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I <br /> 5655 5655 <br /> 5650 5650 <br /> 5645 5645 <br /> 5640 5640 <br /> i <br /> 5635 I ' <br /> 5635 <br /> 5630 5630 <br /> 5625 5625 <br /> 5620 5620 <br /> 5615 5615 <br /> 5610 1 1 5610 <br /> 0+00 1 +00 2+00 3+00 4 +00 5+00 <br /> Hor. Scale 1"=100' Current Topography <br /> Vert. Scale 1"=20' Completed pond topography <br /> I <br /> 5625 5625 <br /> 5610 5620 5620 <br /> 5615 / 5615 <br /> `s 5610 5610 <br /> 7 <br /> 0+00 1 +00 2-+00 3+00 4 +00 <br /> `r 5615 <br /> c.s-► <br /> 0 <br /> Bd() r��2� 5620 5619 <br /> 5618 .�._ <br /> Q 5617 _ <br /> 5616 5615 (� <br /> 5614 5613 - 0 <br /> Scale 1" = 10' <br /> 0- <br /> 1 QQ Emergency Spillway Cross Section <br /> .�` Control Section <br /> Crest El. 5620.0 H = 0,56' <br /> ..................... <br /> 3X Control Section El. 5618.0 <br /> ' ? 20' <br /> Emergency Spillway Hydraulics <br /> 1 Control Section, 25 Year Event with Full Pond <br /> 2 Q = CLH 3/2 <br /> �£ <br /> Q = 21.7 cfs <br /> C = 2.63 <br /> L = 20 ft <br /> ,:a A <br /> H = 0,56 ft <br /> - _ .,. . .._. Required control section freeboard is 0.3 feet. <br /> spy„"N Available freeboard is 1.44 feet. <br /> oa <br /> 3�I <br /> it <br /> N <br /> W E <br /> JUN 14 2016 <br /> Division of Reclamation, <br /> Mining&Safety <br /> S <br /> 50' 0' 50' 100' Legend <br /> 0 � an!!!!IPond Pl View <br /> 1" = 50' Area-CapaciblTable <br /> Topo. Postmrnmg Topography outside of construction limits, Permit Boundary <br /> with constructed pond topograph within construction area Elevation Area Area Ave Area Incre. Cum <br /> Contour Interval 5 foot, with 1 foot contours within pond area. (feet) (ft sq) (acres) (acres) (ac-ft) (ac-ft) Profile <br /> 5613.0 53410 1.23 0.00 Completed Pond Contour <br /> 1.26 1.26 5614.0 56081 1.29 1.26 Streams <br /> 1.32 1.32 ENGINEERS CERTIFICATION <br /> 5615.0 58$15 1.35 2.5$ 1, Thomas C. Peterson, hereby certify that this TR-73 <br /> 1.38 1.38 map has been reviewed by me and is true and Approved 8/24/2016 <br /> 5616.0 61612 1.41 3.96 correct to the best of my knowledge and <br /> information, relying on information supplied <br /> b experts employed b New Horizons Mine <br /> Construction Notes. 1.45 1.45 y py <br /> 5617.0 64472 1.48 5.41 and that I am a Professional Engineer licensed Attachment 2.05.3(3)-29, Page 7 <br /> 1. Site Preparation: 1.52 1.52 in Colorado as required by the provisions of <br /> This site has a very limited amount of fill placement, as the impoundment is largely subgrade. C.R.S. 12-25-101 through C.R.S. 12-25-119. Pond location: SE1/4 SWI14 Section 36 T47N R16W <br /> 5618.D 67394 1.55 6.93 IN WITNESS WHEREOF I have hereunder set <br /> Prior to placing fill, the area will be stripped of any organic or other deleterious materials. my hand and affixed my seal. <br /> Pond 0 16 Plan View and <br /> 2. Acceptable Fill Materials: <br /> Suitable fill materials can be obtained from pond excavations or from nearby borrow sources. Suitable materials include native clay soils, clayey sand soils, and bedrock materials which are broken down to these soil types (SC', CC, CL and CH). Bedrock materials will be , � Design Details <br /> processed to produce a soil like material with maximum particle size of 6 inches. The materials used as embankment fill will have at least 25 percent fines (material finer than No. 200 sieve). The field engineer may approve the use of other materials following appropriate .��%``�P��• �C ,1�,#, <br /> © + + ell �► SCALE: Scale As Noted <br /> laboratory testing. :� y : 5 r%> PF��: � ORIGINAL DATE: 11/28/209 5 <br /> 3. Unacceptable Fill Materials: = : 32257 Z: =p .... <br /> • • � �PPRO�D BYESI//��P <br /> Materials not considered suitable for use as embankment fill include cleaner sand and gravel. Also unacceptable are highly carbonaceous materials obtained from bedrock excavations or well-cemented sandstones which do not break down to soil like material. Organic soils or �a�:• ,.4w � <br /> materials containing construction debris are also not acceptable. Frozen soil is not acceptable. ,iao*;�/ <br /> Fss••.,...••'����' ,� tio,?,Zo\` <br /> ONAL ��� New Horizon Mine DWG Na. Map 2 <br /> 4. Fill Placement and Com action: Permit No.C-1981-008�' �'�►"` P.0Box628,Nucla,CO.81424 Attachment 2.05.3(3)-29 <br /> Embankment fill will be placed in thin horizontal lifts (8 to 12 inches loose thickness). The fill will be moisture conditioned to within 2 percent of optimum moisture content and compacted to at least 95 percent of standard proctor maximum dry density (ASTM D 698). The THOMAS C PETERSON <br /> placing and spreading of fill materials will be started at the lowest point of the embankment. Fill placement and compaction will be observed and tested by qualified engineering firm. P.E. No. 3 257 No, REVISION DATE BY CHK <br /> 41' <br /> 5. Pond capacity is an estimate based on bedrock conditions. These conditions may result in final capacity of the pond to vary by 0.5 acre-feet from that shown in the capacity table. DATE TR- New design for Pond 016 1/11/16 TCP FKF <br /> 70 <br /> TR- Updated Permit Boundary 5119116 TCP FKF <br /> 73 <br /> FILENAME: Map 2 Pond 016 Map 2.05.3.dwg <br />