In Kingston, Massachusetts, a seemingly ordinary structure was standing between the Jones River and a healthier future. The Elm Street Dam, located just downstream of the Elm Street Bridge, had become an obstacle to natural river processes and aquatic life. According to Stantec, the dam was positioned only about 10 feet downstream from the recently reconstructed bridge and had originally formed part of the adjacent Kingston Water Department building. Although its spillway provided an attractive waterfall beside an events facility, the structure substantially impaired ecological resources and required continuing dam-safety inspections and maintenance. In 2014, the Jones River Watershed Association (JRWA) began working with engineering and restoration partners on the complex process of designing, permitting and ultimately removing the dam. Five years later, the Jones River was flowing freely through the former dam site.
The importance of the project becomes clearer when considering the history of the Jones River. The Elm Street Dam was located at the river's head of tide, making it the first dam encountered by migratory fish traveling upstream from the ocean. Massachusetts officials reported in 2019 that the structure had been in place for approximately 300 years. Dams can fundamentally change rivers by slowing water, trapping sediment and altering temperature and dissolved oxygen conditions, while also restricting the movement of fish and other aquatic organisms. Massachusetts' Division of Ecological Restoration explains that dam removal can restore natural connections between aquatic habitats and allow organisms, water, nutrients and sediment to move more freely through river systems.
The ecological stakes were especially significant for diadromous fish—species that move between freshwater and saltwater during their life cycles. The Massachusetts Division of Ecological Restoration identified alewife, blueback herring and rainbow smelt among the target species that would benefit from removal of the Elm Street Dam. Stantec's project description also lists American eel, brook trout and additional resident and migratory fish among the species expected to benefit.
By eliminating the physical obstruction at the head of tide, the project was designed to improve access to upstream habitat rather than simply create a more natural-looking stretch of water. The goal was to reconnect a functioning river system in which fish could reach different habitats needed for spawning, feeding and other stages of their life cycles.
Getting to that point, however, required years of preparation rather than a single construction project. Stantec says its contribution began in 2014 and included multiple phases of engineering design and permitting support. The JRWA convened a broad project team that included the Massachusetts Division of Ecological Restoration and NOAA, while additional state and federal agencies and local stakeholders participated in the effort.
This collaboration was important because removing a dam near a bridge and an existing municipal structure requires careful consideration of engineering, water flow, public infrastructure, environmental impacts and permitting requirements. The project demonstrates how river restoration often depends on coordination among nonprofit watershed organizations, government agencies, engineers, municipalities and specialists in fisheries and natural resources.
The Elm Street project was also part of a broader sequence of restoration work on the Jones River. A previous obstacle, the Wapping Road Dam, had been removed in 2011. A Massachusetts feasibility report notes that this earlier removal opened approximately 3.7 miles of Jones River main-stem habitat and 18.3 miles of tributary habitat.
By the time work began on Elm Street Dam, restoration partners were therefore building on an existing effort to reconnect the watershed. The state also noted that a temporary fish ladder installed at Forge Pond Dam in 2019 enabled herring to reach Silver Lake, illustrating how several projects along the same river could work together to improve fish passage rather than treating each barrier as an isolated problem.
