Volume for underground detention basins is computed using which method?

Question

Quizplus · Accepted Answer

The average end-area method is the most suitable method for calculating the volume of underground detention basins as it takes into account the variable cross-sectional area of the basin at different elevations. The elevation-area method is more commonly used for open channels, the end-area elevation method is used for irregularly shaped cross-sections, and the average method is not specific enough for accurately calculating the volume of an underground detention basin.

Volume for Underground Detention Basins Is Computed Using Which Method