Doubling Point Range Lights (Kennebec River Range Lights)
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Location: Arrowsic Island, Kennebec River.
Coordinates: 43 53 00 N 69 47 42 W
Active U.S. Coast Guard aids to navigation. Maintained by: Range Light Keepers. Accessibility: There is limited parking at the station. For information on visiting the station, contact Range Light Keepers.
Station established: 1898
Present lighthouse towers built: 1898
Construction materials: Wood
Other buildings still standing: 1898 keeper's house, 1898 fuel house, 1901 boathouse, 1902 oil house
Height of towers: Front range - 21 feet; Rear range - 13 feet
Height of focal plane: Front range - 18 feet; Rear range - 33 feet
Original optics: Fifth-order Fresnel lenses
Present optics: 250 mm
Characteristic: Front range - Quick white flash Rear range - Three seconds white alternating with three seconds darkness
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