(5) Gravel.
Specific identification features include: gravel storage piles,
conveyors, and hoppers (Figure 2-22).
Figure 2-22.
Gravel Sites.
NOTE: Gravel, either from the stockpile or directly from the barges, is loaded into
the gravel hopper, which is the square elevated container. Railroad gondola
cars pass beneath the hopper on three rail lines, and gravel is dumped into
them.
(6) Grain
Specific
identification
features
include:
silos,
conveyors, and grain mill (Figure 2-23).
Figure 2-23. Grain Mill.
NOTE: Grain is conveyed from the silos to be processed in the grain mill, which is
a tall, flat roof building.
The height provides for the gravity flow of
grain and milled products from floor to floor.
IT 0673
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