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In 1970:
Edw. C. Levy Co. starts Concrete Components Co. to make
hollow core, pre-stressed concrete building members, and builds a new plant in Novi,
Michigan.
A new central-mix concrete plant is erected in Romulus,
Michigan.
In 1971:
A preheater is built on the rotary kiln at Detroit Lime
Co. in Michigan to increase plant production.
In 1972:
Edw. C. Levy Co.
purchases the ready-mix and sand & gravel business of South Lake
Service Co. in South Bend, Indiana and begins operating as St.
Joseph Materials Co
The former Peerless Cement Plant in Detroit is purchased
and operation begins as Jefferson Marine Terminal (JMT) for receiving, grinding, and
shipping cement.
Edw. C. Levy Co. purchases Cadillac Asphalt Paving Co.
Edw. C. Levy Co. develops a patented process to
chemically treat slag cooling water to eliminate odor emissions.
In 1973:
Hatchet, Inc. is created to perform foundry waste scrap
recovery operations with portable plants.
Gravel Trucking Co. is formed to operate
a fleet of dump trucks & trailers specially designed to haul hot asphaltic
mixtures, construction debris, and for steel mill servicing.
In 1974:
Indian Trucking Co. in Burns Harbor, Indiana is formed to
move aggregates in northern Indiana.
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