It was constructed for hydroelectric power. After the WWⅡ, Japan experienced high economic growth and faced a electric power shortage. The dam is located on the Kurobe Valley that is a deep v-shaped valley surrounded by the Hida Mountains[飛騨山脈（ひださんみゃく）] over 3,000m high. So, it's abundant in water by rivers form the mountains. It was the reason this place was selected. But this place was difficult to access. Because of that, the tunnel was built. It took 7 years from 1956 to 1963 at a cost of 51.3 billion yen for the construction of the dam project. And 171 casualties was brought.
Kurobe Dam is also called "Kuroyon Dam[黒四（くろよん）ダム]" that is derived from a power plant of Kurobe Dam "be-gawa Dai- Power Plant[黒部川第四発電所（くろべがわだいよんはつでんしょ）]".
Tourists can visit there between April and October. From late June to mid-November, the dam discharges water for tourists. It's very powerful & impressive. Kurobe Dam is a spot on the Tateyama Kurobe Alpine Route[立山黒部（たてやまくろべ）アルペンルート] that is in picturesque great nature. The route is connected by railway, bus, rope-way, funiculars & trolleybuses.