2002-06-03_REVISION - M1981154 - Laserfiche WebLink

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SAN MIGUEL COUNTY ROAD AND BRIDGE DEPARTMENT bIIKE HORNER, SUPERINTENDENT May 21, 2002 ~~~ ~ 3 2002 Durango Field Office Geology ~~iab °~eral~gG~~ 701 Camino del Rio Room 125 Durango, CO 81301 Subject: Request for Technical Revision to San Miguel County's, Norwood Gravel Pit, M-1981-154 San Miguel County is submitting this request for a technical revision for the purpose of importing excess fill material to the Norwood Gravel pit. Because it becomes more and more difficult to dispose of excess material out on job sites, the County is requesting approval to use the material at the pit to fill and re-slope high walls. During routine maintenance of the counTy roads, excess material is generated primarily from ditch cleaning and mudslide cleanup and hauled to the gravel pit. Only natural clean fill or recycled asphalt chunks from county road. projects aze imported to the site. It is estimated that up to 1000 cubic yazds per year may be imported. However, on rare occasions more material may be imported as a result of mudslides on one of the county roads. In addition, occasionally local contractors look for a site to dispose of fill from home excavations or other projects which helps the County backf'ill the high wall and create a 3:1 slope along the east boundary of the pit. Without the importation of fill, the County would have to leave an unmined slope along the east boundary that would contain several thousand yazds of gravel. One final note, any good topsoil that is imported is stored and revegetated for use later during final reclamation. A map is attached to delineate the location of imported fill material. Thank you for your consideration and please let me know if you need additional information to process this application for technical revision. Sincerely, ~~~ Mike Horner Road Superintendent P.O. Box 426 Norwood, Colorado 81423 Phone: (970) 327-4835 Fax: (970) 327-4090