The blasting has begun.

Contractors began blasting underground in downtown Akron last week as workers continue building a giant underground tunnel called the Ohio Canal Interceptor Tunnel as part of the city’s massive sewer project.

“We’re to the point where the rock is too hard to dig, so now we have to do controlled blasting,” said Heather Bolestridge, communications manager for Akron Waterways Renewed, the name given to the sewer project.

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