It has a teardrop shape, oriented north–south, with the light station located at the westernmost part of the island.

The lantern light stands 17 feet (5.2 m) above its base, in an octagonal lanternhouse with a surrounding exterior gallery.

[4] The keeper's house is a 2+1⁄2-story L-shaped wood-frame structure, with a cross-gabled roof and wooden shingle exterior.

To the south of the tower stands the oil house, a small brock gable-roofed structure.

[4] The light station was authorized by Congress in 1895, following recommendations by the Lighthouse Board in 1892 that the Kennebec River's aids to navigation be improved.