Petersburg Borough Lighthouse Lighthouse
Location & Light Range
About Petersburg Borough Lighthouse Lighthouse
This reinforced concrete lighthouse, built in 1935, features a square cylindrical tower that stands 20.5 meters tall. The tower, painted white, is centered on the roof of a single-story keeper's house, with a black lantern topping the structure. Its white light emits two flashes every 10 seconds, visible for 14.2 nautical miles. The station was first established in 1902. The site is open to the public, but access to the tower is restricted. In 2011, it began serving as a summer base for whale researchers.
Why it matters: The lighthouse marks the entrance to Stephens Passage, a significant waterway for navigating the southern approach to Juneau.
Light & Optic
- Flash Type
- Flashing
- Light Color
- White
- Interval
- 10s
- Raw Code
- Fl W 10s
- Focal Height
- 24.5m
- Geographic Range
- 14.2NM
Construction & History
- Year Built
- 1935
- First Lit
- 1902
- Heritage Status
- National Register of Historic Places 2004
Significant events: station established 1902, 1999 grant for visitor access, 2004 ownership transferred to preservation group, 2004 added to National Register of Historic Places, 2011 became summer base for whale researchers, 2020 group reorganized as Five Finger Lighthouse Society
Visiting
- Open to public
- Site open, tower closed
Nearby Vessels
Tower & Structure
- Tower Height
- 20.5m
- Tower Shape
- square cylindrical
- Tower Color
- black
- Material
- reinforced concrete
Structure: A 20.5m square cylindrical reinforced concrete tower with lantern, centered on the roof of a square 1-story concrete keeper's house. The tower is white concrete, and the lantern is painted black.
Location
- Country
- 🇺🇸United States
- Region
- Alaska
- Sea Region
- small island in the entrance to the Stephens Passage on the southern approach to Juneau and about 40 mi (65 km) north northwest of Petersburg
- Latitude
- 57.2712°
- Longitude
- -133.6298°
References & Identifiers
- Nearest Port
- Kake(21.0 km)
- Admiralty No.
- G6432
- USCG No.
- 6-23280
- ARLHS No.
- ALK-007
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