411 REFERENCE · Wiktionary
Flood Rock
Reference material by Wiktionary contributors. This retains its source identity and is not 411 news reporting.
English
Proper noun
Flood Rock
en historical en islet/and/reef r/New York City s/New York State c/USA in strait/Hell Gate channel/East River r/New York Harbor at the narrow end of sound/Long Island Sound; a former rocky islet and rock reef that was destroyed in 1885 to clear the channel of this navigation hazard, that was mostly submerged at high tide, becoming a 9-acre island at low tide.
Further reading
removal of Hell Gate rocks