United States Department of Transportation
i
Analysis of Ohio’s Fine and Coarse Aggregate Reserve Balances
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2021-12-01
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[PDF-5.00 MB]
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Edition:Final Report
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Abstract:The primary goal of this research project was to assist the Ohio Department of Transportation (ODOT) in identifying fine or coarse aggregates that might be subject to supply shortfalls in the future, estimate the financial impact to ODOT of these shortfalls, and recommend appropriate policy options to pursue in the event of shortfalls in aggregate supply. To start, the state of Ohio was first divided into five different study regions based on aggregate availability and population distribution. The amounts of aggregates produced and consumed in each study region were estimated using information obtained from ODOT and the Ohio Department of Natural Resources (ODNR). In addition, local aggregate reserves in each study region were estimated using information for individual mines, and different models were used to predict the number of years until these reserves are fully depleted. Zoning laws related to aggregate mining in Ohio were examined in this study and information was gathered from several representatives of the aggregate industry to document obstacles to expanding existing aggregate mine boundaries or opening new mines. This research study confirmed that the eastern half of the state has limited amounts of crushed carbonate stone (limestone/dolostone) reserves, while the southern and northwest regions of the state have limited amounts of sand and gravel reserves, making it necessary to import aggregates from other regions to meet local needs or use locally available aggregates that may be lower in quality. In addition, this study identified areas within the state where aggregate resources may become depleted at some point in the future. At the current time, the central region of the state has moderate amounts of reserves of limestone/dolostone as well as sand and gravel. However, these aggregates are being depleted rapidly, especially for mines located in the Columbus area. If the demand for aggregates in this region continues to increase at the current rate, the aggregate reserves are expected to become significantly diminished in the next thirty to forty years, with the financial effect of the aggregate shortage occurring in the next twenty to thirty years.
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