Runway 18L/36R Tunnel Rehabilitation & Safety Improvements

The Runway 18L/36R Tunnel Rehabilitation and Safety Improvements project, solicitation 26-045-ITB, is a comprehensive effort by the Kenton County Airport Board to restore the South Airfield Drive tunnel at the Cincinnati/Northern Kentucky International Airport. The project addresses critical structural deterioration, water infiltration, and outdated systems within the 1,250 linear foot reinforced concrete tunnel. The scope of work includes concrete slab, wall, and soffit repairs, waterproofing, and the replacement of expansion joints. Additionally, the project involves upgrading the electrical distribution, installing new LED lighting and controls, replacing ventilation exhaust fans and unit heaters, and enhancing fire protection, security, and technology systems. The overall goal is to ensure the tunnel remains operational for vehicular traffic while maintaining the structural integrity necessary to support air traffic on Runway 18L/36R. The contract is awarded to the lowest qualified bidder based on the summation of estimated quantities multiplied by unit bid prices. Bids were due by September 17, 2026, and must be submitted electronically. The project is subject to stringent federal and state regulations, including the Davis-Bacon Act for prevailing wages, Buy American requirements under 49 USC 50101, and ADA/ADAAG accessibility standards. Bidders are required to provide a 5% proposal bond and must submit extensive certifications regarding non-debarment, affirmative action, and tax delinquency. The total project cost is estimated at approximately 17 million dollars, with construction planned for early 2027 to accommodate long-lead equipment procurement and avoid holiday traffic disruptions. Quality control is the responsibility of the contractor, while quality assurance is managed by the owner and the Resident Project Representative.