January 20, 1943-- In the
middle of World War II, a dam rises in the Arroyo Seco, the first
project in the US Forest Services Los Angeles River watershed
program. Note the construction elevator for people and equipment,
the Reo truck and the
compressors in the foreground.
January 20, 1943-- This is the upstream side of the
dam with a vertical drain and grate rising up behind the dam.
March 16, 1943-- Flood debris is already filling up behind the
dam. Note the riparian character behind that will be submerged
beneath sediment and debris
March 16, 1943 -- This the same day as the previous
picture of the upstream side of
the dam. The weepholes indicate the water level behind the
dam. Also note the swirling pool of water in front of the dam
June 7, 1943 -- Several months later there is still significant water behind the dam. Note the scouring of the area downstream of the dam and the remaining construction debris resulting
from cleaning and site preparation.