candlepower

Barrenjoey Head Lighthouse

From Wikipedia, the free encyclopedia
Coordinates 33°34′49″S 151°19′47″E
Location Broken Bay, Sydney, New South Wales, Australia
Constructed 1881
First lit 1881
Automated 1932
>
The Barrenjoey Head Lighthouse is a heritage-listed lighthouse at Barrenjoey Headland, Palm Beach, Northern Beaches Council, New South Wales, Australia. It was designed by James Barnet, the New South Wales Colonial Architect and built by Isaac Banks. It is also known as Barrenjoey Head Lightstation. The property is owned by Office of Environment and Heritage, an agency of the Government of New South Wales. The lightstation was added to the New South Wales State Heritage Register on 2 April 1999. Completed in 1881, the current lighthouse is the third light constructed on the Barrenjoey headland in the Northern Beaches district of Sydney. The light is automated and operated by Roads and Maritime Services; while the buildings are managed by the NSW National Parks and Wildlife Service. There is a head keeper's cottage as well as two assistant keeper's cottages located on the headland. They are built from Hawkesbury sandstone quarried from the site, and have galvanized iron roofs.In 1932, the Barrenjoey Lighthouse was converted to automatic operation with the installation of an acetylene Dalén light of 6,000 candlepower. It was turned off and on by a Sun valve. Although the acetylene gas apparatus was efficient, access to the tower for re-supply presented problems, so in 1972 the lighthouse was converted to electric operation, with a new lamp capable of 75,000 candlepower. With automation, the lightkeepers were no longer needed and finally withdrawn.
>
Construction Sandstone tower
Tower shape Cylindrical tower with balcony and lantern
Markings Unpainted tower and white lantern room
Tower height 20 metres (66 ft)
Focal height 113 metres (371 ft)
Lens 2nd order Chance Brothers Fresnel lens
Light source Mains power
Intensity 75,000 candela
Range 19 nautical miles (35 km; 22 mi)
Characteristic Fl (4) W 20s. Visible in sector
Admiralty number K2702
NGA number 111-6156
ARLHS number AUS-005
Operator NSW National Parks and Wildlife Service
Heritage Heritage Act - State Heritage Register
Official name Barrenjoey Head Lightstation
Type State heritage (built)
Designated 2 April 1999
Reference no. 979
Type Lighthouse Tower
Category Transport – Water
Builders Isaac Banks, Builder
>
WOLLONGONG HEAD LIGHTHOUSE, LOT 2 ENDEAVOUR DR, WOLLONGONG NSW 2500, AUSTRALIEN
>
3 GILRUTH AVE, THE GARDENS NT 0820, AUSTRALIEN
>
STUART HWY, WARUMUNGU NT 0852, AUSTRALIEN
>
GAP VIEW HOTEL, 123 GAP RD, THE GAP NT 0870, AUSTRALIEN
>
28 LONDON ST, PORT LINCOLN SA 5606, AUSTRALIEN
>
170 BUCHAN ST, BUNGALOW QLD 4870, AUSTRALIEN
>
27 PATTERSON WAY, EXMOUTH WA 6707, AUSTRALIEN
>
8 INVESTIGATOR CRES, ENCOUNTER BAY SA 5211, AUSTRALIEN
>
57 PROUDLOVE PARADE, ALBANY WA 6330, AUSTRALIEN
>
DALY WATERS, NT 0852, AUSTRALIEN
>
CAMERONS CORNER RD, BOLLARDS LAGOON SA 5731, AUSTRALIEN
>
UNNAMED ROAD, NEW MAPOON QLD 4876, AUSTRALIEN
>
3L QUEEN ST, BUSSELTON WA 6280, AUSTRALIEN
>
95 EASTERN BEACH RD, GEELONG VIC 3220, AUSTRALIEN
>
RESORT SHOPPING SQUARE, 201 YULARA DR, YULARA NT 0872, AUSTRALIEN
>
11 TINGIRA DR, O'SULLIVAN BEACH SA 5166, AUSTRALIEN
>
LOT 469 PURUNTATAMERI LN, WURRUMIYANGA NT 0822, AUSTRALIEN
>
41 BENSON RD, JERVIS BAY JBT 2540, AUSTRALIEN
>
64 SOUTH TERRACE, SMOKY BAY SA 5680, AUSTRALIEN