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Rigolets
The Rigolets is a 12.9 kilometer (8 mi) long strait in Louisiana. "Rigolets" comes from the word ''rigole'', French for "trench" or "gutter." The name is now locally pronounced "RIG-uh-leez." It begins at and follows a generally eastward course to Lake Borgne, a lagoon in the Gulf of Mexico, and finally to the Gulf of Mexico, where it ends at . Along with nearby Chef Menteur Pass, the Rigolets connects Lake Pontchartrain and Lake St. Catherine to Lake Borgne, and then to the Gulf of Mexico.〔 〕 It forms the boundary between New Orleans (Orleans Parish) and St. Tammany Parish.
==Tidal pass==
As a deepwater tidal pass, the Rigolets helps supply salt water from the Gulf to Lake Pontchartrain.〔(【引用サイトリンク】 work=Wetland Education through Maps and Aerial Photography )〕 Tidal scouring has produced a deep pit in the lake at the western mouth of the strait.〔(【引用サイトリンク】 work=Environmental Atlas of the Lake Pontchartrain Basin )〕 Since the Rigolets is a channel through which Gulf storm surges can approach the New Orleans area, there are proposals to construct floodgates.〔(【引用サイトリンク】 work=Louisiana Dept. of Natural Resources )〕
抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』
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