ABSTRACT
The Ermenek hydro power plant is located in southern Turkey and collects the water of the Ermenek river and its tributary, the Erik river. The doublecurved arch dam is located in a narrow gorge and has a height of 210 m with a crest length of only 123 m. Most of the hydro power plant facilities, except the dam and the main powerhouse, are placed below ground. Grouting galleries with a total length of approximately 10 km, covering a grouting area of 1.5 km2, are designed in 4 levels in a vertical distance of approximately 70 m in order to make a grout curtain in karstified limestone (Figure 1).
