30-inch Larner-Johnson needle valves. The project also included the rehabilitation of the two existing 40-inch rotary (ball) style guard valves.
机译:位于马萨诸塞州格兰维尔的斯普林菲尔德水和下水道委员会(SWSC)的鹅卵山水库大坝始于1929年,并于1931年完成。此后,作为Little River供水系统的一部分,水库一直是主要水库。马萨诸塞州斯普林菲尔德市及其周边社区的饮用水源。 2001年,计划对改道隧道高压出口工程设施进行一项修复项目,其中包括用30英寸的Larner-Johnson针阀替换两个现有的水上操作42针阀。该项目还包括修复两个现有的40英寸旋转(球)式防护阀。

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