Those dedicated to the preservation of Stillhouse Cove have much to celebrate.

The historic Edgewood salt marsh – the only one in Cranston, and one of the few remaining in upper Narragansett Bay – recently saw the opening of a new boat ramp, one of the last pieces of a 10-year restoration project that has revitalized the site.

This year marks a century since the formal establishment of what is now Stillhouse Cove Park by the Rhode Island Metropolitan Parks Commission, and several months ago the cove was officially added to the National Register of Historic Places. The site also served as the landing spot for Americans following the burning of the Gaspee in 1772, an event commemorated this earlier year during the 50th Gaspee Days celebration.

In honor of the milestones, the Edgewood Waterfront Preservation Association (EWPA) has planned a family-friendly gathering on Sept. 26.

“It really is meant to be a community celebration,” said the EWPA’s Barbara Rubine, highlighting “the end of 10 years of intensive restoration, the journey to the National Register … and volunteerism and the importance of public parks.”

The day’s events will run from 1 p.m. to 3 p.m., kicking off with the Pawtuxet Rangers Color Guard marching into the cove area from the top of Windsor Road. The Pawtuxet Volunteer Fire Truck will be present, and Joe’s Backyard Band will perform.

The Edgewood Garden Club will be on hand to share information about the park’s flora and fauna from the colonial era to present day, and will also team with Save The Bay to discuss the park’s ecology. Members of the EWPA will discuss the cove’s history and share details of the restoration project.

There will be a dramatic reading of the story of the sinking of the Gaspee, as well as Geraldine Cannon reading from her book “The Swans of Stillhouse Cove.” The Roger Williams Park Zoomobile is also slated to be present.

Several merchants from Pawtuxet Village will be represented, and there will be a cake recognizing the creation of the park in 1915. The event is free and open to the public.

Rubine said part of the hope with Sept. 26’s celebration is to engage more young people in the effort to preserve the park as a recreational, historic, and natural resource. The turnaround, she said, has already been remarkable.

The site now frequently hosts weddings, and day-to-day activities such as yoga. The new boat ramp has also proven popular. Several years ago, she said, the level of public use and enjoyment was substantially less.

“It’s really been a transformation,” she said.

More improvements are on the way, this time in terms of traffic calming measures. Work is slated to begin this month on a new rotary and elevated crosswalk.

“It’s been a long time coming, and it’s all part of the restoration of the entire area,” Rubine said.

More information regarding the EWPA can be found on its website, www.stillhousecove.org, or on its Facebook page.