Vault 12 and South ARFF Generator Upgrades

The Kenton County Airport Board is requesting proposals for Vault 12 and South ARFF Generator Upgrades at Cincinnati/Northern Kentucky International Airport under ITB #26-048-ITB, with proposals due October 29, 2026 at 2:00 pm and a mandatory pre-proposal meeting and site visit on October 8, 2026 at 10:00 am. Davis-Bacon Act prevailing wage rates apply, with wage determination KY20260044 establishing base and fringe rates across 39 classified trades, plus paid sick leave and minimum wage compliance requirements through December 31, 2026.

The scope encompasses replacement of diesel generator sets and associated automated transfer switches at two airport campus locations: South ARFF will receive a new in-kind emergency generator with belly fuel tank to replace a legacy generator and underground storage tank; Vault 12 will have two legacy generators and a UST replaced with one emergency generator and belly fuel tank. Vault 12 will also receive HVAC equipment upgrades. The Vault 12 generator is rated 625 kVA/500 kW; South ARFF is rated 150 kW. All work must comply with 2018 Kentucky Building Code, 2015 International Mechanical Code, 2023 National Electrical Code, and seismic restraint requirements. The contractor must maintain partial owner occupancy during construction, proceed without interrupting airport operations, obtain the local building permit, and provide a comprehensive Gantt-chart schedule within 30 days of Notice of Award. All equipment and materials carry one-year warranties from substantial completion.

The contractor must submit a performance bond and labor and material payment bond, each equal to 100 percent of the contract amount, from a surety rated at least "A" and authorized to conduct business in Kentucky. A proposal bond of not less than 5 percent of the aggregate bid amount is required. The contract is cost-reimbursement with an amount not to exceed a sum to be determined in the executed agreement. Work must commence within 10 days of Notice to Proceed. Mobilization costs are limited to 10 percent of total project cost. Kentucky resident status certification and a Subcontractor List are required. Questions are due October 15, 2026 at 11:59 pm; answers will be posted by October 22, 2026. Award will be made to the lowest qualified bidder within 120 calendar days of bid opening. Bids are non-withdrawable for 120 days after opening.