Lateral Stream Migration:: Change in position of a channel by lateral erosion of one bank and simultaneous deposition on the opposite bank.
Levee:: A man-made structure, usually an earthen embankment often reinforced with soil cement, that is designed to contain or divert the flow of water.
LOMA (Letter of Map Amendment):: An official amendment of a current Flood Insurance Rate Map (FIRM) accepted by FEMA for a property or a structure. The LOMA verifies that the structure or portions of the property have been removed from a designated-floodplain area.
LOMR (Letter of Map Revision):: An official revision of a current Flood Insurance Rate Map (FIRM) accepted by FEMA, which reflects changes in mapped areas for flood zones, floodplain areas, floodways and flood elevations.
Low Flow Channel:: A channel within a larger channel which typically carries low and/or normal flows

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