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CDOT REVISED STANDARD M -606 -1 GUARDRAIL, TYPE 3, W -BEAM MOUNT DRILL 2 "0 WEEPHOLE ® 2' -0" O.C. C o _ 1 M N x x x a a33 3 N I I v N a GRADE J D o I 8x8 TIMBER LAGGING o \/\ GROUT a s s f n� G R INO.1 BY ICHKJAPPJ DATE I / ►O1 ON 03 ►O/ .-0. 15' -0" GRANULAR FILL 4' -0" OCOOOOI�oOO °o�oc \\ /\ 2'-0"0 2xL4x3x1 /2 CONT. 8X8 TIMBER LAGGING 0 1 5 I i 1 1 1 1 1 SCALE IN FEET 1/4 1/4 i a" W14X74, W14X99, OR W14X132 TYP. C SECTION: LAGGING SUPPORT - 1'-l'-O" 0 Ei" 1 2' Ls�_I I I I SCALE I HEREBY CERTIFY THAT THIS PLAN WAS PREPARED BY ME OR UNDER MY DIRECT SUPERVISION AND THAT BID 1 AM A DULY REGISTERED PROFESSIONAL E14ONEER CONSTgUCTIOI UNDER THE LAWS OF THE STATE OF COLORADO. DAT% REG. NO 30 YY 9 RELEASED REVISION DESCRIPTION TO /FOR COMMON BACKFILL 1' -0" BADLY WEATHERED ROCK WEATHERED BEDROCK I C 1 0 1 1 DATE RELEASED CDOT REVISED STANDARD M -606 -1 GUARDRAIL, TYPE 3, W -BEAM MOUNT DRILL 2 "0 WEEPHOLE O 2' -0" O.C. Comd:ll GROUT 0 i7 W1 4x211 PILE a TIMBER LAGGING i' 0 I 0 I in Nom\ 0 I in GROUT 15' -0" 1 4' -0" GRANULAR FILL A LTFRNI ATF ONLY 2' -0 "0 BOREHOLE 0 1 5 I i.l I 1 I I SCALE IN FEET 0 6" 1' 2' II�II1 I SCALE Ban. 9 8300 NORMAN CENTER DRIVE MINNEAPOLIS, MINNESOTA 555 WEST 27TH STREET �gn„W,y RIBBING, MINNESOTA 1 4 " =1 ' -0" 07 AUG 98 JXB MOUNTAIN COAL COMPANY CAK SOMERSET, COLORADO JXB WKC FLY ASH: 330 LB. RECEIVED WATER: 495 LB. THE REMAINING VOLUME WILL CONSIST OF: 6 FINE AGGREGATE 50X COARSE AGGREGATE 50x DIV. OF MINERALS 6.2 EXECUTION & GEOLOGY 6.2.1 CONTRACTOR SHALL PLUG OPENINGS BELOW LEVEL OF THE DESIRED BACKFILL THAT WOULD PERMIT ESCAPE OF THE MIX. 6.2.2 CONCRETE BACKFILL SHALL BE ALLOWED TO CURE FOR A MINIMUM OF 5 DAYS BEFORE COMMON BACKFILL IS PLACED. LANDSLIDE STABILIZATION ° m ' SYLVESTER GULCH SUBSTATION 06 26- 025 —WKC CLIENT PROJECT No. )ING #2 ROAD— RETAINING WALL STRUCTURE MCC - 9741 -14 SECTION, DETAILS, AND SPECIFICATIONS SHEET No. REV. N C FIGUFzkE= 2 All TECHNICAL SPECIFICATIONS 1.0 EXCAVATION, BACKFILL, AND COMPACTION 1.1 PRODUCTS 1.1.1 COMMON FILL: COMMON BACKFILL SHALL BE NATIVE MINERAL SOIL FROM THE SITE THAT IS FREE FROM EXCESSIVE MOISTURE, DEBRIS, ROOTS, ORGANIC MATERIAL, FROZEN SOIL, OR ROCKS LARGER THAN 12" IN DIAMETER. 1.1.2 GRANULAR FILL: SHALL MEET CDOT SPECIFICATION 206, CLASS 2, EXCEPT NOT LESS THAN 95X MAY PASS THROUGH A 3/4" SIEVE AND NOT LESS THAN 95X ARE RETAINED ON THE NO. 4 SIEVE. 1.1.3 SELECT GRANULAR FILL: SHALL CONFORM TO CDOT STANDARD SPECIFICATION 703.03, CLASS 5 WITH 100X PASSING THROUGH A 1 1/2" SIEVE. 1.2 EXECUTION 1.2.1 WITHIN THE PROPOSED RETAINING STRUCTURE AREA REMOVE ORGANICS AND SOILS TO WORKING LEVEL AS INDICATED ON THE DRAWINGS. DISPOSE OF SOILS AT THE DIRECTION OF THE OWNER. 1.2.2 BACKFILL SHALL BE COMPACTED TO 95X OF MAXIMUM STANDARD DENSITY IN ACCORDANCE WITH CDOT SPECIFICATION 206.03. 1.2.3 PLACE AND COMPACT COMMON AND GRANULAR FILL IN LOOSE LAYERS NOT MORE THAN 12" IN LOOSE DEPTH TO THE LINES AND LEVELS INDICATED ON THE DRAWINGS. 