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<br />PLAN VIEW - STURGEON ACCESS ROAD
<br />Scale i" = 200 Feet
<br />I
<br />TYPICAL CROSS - SECTION
<br />Scale 1" = 2 Feet
<br />°o
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<br />V Ditch, approx. 1.5 ' deep
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<br />200 0 200 400'
<br />CONTOUR INTERVAL 25 FT.
<br />O O N V nD OD
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<br />N N N N N Ch M co OJ
<br />APPROXIMATE PROFILE OF EXISTING ROAD SURFACE
<br />Scale 1 "= 100'
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<br />SEGMENT A
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<br />LEGEND
<br />PERMIT BOUNDARY WITH PERMIT REVISION
<br />DRAINAGE BOUNDARY
<br />ROAD CENTERLINE
<br />Q APPROXIMATE SWALE AREA
<br />ENGINEER'S CERTIFICATION
<br />1, THOMAS C. PETERSON, being a
<br />Licensed Professional Engineer in
<br />the State of Colorado, do hereby
<br />certify that this map has been prepared
<br />to meet the applicable portions of Colorado
<br />CDMG Rule 4.03.2 for Access Roads as agreed
<br />in March 22, 2007 meeting with DRMS staff.
<br />O •,.....•• y ��
<br />= Oy • C. PFT�'. • J'�
<br />U : '0P i
<br />32257 z:
<br />C
<br />P.E. No. 32257
<br />3/3/16 7
<br />DATE
<br />in
<br />IN
<br />S
<br />E
<br />SEGMENT COORDINATES
<br />Cdavyo Cordinate System
<br />Shdm
<br />Essing
<br />NortMng
<br />0+00
<br />1,350,037.27
<br />320,08122
<br />2+00
<br />1,350,440.00
<br />326,618.08
<br />4+00
<br />1,350,280.04
<br />320,554.27
<br />0+00
<br />1,350,003.02
<br />320,558.22
<br />8+00
<br />1,340,874.84
<br />320,825.40
<br />8 +62
<br />1,340,820.10
<br />320,044.76
<br />10+00
<br />1,340,682.24
<br />326,671.00
<br />12+00
<br />1,340,483.70
<br />326,730.63
<br />14 +00
<br />1,340,309.57
<br />326,720.59
<br />16+00
<br />1,340,136.05
<br />320,028.12
<br />18 +0D
<br />1,348,030.03
<br />320,029.70
<br />20+00
<br />1,348,746.35
<br />326,599.58
<br />22 +00
<br />1,348,564.92
<br />326,520.25
<br />24 +00
<br />1, 348, 388.01
<br />320, 432.90
<br />26+00
<br />1,348,201.22
<br />326,366.38
<br />28+00
<br />1,348,017.54
<br />326,288.52
<br />30+00
<br />1,347,835.10
<br />326,200.87
<br />32+00
<br />1,347,000.49
<br />320,110.07
<br />34 +00
<br />1,347,470.20
<br />320,027.81
<br />30 +00
<br />1,347,287.00
<br />325,97,L O3
<br />38+00
<br />1,347,157.05
<br />3MO80.01
<br />39+34
<br />1,347,130.00
<br />326,222.46
<br />SEGMENT B COORDINATES
<br />Colo yo Cardinafe System
<br />Station
<br />Easing
<br />Nor6ung
<br />8 +52
<br />1,349,826.16
<br />320,644.78
<br />10 +00
<br />1,349,798.12
<br />326,774.51
<br />12 +00
<br />1, 349, 789.01
<br />326, 973.28
<br />12 +44
<br />1,349,784.02
<br />327,017.18
<br />Construction Notes:
<br />This road has been designed to meet the applicable portions of CDMG Rule
<br />4.03.2 for Access Roads as agreed upon in a March 22, 2007 meeting with DRMS
<br />staff. It is specifically designed to meet the minimum design requirements while
<br />minimizing additional disturbed area and preventing environmental damage.
<br />1 Use of road is for routine environmental monitoring and occasional pond maintenance.
<br />Typical road use would consist of one trip per week by a light use vehicle
<br />using one way travel and low speed.
<br />2 Horizontal alignment will exactly follow existing two track road alignment and is
<br />consistent with existing natural topography.
<br />3 Overall grade of the existing road is approximately 3.1 %
<br />4 Access is controlled at all times by a locked gate.
<br />5 No culverts to be installed. An existing 24" CMP exists at Sta. 0 +15 that provides
<br />drainage under the road for artesian flows from the Sturgeon flowing well.
<br />6 No topsoil will be removed prior to surfacing with gravel.
<br />7 Existing road will be hard bladed to remove all vegetation and nutting and to provide
<br />a level surface across roadway.
<br />8 Maximum cut and fill depths shall be less than 2 feet
<br />9 As shown above, several swa /es shall be located as directed by field engineer.
<br />Sweles shell consist of a 20 foot long depression in the road surface in areas where
<br />upstream drainages tend to contribute runoff. Sweles are intended to prevent sheet
<br />flows across the roadway. In place of the 4 to 6 inch gravel base, a 6 inch layer of
<br />crushed stone shall be placed across the bottom of the swale for the entire 12 foot
<br />width. Size of the crushed stone materiel shall between 2 to 4 inches in
<br />diameter and be free from fines.
<br />10 The completed ditch shall be broadcast seeded with the specified mixture
<br />upon completion of the roadway.
<br />11 Following bleding, a minimum 4 inch thickness of clean, minus 2 inch gravel
<br />from a commercially available source shall be placed and compacted across the
<br />12 foot wide travelway. The field engineer may modify this specification to
<br />include crushed rock from the mine site provided this material meets other
<br />requirements. The road shell be crowned such that the minimum depth of
<br />gravel along the centerline is 6 inches. Approximate quantity of gravel
<br />needed is 800 cubic yards.
<br />12 A triangular V -ditch approximately 18 incites in depth shall be cut on the uphill
<br />(Northern) side of the completed roadway. Ditch shall be cut into swede
<br />areas as directed by field engineer.
<br />13 No vehicular traffic allowed beyond the construction limits identified above.
<br />14 Upon completion of construction, a report shall be provided by a professional
<br />engineer certifying that the construction has been completed according to plan.
<br />15 As noted in the associated text, the land owner has requested that this road
<br />remain following mining activites and will riot be reclaimed.
<br />R ,EGr,%VS1D
<br />p,PN fl .3 2001
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