The City Council accepted a $1.5 million state grant to take down the Mill Street Dam.
The project has been years in the making and is now out to bid. The city is hoping to have work start in late June or July and be completed before the winter.
The state has allocated another $400,000 to remove the Tel-Electric Dam on Mill Street.
"This puts us in a much better position to feel confident that when we put this to bid we will have money for the things we want to do," Parks and Open Spaces Manager Jim McGrath said.
The open house will also include a discussion of the anticipated fourth and final round of funding for restoration projects to compensate for natural resources that were injured or lost as a result of the release of hazardous materials from the General Electric facility in Pittsfield into the Massachusetts portion of the Housatonic River watershed.