1.24 PLACE AND COMPACT SELECT GRANULAR FILL IN LOOSE LAYERS NOT MORE THAN 8" IN LOOSE DEPTH TO THE LINES AND LEVELS INDICATED ON THE DRAWINGS. -COMMON BACKFILL 2,0 ROCK BORING 2.1 EXECUTION 2.2.1 DRILL CONCENTRIC AND VERTICAL SHAFTS TO DIAMETERS AND DEPTHS INDICATED THE SHAFT SHALL BE CHECKED FOR ALIGNMENT AND PLUMBNESS. 2.2.2 IF REQUIRED, PLACE STEEL LINERS IMMEDIATELY AFTER CONSTRUCTION. 2.2.3 CLEAN SHAFT AND BOTTOM OF LOOSE MATERIAL. MAINTAIN SHAFTS FREE OF WATER, LOW STRENGTH 2.2.4 PREVENT LOOSE MATERIAL FROM FALLING INTO SHAFT PRIOR TO PLACING PILE -CONCRETE AND GROUT AND UNTIL GROUT HAS SET. BACKFILL 3.0 GROUT 3.1 PRODUCTS 3.1.1 GROUT SHALL BE NON- SHRINK TYPE CONSISTING OF PRE -MIXED NON- METALLIC BADLY AGGREGATE, CEMENT, WATER - REDUCING AND PLASTICIZING ADDITIVES, CAPABLE WEATHERED OF DEVELOPING A MINIMUM COMPRESSIVE STRENGTH OF 5000 PSI AT 28 DAYS. ROCK 3.1.2 GROUT SHALL MEET ASTM C 1107 GRADE C STANDARDS FOR DIMENSIONAL STABILITY AND COMPRESSIVE STRENGTH. 3.1.3 GROUT SHALL BE CAPABLE OF MAINTAINING A FLOWABLE CONSISTENCY FOR 45 MINUTES AT 7(rF UNDER ASTM C 230, USING 5 DROPS IN 3 SECONDS 3.1.3 MIXING WATER SHALL BE CLEAN AND FREE OF OILS. 3.2 EXECUTION 3.2.1 ALL SURFACES TO BE IN CONTACT WITH GROUT SHALL BE FREE OF GREASE, OIL, OR OTHER FOREIGN SUBSTANCES. 3.2.2 GROUT SHALL BE MIXED IN ACCORDANCE WITH MANUFACTURER'S RECOMMENDATIONS. WEATHERED 3.2.3 GROUT MAY BE DRYPACKED, FLOWED, OR PUMPED INTO PLACE, BEDROCK 4.0 STRUCTURAL STEEL 4.1 PRODUCTS 4.1.1 ROLLED SHAPES: CONFORM TO ASTM A36. 4.1.3 WELD MATERIAL: CONFORM TO AWS DIA. TYPE REQUIRED FOR MATERIALS BEING WELDED. 4.2 EXECUTION 4.2.1 WELD IN ACCORDANCE WITH THE REQUIREMENTS OF AWS WITH E70XX ELECTRODE. FOR WELD SIZES NOT INDICATED. DETERMINE THE SIZE IN ACCORDANCE WITH AWS. 4.2.2 FABRICATE STRUCTURAL STEEL IN ACCORDANCE WITH THE REQUIREMENTS OF AISC. 5.0 TIMBER 5.1 PRODUCTS 5.1.1 LAGGING: ALL LAGGING SHALL BE PRESSURE TREATED NO.1 DOUGLAS FIR /LARCH, 5.1.2 LUMBERS AND TIMBERS SHALL BE TREATED IN ACCORDANCE WITH AMERICAN WOOD PRESERVERS ASSOCIATION (AWPA) C2 WITH WATERBORNE PRESERVATIVES LISTED IN AWPA P5 TO A RETENTION LEVEL OF 0.40 KILOGRAMS PER CUBIC METER. 6.0 LOW STRENGTH CONCRETE BACKFILL 6.1 PRODUCTS 6.1.1 ONE CUBIC YARD OF MIX SHALL BE PROPORTIONED AS FOLLOWS: CEMENT: 165 LB 1 4 " =1 ' -0" 07 AUG 98 JXB MOUNTAIN COAL COMPANY CAK SOMERSET, COLORADO JXB WKC FLY ASH: 330 LB. RECEIVED WATER: 495 LB. THE REMAINING VOLUME WILL CONSIST OF: 6 FINE AGGREGATE 50X COARSE AGGREGATE 50x DIV. OF MINERALS 6.2 EXECUTION & GEOLOGY 6.2.1 CONTRACTOR SHALL PLUG OPENINGS BELOW LEVEL OF THE DESIRED BACKFILL THAT WOULD PERMIT ESCAPE OF THE MIX. 6.2.2 CONCRETE BACKFILL SHALL BE ALLOWED TO CURE FOR A MINIMUM OF 5 DAYS BEFORE COMMON BACKFILL IS PLACED. LANDSLIDE STABILIZATION ° m ' SYLVESTER GULCH SUBSTATION 06 26- 025 —WKC CLIENT PROJECT No. )ING #2 ROAD— RETAINING WALL STRUCTURE MCC - 9741 -14 SECTION, DETAILS, AND SPECIFICATIONS SHEET No. REV. N C FIGUFzkE= 2 All