| 词条 | Ram Island Ledge Light |
| 释义 |
| image_name = Ram Island Ledge Light.jpg | caption = Ram Island Ledge Light | location = Portland Harbor, Casco bay | yearbuilt = 1905 | yearlit = 1905 | automated = 1959 | yeardeactivated = | foundation = Natural/emplaced | construction = Granite blocks | shape = conical | marking = Natural (light gray) with black lantern | focalheight = {{convert|77|ft}} | elevation = | coordinates = {{coord|43|37|53.3|N|70|11|14.5|W|region:US_type:landmark|display=inline,title}} | pushpin_map = Maine | pushpin = lighthouse | lens = Third order Fresnel lens | currentlens = | intensity = | range = {{convert|8|nmi}} | characteristic = Flashing (2) White 6s | fogsignal = HORN: 1 every 10s[1][2] | module = {{Infobox NRHP | embed = yes | name = Ram Island Ledge Light Station | nrhp_type = | image = | caption = | nearest_city= Cape Elizabeth, Maine | area = | architect = US Army Corps of Engineers | architecture = | added = March 14, 1988 | governing_body = DEPARTMENT OF TRANSPORTATION | mpsub = Light Stations of Maine MPS | refnum = 88000157[3] }} }} Ram Island Ledge Light is a lighthouse in Casco Bay, Maine, United States, marking the northern end of the main channel leading the harbor of Portland, Maine. HistoryThe Ram Island Ledges are a series of stone ledges, some of which break the waters at the southern end of Casco Bay, a short way south of Cushing Island. In 1855 an iron spindle was erected to protect sailors from these dangerous underwater ledges. The ledge continued to be the site of repeated shipwrecks. On February 24, 1900 the Allan Line steamship Californian (formerly named the State of California) ran aground on the ledge while en route from Portland to Glasgow, Scotland via Halifax, Nova Scotia. As a result of that accident, the United States Congress appropriated funds to build a lighthouse. Construction began on May 1, 1903 and was completed in 1905. It is a twin of the Graves Light off Boston. The lighthouse was built of granite quarried from Vinalhaven, Maine. The lighthouse originally included a third-order Fresnel lens. The lighthouse was electrified in 1958, and then automated in 1959. The light was converted to solar power in January 2001. The Ram Island Ledge Light was added to the National Register of Historic Places as Ram Island Ledge Light Station on March 14, 1988, reference number 88000157.[3] In July 2010, Ram Island Ledge Light was put up for sale to the general public. The minimum bid was $10,000.[4] The property had initially been made available at no charge to other government agencies, educational institutions, and non-profit organizations, but no interest was shown, so bids were opened to the general public. The winning bid, $190,000, came from a Windham surgeon.[5] {{Gallery|mode=packed|Image:Ram-island-ledge-light.jpg|Ram Island Ledge Light |File:Portland Head Lighthouse Ocean Horizontal.JPG|The Ram Island Ledge Light is visible from the Portland Head Light }} See also{{stack|{{commons category|Ram Island Ledge Light}}}}
References1. ^{{cite uscghist|ME}} {{Lighthouses of Maine}}{{National Register of Historic Places}}2. ^{{cite book|title=Light List, Volume I, Atlantic Coast, St. Croix River, Maine to Shrewsbury River, New Jersey|author=United States Coast Guard|year=2009|page=62}} 3. ^1 {{NRISref|2009a}} 4. ^{{cite news|last=Anderson|first=Amy|title=Ram Island Ledge light off Cape Elizabeth for sale, in need of care|url=http://www.theforecaster.net/content/s-ceramislandlight-072310|accessdate=27 July 2010|newspaper=The Forecaster|date=22 July 2010}} 5. ^{{cite news|last=Maxwell|first=Trevor|title=Still in the dark about Ram Island Ledge Light|url=http://www.pressherald.com/news/still-in-the-dark-about-ram-island-ledge-light_2011-06-20.html|accessdate=20 June 2011|newspaper=Portland Press Herald|date=20 June 2011}} 5 : Lighthouses completed in 1905|Towers completed in 1905|Lighthouses in Cumberland County, Maine|Lighthouses on the National Register of Historic Places in Maine|National Register of Historic Places in Portland, Maine |
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