Construction site

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Description: Construction site generics. Pile driver makes repeated loud pounding noise. Backhoe with giant swiveling armature scoops dirt and releases it into dump truck. Equipment from J.F. White contracting company. Striped safety barrier with amber flashing light. Hard hat workers on scaffolding. Project is Blodgett pool building at athletic center across from Harvard Business School. Port-O-San outhouse. 'Hazardous Area' and 'Restricted Access: Hard Hats Required' signs.