Environmental Atlas of the Lake Pontchartrain Basin

	Basin Geology: Geology | Quarternary Framework | Geomorphology | Bathymetry | Geologic Resources

Basin Geology - Geomorphology

• Shoreline Types of the Lake Pontchartrain Basin - Summary
• Shoreline Types
  • Lake Maurepas
  • Pass Manchac
  • Lake Pontchartrain - Southwest Shore
  • Lake Pontchartrain - Southeast Shore
  • Lake Pontchartrain - North Shore
  • Lake Borgne

Figure 41: Location map for Pass Manchac.

Legend Riprap Armor Embankment or revetment along a shoreline reinforced by things thrown together without order in the form of broken concrete, concrete blocks, old pilings, rubble, etc. to resist erosion. Bulkhead A wood, steel, or concrete wall along a waterfront. Can be adjacent to the land as a retaining wall or separate from it as a seawall to provide wave protection and resist erosion. Swamp Any forested area normally subject to inundation through part of the growing season or with permanent or near-permanent standing water. Fresh Marsh Any unforested, vegetated area normally subject to inundation or tidal action at any time sufficient to support wetland-dependent, emergent vegetation with salinity less than 0.5 ppt. Swamp with Fresh Marsh An area of swamp at the shoreline that contains a fresh marsh (salinity less than 0.5 ppt) behind the shoreline. Bank Natural riverine or lacustrine bank with grass and trees.

Figure 42: Shoreline types of pass Manchac. Based on Summer 1996 aerial video survey. (Click on a letter to see a photograph of the shoreline.)