fleet.wikisort.org - Lighthouse

The Matiu / Somes Island lighthouse is a harbour navigation light located on Matiu /Somes Island in Wellington Harbour, New Zealand. It is a sector light, marking a safe approach through the harbour channel. The first lighthouse on the site was established in 1866. It was the first inner harbour lighthouse in New Zealand, and one of only eight lighthouses nationwide at that time. However, by 1895 there were multiple complaints that it was inadequate. A replacement lighthouse with a more powerful light was built on an adjacent site and commissioned on 21 February 1900. The light was automated on 1 April 1924 and converted to electricity after 1945.

Matiu / Somes Island Lighthouse

Location	Matiu / Somes Island, Wellington Region, New Zealand
Coordinates	41°15′35″S 174°51′49″E
Tower
Constructed	1900
Construction	brick (tower)
Automated	1924
Height	9 m (30 ft)
Shape	round
Operator	Wellington Harbour Board
Light
First lit	21 February 1900
Focal height	29 m (95 ft)
Lens	second order Fresnel lens
Range	7 nmi (13 km; 8.1 mi)
Characteristic	LFl(3) WRG 10s
Original lighthouse
Constructed	1866
Construction	cast iron (tower), brick (foundation)
Height	10 ft (3.0 m)
Shape	octagon
Power source	colza oil, kerosene
First lit	17 February 1866
Lens	fourth order Fresnel lens

The first lighthouse

A signal station was established on Somes Island around 1840, but it was not until 1866 that the first lighthouse on the site was erected to aid safe navigation in the harbour.[1] The lighthouse was built upon an octagonal cast iron tower, 10 feet (3.0 m) high, bolted to a brick foundation. The lantern contained a fourth order Fresnel lens, and had a 270 degree illumination angle. The lighthouse served as a sector light, marking a safe approach through the harbour channel, and was fitted with ruby and green glass screens either side of a white beam directed down the channel. The light was first lit on 17 February 1866.[2] The lamp initially burned colza oil until it was converted to kerosene in 1878.[3]

When commissioned it was the first inner harbour lighthouse in New Zealand, and one of only eight lighthouses nationwide at that time.[3]

By 1895 there were complaints to the Marine Department that the Somes Island light was inadequate.[4][5] A decision was made to upgrade the Somes Island light from a fourth order to a second order, and a replacement lighthouse apparatus was ordered in 1898.[2]

The original lighthouse was dismantled in 1900[6] and was later re-installed at Tuhawaiki (Jack's) Point Timaru.[2]

Replacement in 1900

The replacement lighthouse was built on a circular brick tower adjacent to the existing lighthouse.[3] The design made use of the lantern that had become available from the decommissioning in 1897 of the first Farewell Spit lighthouse.[7] The new Somes Island lighthouse was commissioned on 21 February 1900.[2]

The lighthouse was automated on 1 April 1924 with the installation of a flashing Dalén light supplied by the AGA company. The light used an acetylene burning lamp combined with a solar sensor which automatically operates the light only during darkness.[1][8] It was converted to an electrical light after 1945.[2]

Lighthouse operations

The operation of the lighthouse was initially the responsibility of the Wellington Provincial Government.

The first lighthouse keepers were William Lyall (Principal keeper) and David Susan.[8]

In 1912, the management of the station was transferred from the Marine Department to the Wellington Harbour Board, although the Marine Department continued to maintain the light and charge costs to the Board.[9]

References

External links

• Media related to Somes Island Lighthouse at Wikimedia Commons
• 1886 Lighthouse on Somes Island, Wellington photo at the Alexander Turnbull Library

---