Mystic — Save the Sound, a bistate program of the Connecticut Fund for the Environment, will host a celebration and volunteer event Saturday at the site of the former Hyde Pond Dam.

The work will take place from 10 a.m. to 2 p.m. at the site, 33 New London Turnpike. Participants should park at Seaport Auto.

Project leaders, neighbors and volunteers will plant native vegetation along Whitford Brook, where the dam once blocked water flow and fish passage.

This celebration is timed just before Mother’s Day as the restoration project allows mother fish to make their way upstream to spawn and lay their eggs, Save the Sound said in a news release. 

Save the Sound, the U.S. Fish and Wildlife Service and other project partners finished removing the dam in January, reducing flood risk and restoring migratory fish passage for the first time in more than 300 years.

The native vegetation planting will further the restoration goals by stabilizing the streambank and providing food and shelter for wildlife, Save the Sound said. 

The project was funded by the fish and wildlife service, Patagonia outdoor clothing company, and the Long Island Sound Futures Fund.