PERMFILE72377 - Laserfiche WebLink

Home Browse Search

I 1 1 I JiI I 0 04 � . J r' .1 d 4 ) 1A SURFACE LEGEND I I I CREST OF CUT CREST OF FILL 48" DIA. CULVERT NOTE: CULVERT AND CULVERT STRUCTURES TO BE DESIGNED BY OTHERS EXISTING GROUND SURFACE CONTOUR t- W W W z z 0 Q W J W E PLAN VIEW CLEAN WATER DIVERSION DITCH RUNOFF DITCHES TO SEDIMENTATION POND —� SEDIMENTATION POND SPILLWAY CHANNEL - - - - - - -- RUNOFF FLOW DIRECTION —• —•— - DRAINAGE AREA BOUNDARY E 0 5' 10 1 SCALE 1 "= 5 HORIZONTAL AND VERTICAL SECTION E -EI BENCH D ;H SECTI( 1m 11 II 11 II i I A 7325 -i I- w W I/ ? 7 320 -1 i H w J 1`J 7315 B 7235 -� H w W W z_ z 7230 0 1- a W J W 7225 -1 C 7175-4 A C' SCALE I" = 5' HORIZONTAL AND VERTICAL SECTION C -C' SEDIMENTATION POND EMBANKMENT - SECTION THROUGH SPILLWAYS D) 6 FT. EMERGENCY SPILLWAY 3FT. CREST OF EMBANKMENT 3 FT. • °• I 2 FT. I L •' 2 � 2 ;•• 1 FT. THICKNESS RIPRAP (SEE NOTE) APPROX. 3.4 FT. / PRINCIPAL SPILLWAY 24 IN.DIA. + CORRUGATED STEEL PIPE CONDUIT RIPRAP NOTE: WHERE GRADIENT OF k SPILLWAY CHANNEL SEEPAGE COLLAR (DOWNSTREAM FROM PRINCIPAL MIN. O.D.6FT. SPILLWAY OUTLET) EXCEEDS 2 %, 12" Moo RIPRAP SHALL BE USED D WITH A BED THICKNESS OF 2.0 FT. 0 5 1 10 SCALE I "= 5' HORIZONTAL AND VERTICAL SECTION D -DI OF EMERGENCY SPILLWAY COLLUVIAL SOILS 1.5 FT. MIN. 0 5' 10' SCALE I" = 5' HORIZONTAL AND VERTICAL SECTION A -AI CLEAN WATER DIVERSION DITCH SECTION (GRADIENT <10 =L= - - 2 1 FT MIN. 2 Ir . 8 FT. 0 5 10' SCALE I"= 5' HORIZONTAL AND VERTICAL SECTION B -B' CLEi DIVERSION DITCH SECTION AI a MSN DATE: 8/17/86 CONCRETE APRON AT SHEET NO. Drawn by: DL 10 IN. LONG, CUT IN HALF LENGTHWISE,TACK F, 6 OF JO Chocked by: EMERGENCY SPILLWAY INLET Q 17301 WEST COLFAX AVE. SUITE NO.275 WELDED TO RISER PIPE CONDUIT RISER PIPE W GOLDEN,. COLORADO 60401 863 -2032 CREST OF EMBANKMENT EL.7170 EXISTING GROUND SURFACE LL 7170 I i — — — — \ CREST OF EMERGENCY 2 Fr. \ / 8 IN. ? i CRESTOF PRINCIPAL SPILLWAY EL.7168.0 3FT. 2 %GRADE \ z / SPILLWAY ELEV.7166.9 I FT. ••.••.; '.Q(Q \ 0 MAX.SEDIMENT i ELEV.7165.2 \ 2 IN. STORAGE LEVEL OPEN AT TOP 10 T AND BOTTOM 2.3 FT. ABOVE BOTTOM OF 4 -1.5 IN.DIAMETER 2.0 RISER G ELEV.7165.2 ORIFICE HOLES RISER WALL 2FT• NOT TO SCALE °:� 1.0 \ > 7165 ELEV. 7165.2 _- MIN - W (SEE DETAIL 1 ) J PRINCIPAL SPILLWAY W INVERT EL_ 7162.9 24- IN.DIdM. CSP CONDUIT 0 2 /o GRADE - INVERT EL. 7162.1 2 FT M N SEEPAGE COLLARS ;:• 7160 — POND BOTTOM EL.7160.0 0 5 IFT MIN. THICKNESS D DOWNSTREAM _ (SEE NOTE ON RIPRAP, SEC. D -D') SCALE I" = 5' HORIZONTAL AND VERTICAL SECTION C -C' SEDIMENTATION POND EMBANKMENT - SECTION THROUGH SPILLWAYS D) 6 FT. EMERGENCY SPILLWAY 3FT. CREST OF EMBANKMENT 3 FT. • °• I 2 FT. I L •' 2 � 2 ;•• 1 FT. THICKNESS RIPRAP (SEE NOTE) APPROX. 