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injected. Any loose concrete should be removed prior to patching with new material. Any exposed rebar should be treated with a corrosion remover and inhibitor prior to resurfacing. • A concrete sealant should be applied to all surfaces exposed to the elements. • After the repair work is done, photographs of the floors, ceilings, and walls, should be taken to document the physical state of the building. The photographs may prove very useful in the future, if and when future damage occurs. • The insulation board in the burn rooms should be replaced. Upon completion of the repair work, the fire training tower should receive a structure assessment every 5 years per the recommendations of the Structural Engineer and National Fire Protection Association (NFPA) standards. Until repairs are completed, a structure assessment should be conducted every 2 years. The project was identified to be completed as part of the Repair and Replacement Program, but after receiving a preliminary estimate for$230,000 for the repairs of the burn rooms, the project was added to the mid-term update of the Capital Improvement Program. In February 2021, the City hired BSK and Finn under an on-call design professional services agreement for $31,456 to develop project plans and specifications to publicly bid the project. In June 2021, the fire training tower was closed to training. A detailed inspection and mark-outs identifying the needed repairs were completed. The fire tower remains closed to preserve the markings that identify the areas of repair. The plans and specifications were completed in June 2021 and the project was advertised to request construction bids on July 5, 2021. Four pre-bid meetings were held for the project between July 21 and July 30. In accordance with the bid documents, attendance at one of the four pre-bid meetings was required for a contractor to submit a responsive and eligible bid. The pre-bid meetings were attended by seven contractors. Three addendums were issued, providing supplemental information as was requested by bidders at the pre-bid meetings. DISCUSSION The Fire Training Tower Repairs project will address the necessary repairs to the building and extend the useful life of the structure. The bid was broken down into two components: the first is for the necessary repairs to resume live fire trainings in the burn rooms (identified as the base bid) and the second component is to complete all the recommended maintenance of the structure (identified as the additive bid). Sealed bids for this project were opened on August 10, 2021. A total of four bids were received, ranging from a base bid of$344,050 to $534,108 and a base bid plus bid additive of$519,120 to $790,816. The low bid was approximately 17 percent higher than the Engineer's Estimate of$443,000. During the design, it was difficult to get estimates for the specialized fire tile work. The difference in the bids from the estimate is attributed to this challenge. Material testing, specialty inspection and structural Page 3 of 5