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HOFFMAN CONSTRUCTION CO. <br /> HOFFMAN <br /> CONSTRUCTION <br /> 123 CTH A <br /> Black River Falls,WI 54615 <br /> Phone(715)284-2512 Fax(715)284-9698 <br /> www.hoffinanconstructionco.com <br /> PROJECT DESCRIPTION NARRATIVE <br /> • General description of operation: <br /> O Mining, crushing, washing sand & gravel; concrete & asphalt batch <br /> plant; and import of pit run sand & gravel from within the Radio <br /> Tower CUP site and from the existing nonconforming (a/k/a <br /> "grandfathered") mineral extraction site located at 487 Hillside Road <br /> (confirmed per December 12, 2016 correspondence from Brian <br /> Standing). All materials will be used for WDOT 1-39/90 <br /> reconstruction. <br /> O Mining: Approximately 4'-12' of sands & gravel will be mined over <br /> an approximate 45-acre area in phases and stockpiled for <br /> processing. Existing topsoil & subsoils will be mined and stockpiled <br /> for reclamation. Approximately 13 to 15 acres per phase will be <br /> mined using block mining techniques (strip & mine one area, then <br /> reclaim using topsoil and subsoil from next area). Approximately <br /> 600,000 cy of material to be mined and processed. Site will be <br /> internally drained during construction with emergency overflow. <br /> O Sand & gravel processing: sand & gravel from the pit run stockpile <br /> will be crushed, washed and stockpiled for concrete and asphalt <br /> operations. Sediment ponds and freshwater makeup pond <br /> (groundwater) will be used in the aggregate washing operation. <br /> O Concrete & asphalt batch plants: Approximately 12,000 cy of <br /> concrete batch is required per NB & SB mile of 1-39. Asphalt is <br /> required for temporary roadways, cross-overs and asphalt <br /> shoulders. Access to 1-39 will be direct to ROW, via Lake Drive <br /> underpass to ROW and/or via Lake Drive west to Hwy 73 north to <br /> 1-39 interchange. <br /> • Existing use of the land: <br /> O Land is currently a mixture of agriculture, wooded and abandoned <br /> sand & gravel pit. <br /> • Existing natural features of the land including depth to groundwater: <br /> O Current land consists of rolling agricultural fields with wooded land <br /> and remnants of an old sand & gravel pit and fill dump site. <br /> Groundwater is estimated to be approximately at elevation 805'- <br /> 815'. <br />