Laserfiche WebLink
D. Thus stockpiles will be present for shorter periods and more quickly utilized in doing <br /> reclamation. <br /> E. The salvage of the topsoil and overburden produces a platform of exposed gravel that <br /> extends outward from the remaining wall of overburden a few hundred feet. The outer <br /> edge of this platform forms the mining highwall where material is removed, thus <br /> slowly causing that highwall to migrate toward the overburden highwall. <br /> F. At the base of the overburden highwall and on top of the gravel layer a transportation <br /> corridor is often established that provides easy access to the overburden highwall for <br /> future stripping and haulage. <br /> Interim Seeding of TopsoiUOverburden Stockpiles: <br /> A. Because topsoil/overburden stockpiling will be done near where the material will be <br /> used in backfilling slopes and distribution across the floor of the pit these materials <br /> will be in a stockpile for less time than was the case before. <br /> B. If the material is expected to be in place for more than one summer season, it will be <br /> broadcast seeded with a simple quick growing seed mixture that should protect the <br /> stockpiled material from significant loss by water or wind erosion. SEE DETAIL. <br /> Mining of the Gravel Deposit: <br /> A. The gravel platform created by stripping the overburden off has a highwall on its outer <br /> edge where new mining occurs. <br /> B. Mining is usually done with a front-end loader. The loader usually hauls the material <br /> directly to the processing plant located nearby or puts the mined material in a truck that <br /> hauls it to the plant for processing if the plant is further away. <br /> C. Eventually, the distance from the highwall to the plant becomes too great for efficient <br /> haulage. When that happens every few years the plant is moved southward closer to the <br /> highwall and mining continues. <br /> D. Even though the processing plant will move south the wash plant will not. It will <br /> remain at its original location. Conveyors will be used to transport material between <br /> the two types of plants. <br /> Processing the Mined Material: <br /> A. At present only screening is being done, but later in 2022 the wash plant is expected be <br /> opened and then washed aggregate will be provided as an additional product. <br /> Fountain Pit Technical Revision#3 - June 2022 M-1982-155 Mining Plan Page 4 of 22 <br />