Grassy Lake (Louisiana)

Grassy Lake is 1,024 acres (414 ha), a natural lake, and is located in St. Martin and Assumption, Parishes, Louisiana. The 246,000 acres (1,000 km2) of watershed includes Lake Verret, Lake Palourde, all draining into the Atchafalaya River, and finally the Gulf of Mexico. Grassy Lake is almost entirely in St. Martin Parish but Assumption Parish runs along the east side, just west of the shoreline.

Grassy Lake
Location of Grassy Lake in Louisiana, USA.
Location of Grassy Lake in Louisiana, USA.
Grassy Lake
Location of Grassy Lake in Louisiana, USA.
Location of Grassy Lake in Louisiana, USA.
Grassy Lake
LocationSt. Martin and Assumption, Parishes, Louisiana, US
Coordinates29°46′40″N 91°06′37″W[1]
TypeNatural lake
Basin countriesUnited States (Watershed HUC 8080101)
Surface area414 ha (1,024 acres)
Average depth1.8 m (6 ft)
Max. depth2.7 m (9 ft)
Shore length112.400 km (7.705 mi)
Surface elevation0 m (0 ft)[2]
SettlementsMorgan City
1 Shore length is not a well-defined measure.

History

At the turn of the century, late eighteenth to early twentieth, transportation to market of the crops, especially sugar cane, of the big plantation owners was a challenge. When water levels were high boats could travel on the bayous, lakes, canals, and rivers. Movement on some waterways would require assistance from teams of oxen. Levees would have a cordelle road built so the teams could pull the boats.[3] One way of transporting goods was by the approximately ten miles Attakapas Canal connecting Bayou Lafourche at Napoleonville to Lake Verret.[4] Access to the Atchafalya could then be from Lake Verret, Fourmile Bayou, Grassy Lake, through Simon or Persimmon passes, and Lake Palourde.[5]

Operation Dry Water

A program started in 2009 between the Louisiana Department of Wildlife and Fisheries (LDWF), National Association of State Boating Law Administrators (NASBLA), and the U.S. Coast Guard, as part of a national campaign,[6] resulted in DUI boating charges (also called BWI[7]) in 2017 on five Louisiana waterways including Grassy Lake.[8]

Vegetation

The LDWF conducted a survey for the presence of aquatic vegetation on October 11, 2005, and again on September 21, 2006. The water was considered fairly clear with no submerged aquatic vegetation. Occurrence of invasive species common salvinia, common water hyacinth, water lettuce, alligator weed, water-primrose, Duck Potato (arrowhead), as well as cutgrass that has benefits but can become a nuisance.[9]

References
  1. Google maps coordinates- Retrieved 2017-11-22
  2. U.S. Geological Survey Geographic Names Information System: Grassy Lake (Louisiana)
  3. Cordelle road: A general digest of the acts of the legislature of Louisiana by Louis Moreau Lislet (pp.543)- Retrieved 2017-11-25
  4. Attakapas Canal: Louisiana as it is: A Geographical and Topographical Description of the State (By Samuel Henry Lockett, pp. 132)- Retrieved 2017-11-25
  5. Water transportation through Grassy Lake: Steamboats on Louisiana's Bayous: A History and Directory (by Carl A. Brasseaux, Keith P. Fontenot, pp 20)- Retrieved 2017-11-25
  6. National: Operation Dry Water Archived 2017-12-01 at the Wayback Machine- Retrieved 2017-11-25
  7. Louisiana's Boating While Intoxicated Laws Archived 2017-12-01 at the Wayback Machine- Retrieved 2017-11-25
  8. Louisiana: Operation Dry Water- Retrieved 2017-11-25
  9. LDWF: Office of Fisheries and Inland Fisheries section; Aquatic Vegetation Type Maps and Narratives-Retrieved 2017-11-25
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