BACKUP_AOC_SOUTH_ARFF_ESTIMATE_OF_PROBABLE_COST_2025.11.24.pdf

This is an Estimate of Probable Cost document prepared by CMTA Engineering on November 20, 2025, for the Kenton County Airport Board's Backup Airport Operations Center (AOC) Construction project located at Cincinnati/Northern Kentucky International Airport's South ARFF facility in Hebron, Kentucky. The project encompasses selective demolition, wood framing for raised flooring systems, door and hardware installation, comprehensive interior finishes including suspended acoustic ceilings, carpet tile, paint, wall repairs, blinds and insulation, and extensive electrical infrastructure upgrades. The electrical scope includes a complete power distribution system with an 8 kVA UPS system, 75 kVA transformer, panelboard, disconnect switches, surge protection devices, lighting controls with occupancy sensors, isolated ground and quad receptacles, ground bars, and approximately 62 hundred linear feet of #12 copper THHN wire along with EMT conduit, fittings, cable tray, junction boxes, and pull boxes. The data infrastructure component specifies 23 hundred linear feet of Category 5e cabling with four data drops, and an arc flash study is included. A mandatory pre-bid meeting and site visit are scheduled for Thursday, February 26, 2026 at 1:00 pm at South ARFF Station #1, with written questions due by 11:59 pm on Monday, March 9, 2026 and answers posted by Thursday, March 12, 2026 at 11:59 pm. Sealed bids are due no later than 2:00 pm Eastern Time on Thursday, March 19, 2026, with award to be made within 120 calendar days of bid opening. The successful contractor must commence work within 10 days of the Notice to Proceed, achieve substantial completion within six months, and complete final closeout within 30 days of substantial completion.

The engineer's estimate of probable cost totals $211,864.73, calculated as follows: Division 02 Demolition ($5,000.00), Division 06 Wood and Composites ($10,250.00), Division 08 Doors ($1,000.00), Division 09 Finishes ($10,515.00), and Division 16 Electrical ($140,717.00), with a 10 percent contingency ($16,748.20) and overhead and profit at 15 percent ($27,634.53). The total appropriations request is $430,722.50, comprised of $289,222.50 for construction and $141,500.00 for equipment. Bidders must submit sealed bids without reference to the engineer's estimate. Performance and labor/material payment bonds equal to 100 percent of contract value are required from a surety rated at least "A" by Best Insurance Reports and authorized to do business in Kentucky, along with a proposal bond of not less than 5 percent of the total main bid amount. The contractor must maintain Commercial General Liability insurance of not less than $10,000,000 per occurrence, Automobile Liability insurance of not less than $10,000,000 per accident, Workers' Compensation insurance, and Builders Risk insurance for the full insurable value of work. Required contractor qualifications include a minimum three-year electrical contractor license, evidence that subcontractors have completed projects valued at 70 percent and 50 percent of their respective subcontract values, BICSI-certified Registered Communications Distribution Designers, and NICET-certified Level III or IV fire alarm technicians. Contractors must perform at least 25 percent of total contract costs with their own organization. The project is subject to disadvantaged business enterprise provisions, Buy American certification requirements, and liquidated damages for schedule delays, with a one-year warranty on all labor and materials from the date of final acceptance. Airport security badges cost $44.00 per badge, to be borne by the contractor.