NEW YORK - The city has finished searching a service road and a skyscraper hovering over the World Trade Center site for Sept. 11 victims' remains, and has turned its search to a sewer line running beneath ground zero.

City officials found a total of 646 human bones in a service road after digging up the path and hand-sifting the debris, deputy mayor Ed Skyler wrote in a memo. The road had carried construction trucks in and out of ground zero.

Across from the site, workers over the past two years found another 785 bones at a 40-story vacant skyscraper that is being razed.

The city still needs to search more than 1,000 cubic yards of debris recovered from former ramps that led to the former trade center, and is searching a sewer line underneath ground zero where eight bones have been found so far, Skyler said.

Digging is complete at the site of a destroyed Greek Orthodox church.\ Eight remains were found during that excavation, and more than half of the recovered debris will be hand-sifted at a Brooklyn facility.

Another part of the site still to be searched is a grass-covered area near ongoing construction of a trade center transit hub and a subway line, Skyler said.

Officials who oversaw the 2001-2002 cleanup had said that area had not been completely searched before the site was turned over to its owner in May 2002. Skyler said the yearlong search will be over in November.

Many Sept. 11 family members have criticized the search, saying the city is rushing to finish it and hasn't provided enough information about the techniques it has used.

“How many times have they finished it? They finished Deutsche Bank three times. ... They're just going as fast as they can,” said Diane Horning, a leading critic of the city's search. Her son, Matthew, was killed at the trade center on Sept. 11.

AP-ES-06-01-07 2056EDT