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Council approves $178,550 change order for interceptor lining after overflow, root removal work
Summary
Town council approved Change Order No. 1 to National Water Main for work on the East Nadig interceptor totaling $178,550. Councilors were told the work cured backyard overflows and removed roots; additional lateral reconnections may cost about $70,000.
The West Warwick Town Council on July 15 approved Change Order No. 1 to National Water Main in the amount of $178,550 to cover additional cleaning and lining work on the East Nadig interceptor.
Town staff described that crews bypassed a section of the interceptor to install a cured-in-place lining using a UV-cured sleeve instead of open excavation. During bypass and cleaning, crews encountered heavy root intrusion and localized failures; staff said removing roots and relining the pipe and several manholes stopped recurring backyard overflows at one property and reduced chronic seepage in the area.
Council members were told the interceptor run in question parallels Providence Street behind many properties and ties back into the system near Angelus. The public record included a staff estimate that the entire 4,000-linear-foot interceptor project is expected to cost about $1.2 million; the change order represents work needed to correct conditions discovered during cleaning.
Staff also told the council they found two laterals that had not been connected to the newer interceptor and that re-establishing those connections — a separate excavation and lateral work not included in the current change order — could cost about $70,000. The town plans to contract that work separately rather than through National Water Main, staff said, to avoid adding contractor overhead to the price.
Action: Council approved Change Order No. 1 to National Water Main for $178,550. Staff reported additional lateral reconnection work is likely and will be brought forward under a separate contract.
The council voiced brief thanks for the inspection program; staff noted earlier breaks on the line had previously cost the town several hundred thousand dollars and that routine inspection and lining work is meant to reduce larger emergency repairs.
