Addendum 3 document.pdf

This is Addendum 3 to the Invitation to Bid issued by the South Dakota Department of the Military for the Replace Boilers-Sioux Falls Armory project (CFMO# 466446). The addendum modifies the original project manual and takes precedence over conflicting items. The project scope encompasses replacement of three boilers and seven pumps with new equipment, reworking of boiler-room piping, limited hallway piping to support modernized zoning, and installation of new intake, exhaust, variable frequency drive (VFD), and related mechanical systems at the Sioux Falls Armory located at 801 West National Guard Road, Sioux Falls, South Dakota. An optional pre-bid meeting is scheduled for August 26, 2026 at 9:00 a.m. CT at the armory's front entrance. Bids are due electronically on September 3, 2026 at 2:00 p.m. CT. The existing boiler system will remain operational until construction begins in Spring 2027, with substantial completion targeted for October 1, 2027. Bidders must acknowledge receipt of the addendum in their submission.

The primary purpose of Addendum 3 is to correct the pre-bid meeting date from the original Invitation to Bid, with the updated section 00 00 02 providing accurate meeting information. Bid security of 5% of the base bid plus all add alternates is required for bids exceeding $100,000, submitted as a certified check, cashier's check, draft, or 10% bid bond issued by a surety authorized in South Dakota, and must be pre-mailed to the South Dakota Department of the Military, 2823 West Main Street, Rapid City, before bid opening. Plans and specifications are available from West Plains Engineering (Stuart Oster, PE, 605-306-8116, Stuart.Oster@WestPlainsEngineering.com) and are on file for viewing at the Construction and Facilities Management Office. Questions should be directed to Project Manager Kyle Roe at 605-381-4093 or kyle.roe@state.sd.us.