Minot's Ledge Light, officially Minots Ledge Light, is a

lighthouse A lighthouse is a tower, building, or other type of physical structure designed to emit light from a system of lamps and lenses and to serve as a beacon for navigational aid, for maritime pilots at sea or on inland waterways. Lighthouses mar ...

Minots Ledge Minot's Ledge, also known as the Cohasset Rocks, is a reef off the harbor of Cohasset, Massachusetts, 15 miles (24 kilometers) southeast of Boston Boston (), officially the City of Boston, is the state capital and most populous city of ...

, one mile offshore of the towns of Cohasset and

Scituate, Massachusetts Scituate () is a seacoast town in Plymouth County, Massachusetts, United States, on the South Shore, midway between Boston and Plymouth. The population was 19,063 at the 2020 census. History The Wampanoag and their neighbors have inhabited ...

, to the southeast of

Boston Harbor Boston Harbor is a natural harbor and estuary of Massachusetts Bay, and is located adjacent to the city of Boston, Massachusetts. It is home to the Port of Boston, a major shipping facility in the northeastern United States. History Since ...

. It is a part of the Town of Cohassett, in Plymouth County. The current lighthouse is the second on the site, the first having been washed away in a storm after only a few months of use.

First lighthouse

In 1843, lighthouse inspector I. W. P. Lewis compiled a report on Minots Ledge, showing that more than 40 vessels had been lost due to striking the ledge from 1832 to 1841, with serious loss of life and damage to property. The most dramatic incident was the sinking of a shi
"St John" in October 1849
with ninety-nine Irish immigrants, who all drowned within sight of their new homeland. It was initially proposed to build a lighthouse similar to John Smeaton's pioneering

Eddystone Lighthouse The Eddystone Lighthouse is a lighthouse that is located on the dangerous Eddystone Rocks, south of Rame Head in Cornwall, England. The rocks are submerged below the surface of the sea and are composed of Precambrian gneiss. View at 1:50000 ...

, situated off the south-west coast of

England England is a country that is part of the United Kingdom. It shares land borders with Wales to its west and Scotland to its north. The Irish Sea lies northwest and the Celtic Sea to the southwest. It is separated from continental Europe b ...

. However Captain William H. Swift, put in charge of planning the tower, believed it impossible to build such a tower on the mostly submerged ledge. Instead he successfully argued for an iron pile light, a spidery structure drilled into the rock. The first Minot's Ledge Lighthouse was built between 1847 and 1850, and was lighted for the first time on January 1, 1850. One night in April 1851, the new lighthouse was struck by a major storm that caused damage throughout the Boston area. The following day only a few bent pilings were found on the rock. The two assistant keepers who had been tending the lighthouse at the time had died at their posts.

The current lighthouse

Until 1863 the design and construction of lighthouses was the responsibility of the

Corps of Topographical Engineers The U.S. Army Corps of Topographical Engineers was a branch of the United States Army authorized on 4 July 1838. It consisted only of officers who were handpicked from West Point and was used for mapping and the design and construction of federal ...

; this resulted in a rivalry with the longer-established Army Corps of Engineers, which built fortifications and had responsibility, as it does today, for waterway improvements. The

Chief Engineer A chief engineer, commonly referred to as "ChEng" or "Chief", is the most senior engine officer of an engine department on a ship, typically a merchant ship, and holds overall leadership and the responsibility of that department..Chief engineer's ...

of the Army Corps of Engineers, Joseph G. Totten, personally took charge of the project to design and construct a permanent lighthouse on Minot's Ledge. Totten's design was as simple as it was effective. With extensive experience building fortifications, Totten fully appreciated the permanency and strength of granite constructions. He designed the lighthouse so the first 40 feet of lighthouse would be a solid granite base weighing thousands of tons. To secure the lighthouse to the ledge, he had several massive iron pins emplaced so that the lighthouse would be literally pinned to the ledge by its own weight. Working on the ledge could take place only in conditions when it was exposed at low tide and the sea was calm, so construction took years. Work started on the current lighthouse in 1855, and it was completed and first lit on November 15, 1860. With a final cost of $300,000, it was the most expensive light house that was ever constructed in the United States to that date. The lighthouse is built of large and heavy dovetailed

granite Granite () is a coarse-grained (phaneritic) intrusive igneous rock composed mostly of quartz, alkali feldspar, and plagioclase. It forms from magma with a high content of silica and alkali metal oxides that slowly cools and solidifies undergro ...

blocks, which were cut and dressed ashore in Quincy and taken to the ledge by ship. The lighthouse was equipped with a third-order

Fresnel lens A Fresnel lens ( ; ; or ) is a type of composite compact lens developed by the French physicist Augustin-Jean Fresnel (1788–1827) for use in lighthouses. It has been called "the invention that saved a million ships." The design allows the c ...

. The light signal, a 1-4-3 flashing cycle adopted in 1894, is locally referred to as "I LOVE YOU" (1-4-3 being the number of letters in that phrase), and it is often cited as such by romantic couples within its range. Minots Ledge Light was automated in 1947.

Historical information

The following is taken from the Coast Guard Historian's website: Minot's Ledge Lighthouse keepers in 1940: George H. Fitzpatrick, Perc A. Evans, Patrick J. Bridy Minot's Ledge Lighthouse was designated as a

National Historic Civil Engineering Landmark __NOTOC__ The following is a list of Historic Civil Engineering Landmarks as designated by the American Society of Civil Engineers since it began the program in 1964. The designation is granted to projects, structures, and sites in the United State ...

by the

American Society of Civil Engineers American(s) may refer to: * American, something of, from, or related to the United States of America, commonly known as the "United States" or "America" ** Americans, citizens and nationals of the United States of America ** American ancestry, pe ...

in 1977. The light was added to the

National Register of Historic Places The National Register of Historic Places (NRHP) is the United States federal government's official list of districts, sites, buildings, structures and objects deemed worthy of preservation for their historical significance or "great artistic v ...

in 1987 as Minot's Ledge Light. It was put up for sale under the

National Historic Lighthouse Preservation Act The National Historic Lighthouse Preservation Act of 2000 (NHLPA; Public Law 106-355; 16 U.S.C. 470w-7) is American legislation creating a process for the transfer of federally owned lighthouses into private hands. It was created as an extension o ...

in 2009.

Nomenclature and location

Officially, it is Minots Ledge Light, but the National Register listing calls it Minot's Ledge Light. There is a replica of the top section of the lighthouse, located on the shores of Cohasset Harbor. The replica can be viewed just outside the Cohasset Sailing Club. The replica on shore is not a replica, but instead is made from the stone and steel remnants of the original upper portion of the lighthouse including the lamp chamber, which was wholly rebuilt in the late twentieth century, the copper dome is in fact a replica.. It is located about one mile off of the coast of Scituate Neck.

References

External links

''Minot's Ledge'' poem

Fitz-James O'Brien Fitz James O'Brien (also spelled Fitz-James; 25 October 1826 – 6 April 1862) was an Irish-American Civil War soldier, writer, and poet often cited as an early writer of science fiction. Biography O'Brien was born Michael O'Brien in Cork, Irela ...