Tillegra Dam

Infobox lake
lake_name = Tillegra Dam
image_lake =
caption_lake =
image_bathymetry =
caption_bathymetry=
location = Convert|20|km|mi|0|abbr=on NW of Dungog, NSW, Australia
coords = coord|32|19.218|S|151|41.166|E|type:waterbody_region:AU|display=inline,title
type = Reservoir
inflow = Williams River
outflow = Williams River
catchment = Convert|194|km2|sqmi|0|abbr=on
basin_countries = Australia
length = Convert|10|km|mi|0|abbr=on
width =
area = Convert|21|km2|sqmi|1|abbr=on
depth =
max-depth = Convert|80|m|ft|0|abbr=on
volume = 450,000 megalitres
residence_time =
shore =
elevation = Convert|154|m|ft|0|abbr=on AHD
frozen = never
islands =
cities =
reference = Tillegra Dam is a proposed dam on the Williams River to be located Convert|20|km|mi|0|abbr=on northwest of Dungog, in the Hunter Region of New South Wales, Australia.

Overview

The Tillegra Dam was first proposed by the Hunter Water Corporation in the 1970s, but was deferred indefinitely in the 1980s due to the success of user pays pricing. [Cite web|url=http://www.deus.nsw.gov.au/Publications/Tillegra%20Fact%20Sheet%20-%20Customer_20061123.pdf|title=Securing Our Water Future Tillegra Dam|format=PDF|publisher=Hunter Water Corporation|date=November 2006|accessdate=2008-09-09] On 13 November 2006, the NSW Government announced proposals for a AUD $300 million dam at Tillegra to supply water to the Lower Hunter Region and Central Coast. The justification for the dam is based primarily on climate change, with population growth in the Hunter Region also of some relatively minor concern. [Cite web|url=http://www.hunterwater.com.au/files/TillegraWhyNowPaper.pdf|title=Why Tillegra Now?|format=PDF|publisher=Hunter Water Corporation|date=August 2007|accessdate=2008-09-09] The announcement was made without prior community consultation and there is no mention of the proposed dam in Hunter Water's Integrated Water Resource Plan of August 2006. [Cite web|url=http://www.youtube.com/watch?v=ZG6AVlXBUrA|title=Tillegra Dam Shock Announcement|publisher=YouTube (originally aired on NBN News)|date=2008-10-14|accessdate=2008-09-09; Cite web|url=http://www.hunterwater.com.au/files/IWRP.pdf|title=Integrated Water Resource Plan|format=PDF|publisher=Hunter Water Corporation|date=August 2006|accessdate=2008-09-09] Nor is the proposal mentioned in the 2006 State Plan, which was released the next day. [Cite web|url=http://www.nsw.gov.au/STATEPLAN/|title=State Plan - "A New Direction for NSW"|publisher=NSW Government|date=2006-11-14|accessdate=2008-09-09]

Statistics

* Height of dam wall: Convert|80|m|ft|0|abbr=on
* Length of dam wall: Convert|800|m|ft|0|abbr=on
* Surface area: Convert|21|km2|sqmi|1|abbr=on
* Length of lake: Convert|10|km|mi|0|abbr=on
* Total capacity: 450 gigalitres
* Average flow of Williams River: 94 gigalitres per annum. [Cite web|url=http://www.anra.gov.au/topics/water/availability/nsw/swma-hunter-river-unregulated.html|title=Water resources - Availability - New South Wales|work=Australian Natural Resources Atlas|publisher=Department of the Environment, Water, Heritage and the Arts|date=2007-11-16|accessdate=2008-09-09]
* Estimated Cost: AUD $380 million (as of September 2008)
* Proposed completion date: 2011

References