In 2012, the Dufresne Group prepared a Water System Evaluation Report for the Village of Bellows Falls, Vermont. In the report, a 6,600-foot section of 10-inch asbestos cement (AC) water main along Route 5 in the Town of Rockingham, Vermont was identified as a high priority for replacement due to concerns over the structural integrity of the AC pipe, inadequate fire flows in the North End Pressure Zone and high headloss along sections of the AC pipe. This 10-inch transmission main was also the primary pipeline providing potable water from the main pressure zone to the north end pressure zone of the distribution system.
Alternatives were evaluated for the replacement of the existing AC water main, including open trench construction with various alignment alternatives, pipe lining and pipe bursting. The project constraints included working within the state right-of- way along a heavily traveled trucking route, conflicts with other utilities and a shallow road shoulder ledge along a significant length of the project area.
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