Lucas Heights is a

suburb A suburb (more broadly suburban area) is an area within a metropolitan area, which may include commercial and mixed-use, that is primarily a residential area. A suburb can exist either as part of a larger city/urban area or as a separ ...

southern Sydney Southern Sydney is the southern metropolitan area of Sydney, in the state of New South Wales, Australia. Southern Sydney includes the suburbs in the local government areas of Georges River Council and part of Bayside Council (collectively know ...

, in the state of

New South Wales ) , nickname = , image_map = New South Wales in Australia.svg , map_caption = Location of New South Wales in AustraliaCoordinates: , subdivision_type = Country , subdivision_name = Australia , established_title = Before federation , es ...

Australia Australia, officially the Commonwealth of Australia, is a sovereign country comprising the mainland of the Australian continent, the island of Tasmania, and numerous smaller islands. With an area of , Australia is the largest country by ...

. It is near to the

Royal National Park The Royal National Park is a protected national park that is located in Sutherland Shire in the Australian state of New South Wales, just south of Sydney. The national park is about south of the Sydney central business district near the loca ...

Geography

It is located 31 kilometres south-west of the

Sydney central business district The Sydney central business district (CBD) is the historical and main commercial centre of Sydney. The CBD is Sydney's city centre, or Sydney City, and the two terms are used interchangeably. Colloquially, the CBD or city centre is often referr ...

, in the

local government area A local government area (LGA) is an administrative division of a country that a local government is responsible for. The size of an LGA varies by country but it is generally a subdivision of a State (administrative division), state, province, divi ...

of the

Sutherland Shire Sutherland Shire is a local government area in the southern region of Sydney, in the state of New South Wales, Australia. Sutherland Shire comprises an area of and as at the had an estimated population of . Sutherland Shire is colloquially ...

. Lucas Heights is located on the

Woronora River The Woronora River is a perennial river of the Sydney Basin, located in the Sutherland Shire local government area of Greater Metropolitan Sydney, approximately south of the Sydney central business district, in New South Wales, Australia. 'W ...

, which flows north into the

Georges River The Georges River, also known as Tucoerah River, is an intermediate tide-dominated drowned valley estuary, located to the south and west of Sydney, New South Wales, Australia. The river travels for approximately in a north and then easterly ...

. Unusually for a suburb, Lucas Heights does not contain a residential area. The residential area previously part of Lucas Heights was renamed Barden Ridge in 1996 to increase the real estate value of the area, as it would no longer be instantly associated with the High Flux Australian Reactor (HIFAR).

History

Lucas Heights was named after John Lucas Senior, a flour miller who in 1823 was granted on the 'head of unnamed stream into Georges River'. He built a water-driven mill for grinding corn from the

Illawarra The Illawarra is a coastal region in the Australian state of New South Wales, nestled between the mountains and the sea. It is situated immediately south of Sydney and north of the South Coast region. It encompasses the two cities of Wollong ...

farms. Small ships sailed up the coast into

Botany Bay Botany Bay ( Dharawal: ''Kamay''), an open oceanic embayment, is located in Sydney, New South Wales, Australia, south of the Sydney central business district. Its source is the confluence of the Georges River at Taren Point and the Cook ...

, Georges River and the Woronora River.

Commercial areas

Lucas Heights has become arguably most notable as the site of the

Australian Nuclear Science and Technology Organisation The Australian Nuclear Science and Technology Organisation (ANSTO) is a statutory body of the Australian government, formed in 1987 to replace the Australian Atomic Energy Commission. Its head office and main facilities are in southern out ...

(ANSTO) research establishment originally created by the Australian Atomic Energy Commission and home to the historic HIFAR research

nuclear reactor A nuclear reactor is a device used to initiate and control a fission nuclear chain reaction or nuclear fusion reactions. Nuclear reactors are used at nuclear power plants for electricity generation and in nuclear marine propulsion. Heat fr ...

. HIFAR was shut down in January 2007 and replaced by the

OPAL Opal is a hydrated amorphous form of silica (SiO2·''n''H2O); its water content may range from 3 to 21% by weight, but is usually between 6 and 10%. Due to its amorphous property, it is classified as a mineraloid, unlike crystalline form ...

research reactor. OPAL bears leading

neutron radiation Neutron radiation is a form of ionizing radiation that presents as free neutrons. Typical phenomena are nuclear fission or nuclear fusion causing the release of free neutrons, which then react with nuclei of other atoms to form new isotopes— ...

facilities and attracts international scientists as staff members and many hundreds of user groups. In 2005, Australian police suggested the HIFAR reactor was a possible target for a foiled terrorist bomb attack. The area is also on

Google Maps Google Maps is a web mapping platform and consumer application offered by Google. It offers satellite imagery, aerial photography, street maps, 360° interactive panoramic views of streets (Street View), real-time traffic conditions, and rou ...

, which has caused some concerns regarding its security. Spent fuel from the OPAL reactor is transported to Port Kembla, then exported to France for reprocessing. The Australian Institute of Nuclear Science and Engineering (AINSE) also has its headquarters at Lucas Heights. Lucas Heights also hosts a (non-nuclear) waste-management facility, which was for many years a major disposal site for sanitary carters. Some of the full landfills on this site are presently being sequentially redeveloped into a sporting complex containing playing fields for

soccer Association football, more commonly known as football or soccer, is a team sport played between two teams of 11 players who primarily use their feet to propel the ball around a rectangular field called a pitch. The objective of the game is ...

netball Netball is a ball sport played on a court by two teams of seven players. It is among a rare number of sports which have been created exclusively for female competitors. The sport is played on indoor and outdoor netball courts and is specifical ...

rugby league Rugby league football, commonly known as just rugby league and sometimes football, footy, rugby or league, is a full-contact sport played by two teams of thirteen players on a rectangular field measuring 68 metres (75 yards) wide and 112 ...

and the home of the award-winning "The Ridge"

golf Golf is a club-and-ball sport in which players use various clubs to hit balls into a series of holes on a course in as few strokes as possible. Golf, unlike most ball games, cannot and does not use a standardized playing area, and coping wi ...

driving-range.

Climate

Due to its elevation, Lucas Heights is one of the few places in Sydney that has a borderline Oceanic (''Cfb'') and a

Humid subtropical climate A humid subtropical climate is a zone of climate characterized by hot and humid summers, and cool to mild winters. These climates normally lie on the southeast side of all continents (except Antarctica), generally between latitudes 25° and 40° ...

(''Cfa'').

References

Suburbs of Sydney {{Sydney-geo-stub