An existing two-lane Miami highway was to be expanded into four-lanes so that it was better suited for any necessary evacuation of the locale. The length of the road was approximately 9 miles (15km), with its width increasing from 40 ft. to 60 ft. (from 12 to 20m). Material to be processed in order to expand the highway included part of a swamp, peat, decomposing and fresh vegetation as well as wet sand.
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