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_,~ <br />., <br />,.... <br />us AtRty cogs <br />of Englrteers <br />Sacramento District <br />1325 J Street <br />Sacramento. CA 95t31d <br />~ - - - - - ~ Si~~--S <br />III IIIIIIIIIIIII III s~s-~ ~- <br />P~r~~~~ ~lot~ce ~ . <br />Public Notice No. 199200135 Date: March 10, 1992 (./_ <br />In Reply Refer to the above Comments Due by: April 911, 1992 <br />Public Notice No. <br />JOINT PUBLIC NOTICE <br />U.B. ARMY CORPS OF ENGINEERS, t3ACRAMENTO DISTRICT <br />AND <br />STATE OF COLORADO, DEPARTMENT OF HEALTH <br />TO WHOM IT MAY CONCERN: <br />SUBJECT: Application for a Department of the Army permit under <br />authority of section 404 of the Clean Water Act (CWA) and for <br />water quality certification under Section 401 of the CWA to <br />discharge dredged and fill material in the Uncompahgre River, <br />as shown on the attached drawings. <br />APPLICANT: ZMK Mine Construction, Inc., Post Office Box 1817, <br />Ouray, CO 81427, (303) 325-4970. <br />LOCATION: The project site is located on the Uncompahgre River, <br />approximately 5 miles north of Ouray, in Section 2, Township 44 <br />North, Range 8 West, Ouray County, Colorado. <br />PURPOSE: The applicant proposes to construct an alluvial dike, <br />install a rail and wire sill structure, and place riprap to <br />facilitate gravel extraction for sale as road base and other <br />construction uses. <br />OJECT DESCRIPTION: The applicant proposes to discharge <br />approximately 650 cubic yards of native alluvial material in <br />the Uncompahgre River for construction of a dike. Approximately <br />2,000 cubic yards of ripra~ will also be laced to stabilize and <br />reinforce banks. In addition, a combination rail/wire sill will <br />be constructed at the upstream (south) end of the project area <br />to prevent potential headcutting by the river. If a Department <br />of the Army permit were issued, it would be for a maximum of 5 <br />years. <br />AREA DESCRIPTION: The project site is located in an area of <br />heavy alluvial deposit at an elevation of 7,184 feet. Thirteen <br />miles upstream of the site, Red Mountain Pass towers at 11,200 <br />feet. Steep terrain on the east and west also contribute to a <br />high bedload volume. In this area of the valley, the 100-year <br />floodplain is over 1,700 feet wide. Course streambed material <br />is continually deposited with greater than 58% measuring over 1 <br />inch in size. A riparian area parallels the river with cotton- <br />