A: There are four types of hiatal hernias. Most hiatal hernias are called type I or âsliding hernias,â where the stomach intermittently slides up into the chest through a small opening in the diaphragm. Sliding hernias are very common, and most donât require surgery.: There are four types of hiatal hernias. Most hiatal hernias are called type I or âsliding hernias,â where the stomach intermittently slides up into the chest through a small opening in the diaphragm. Sliding hernias are very common, and most donât require surgery.
Shasta Dam, which was completed in 1945 on the upper Sacramento River northwest of Redding, is the second-largest reservoir run by the Bureau of Reclamation in the country, behind Grand Coulee Dam in Washington.
Many of California's large lakes are actually reservoirs: artificial bodies of fresh water. In terms of both area and volume, the largest of these is Lake Shasta, which formed behind Shasta Dam in the 1940s. The dam can impound 4,552,000 acre feet (5,615,000 dam3) of water over 29,740 acres (12,040 ha).