San Gabriel & Morris Reservoirs

 

 

"The San Gabriel Dam played an important role in reducing the flooding on the San Gabriel River in the Los Angeles Flood of 1938, even though it had not yet been completed at the time. More than 150,000 cu ft/s of water poured into San Gabriel Reservoir at flood's peak, but the dam's extra capacity was able to knock about 40,000 cu ft/s off the peak of the flood. Further downstream, Morris Reservoir was able to absorb roughly 30,000 cu ft/s, reducing the flood to less than half of what it would have been if not for the dams."