Top Width given Section Factors evaluator uses Top Width = (Wetted Surface Area of Channel^3)/(Section Factor^2) to evaluate the Top Width, The Top Width given Section Factors is defined as top length measured in the direction perpendicular to the flow. Top Width is denoted by T symbol.
How to evaluate Top Width given Section Factors using this online evaluator? To use this online evaluator for Top Width given Section Factors, enter Wetted Surface Area of Channel (A) & Section Factor (Z) and hit the calculate button.