Sand and Gravel (Industrial)
Price, average value, dollars per ton 35.40 52.00 56.40 47.30 45.00 Employment, quarry and mill, number. e. 3,500 4,000 4,000 3,500 2,000 Net import reliance ... shortages of industrial sand and gravel were expected to continue to increase owing to land development priorities, local zoning regulations, and logistical issues, including ongoing ...