Starting Aug. 4, Port of Long Beach plans to shut down Harbor Scenic Drive between Harbor Plaza and Ocean Boulevard for several weekends to allow work crews to make roadway repairs. This is expected to affect anyone needing access to Piers G, H and J at the port, as well as the Queen Mary, the Carnival Cruise terminal and adjacent businesses, so drivers have been advised by the port to mind the detours and move cautiously when in work zone areas. Heavy-duty vehicles are expected to detour through a combination of Pico Avenue and Harbor Plaza, while other vehicles could…