The Brookhaven National Laboratory requires a contractor to demolish and fully replace its existing Main Gate Entrance (Building 680) to modernize site access and security. The project includes all labor, materials, and services for comprehensive site work, from demolition through final construction and commissioning. The contractor will be provided with two pre-procured security booths as Government Furnished Equipment, which they must install and connect. The work must be performed in phases to maintain continuous site security at the Brookhaven National Laboratory location. A formal solicitation with detailed requirements will be issued and posted on SAM.gov at a later date.