On May 24, 1923, the reservoir filled for the first time.

Beginning in 1994, the reservoir filled and the power station was operational by 1995.

The reservoir had filled by 1985 and the first generator was operational in 1986.

The reservoir filled quickly and was full by October 1987.

This means that, over time, the reservoir will fill.

The reservoir first filled to its highest capacity in August 1974.

The reservoir filled to capacity at the end of 2008.

The reservoir, however, did not fill past the national border until 1954.

Electrical generation began in 1968 after the reservoir had completely filled.

Further downstream, a reservoir fills almost the entire width of the valley.