WWW Valve Insertions - Addendum 4.pdf

This is Addendum 4 to the Invitation to Bid issued by the Town of Windham, Connecticut, through the Windham Water Works for water distribution system valve insertion work. The addendum amends the scope of work to specify three valve insertion projects: an 8-inch valve insertion on asbestos concrete pipe near 478 Valley Street in Willimantic, a 6-inch valve insertion on cast iron pipe near 59 Bolivia Street in Willimantic, and a 12-inch valve insertion on cast iron pipe near 258 Mansfield Avenue in Willimantic. All work requires furnishing labor, materials, equipment, and supervision for completion of valve insertions into the live water distribution system. The addendum addresses bidder inquiries regarding pipe specifications and provides clarification on pipe outer diameters and class ratings. Bidders are required to sign, date, and submit this addendum with their bids; failure to do so will result in bids being considered incomplete.

The addendum provides technical specifications in response to prospective bidders' questions, noting that the 8-inch asbestos concrete pipe has an outer diameter of 9.60 inches and is believed to be Class 150 or Class 200 (though not confirmed), the 6-inch cast iron pipe has an outer diameter of 7.05 inches, and the 12-inch cast iron pipe has an outer diameter of 13.20 inches. No pricing information, set-asides, incumbent contractor data, or funding source details are included in this addendum document. The addendum serves as a mandatory requirement for bid submission and must accompany all bids submitted to Windham Water Works.