Roar on the Shore has expanded from a three day event to a four day extravaganza starting Wednesday, July 16th.
Officials from the Manufacturer and Business Association expect anywhere from 100,000 to 120,000 people to come to Erie from across the country.
That means an estimated $20 million will be pumped into the Erie economy.
Proceeds from this year’s Roar on the Shore will go to Saint Patrick's Haven.
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