Poulaphouca Reservoir

Infobox lake
lake_name = Poulaphouca Reservoir
"Taiscumar Pholl an Phúca"
image_lake = Poulahphuca5547.jpg
caption_lake = Blessington Lakes
image_bathymetry =
caption_bathymetry =
location = County Wicklow
coords = coord|53.043157|N|6.170930|W|region:IE_type:waterbody|display=inline,title
type = reservoir
inflow =
outflow = River Liffey
catchment =
basin_countries = Ireland
length =
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Poulaphouca Reservoir (irish place name|Taiscumar Pholl an Phúca|The Devil's Hole), also known locally as "Blessington Lakes", is a national park and area of wild bird conservation in in west County Wicklow.

It was created in 1944 by damming the River Liffey at Poulaphouca as part of the Electricity Supply Board project to build a second hydroelectric station in Ireland, Ardnacrusha on the River Shannon being the first.

The reservoir is one of two major sources of Dublin's water supply. The other major supply is Vartry Reservoir in east Wicklow.

Between 1938 and 1940, 76 houses were demolished, and the bridges at Humphreystown, Baltyboys and Burgage blown up, in anticipation of the flooding of the valley for the Poulaphouca hydroelectric powerstation.

ee also

* Ardnacrusha
* Carnsore Point
* Electricity Supply Board