The reservoir is essentially a run-of-river type without regulating storage other than for incidental flood control through surcharge operation, and for pondage for power generation and lockages; hence, low water flow of the river will be increased only indirectly through the use and passage of discharges from upstream plants.

Such releases, however, result in a more sufficient and higher quality of water for domestic and industrial consumption and use are effective in pollution abatement downstream.

Due to the fairly constant level maintained under normal operating conditions, the reservoir is well suited for conservation and recreational purposes.

During periods of high stream flow, the spillway gates are opened to pass the water in excess of the capacity of the turbines, and as necessary for retention and regulation of floodwaters through surcharge operation.

The river upstream finally stopped rising on Sunday night with the reservoir approximately one foot below the top of the dam.