Environmental Atlas of the Lake Pontchartrain Basin

	Environmental Issues: Coastal Land Loss | Shoreline Change and Rates | Urbanization | Aggregate Dredge Holes | Dredge Pit Characterization | Bonnet Carre Diversion | Water Quality | Sediment Quality & Dispersal

Environmental Issues - Coastal Land Loss

• Pontchartrain Basin Land Loss - Description
• Existing and Predicted Land Loss Trends 1956-2050
• Pontchartrain Basin Land Loss - Morphology Classification
• Pontchartrain Basin Land Loss - Process Classification

Lake Pontchartrain Basin Land Loss - Process Classification

Erosion Submergence Direct Removal Natural Waves Alt. Hydro. Impoundment Oil/Gas Channels Navigation Waves Alt. Hydro. Oil/Gas Navigation Channels Channel Flow Alt. Hydro. Roads Drainage Channels Existing Alt. Hydro. Multiple Access Channels Land Natural Water Logging Borrow Pits Water Failed Land Reclamation     Out of Study Area Herbivory     Class Area Acres Percent Loss Erosion Natural Waves 55,603.34 29.52% Navigation Waves 3,138.79 1.67% Channel Flow 6,333.97 3.36% Subtotal 65,076.10 34.55% Submergence Alt. Hydro. Impoundment 4,480.04 2.38% Alt. Hydro. Oil/Gas 16,714.63 8.87% Alt. Hydro. Roads 4,766.56 2.53% Alt. Hydro. Multiple 54,513.86 28.94% Natural Water Logging 11,188.25 5.94% Failed Land Reclamation 7,091.13 3.76% Herbivory 560.55 0.30% Subtotal 99,315.02 52.73% Direct Removal Oil/Gas Channels 12,780.72 6.79% Navigation Channels 6,787.35 3.60% Drainage Channels 0.13 <0.01% Borrow Pits 3,116.54 1.65% Access Channels 1,279.79 0.68% Subtotal 23,964.52 12.72% Total 188,355.65 100.00%