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Volume Calculations
OSI is well-versed in sediment and water volume calculation methods and applications. We have broad experience analyzing volume differences for dredge payment reports, creating time series difference maps to highlight sediment erosion and deposition, and calculating siltation rates in reservoirs as a function of reservoir age.

Volume Calculations Fig. 1
Example of reservoir volume draw down curve at 1 foot elevation change interval.

Volume Calculations Fig. 2
Example of "average end area" statistics for one contributing cross section used in the volume calculation.