The Mojave Forks Dam, most often known as the Mojave River Dam, is an earth-fill dry dam across the Mojave River in San Bernardino County, California in the United States. Completed in 1974 by the U.S. Army Corps of Engineers, the dam is located at the confluence of the West Fork Mojave River and Deep Creek, and can store approximately 179,400 …The Mojave Forks Dam, most often known as the Mojave River Dam, is an earth-fill dry dam across the Mojave River in San Bernardino County, California in the United States. Completed in 1974 by the U.S. Army Corps of Engineers, the dam is located at the confluence of the West Fork Mojave River and Deep Creek, and can store approximately 179,400 acre⋅ft of water.