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1600 West 12th Ave <br /> DENVER WATER 3036286, 80204-3412 <br /> 03 000 <br /> idenverwoter org <br /> October 8, 2018 <br /> Mr. Eric Scott <br /> Division of Reclamation Mining and Safety <br /> 1313 Sherman Street, Room 215 <br /> Denver, Colorado 80203 <br /> RE: Technical Revision to M-2004-078 for Conveyor Bridge <br /> Dear Mr. Scott: <br /> Denver Water is writing to submit the attached technical revision to the Lupton <br /> Lakes Resource, Permit No. M-2004-078. To facilitate mining at Lupton Lakes <br /> Resource, Martin Marietta is requesting to extend a conveyor bridge across Highway <br /> 85 to connect the mining area to their processing area west of the South Platte River <br /> associated with mining Permit No. M-2000-016. Martin Marietta said that they <br /> briefly discussed this with you and Peter Hays. <br /> The conveyor bridge is being designed by Martin Marietta in coordination with <br /> Colorado Department of Transportation (CDOT) and the Federal Highway <br /> Administration (FHWA). Attached are the 30% plans approved by CDOT. They will <br /> be completing a 60% set shortly and then it will go to FHWA for 90% and final <br /> approval. Construction will all be coordinated with CDOT/FHWA and Martin <br /> Marietta will have to bond for the project with CDOT and maintain a financial <br /> warranty through the life of its use. For this reason, it is Denver Water's <br /> understanding that this can be done as a technical revision. The only portion of the <br /> project falling in our permit boundary is a caisson and pillar/stair structure,which <br /> will remain on the property through the completion of reclamation. CDOT will then <br /> require the caisson and pillar/stair structure be removed. Martin Marietta will <br /> remain compliant with the applicable Fort Lupton Special Use permit. <br /> Also included is a revised mining plan, showing the general location of the caisson <br /> and pillar, as well as an aerial photo to show a more general depiction of the <br /> conveyor across the two permits. Please give me a call (303-628-6539), if additional <br /> information is needed. <br /> Sin erely, . <br /> l <br /> yan S t <br /> Downstream Reservoir Water Storage Program Manager <br />