Florida Rock – Gulf Hammock, Florida – 1,500,000 c y of rock excavation completed in 2 years. White Rock Quarry – Miami, Florida – 1,900,000 cy's of overburden and rock excavation, 500,000cy of rock exaction and 500,000cy of rock crushing in a two year period. Rinker Estero Road – Fort Myers, Florida – 2,500,000cy of excavation.