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Cape Hinchinbrook Light facts for kids

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Cape Hinchinbrook Light
USCGCape Hinchinbrook.jpg
Cape Hinchinbrook Light
Cape Hinchinbrook Light is located in Alaska
Cape Hinchinbrook Light
Cape Hinchinbrook Light
Location in Alaska
Location Hinchinbrook Island
Prince William Sound
Alaska
United States
Coordinates 60°14′14″N 146°38′48″W / 60.23734°N 146.64665°W / 60.23734; -146.64665
Year first constructed 1910 (first)
Year first lit 1934 (current)
Automated 1974
Foundation concrete and rock
Construction reinforced concrete tower
Tower shape octagonal tower with lantern
Markings / pattern art deco architecture
white tower, black lantern
Height 67 feet (20 m)
Focal height 237 feet (72 m)
Original lens Third order Fresnel lens (Now on display)
Current lens Vega lens
Range 19 nautical miles (35 km; 22 mi)
Characteristic Fl W 15s.
obscured from 134° to 135° and 138° to 283°
emergency light, Fl W 6s. of reduced intensity if main light is extinguished.
Admiralty number G6592
ARLHS number ALK-002
USCG number 6-1125

The Cape Hinchinbrook Light is a lighthouse located near the southern end of Hinchinbrook Island adjacent to Prince William Sound, in Alaska, United States.

History

Cape Hinchinbrook, Alaska, Lightstation, 1948 - NARA - 298198
Cape Hinchinbrook Lightstation, 1948

The Cape Hinchinbrook Lighthouse was first established in 1910 to mark the entrance to Prince William Sound. Congress authorized the construction of a lighthouse at this point in 1906 appropriating $125,000 for its construction. However, the full amount was not authorized in one lump sum. The money was appropriated over a number of years with $25,000 in 1906, $50,000 in 1907 and the rest in 1908. As a result, construction did not begin until 1909. In the winter of 1909 a temporary fixed white light was established on the second story of the building under construction. Due to the earthquakes in 1927 and 1928, which caused instability in the cliff around the lighthouse, it was felt a new light should be built on solid rock. The new 67-foot (20 m) octagonal tower was completed in 1934. The lighthouse was automated in 1974 and a solar-powered Vega lens was installed. The original third order Fresnel lens is on display at the Valdez Museum and Historical Archive in Valdez, Alaska.

It was listed on the National Register of Historic Places as Cape Hinchinbrook Light Station in 2005. The listing was for a historic district including two contributing buildings, three contributing structure, one contributing site, and three contributing objects.

Climate

Climate data for Cape Hinchinbrook Light, Alaska
Month Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Year
Record high °F (°C) 54
(12.2)
50
(10)
47
(8.3)
63
(17.2)
68
(20)
81
(27.2)
81
(27.2)
76
(24.4)
72
(22.2)
64
(17.8)
52
(11.1)
55
(12.8)
81
(-17.8)
Average high °F (°C) 33.3
(0.72)
35.4
(1.89)
36.1
(2.28)
41.3
(5.17)
47.4
(8.56)
54.7
(12.61)
58.3
(14.61)
58.4
(14.67)
53.9
(12.17)
45.8
(7.67)
39.6
(4.22)
35.3
(1.83)
44.96
(7.199)
Daily mean °F (°C) 29.8
(-1.22)
32.1
(0.06)
32.3
(0.17)
37.5
(3.06)
43.4
(6.33)
50.1
(10.06)
54.3
(12.39)
54.8
(12.67)
50.2
(10.11)
42.2
(5.67)
36.3
(2.39)
32.0
(0)
41.25
(5.139)
Average low °F (°C) 26.2
(-3.22)
28.7
(-1.83)
28.5
(-1.94)
33.6
(0.89)
39.3
(4.06)
45.4
(7.44)
50.3
(10.17)
51.1
(10.61)
46.5
(8.06)
38.5
(3.61)
33.0
(0.56)
28.6
(-1.89)
37.48
(3.042)
Record low °F (°C) -2
(-18.9)
1
(-17.2)
4
(-15.6)
18
(-7.8)
22
(-5.6)
22
(-5.6)
36
(2.2)
40
(4.4)
30
(-1.1)
24
(-4.4)
8
(-13.3)
1
(-17.2)
-2
(-17.8)
Precipitation inches (mm) 5.65
(143.5)
5.46
(138.7)
4.50
(114.3)
6.31
(160.3)
8.40
(213.4)
4.56
(115.8)
7.70
(195.6)
9.12
(231.6)
12.86
(326.6)
11.37
(288.8)
7.37
(187.2)
8.36
(212.3)
91.66
(2,328.2)
Snowfall inches (cm) 16.9
(42.9)
18.9
(48)
18.4
(46.7)
9.7
(24.6)
0.5
(1.3)
0.0
(0)
0.0
(0)
0.0
(0)
0.0
(0)
3.7
(9.4)
9.5
(24.1)
16.0
(40.6)
93.6
(237.7)
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