Specifications include, but are not limited to: The project builds upon the existing 4-level garage (grade plus 3 elevated levels). The foundation and structure were designed to accommodate this vertical expansion up to a 7-level garage (grade plus 6 elevated levels). Once complete, the 7-level facility will provide a total of 2,037 spaces. The proposed project includes the construction of three new elevated levels of parking above the existing roof level; extension of the existing stairs; two new passenger elevators; renovations to the interior of the passenger terminal building located on the ground level of the garage; and extension of the existing building systems. The new garage structure shall be precast concrete construction. Modifications to the existing stair cores shall be precast concrete, structural steel and glass storefront. The project will incorporate sustainable design elements to the maximum extent practical. The scope of work further includes general site restoration, wetlands mitigation, construction phasing and sequencing, architecture, pedestrian circulation/wayfinding, means of egress, revenue control, signage/graphics, stairs, elevators, ADA and code compliance, HVAC, plumbing, fire protection, electrical, lighting, power, security, solar PV, and other systems and facilities required by existing codes and regulations and necessary to achieve a complete functional facility. Detailed scope of work required under this package includes, but is not limited to the following: Demolition of existing roof level precast concrete segments to facilitate erection of new precast concrete segments for expansion levels. Capital Programs and Environmental Affairs Department Rev. 01/29/24 3 | Page Demolition of existing slab on grade at location of new elevator bank, excavation to existing spread footing, and waterproofing of new elevator bank sump pit. Erection of new precast concrete structural members on expansion levels including shear walls, spandrels, double tees, girder beams, columns, slabs, and walls. Modifications to existing roof level to accommodate extension of existing building MEPFP services to expansion levels. Installation of temporary staging to support precast concrete erection operation and maintain code-compliant operation of garage as directed by Massport. Installation of cast-in place topping slabs at stair and elevator towers. Sealing of all precast concrete members including expansion joints Installation of masonry MEPFP support rooms on several floors. Demolition of existing doors on Level 4 and installation of new doors on roof level of expansion floors.