TOP OF DAM

954.5 m

FLOOD CONTROL ZONE

953.5 m

Induces surcharge

Release water from Spillway using defined release discharge

Forces flood flows over the spillway

CONSERVATION ZONE

Varies between 954 and 953.5 m

This is the range of the guide curve elevation. Calculation is done in Excel

Bokaa IF Functions

ELSE IF Bokaa Dam Pool >953.5

Maximum release of 1.5 cms

Spillways open

ELSE IF Bokaa Dam Pool >948 and <954 m

Normal release of 0.13 cms

Spillways closed

Controlled outlet open

IF Bokaa Dam pool ≤ 948 m

Maximum Release of 0 cms

Spillways are closed

Controlled outlet closed

INACTIVE ZONE

948 m

Dead storage, no releases below this elevation