Supplemental information for "Calibration of V-Notch and Compound Weirs for Subsurface Drainage Water Level Control Structures"

The supplemental information includes derivation of a compound weir equation for a V-notch weir below a rectangular weir, two tables with calibration parameters for V-notch weirs and rectangular weirs used in Agri Drain inline control structures, respectively, and a table consisting of the specification of Agri Drain structures bases on their size.