Silent Valley Reservoir, Co. Down, N Ireland - NPO postcard c.1960s

Postcard
• Picture / Image:  Silent Valley, Co. Down, Northern Ireland
• Publisher:  NPO, Belfast
• Postally used:  no
• Stamp:  n/a
• Postmark(s): n/a
• Sent to:  n/a
• Notes / condition: 

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Text from the free encyclopedia WIKIPEDIA may appear below to give a little background information (internal links may not  work) :

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The Silent Valley Reservoir is a reservoir located in the Mourne Mountains near Kilkeel, County Down in Northern Ireland. It supplies most of the water for County Down, surrounding counties and most of Belfast. It is owned and maintained by Northern Ireland Water Limited (formerly DRD Water Service). The reservoir was built between 1923 and 1933 by a workforce of over one thousand men, nine of whom died.

With Belfast's rapid growth, there was a fast growing demand for more and more water. The two existing upload water catchments were becoming increasingly insufficient. Local civil engineer, Luke Livingstone McCassey was appointed the task of finding a source of water large enough to sustain Belfast. Five potential sites were surveyed in County Down, and County Antrim. McCassey ultimately decided on the Mournes in Down. The reason the Mournes proved so popular with McCassey was the cleanliness of the water and the high amount of rainfall – both paramount factors in water sources. Upon deciding on the site, water commissioners agreed on building a 9,000-acre (36 km²) catchment area. This area is surrounded by the Mourne Wall, built entirely by hand, taking eighteen years to complete. At the time the catchment was capable of providing some 30 million imperial gallons (140,000 m³) of water per day, but this was too much. A scheme was developed and divided into 3 stages:

1. The first stage was to divert water from the Kilkeel and Annalong river through pipes to a reservoir near Carryduff. These water pipes were capable of supplying 10 million imperial gallons (45,000 m³) of water per day.
2. The second stage was to build a storage reservoir across the Kilkeel River, after new pipes laid there were able to supply another 10 million imperial gallons (45,000 m³) of water per day.
3. The third stage was building another storage reservoir in Annalong to impound the Annalong River.

type=printed postcards

theme=topographical: british

sub-theme=northern ireland

county/ country=down

number of items=single

period=1945 - present

postage condition=unposted