The Rigolets
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Rigolets is a 12.9 kilometer (8 mi) long deepwater
strait A strait is an oceanic landform connecting two seas or two other large areas of water. The surface water generally flows at the same elevation on both sides and through the strait in either direction. Most commonly, it is a narrow ocean channe ...
in
Louisiana Louisiana , group=pronunciation (French: ''La Louisiane'') is a state in the Deep South and South Central regions of the United States. It is the 20th-smallest by area and the 25th most populous of the 50 U.S. states. Louisiana is borde ...
. "Rigolets" comes from the word ''rigole'', French for 'trench' or 'gutter'. The name is now locally pronounced "RIG-uh-leez". The strait begins at and follows a generally eastward course to
Lake Borgne Lake Borgne (french: Lac Borgne, es, Lago Borgne) is a lagoon of the Gulf of Mexico in southeastern Louisiana. Although early maps show it as a lake surrounded by land, coastal erosion has made it an arm of the Gulf of Mexico. Its name comes fro ...
, a lagoon in the
Gulf of Mexico The Gulf of Mexico ( es, Golfo de México) is an oceanic basin, ocean basin and a marginal sea of the Atlantic Ocean, largely surrounded by the North American continent. It is bounded on the northeast, north and northwest by the Gulf Coast of ...
, and finally to the Gulf of Mexico, where it ends at . Along with nearby
Chef Menteur Pass The Chef Menteur Pass is a narrow natural waterway which, along with the Rigolets, connects Lake Pontchartrain and Lake Borgne in New Orleans, Louisiana. It begins at and follows a generally southeastward course. In the days of sailing ships, mu ...
, the Rigolets connects
Lake Pontchartrain Lake Pontchartrain ( ) is an estuary located in southeastern Louisiana in the United States. It covers an area of with an average depth of . Some shipping channels are kept deeper through dredging. It is roughly oval in shape, about from west ...
and Lake St. Catherine in Louisiana to Lake Borgne, and then to the Gulf of Mexico. It forms the boundary between
New Orleans New Orleans ( , ,New Orleans
Merriam-Webster.
; french: La Nouvelle-Orléans , es, Nuev ...
(Orleans Parish) and
St. Tammany Parish St. Tammany Parish (french: Paroisse de Saint-Tammany) is a parish located in the U.S. state of Louisiana named after Tamanend, the legendary Lenape Chief of Chiefs and the "Patron Saint of America." At the 2020 census, the population was 2 ...
.


Tidal pass

As a deepwater tidal pass, the Rigolets helps supply salt water from the Gulf to Lake Pontchartrain. Tidal scouring has produced a deep pit in the lake at the western mouth of the strait. Since the Rigolets is a channel through which Gulf
storm surge A storm surge, storm flood, tidal surge, or storm tide is a coastal flood or tsunami-like phenomenon of rising water commonly associated with low-pressure weather systems, such as cyclones. It is measured as the rise in water level above the n ...
s can approach the New Orleans area, there have been proposals to construct
floodgate Floodgates, also called stop gates, are adjustable gates used to control water flow in flood barriers, reservoir, river, stream, or levee systems. They may be designed to set spillway crest heights in dams, to adjust flow rates in sluices and c ...
s to try to protect the city, especially since the destructiveness of hurricanes in the early 21st century.


Fort Pike

The United States constructed Fort Pike following the
War of 1812 The War of 1812 (18 June 1812 – 17 February 1815) was fought by the United States of America and its indigenous allies against the United Kingdom and its allies in British North America, with limited participation by Spain in Florida. It bega ...
to protect passage on the Rigolets. The fort was abandoned in 1890 when it was no longer considered necessary.


Bridges

The Rigolets is spanned by two bridges. The western terminus of the
U.S. Route 90 U.S. Route 90 or U.S. Highway 90 (US 90) is an east–west major United States highway in the Southern United States. Despite the "0" in its route number, US 90 never was a full coast-to-coast route. With the exception of a short-lived ...
Rigolets Bridge is located immediately north of Fort Pike. It was damaged by
Hurricane Katrina Hurricane Katrina was a destructive Category 5 Atlantic hurricane that caused over 1,800 fatalities and $125 billion in damage in late August 2005, especially in the city of New Orleans and the surrounding areas. It was at the time the cost ...
in August 2005, and required major repairs. Farther south,
CSX Transportation CSX Transportation , known colloquially as simply CSX, is a Class I freight railroad operating in the Eastern United States and the Canadian provinces of Ontario and Quebec. The railroad operates approximately 21,000 route miles () of track. ...
crosses the Rigolets on a 1,388-meter (4,555-ft) railroad bridge. Hurricane damage there from Katrina included shifted spans and the loss of timber decking.


References

{{reflist Bodies of water of Louisiana Landforms of Orleans Parish, Louisiana Landforms of St. Tammany Parish, Louisiana Straits of the United States Straits of the Caribbean