hell hole dam 예문
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- In 1964 the first Hell Hole dam was completed.
- Hell Hole Dam was partially completed at the time of extremely heavy storms in December 1964.
- The Hell Hole dam, a rock-fill-type dam, was completed across the Rubicon River in December 1964.
- Lower Hell Hole Dam ( its official name ) is operated by the Placer County Water Agency, a powerful political force in the region.
- The lake was created in 1966 with the completion of Lower Hell Hole Dam across the Rubicon River, which is a major tributary of the Middle Fork of the American River.