Officials have said that they have developed a proposal to complete the Sept. 11 memorial yesterday at ground zero in time for the 10th anniversary of the terrorist attack.

Officials with the Port Authority of New York and New Jersey ( PANYNJ), a bi-state port district that runs most of the regional transportation infrastructure, now say that the authority, which is overseeing the rebuilding effort, can have most elements of the memorial completed by August 2011, The New York Times reported Friday.

New York Mayor Michael R. Bloomberg and the memorial foundation have vigorously insisted in recent weeks that the 610 million dollars memorial must be open to the public by Sept. 11, 2011, a goal that the authority had until recently said was impossible, according to the paper.

The rebuilding of ground zero has been hampered by competing political agendas, long delays, swelling costs and calamities, like the 2007 blaze at the former Deutsche Bank tower in which two firefighters died. The building was severely damaged in the 2001 attack and is still being dismantle, the paper said.