Plymouth requests $6.7M for Jenny Pond Dam repairs and enhancements

On March 10, 2025, the Plymouth Committee of Precinct Chairs convened to discuss critical infrastructure projects, focusing primarily on the urgent repairs needed for the Jenny Pond Dam and the replacement of culverts in Morton Park. The meeting highlighted the town's commitment to maintaining safety and ecological integrity while addressing aging infrastructure.

The Jenny Pond Dam, classified as a significant hazard dam, requires extensive repairs due to its deteriorating condition. The dam's emergency action plan is in place, but inspections have revealed numerous maintenance issues that need immediate attention. The dam's location presents logistical challenges for repair work, as it is situated near a roadway and various businesses. The proposed repairs include removing large trees that have compromised the dam's structure, upgrading utilities, and enhancing spillway mechanisms to improve safety and functionality.

A significant aspect of the proposed repairs is the introduction of a nature-like fishway, which aims to facilitate fish passage while also addressing the dam's inability to handle a hundred-year storm event. This innovative solution not only meets ecological requirements but also aligns with the town's historical preservation efforts, as the dam is located near the historic grist mill.

Funding for the dam repairs has been secured through a $10 million grant from NOAA, with additional support from the town's Community Preservation Act funds. The total estimated cost for the dam repairs has risen to $6.7 million, reflecting the increasing costs of construction and materials.

In addition to the dam repairs, the committee discussed the replacement of two undersized culverts in Morton Park, which are crucial for maintaining safe access to the park. These culverts have weight restrictions and are inadequate for current traffic demands. The town successfully applied for a $2 million federal grant aimed at improving fish passage, which will significantly offset the total project cost of approximately $5.38 million.

The meeting underscored the town's proactive approach to infrastructure management, balancing the need for public safety with ecological considerations. As the committee moves forward, the focus will be on finalizing designs and securing additional funding to ensure these vital projects are completed efficiently and effectively. The discussions reflect a broader commitment to enhancing community resilience and preserving the natural environment in Plymouth.