The Office of Public Works has carried out many studies since 1995 when the Arterial Drainage (Amendment) Act was enacted and has resulted in a large number of flood relief schemes being implemented. Currently, OPW is involved in a large number of studies at various stages from Pre-Feasibility to where works are being implemented. These include:—
River Tolka, Dublin and Meath
River Suir (Clonmel), Tipperary
Munster Blackwater (Mallow), Cork
Munster Blackwater (Fermoy), Cork
River Fergus (Ennis), Clare
River Barrow (Carlow), Carlow
John's River (Waterford), Waterford
River Slaney (Enniscorthy), Wexford
River Mall (Templemore), Tipperary
River Slaney (Tullow), Carlow
Mornington River, Meath
Avoca River (Arklow) Wicklow
River Pill (Piltown), Kilkenny
River Lee, Cork
River Dodder, Dublin
Tullamore, Offaly
Portarlington, Laois/Offaly
Harry's Mall, Limerick City
Rye River (Leixlip), Kildare
Silleachain River (Leixlip), Kildare
Dargle River (Bray) Wicklow
New Ross, Wexford
Letterkenny, Donegal
Raphoe, Donegal
River Shannon
Decisions to proceed to works on all schemes can only be decided upon the completion of Feasibility Studies.
The Office of Public Works is also working with a number of Local Authorities, to identify the cause of localised flooding which occurred early this year and possible solutions which can be implemented through minor local works and which can be shown to be environmentally acceptable and to have adequate social and economic benefit.
The Office of Public Works also maintains Arterial Drainage Schemes undertaken since 1945 and while these were designed primarily to provide improved land drainage, the standard of design was raised in urban areas and there is evidence that these schemes are effective in preventing flooding in such areas.
The Office of Public Works will commence work next year on the preparation of Catchment Flood Risk Assessment and management studies of river catchments throughout the country where it is considered that a significant risk of flooding exists. These studies will lead to the preparation of plans to manage the flood risks. The studies referred to above, which are currently under way on the River Lee and the River Dodder are pilot studies to prepare for this national programme.