Thirlmere Dam, Cumbria
Posted by: Groundspeak Premium Member flipflopnick
N 54° 33.656 W 003° 04.175
30U E 495500 N 6045936
Quick Description: Thirlmere dam was completed in 1894, to create a reservoir to supply clean water to the growing population 100 miles away in Manchester. The dam wall is actually two dams with a natural rock outcrop in the middle.
Location: North West England, United Kingdom
Date Posted: 5/16/2007 8:09:27 AM
Waymark Code: WM1J2Z
Published By: Groundspeak Regular Member NFreitas
Views: 104

Long Description:
Thirlmere dam actually raised the level of two former small lakes by 15 meter, named Leatheswater and Wythburn water, capturing 9000 million gallons of clean water. Initially no water entered the reservoir which could be contaminated by human effluent. The sheep still grazed in the watershed though. It is only recently (1980s) that the public have been given access to the water and shoreline.
The water travels all the way to Manchester by gravity, alone, no pumps. Victorian engineering at its best. The aqueduct is now lined with plastic pipe in places, originally clay like a canal and concrete in places. See other waymarks about the 100 mile aqueduct.
The Thirlmere Dam was designed by George Henry Hill, and constructed by Morrison and Mason of Glasgow, who started in 1890. Stone was quarried at Longridge Lancashire and delivered by train to Windermere, and then by horse and cart.

The following is the inscription on the stone erected on the embankment:—

MANCHESTER CORPORATION WATERWORKS.

THIRLMERE.

THE FIRST STONE OF THIS EMBANKMENT WAS LAID ON THE
22ND AUGUST, 1890,

BY

Alderman.Sir JOHN JAMES HARWOOD, Knight.
_________

ALDERMAN JOHN MARK, MAYOR.

WATERWORKS COMMITTEE
Alderman Sir JOHN JAMES HARWOOD, Knight, Chairman.
Councillor BOSDIN THOMAS LEECH, Deputy-Chairman.

ALDERMEN
JOSEPH LAMB, HUGO SHAW, WALTON SMITH, JOSEPH THOMPSON.

COUNCILLORS
JOHN HARRIS ANDREWS, JOSEPH BROOKS, ROBERT GIBSON,
WlLLIAM TELFORD GUNSON, JOHN HINCHLIFFE, JAMES HOY,
ABRAHAM EVANS LLOYD, ALEXANDER McDOUGALL, Junr.,
HENRY CHARLES PINGSTONE, JOHN ROBERTS, SAMUEL BARTON WORTHINGTOM.

_________

GEORGER HENKY HILL., Engineer. WILLIAM HENRY TALBOT, Town Clerk.

Waterway where the dam is located: Thirlmere reservoir

Main use of the Water Dam: Water Supply (Drinkable)

Material used in the structure: masonry

Height of Dam: 58 feet (18m)

Date built: 10/12/1894

Fishing Allowed: yes

Motor Sports Allowed: no

Visit Instructions:
Photo of the Dam and a description of your visit.
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