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� (landslope greater than 1%) �,a, <br /> � 1. Downslope absorption width = absorption width (F) ' �� �o�r:- y - <br /> 6"ToPsoil <br /> minus rock layer width(D2) �_,,,_, :� ean5and h r <br /> � ft - ( o ft = t 6 � pandon ft _. ' - .�.�.� <br /> Reurictu�g La� <br /> UW�'P`�hfa� RockWidthrD2) D�`�m'bP`MM1da(Qi) <br /> 2. Calculate mound size <br /> UPSLOPE <br /> a. Depth of clean sand fill at upslope edge of Abwryuon Wid�M•S�nd(Fl <br /> rock layer =3 ft minus the distance to restricting layer (C1) <br /> 3ft- ��'S ft = �•� ft <br /> b. Mound height at the upslope edge of rock D"34: SLOPE MULTIPLIER TABLE <br /> layer = depth of clean sand for separation (G2a) cu,a vrsLorE DOWNSLOPE <br /> at upslope edge plus depth of rock layer (1 �) Slo� muitip�forvarious multipllPersforvadous <br /> In sl e ntlos slo e raUos <br /> plus depth of cover (1 ft) 3:1 4:1 5:1 6:1 7:1 8:1 3:1 9:1 i:l 6:1 7:1 <br /> (-S ft+ lft + lft- 3•� ft 0 3.0 4.0 5.0 6.0 7.0 8.0 3.0 6.0 5.0 6.0 7.0 <br /> c. Upslope berm multiplier based on land slope 1 L91 3.85 4.76 5.66 6.51 7.#1 3.09 4.17 5.26 6.38 7.53 <br /> �-�� (see figure D-34) Z 283 3.70 4.54 5.36 6.34 6.90 3.19 4.35 S..i6 6.82 8.14 <br /> d. Upslope width = berm multiplier (G2c) x ' l�s s.s� a.ss s.ae s.� s.as 3.so asa 5.88 �az a.ee <br /> upslope mound height (G2b): 4 z�e 3.45 4.i� a.sa s..� 6.os a.�i a.�b 6as �.ss s.n <br /> i 2.61 3_ 3 4.00 4.62 5.19 5.7I 3S3 �.00 6.67 B.Si 10.77 <br /> �•�-3 X �^� ft =�ft 6 iSt 313 3.85 4.d1 4.93 S.il 3.66 5.26 7.14 9.38 12.07 <br /> DOWNSLOPE 7 2.�43 3.12 3.70 4.23 4•70 5.13 3.80 5.56 7.69 10.3�i 13.73 <br /> e. Drop in elevation = rock layer width (D2) x e :.3z 3.0, ,.;, a.os a.�9 a.ee 395 s.�e 8.�3 ��.� �s.9� <br /> percent landslope (C5) = 100 9 236 Z94 3.35 3.90 4.30 4.65 4.11 6.25 9.09 13.00 18.92 <br /> �� 1� X s %- 1�� = j � 1 L 10 Z31 Z86 3.33 3.T 4.12 4.�14 a19 6.67 30.00 15.00 23.33 <br /> f. Downslope mound height= depth of clean u =z6 �.�8 3.� 3.61 3.95 a.�e �.� �:�4 ��.n ��.6s �o.;s <br /> sand for slope difference (G2e) at downslope u �1 z�o 3.12 3.49 �.so .�.os 4.69 7.69 �z.so :�..� .3.�s <br /> rock edge plus the mound height at the <br /> upslope edge of rock layer (G2b) <br /> 5-� ft+ . S ft= 4_ � ft <br /> g. Downslope berm multiplier based on percent land slcy <br /> �-��= (see fgure D-34) <br /> h. Downslope width = downslope multiplier •= Upslope Width(G fd) <br /> (G2g) times downslope mound height (G2� I <br /> �C�' X �-'(-J ft= '�'.r � Q Rock Bed Vpalo�Width(G2d) <br /> .y Upslope Width(G2d) Widlh(D2) h <br /> i. Select the greater of G1 and G2h as the � " ``"gw`D3, <br /> downslope width: � ft ,� �w��oP�w;dw<�z, f� <br /> Absorptiori Width(F� <br /> j. Total mound width is the sum of upslope �y <br /> width (G2d) width plus rock layer width <br /> (D2) plus downslope width (G2i) Total Lmgth(G2k) f� <br /> ► �- ft + i � ft+ � ft = 9' a- ft <br /> k. Total mound length is the sum of upslope width (G2d) <br /> plus rock layer length (D3) plus upslope width (G2d) <br /> 1�- ft+ G�� ft+ 1 Z ft= �2. feet <br /> Final Dimensions: <br /> 8'7 � x �-�-l <br /> I hereby certif at I ha e c pleted this�vork in accordance with applicable ordinan�es, rules and laws. <br /> z'`��'`-C (signature) � J�� (license#) 04 - Z 1 - !1`�(date) <br />