3.4 FT. / PRINCIPAL SPILLWAY 24 IN.DIA. + CORRUGATED STEEL PIPE CONDUIT RIPRAP NOTE: WHERE GRADIENT OF k SPILLWAY CHANNEL SEEPAGE COLLAR (DOWNSTREAM FROM PRINCIPAL MIN. O.D.6FT. SPILLWAY OUTLET) EXCEEDS 2 %, 12" Moo RIPRAP SHALL BE USED D WITH A BED THICKNESS OF 2.0 FT. 0 5 1 10 SCALE I "= 5' HORIZONTAL AND VERTICAL SECTION D -DI OF EMERGENCY SPILLWAY COLLUVIAL SOILS 1.5 FT. MIN. 0 5' 10' SCALE I" = 5' HORIZONTAL AND VERTICAL SECTION A -AI CLEAN WATER DIVERSION DITCH SECTION (GRADIENT <10 =L= - - 2 1 FT MIN. 2 Ir . 8 FT. 0 5 10' SCALE I"= 5' HORIZONTAL AND VERTICAL SECTION B -B' CLEi DIVERSION DITCH SECTION AI a DETAIL 1 DEWATERI NG DEVICE RISER PIPE GENERAL NOTES 1) A SUITABLE PROTECTIVE SCREEN OR TRASHRACK SHALL BE PROVIDED OVER THE PRINCIPAL SPILLWAY INLET. 2) ALL RIPRAP SHALL BE COMPOSED OF A WELL- GRADED MIXTURE OF DURABLE ROCK; MOST OF THE STONES SHOULD BE OF DjpO SIZE. MINIMUM RIPRAP THICKNESS SHALL BE AT LEAST EQUAL TO THE D100 SIZE, UNLESS SPECIFIED. RIPRAP SHOULD BE PLACE OVER A SUITABLE GEOTEXTILE FILTER OR FILTER BLANKET OF GRADED GRAVEL IN A LAYER 1.5 TIMES THE D100 SIZE. 3) CONSTRUCTED HEIGHT OF THE EMBANKMENT SHALL BE 5 PERCENT GREATER THAN THE SPECIFIED DESIGN HEIGHT. 4) A SEDIMENT LEVEL INDICATOR SHALL BE PROVIDED FOR MARKING THE SEDIMENT CLEANOUT LEVEL IN THE POND. 5) THE POND SHALL BE CONSTRUCTED BY EXCAVATING THE IN -SITU SOILS AND CONSTRUCTING THE DIKES FROM THE EXCAVATED SOILS: NO EXCAVATED (CUT) OR EMBANKMENT (FILL) SLOPE SHALL EXCEED 2(H):1(V). 6) RIPRAPPED SPILLWAY DOWN FACE OF THE EMBANKMENT WILL BE OF THE SAME DIMENSIONS AS THE EMERGENCY SPILLWAY AT THE CREST OF THE EMBANKMENT. THE RIPRAPPED CHANNEL FROM THE OUTLET OF THE PRINCIPAL SPILLWAY SHALL CONTINUE AT THESE DIMENSIONS TO A CONFLUENCE WITH EAST ROATCAP CREEK ALONG THE STRAIGHTEST REASONABLE PATH, TO BE DETERMINED AT THE TIME OF CONSTRUCTION. RIPRAP SHALL EXTEND UP SIDESLOPES OF CHANNEL CUTS TO AT LEAST 2 FEET VERTICALLY ABOVE THE TOP OF THE RIPRAP IN THE CHANNEL BOTTOM. 7) TWO FEET OF 12 -INCH D100 RIPRAP SHALL BE PLACED ON POND SLOPES WHERE CHANNELS ENTER THE POND. SUFFICIENT NATURAL BOULDERS AND COBBLES WILL BE PLACED AT THE JUNCTION OF THE CLEAR WATER DIVERSION DITCH, THE SPILLWAY CHANNEL, AND EAST ROAT CAP CREEK TO PREVENT EROSION OF THE CREEK BED. 8) RUNOFF DITCHES FOR THE TOPSOIL STORAGE PILE ARE THE SAME CONFIGURATION AS SECTION B -B', EXCEPT THE BOTTOM WIDTH IS 4 FEET. SUFFICIENT 12 -INCH D100 RIPRAP SHALL BE PLACED AT CULVERT ENTRANCES AND EXITS, AND AT THE JUNCTION OF THE RUNOFF DITCH AND BENCH �DITCH TO PREVENT EROSION AT THESE POINTS. Nov !003 J COLLUVIAL SOILS - �,,,TCAI 9. f _,dig 15888 :T iN.A• �.'ONAI DATE CHECKED REVISION 9 -II MSN NEW NOTES (RIPRAP), CHANGE B -B'TO T>10%) 10 -3,7 MSN MOD, FORD TOPSOIL STORA EP AREA RECIJmoim DIVISION COLORADO WESTMORELAND INC. P.O. BOX 1299 PAONIAe COLORADO 81428 eRc-HA b VA 6fLf0S7 POP7,ML.S Dcsi(f&_5 RUNOFF DIVERSIONS, SEDIMENTATION POND Designed by: MSN DATE: 8/17/86 4 -61N. DIAMETER CORRUGATED STEEL CONDUIT, SHEET NO. Drawn by: DL 10 IN. LONG, CUT IN HALF LENGTHWISE,TACK 241 N. DIAMETER 6 