Reply To: Boro Park Eruv

I was told by a Rebbe of mine that he spoke to R’ Moshe about the eruv question. R’ Moshe said the 1 in 5 rule applies for any city. He said that Brooklyn has another thing which lowers the number needed – the Coney Island beaches. He said that during the summer, you don’t need 3 million people. Therefore, even if the number of residents is below 3 million, you can get the 600,000 people that need to be outside when you include the beach.