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Distribution and quality of potential sources of aggregate infrastructure resources project area, Colorado-Wyoming


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2013-05-16 14:07:45


Crushed stone and sand and gravel are the main types of naturalaggregate used in the United States. Aggregate is used in nearlyall residential, commercial, and industrial building construction,and in most public works projects including roads and highways,bridges, railroad and light rail beds, airports, water and sewersystems, and tunnels. Much of the infrastructure built during the1950s and 1960s has deteriorated to a point that requires extensiverepair or replacement. All this construction requires enormousamounts of aggregate. In Colorado, for example, nearly 45 milliontons of aggregate, or about 12 tons per person, were producedduring 1994.


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Planners and other decision makers responsible for resourcemanagement should find this map useful in regional planning andland use management. Because statutory regulations, technologicalcapabilities, available funding, and land-use priorities vary fromplace to place and can be expected to change with time, this map isdesigned to provide a resource data base that will be useful overthe years. This map is in digital format and can be used withother digital data sets, according to the specific needs of aparticular planning issue. As planning criteria change, theselection of pertinent resource characteristics can be adjusted tomeet the changing needs.

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