Lewis acknowledged that a permanent street closing would have disadvantages as well.
"But I imagine there are problems as well--access to parking is obviously very important, and some major buildings such as the Science Center need to get deliveries."
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Culver said the construction project is progressing well.
"It looks like the street will probably be open before the end of next week," he added. The street will be paved by Wednesday or Thursday.
Both Culver and Power stressed that a possible permanent closing is only in the beginning stages.
"My sense is that it would take quite a while to develop," said Culver. "In terms of Harvard, we've been around for 350 years. A 10-year study is no big deal."