North Reef Light

Its construction is unique, having a hollow concrete base that both gives it resistance to the shifting nature of the sandbar and serves as a freshwater tank.

A hollow base would be formed by pouring concrete into the cylinder, which would also serve as a freshwater tank, and a residence surrounding it.

The location is remote, the quarters cramped, and the shifting sands sometimes left the lighthouse surrounded by water.

[7] The apparatus is a VRB-25, rotating at 2 rpm, and the light source is a 12 Volt 35 Watt Halogen lamp with an intensity of 35,050 cd.

[5] The tower is 18 metres (59 ft) from the base to the lantern,[6] conical in shape, with four intermediate floor levels.

[5] It is built of an internal timber frame, clad with galvanised wrought iron plates,[8] painted white.

[9] On top of the tower is a Chance Brothers 10 feet 9 inches (3.28 m) diameter lantern, housing the VRB-25 beacon.

Plan of the lighthouse, 1876
floor plans, note the plan of the keepers' residence
A 1949 photo of the lighthouse