Morris Dam

Morris Dam is a concrete gravity dam across the San Gabriel River in the U.S. state of California. It impounds Morris Reservoir.The dam was built in the 1930s as a water supply facility for the city of Pasadena, but is now mostly utilized for flood control and flow regulation for groundwater recharge. Situated in northern Los Angeles County, the dam impounds the 417acre Morris Reservoir in the Angeles National Forest, a few miles northeast of Azusa. From the 1940s to the 1990s, the reservoir was also used for underwater missile testing by the United States military.Design and locationThis dam sits south of Silver Mountain and north of Glendora Ridge, which flank the 1500ft deep San Gabriel Canyon. It is roughly 37mi upstream of the San Gabriel River's mouth at the Pacific Ocean, and 6mi downstream of the river's beginning at the confluence of its East and West Forks. Morris Reservoir is about 3mi long and 1152ft above sea level at maximum pool, covering 417acre. The dam's crest itself is at an elevation of 1161ft.