The scope of work of the Base Bid includes improvements to the Minuteman Bikeway crossing at Lake Street and the intersection of Lake Street at Brooks Avenue, both in the Town of Arlington, Massachusetts. At the Minuteman Bikeway crossing at Lake Street, the project includes installing a new traffic signal, installing empty conduit and pull boxes for the potential lighting improvements to be included as part of Add Alternate #1, realigning the Bikeway approaches to provide a perpendicular crossing, constructing cement concrete sidewalk areas for pedestrians along the Bikeway, constructing cement concrete wheelchair ramps, pavement milling and overlay along Lake Street. Utility improvements include replacing two catch basins and electrical service for the traffic signal systems.