OPW moves to reassure Wicklow residents over River Dargle Flood Relief Scheme maintenance
The Wicklow PeopleThe Office of Public Works (OPW) has moved to reassure residents in Bray following concerns raised in the Dáil about the maintenance of the River Dargle Flood Relief Scheme and the handling of debris removed from the river channel.
The issue was highlighted by Wicklow Sinn Féin TD John Brady, who sought clarity on the upkeep of the multimillion‑euro scheme and the practice of depositing material on a designated overflow area.
In response, junior minister Kevin Boxer Moran outlined the current maintenance arrangements and confirmed that Wicklow County Council, as the lead authority for the project, continues to manage the day‑to‑day upkeep of the extensive flood defences.
The scheme, completed in November 2017 after years of planning and construction, was designed to protect approximately 660 homes and businesses from severe flooding events.
It offers defence against a 1‑in‑100‑year fluvial flood and a 1‑in‑200‑year tidal flood, making it one of the most significant flood protection projects ever undertaken in the county.
Maintenance of the scheme began in 2018, with Wicklow County Council responsible for tasks such as clearing silt and debris from the river channel, removing blockages from trash screens, controlling invasive species, and carrying out routine checks on culverts, outfall valves and demountable barriers.
These activities are essential to ensuring the scheme continues to operate as designed, particularly during periods of heavy rainfall or high tides when the risk of flooding increases.
The OPW reimburses the council for eligible maintenance costs, and the figures released by Mr Moran show a total of €186,195.73 recouped between 2021 and 2025.
The annual amounts vary significantly, with €70,023.74 reimbursed in 2021, €16,995.57 in 2022, €48,161.47 in 2023, €41,061.20 in 2024 and €9,953.75 in 2025. The minister noted that the 2021 payment covered maintenance costs incurred since the completion of the scheme, explaining the higher figure for that year.
However, the focus of Deputy Brady’s question centred on concerns that debris removed from the river was being deposited on a flood overflow area, potentially undermining the scheme’s effectiveness.
In response, Deputy Moran said the OPW had discussed the matter with Wicklow County Council and had received assurances that all material is placed in a location that lies above the design flood level and outside the flood extent of the scheme.
This means, according to the OPW, that the deposited debris does not interfere with the floodplain or compromise the system’s ability to manage excess water during extreme weather events.
The reassurance comes amid heightened public sensitivity around flood management in Bray, where residents have experienced severe flooding in the past, including Hurricane Charley back in 1986.
The River Dargle burst its banks on several occasions before the flood relief scheme was built, causing extensive damage to homes, businesses and infrastructure.
The scheme was intended to put an end to such events, and while it has been largely successful, ongoing maintenance remains crucial to its performance and long term success.