The lake is 40 miles (64 km) long and 25 miles (40 km) wide at its widest point, with an area of 630 square miles (1,631 square km) and a mean depth of 10 to 16 feet (3 to 5 metres). Trout need quality salt water to float their eggs for reproduction and Lake Pontchartrain simply can not consistently hold the correct amounts of salt during these months. The confluence of fresh and salt water in Lake Pontchartrain makes it a water body where fresh water and marine species can thrive, including speckled trout, redfish and bull sharks. It is the second largest salt lake in the United States. But according to the Lake Pontchartrain Basin Foundation, the salinity is surged upwards of 10 PPT (Parts Per Thousand) in the month of August. A mixture (fresh & salt) would be an estuary, which is not a lake. It is more a tidal lagoon than a lake, since it connects Lake Pontchartrain, lake, southeastern Louisiana, U.S. Salinity, water, unfiltered, parts per thousand Most recent instantaneous value: 2.2 02-22-2021 19:30 CST Add up to 2 more sites and replot for "Salinity, water, unfiltered, parts per thousand" It covers 630 square miles, serves six Louisiana parishes and 1.5 million people. Salty water during the months of April through October is essential to habitat quality trout during there annual spawn. Is Lake Pontchartrain salt water or fresh water? Printer-friendly format Email this thread to a friend Bookmark this thread: This topic is archived. There is no place to stop along the way and nothing really to see unless you are traveling it during sunrise or sunset. And because of the ebb and flow of the salinity levels in the lake, the temperature and turbidity, very few species are full-time residents. Lake Pontchartrain depth map (nautical chart) The depth map shows marine charts of Lake Pontchartrain, which is located in Louisiana. n/t. So what caused the lake to start loosing salt you may ask? The second largest salt lake in the United States and 11th among all the lakes in the country. Though classified as a lake, Lake Pontchartrain is technically an estuary that connects to the Gulf of Mexico. Conventional wisdom would have you believe that the salinity in Lake Pontchartrain has taken a hit due to the west winds that have plagued the area this past summer. Lake Pontchartrain is technically an estuary and not a lake. You can also use the program of our partners. “Mostly because of the storms pushed the salt water, and the white shrimp like the freshwater so they run all the way up to Lake Maurepas,” Newton said. At over 40 miles wide, Lake Pontchartrain is the second largest inland saltwater body in the United States. If my Geology 101 from 17 years ago serves me correctly. It has 4,838,400 acre·ft or 1576599544396.8 gallons. The causeway or bridge that cuts across lake pontchartrain is the longest bridge in the world across a body of water (continuously) at nearly 24 miles in length. So that makes it a bucket list item. Home » Discuss » Archives » General Discussion (Through 2005) Auntie Bush (1000+ posts) Send PM | … The nautical chart is free for use. And, an estuary would be formed from an outflow of fresh water from inland meeting with the saltwater near the sea. OUR HABITAT. The Lake also exchanges water with the Gulf of Mexico through the Rigolets and Chef Mentuer Passes. This connection to the salt waters of the Gulf makes the Lake an estuarine system - one of the largest in the nation.
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