Definition
Poulaphouca is a locality in County Wicklow, Ireland, most notable for the Poulaphouca Reservoir (also known as the Blessington Lakes) and the associated hydro‑electric power station.
Overview
Situated on the River Liffey, Poulaphouca lies approximately 40 km southwest of Dublin. In the late 1930s the Irish government commissioned the construction of a dam across the Liffey at this site, creating a large artificial lake that flooded the surrounding valley. The reservoir supplies water for domestic consumption, recreation, and hydro‑electric generation. The area has become a popular destination for fishing, sailing, and birdwatching, and it contributes to regional tourism.
Etymology / Origin
The name “Poulaphouca” is derived from the Irish language. It is commonly interpreted as Poll an Phúca – “hole of the púca”, where pól means “hole” or “pool” and púca denotes a mythological goblin or spirit. Accurate information on the precise historical spelling and meaning is not fully confirmed.
Characteristics
| Aspect | Details |
|---|---|
| Reservoir name | Poulaphouca Reservoir (Blessington Lakes) |
| Construction period | 1939–1940 |
| Dam type | Concrete gravity dam |
| Primary river | River Liffey |
| Reservoir capacity | Approximately 300 million m³ (≈ 27 billion US gal) |
| Surface area | About 5,800 ha (≈ 14,300 acres) |
| Hydroelectric capacity | Roughly 20 MW (operated by ESB Group) |
| Water supply | Provides a significant portion of the drinking water for Dublin and surrounding counties |
| Recreational uses | Angling (particularly trout and pike), sailing, windsurfing, cycling, and wildlife observation |
| Ecology | Supports diverse aquatic and avian species; designated as a Special Area of Conservation (SAC) for certain habitats |
Related Topics
- Blessington Lakes – The collective name for the reservoir and associated water bodies created by the dam.
- River Liffey – The river impounded at Poulaphouca, flowing through Dublin to the Irish Sea.
- Hydroelectric power in Ireland – Poulaphouca is one of several hydro‑electric schemes contributing to Ireland’s renewable energy portfolio.
- County Wicklow – The “Garden of Ireland”, containing numerous natural attractions, of which Poulaphouca is a part.
- Irish folklore – The púca is a shape‑shifting spirit; the place‑name reflects this mythological heritage.
All information presented is based on established sources such as governmental publications, the Electricity Supply Board (ESB) records, and Irish geographical references.