Home / Water Division / NWD Capital Improvement Projects / Easton Pond Interim Stabilization Project
NWD Capital Improvement Project
Active Construction
Project Type
Dam Safety and Interim Stabilization
Current Phase
Active Construction
Estimated Cost
Not separately budgeted
Funding
Water Division Operating Budget
The Easton Pond Interim Stabilization Project consists of vegetative clearing and stabilization for the sediment basin associated with the North and South Easton Pond Dams. The work addresses near-term dam safety concerns while the City advances the long-term Easton Pond Dam Resilience Project. The interim project is designed in alignment with state dam safety regulations and critical drinking water supply protections.
Increasing storm frequency and intensity have created the need for additional structural reinforcements to prevent damage and reduce risk until the long-term stability plan can be implemented. The associated risk of structural deterioration necessitates urgent mitigation measures.
The Easton Ponds are the primary drinking water source for the City of Newport, the Town of Middletown, and a portion of the Town of Portsmouth. The long-term resilience project will deliver comprehensive coastal storm protection, but that project requires multi-year design, permitting, and federal funding. The Interim Stabilization Project protects dam integrity in the near term, preventing the conditions described above from progressing into a structural failure event while the larger project is funded and built.
The permitted scope of work, as approved by RIDEM and CRMC, is Vegetative Clearing and Stabilization for Sediment Basin (North and South Easton Pond). Work elements include:
The Newport Water Division submitted an Application for State Assent to the Rhode Island Coastal Resources Management Council (CRMC) and the Rhode Island Department of Environmental Management (RIDEM), Office of Compliance and Inspection. The application was accompanied by a project report and engineering plans detailing the Interim Stabilization Project.
Current project approvals take precedence over and supersede any previous approvals.
The Easton Ponds are the primary drinking water source for Newport, Middletown, and a portion of Portsmouth. Protecting dam integrity now prevents near-term structural risk while the long-term resilience project is funded and built.
The Interim Stabilization Project is being implemented to protect the integrity of the primary drinking water supply for Newport, Middletown, and a portion of Portsmouth. Drinking water service to customers will not be interrupted by this work. Construction-phase impacts on site access and nearby roadways will be communicated to the public as construction advances.
This page summarizes a long-term capital project. Information is updated as design, permitting, and construction milestones are reached. For questions, please contact the Newport Department of Utilities at 401-845-5600.
Home / Water Division / NWD Capital Improvement Projects / Easton Pond Dam Resilience Project
NWD Capital Improvement Project
Planning & Design
Project Type
Source Water and Dam Resilience
Current Phase
Planning & Design
Estimated Cost
$25 million (preliminary)
Funding
FEMA BRIC (75%) / Water Division (25%)
The Easton Pond Dam Resilience Project will improve the flood resilience of the South Easton Pond Dam, which together with the North Easton Pond Dam impounds the Easton Ponds reservoir system. The Easton Ponds are critical fresh drinking water reservoirs serving the City of Newport and the Town of Middletown. The project will raise the South Easton Pond earthen embankment and armor the upstream face with articulated concrete blocks (ACB) to provide protection against wave attack, saltwater intrusion, and overtopping. The project also includes reconstruction of the South Pond Primary Spillway and installation of a crest gate at the spillway to prevent saltwater intrusion.
For federal grant administration purposes, this project is formally titled the South Easton Pond Dam Flood Resilience Project in the Notice of Interest submitted to the Rhode Island Emergency Management Agency (RIEMA) and in the FEMA Building Resilient Infrastructure and Communities (BRIC) application.
North and South Easton Ponds are formed by earthen embankments and are located in a low-lying coastal area, immediately landward of Easton Beach. The site is susceptible to saltwater intrusion and inland flooding. The Easton Ponds are part of a nine-reservoir interconnected system that serves approximately 35,000 year-round residents plus an increased seasonal population, Naval Station Newport, Middletown, Portsmouth, and regional wholesale customers.
The Easton Ponds system is the only public drinking water source on Aquidneck Island. Loss of this source to a major coastal storm would interrupt service to Newport, Middletown, Portsmouth, Naval Station Newport, and regional wholesale customers, with no equivalent alternative supply available on the island.
This project mitigates risks from flooding, tropical and extratropical storms, dam failure, sea level rise, drought, and infrastructure failure. It directly responds to strategies and priorities identified in the City of Newport Hazard Mitigation Plan Update, the Town of Middletown Strategy for Reducing Risks from Hazards, and the 2024 Rhode Island State Hazard Mitigation Plan.
Design basis. Design freeboard and crest elevation are set against the NOAA Intermediate High sea level rise scenario combined with Category 3 storm surge, consistent with the 2019 Climate Resiliency Assessment.
The preliminary estimated project cost is $25 million. The Newport Water Division is pursuing 75% federal funding through the Federal Emergency Management Agency (FEMA) Building Resilient Infrastructure and Communities (BRIC) program, administered in Rhode Island by the Rhode Island Emergency Management Agency (RIEMA).
The 25% non-federal match will be funded through the Newport Water Division enterprise fund, supported by bond authorization through the Newport City Council. The source of repayment is water rates. The Newport Water Division operates as an enterprise fund, separate from the City’s general budget; water rates are paid only by water customers and are not collected through taxes.
The estimated project cost and funding split are preliminary and will be refined through final design, federal benefit-cost analysis, and grant award. FEMA and RIEMA funding is provided on a reimbursement basis.
The project is planned for completion within three years of notice to proceed, including preliminary design, parallel permitting, and an 18-month construction window.
The project will be advanced through coordinated reviews with the following agencies:
Environmental, permitting, and cultural resource review will be advanced through preliminary and final design. No fatal flaws have been identified to date.
While the Easton Pond Dam Resilience Project advances through preliminary design and permitting, the Newport Water Division is also implementing the Easton Pond Interim Stabilization Project, a near-term measure that protects dam integrity until the long-term resilience project is funded and built.
The current preliminary design and permitting phase does not affect drinking water service or daily operations at the Easton Ponds. Construction-phase impacts will be communicated to the public as construction approaches, including any temporary changes to site access, traffic patterns, or recreational use of the surrounding area.
Long term, the project strengthens the Newport Water Division’s ability to deliver safe drinking water through more frequent and severe coastal storms and sea level rise, protecting every ratepayer and wholesale customer who depends on the Easton Ponds source.
This page summarizes a long-term capital project. Information is updated as design, permitting, and grant milestones are reached. For questions, please contact the Newport Department of Utilities at 401-845-5600.