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  NASDI, LLC. - Featured Projects  
             
             
  Boston Garden

"The demolition of the historic old arena presented some significant challenges for NADC member North American Site Developers, Inc. from nearby Allston, MA.  The distance between the new wall of the Fleet Center and Boston Garden's old one was less than 14 inches"  - Engineering News Record

 

The new Fleet center, Boston & Maine Railroad, a commuter rail terminal and an elevated MBTA line surrounded the site. A tight schedule, limited workspace and the need to provide continuous safety for pedestrians and traffic made the Boston Garden project a strategic challenge. In addition, NASDI, LLC. was responsible for storm water and other drainage and runoff during the execution of the project.  

The stadium portion of the building was torn down bay-by-bay, utilizing shear-equipped massive excavators to clear a path through the building, allowing the cranes to pickup and lower the trusses.

Smaller excavators with grapples were set on the top floor to concentrate on dismantling and demolition of the remainder of the building.

 

Each section of the stadium’s seven roof-framing trusses included gusset plates and two supporting columns, weighing approximately 35 tons per section. Two 250-ton cranes held each truss stable, while NASDI, LLC. workers in approved man-lift equipment diagonally torch-cut the supports. Cut sections were lowered to floor level, cut into smaller pieces and transported by trailer trucks to a recycling center.
 
 

Walls were removed inward, and then floors were jack hammered and hoe rammed, and moved downward. Rubble was relocated to the east end, separated, loaded and transported for proper disposal. Remaining structural steel framing was cut and removed in a descending order.

All work utilized Boston Police Department details using NASDI, LLC.-supplied two-way radios to coordinate and communicate for public safety. The project was completed without incident to the public, and operation of the Fleet Center continued without interruption.

 

  Columbia Point   Landmark Center  
     
         
  The Columbia Point project consisted of the 160-acre urban Harbor Point housing development, which contained a total of 420 units. Sixteen partial demolitions were required, along with complete demolitions, hazardous materials remediation and renovation of another 17 three to seven story buildings. This project was sponsored by the Columbia Point Housing Development, and was completed in only 18 months.   Together with Suffolk Construction Company, NASDI, LLC. was contracted to provide complete interior demolition on the Sears Roebuck Catalogue Warehouse Center, which totaled over 1 million square feet of building space. The work included sawcutting and removal of reinforced concrete floors and columns and selective removal of all mechanical and electrical systems for reuse, salvage and/or disposal. The project made way for development of a new multiplex and was completed ahead of schedule.  
         
  Rapid Service Press   Borden Chemical  
     
         
  This seven-story demolition and remediation project included 70,000 square feet of masonry and reinforced concrete. To comply with safety and conservation commission requirements, an intricate web of scaffolding and nets was rigged to ensure that debris would not fall onto the expressway on the west side, the Broadway Bridge to the north or into the Fort Point Channel to the east. This is one of the several projects NASDI, LLC. completed for the $7 billion Central Artery Tunnel Project.   This decommissioning project consisted of total demolition of 30 manufacturing facilities, four towers and a number of tank farms. The yearlong project included asbestos abatement, waste disposal and removal of retired facilities from operating, live units. Prior to mobilization, a complete operational plan outlined the removal of hazardous waste materials, an investment recovery program, structural demolition permitting and a health and safety plan.  
         
  Quincy Fore River Ship Yard   Pilgrim Management Building  
     
         
  NASDI, LLC's comprehensive plan for asbestos removal and demolition of 40 acres of concrete warehouses minimized cost and environmental liability to the client. Because of concurrent redevelopment activity, an abatement plan was devised to protect the health and safety of the additional workers on the site. The 1920 Hammer Head Crane was strategically brought down without damage to the supporting pier. This complex project was completed with no lost hours logged due to injuries.   This 100-year-old-building, located on Boston’s famous Boylston Street, was an integral part of the neighborhood’s historic image. The demolition and asbestos remediation project required that the nine-story, street-facing granite façade retain its architectural integrity. The Quality Assurance section of the specifications required that NASDI, LLC. employ only workers with extensive experience in selective demolition for the structure and utility scope of the work.  
         
         
         

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