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n A 8 8 0 a 6940 1 1 1 1 1 1 1 1 1 1 1 6940 6920 % PASSING BY WEIGHT — — — — — — — — — — — — — — — — — — — — — — — _ _ _ I _ _ _ _ — — — — — — — 6920 275 LBS — — —i II — — 2 -10 I - — — — - — — — -- i II — — — — — — I - — — — II I— — — — I II + — — — 6900 BID --- 6900 6880 — — — — — — — — + r — — —i — — — — — — — — — — — — F— — — — — — — — — — i — — 6880 6860 — — — — I I — i — — — — — — I — — — — — I — — — — — I �- — — — 6860 6840 —i — — — — CLIENT PROJECT No. MCC -9741 -1 4 - — — —i — — — — — — i- — — — — — F - — — — —I 4/ — — — — — — — 6840 6820 — — — — — — — — — - BED COURSE + I — II — — — — — — / / 6820 6800 — — — — I — I — — — — — — I — LARGE RIPRAP — — I — — I — — C �-/ / / I — — - - — — — — — 6800 KXL SHEET No. REV. No. A N0. BY CHK. Exposed ce DATE REVISION DESCRIPTION DATE RELEASED Approved 6780 — — — —i — — - h— — — — — — � — — — — F- — — — — - — — + — — - — — 6780 Substation Pad I I I o I I Bedrock 6760 — — — ____7 -- — — — — — — — — — — —{ — — -}- — — — — — — 6760 6740 — — — — — — — — f — — 6740 i 0 2 40 SCALE IN FEET 6720 0 +00 CLAY CA^ GRANULAR BACKFILL, SEE NOTES 1 AND 2 V) M W X Q � 0 N I 1+00 3' APPROXIMATE WIDTH OF BUCKET SECTION: TRENCH DRAIN (TYPICAL NOT TO SCALE 1 2 +00 NOTE 1. TRENCH FILL, BED COURSE, MATERIAL SHALL MEET THE REQUIREMENTS OF THE STATE DEPARTMENT OF HIGHWAYS, DIVISION OF HIGHWAYS, STATE OF COLORADO, STANDARD SPECIFICATIONS FOR ROAD AND BRIDGE CONSTRUCTION, SECTION 703.07. SIEVE SIZE % PASSING BY WEIGHT 3" 100 NO. 4 20 -65 NO, 200 -1 NOTE 2: RIPRAP MATERIAL SHALL MEET THE REQUIREMENTS OF THE STATE DEPARTMENT OF HIGHWAYS, DIVISION OF HIGHWAYS, STATE OF COLORADO, STANDARD SPECIFICATIONS FOR ROAD AND BRIDGE CONSTRUCTION, SECTION 506.02. NOMINAL SIZE OF RIPRAP TO BE USED IS 12" IN AVERAGE DIAMETER. % SMALLER THAN TYPICAL STONE TYPICAL DIMENSION TYPICAL WEIGHT 70 -100 21" 440 LBS 50 -70 18" 275 LBS 35 -50 12 85 LBS 2 -10 4 3 LBS 1 3 +00 1 4 +00 5 +00 6720 RECEIVED CCT 6 DIV. OF MINERALS & GEOLOGY FIGURE 4 I HEREBY CERTIFY THAT THIS PLAN WAS PREPARED BY ME OR UNDER MY DIRECT SUPERVISION AND THAT I AM A DULY REGISTERED PROFESSIONAL ENGINEER UNDER THE LAWS OF THE STATE OF COLORADO CLIENT 9 29 qmrmk 8300 Barr MINN NORMAN CENTER DRIVE MINNEAPOLIS, MINNESOTA En ineerin Com on HBBING, MINNESOTA g g p y Scale AS SHOWN MOUNTAIN COAL COMPANY SOMERSET, COLORADO LANDSLIDE STABILIZATION SYLVESTER GULCH SUBSTATION BARB PROJECT No. 0 6 / 2 6 - 0 2 5 - W K C BID Date 29 SEP 98 CONSTRUCTION Drawn KXL CLIENT PROJECT No. MCC -9741 -1 4 Checked GRAVEL DRAIN TYPICAL CROSS SECTION DATE- REG. No. RELEASED TO /FOR A B C 0 1 2 3 Designed KXL SHEET No. REV. No. A N0. BY CHK. APP. DATE REVISION DESCRIPTION DATE RELEASED Approved FIGURE 4