 The Lynde Point Light or Lynde Point Lighthouse , also known as Saybrook Inner Lighthouse , is a lighthouse in Connecticut , United States , on the west side of the mouth of the Connecticut River on the Long Island Sound , Old Saybrook , Connecticut . The first light was a 35 feet ( 11 m ) wooden tower constructed by Abisha Woodward for $ 2 @,@ 200 and it was completed in 1803 . A new lighthouse was eventually needed and a total of $ 7 @,@ 500 was appropriated on July 7 , 1838 . Jonathan Scranton , Volney Pierce , and John Wilcox were contracted to build the new 65 @-@ foot ( 20 m ) octagonal brownstone tower . It was constructed in 1838 and lit in 1839 . The lighthouse was renovated in 1867 and had its keeper 's house from 1833 replaced in 1858 with a Gothic Revival gambrel @-@ roofed wood @-@ frame house . In 1966 , the house was torn down and replaced by a duplex house . The original ten lamps were replaced in 1852 with a fourth @-@ order Fresnel lens , and with a fifth @-@ order Fresnel lens in 1890 . Lynde Point Lighthouse used whale oil until 1879 when it switched to kerosene . It was electrified in 1955 and fully automated by the United States Coast Guard in 1978 . In 1990 , it was added to the National Register of Historic Places and is significant for its " superior stone work in the tapering brownstone walls " . 
