040_December 1931

              "A page of views of the low level concrete mixing plant and track hopper for gravel storage.     The mixing plant is designed to accommodate six 4-cubic yard   mixers, four of which are now being installed.     When all six mixers are installed, the capacity of the plant will be 170,000 cubic yards of concrete per month, with a 16-hour daily operation. It is capable of producing 7 cubic yards of concrete per minute.
# 730   View of the mixing plant under construction, looking upstream.      The cement silos will be located in the upper front portion of the structure.   January 1st, 1932.
# 728   The mixing plant, looking downstream.     Belt conveyor structure in foreground.       Two 42-inch conveyors will bring gravel from the track hopper, a distance of 518 feet, up an incline of 16 degrees.     Each conveyor can carry 750 tons of gravel per hour.     January 1st, 1932.
# 729   Mixers being unloaded from railroad cars.       These
mixers are 4 cubic yards capacity and have a cycle of three and a half minutes for loading, mixing and dis-charging.       January 1st, 1932.
# 699   Track hopper for gravel storage under construction.
Bottom dump railway cars will be spotted directly over the bins.       There are 5 bins in the hopper, each holding a different size aggregate.     Each bin has a capacity of 10 carloads.        December 24th, 1931."