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1601 Sth Avenue, Suite 1600 <br />Seattle, WA98101 206622-5822 <br />project EVERGREEN PUBLIC LIBRARY <br />by CB <br />sheet no. <br />location EVERETT <br />date 12/14/18 <br />client CITY OF EVERETT <br />job no. <br />1700170 <br />BOYANCY CALCULATIONS <br />UNIT WEIGHTS <br />WATER = <br />62.4 LBS/CF <br />CSBC = <br />137 LBS/CF <br />GRAVEL BORROW = <br />140 LBS/CF <br />HMA = <br />152 LBS/CF <br />SUBMERGED CSBC = <br />75 LBS/CF <br />SUBMERGED CONIC = <br />88 LBS/CF <br />BUOYANT FORCE <br />DIAM = <br />8 FT <br />LENGTH = <br />115 FT <br />VOLUME= <br />5,781 CF <br />BUOYANT FORCE = <br />360,705 LBS <br />SOIL & PAVEMENT WEIGHT ABOVE TANK <br />TANK FOOTPRINT= <br />920 SF <br />HMA DEPTH = <br />3 IN <br />HMA WEIGHT = <br />34,960 LBS <br />CSBC DEPTH = <br />4 IN <br />CSBC WEIGHT= <br />42,013 LBS <br />GRAVEL BORROW DEPTH (AVE) = <br />24 IN <br />GRAVEL BORROW WEIGHT = <br />257,600 LBS <br />CSBC DEPTH = <br />12 IN <br />CSBC WEIGHT = <br />126,040 LBS <br />TOTAL = <br />460,613 LBS <br />ANCHOR WEIGHT <br /># OF ANCHORS = 10 <br />CONCRETE VOLUME = 16 CIF <br />SUBMERGED ANCHOR WEIGHT = 14,080 LBS <br />SOIL & PAVEMENT WEIGHT ABOVE ANCHORS <br />ANCHOR FOOTPRINT= <br />80 SF <br />HMA DEPTH = <br />3 IN <br />HMAWEIGHT= <br />3,040 LBS <br />CSBC DEPTH = <br />4 IN <br />CSBC WEIGHT= <br />3,653 LBS <br />GRAVEL BORROW DEPTH (AVE) = <br />24 IN <br />GRAVEL BORROW WEIGHT= <br />22,400 LBS <br />CSBC DEPTH = <br />12 IN <br />CSBC WEIGHT= <br />10,960 LBS <br />SUBMERGED CSBC DEPTH = <br />6 FT <br />SUBMERGED CSBC WEIGHT = <br />36,000 LBS <br />TOTAL = <br />76,053 LBS <br />TOTAL WEIGHT= <br />550,747 LBS <br />SAFETY FACTOR <br />SAFETY FACTOR <br />610 24° FRAME AND <br />COVER (TYPJ FITTINGS <br />AS REQUIRED <br />36" ACCESS RISER <br />LADDER RUNGS (TYP.) <br />PAVEMENT PER PLAN <br />BEYOND (TYP.) <br />SUITABLE NATIVE OR <br />GRAVEL BORROW AS <br />DIRECTED BY <br />GEOTECHNICAL ENGINEER <br />F. <br />GALVANIZED STEEL TIE <br />_ <br />SD PIPE(S) <br />DOWN STRAP (TYP) <br />PER PLAN <br />\� 2'x2'x4' ECO <br />TAPPING TEE <br />SEE NOTE 1 <br />(TYP) <br />�" (PRIOR TO FABRICATION <br />\BOCK <br />VERIFY EXISTING UTILITY <br />CROSSINGS TO AVOID <br />SEE NOTE I <br />CONFLICTS) <br />// 1 <br />i <br />COMPACTED CSBC <br />DETENTION TANK (TYP.) <br />NOTES: <br />BACKFILL IN AND AROUND <br />6° CSBC <br />ECO BLOCKS WITH CDF <br />1. 1:1 LAYBACK SLOPE IS ASSUMED FOR PERMITTING PURPOSES. CONTRACTOR <br />SHALL FIELD VERIFY MEANS AND METHODS BASED ON SITE CONDITIONS. <br />DETENTION TANK SECTION <br />B <br />czD <br />BOYANCY.As <br />