OF JO Chocked by: MB CORRUGATED STEEL Q 17301 WEST COLFAX AVE. SUITE NO.275 WELDED TO RISER PIPE CONDUIT RISER PIPE GOLDEN,. COLORADO 60401 863 -2032 004441 I 1 / 1 1 i 1 / 8 IN. i 1 I 1 / - MAXIMUM SEDIMENT STORAGE LEVEL i ELEV.7165.2 2 IN. OPEN AT TOP AND BOTTOM 2.3 FT. ABOVE BOTTOM OF 4 -1.5 IN.DIAMETER RISER HOLES, AT 90 0AROUND RISER WALL NOT TO SCALE DETAIL 1 DEWATERI NG DEVICE RISER PIPE GENERAL NOTES 1) A SUITABLE PROTECTIVE SCREEN OR TRASHRACK SHALL BE PROVIDED OVER THE PRINCIPAL SPILLWAY INLET. 2) ALL RIPRAP SHALL BE COMPOSED OF A WELL- GRADED MIXTURE OF DURABLE ROCK; MOST OF THE STONES SHOULD BE OF DjpO SIZE. MINIMUM RIPRAP THICKNESS SHALL BE AT LEAST EQUAL TO THE D100 SIZE, UNLESS SPECIFIED. RIPRAP SHOULD BE PLACE OVER A SUITABLE GEOTEXTILE FILTER OR FILTER BLANKET OF GRADED GRAVEL IN A LAYER 1.5 TIMES THE D100 SIZE. 3) CONSTRUCTED HEIGHT OF THE EMBANKMENT SHALL BE 5 PERCENT GREATER THAN THE SPECIFIED DESIGN HEIGHT. 4) A SEDIMENT LEVEL INDICATOR SHALL BE PROVIDED FOR MARKING THE SEDIMENT CLEANOUT LEVEL IN THE POND. 5) THE POND SHALL BE CONSTRUCTED BY EXCAVATING THE IN -SITU SOILS AND CONSTRUCTING THE DIKES FROM THE EXCAVATED SOILS: NO EXCAVATED (CUT) OR EMBANKMENT (FILL) SLOPE SHALL EXCEED 2(H):1(V). 6) RIPRAPPED SPILLWAY DOWN FACE OF THE EMBANKMENT WILL BE OF THE SAME DIMENSIONS AS THE EMERGENCY SPILLWAY AT THE CREST OF THE EMBANKMENT. THE RIPRAPPED CHANNEL FROM THE OUTLET OF THE PRINCIPAL SPILLWAY SHALL CONTINUE AT THESE DIMENSIONS TO A CONFLUENCE WITH EAST ROATCAP CREEK ALONG THE STRAIGHTEST REASONABLE PATH, TO BE DETERMINED AT THE TIME OF CONSTRUCTION. RIPRAP SHALL EXTEND UP SIDESLOPES OF CHANNEL CUTS TO AT LEAST 2 FEET VERTICALLY ABOVE THE TOP OF THE RIPRAP IN THE CHANNEL BOTTOM. 7) TWO FEET OF 12 -INCH D100 RIPRAP SHALL BE PLACED ON POND SLOPES WHERE CHANNELS ENTER THE POND. SUFFICIENT NATURAL BOULDERS AND COBBLES WILL BE PLACED AT THE JUNCTION OF THE CLEAR WATER DIVERSION DITCH, THE SPILLWAY CHANNEL, AND EAST ROAT CAP CREEK TO PREVENT EROSION OF THE CREEK BED. 8) RUNOFF DITCHES FOR THE TOPSOIL STORAGE PILE ARE THE SAME CONFIGURATION AS SECTION B -B', EXCEPT THE BOTTOM WIDTH IS 4 FEET. SUFFICIENT 12 -INCH D100 RIPRAP SHALL BE PLACED AT CULVERT ENTRANCES AND EXITS, AND AT THE JUNCTION OF THE RUNOFF DITCH AND BENCH �DITCH TO PREVENT EROSION AT THESE POINTS. Nov !003 J COLLUVIAL SOILS - �,,,TCAI 9. f _,dig 15888 :T iN.A• �.'ONAI DATE CHECKED REVISION 9 -II MSN NEW NOTES (RIPRAP), CHANGE B -B'TO T>10%) 10 -3,7 MSN MOD, FORD TOPSOIL STORA EP AREA RECIJmoim DIVISION COLORADO WESTMORELAND INC. P.O. BOX 1299 PAONIAe COLORADO 81428 eRc-HA b VA 6fLf0S7 POP7,ML.S Dcsi(f&_5 RUNOFF DIVERSIONS, SEDIMENTATION POND Designed by: MSN DATE: 8/17/86 Golder Associates SHEET NO. Drawn by: DL CONSULTING GEOTECHNICAL ENGINEERS 6 OF JO Chocked by: MB SCALE: AS NOTED Q 17301 WEST COLFAX AVE. SUITE NO.275 Approved by, GM GOLDEN,. COLORADO 60401 863 -2032 004441