Lateral weirs and gated spillways Lateral weirs and gated spillways allow the user to remove flow from the main river through gated structures or uncontrolled over flow weirs. Lateral weirs and gated spillways can be connected to a storage area or another river reach. This option allows the user to enter elevation vs. flow rating curve for flow leaving the main river. A lateral rating curve can be used to send flow to another reach or the flow can just leave the system without being connected to something else. They are often used to model off channel storage or an area behind a levee.
Hydraulic connections consist of a weir, culverts and a weir, or gated spillways and a weir.
This editor allows the user to reduce the number of points in a cross section by using a near point filter and a collinear line filter. The near point filter allows the user to set a vertical and horizontal tolerance. If two points are within both the vertical and horizontal tolerance, then the second point is removed. A collinear line filter allows the user to enter a vertical distance tolerance and a slope tolerance. The program takes three points in a row, puts a straight line through the first and third, then checks to see the vertical distance between the line and the second point.