GROTON -- The Nashua River Watershed Association invites the public to a free presentation on "Dam Removal and River Restoration in Massachusetts" on Wednesday, Oct. 17, at 7 p.m., at the NRWA River Resource Center, 592 Main St.

Our presenter will be Alex Hackman, restoration specialist and project manager for the Massachusetts Division of Ecological Restoration. Dam removal can simultaneously retire obsolete (and often failing) infrastructure, eliminate owner liability, reduce flood hazards, and dramatically improve ecological conditions of the aquatic ecosystem. The Massachusetts Division of Ecological Restoration emphasizes dam removal as a river restoration tool, and is currently working on more than 30 dam-removal projects with local, state, and federal partners.

This talk will describe the current climate, common issues, and science behind dam removal, including an overview of two new dam-removal projects in the Nashua River watershed. This program is free and open to the public. Seating is limited and registration is strongly recommended. Seats for all registrants will be held until 6:55 p.m., at which time open seats will be released to walk-in attendees. To register, contact Pam Gilfillan, NRWA development associate, at 978-448-0299, or email PamG@NashuaRiverWatershed.org.