|
Landslope > 1% slope
<br /> � G. :'�IOUND SLOPE WIDTH &LENGTH ' '
<br /> � . (landslope greater than 1%) ���r
<br /> 1. Downslope absorption width= absorption width (F) �,,rt�f`�$�4k�bA '� `��, �'����t� 6•Topwll
<br /> minus rock layer width (D2) _ ,_ ;��,���cF �,N,�G�.�s.���e r �rF;.k��r,�,a. __ : -.
<br /> ,,.a..,, c,�� k>, i?'�',.�ti�.�r�':n.;.
<br /> �� .�7 ft- 1 o ft= �ft P.r.do�h
<br /> � AeNrkting L�yw .
<br /> �� • `
<br /> � - Uplop� 1h(Gld) Rock W14th(DI) �O"^�.��WN(C71)
<br /> h 2. Calculate mound size ��
<br /> � UPSLOPE
<br /> �
<br /> ;� a. Depth of clean sand fill at upslope edge of „�Wa,�•�«,
<br /> � rock layer = 3 ft minus the distance to restricting layer (C1) �1�.!
<br /> a� f -�ft .
<br /> 3 ft- . �� t- �' . D-34: SLOPE MULTIPLIER TABLE
<br /> ?; b. Mound height at the upslope edge of rock
<br /> la er = denth of clean sand for separation (G2a) Land UPSLOPE DOWNSLOPE
<br /> Y r in X multlplicPenr tlw rious mul alo,pe ntioc uiouc
<br /> ;� at upslope edge plus depth of rock layer(1 ft) _,�
<br /> �� plus depth of cover (1 ft) :� +:� :� e: �:� e: :i 4: • 6:1 �:�
<br /> �� � 0 3.0 4.0 S.0 6.0 7.0 8.0 3.0 4.0 5.0 6.0 7.0
<br /> ,�.� ft + lft+ lft = �.•.a ft
<br /> c. Upslope berm multiplier based on land slope ' �.91 3.85 4.76 s.� esa �.+� 3.09 �.�� s.� 6.se �ss
<br /> �,l �j (see figure D-34) � za� 3ao �ss ssb 6.14 6.90 ai9 �.ss s.s6 e.az e.ia
<br /> 3 2.75 �357 �.35 5.08 5.79 6.45 3.30 C 4.54.� 5.88 7.32 B.B6
<br /> d. Upslope width = berm multiplier (G2c) times 4 z.� 3.,s �.,, a.e� s..� 6.0� �.a� a.�e 6.25 7.89 9.�z
<br /> upslope mound height (G2b): 5 z.bl 3,� �.o0 4.� s.i9 s.ri 3.53 5.00 6.67 as� io.��
<br /> '7 �'-� )( ,�,.� ft =.1:�_ft 6 yu 3.23 3.85 4A1 4.93 5.61 3.66 5.26 7.1� 9.38 1Z07
<br /> DOWNSLOPE � 248 3.12 3.70 �.73 4•70 5.13 3.80 556 7.69 30.34 13.73
<br /> e. Drop in elevation = rock layer width (D2) times e �.a� s.o3 s.s� •.os �.�9 ..ee 3.95 s.ae e.� ��.s. �s.9�
<br /> percent landslope (C5) '{' 10� 9 236 294 3.45 3.90 f.30 4.65 4.11 6.Z5 9.09 13.04 18.92
<br /> ��-� ft X �%' %T 1�� _ �f�> � ' 10 2.31 286 3.33 3.75 4.12 f.�4 �.29 ' 6.67 ]0.00 15.00 2333
<br /> f. Downslope mound height= depth of clean 11 �e z.�8 3.73 3.61 3.95 4.Z6 4.48 7.14 1111 ]7.65 30.43
<br /> sand for slope difference (G2e) at downslope u �1 z.�o 3.�z 3.49 a.eo ..oe �.69 �.e9 12.50 21.43 a3.�s
<br /> rock edge plus the mound height at the
<br /> upslo e edge of rock layer (G2b)
<br /> 3�� ft+ � "? ft= 'z;,� ft K t.���'.-`�.,�
<br /> g. Downslope berm multiplier based on percent land slop
<br /> y���} (see figure D-34) ��, �
<br /> h. Downslope width = downslope multiplier � � � �.�� Ups�o�W,dwc�,a> �2r
<br /> (G2g) times downslope mound height(G2� �zl . .�Lc2� ��
<br /> Rock Bed ) U alo e Width(G2d)�
<br /> I� ,�_X 3�� ft= 17 ft v:,'� ���7 � � uP.io�w�ae,ccsa) i�g��)�t��� P P f� `-12
<br /> i. Select the greater of G1 and G2h as the �
<br /> downslope width: ��=� ft � , Downslope Width(G2q �« ft
<br /> �`� Abwrption Wldth(F) ��
<br /> j. Total mound width is the sum of upslope �� .
<br /> width (G2d) width plus rock layer width .,. .. _ �.,�� - t-=- � ` -
<br /> (D2)plus downslope width (G2i) To�,�,gw c��>Ls2�f�
<br /> 1 'L ft+ �� ft+ G���� ft= �}'� �t
<br /> k. Total mound length is the sum of upslope width (G2d)
<br /> plus rock layer length (D�)p�_l���s upslope width (G2d)
<br /> ',�_ft + t�2. ft+ aca ft= �`���feet
<br /> ��, �_ �;� � !- �z,�.' ��7 Final Dimensions:
<br /> „ X _ .
<br /> , j z.:. ,:,, .
<br /> I hereby certify that I have completed this work in accordance with applicable ordinances, rules and laws.
<br /> (signature) � ' ' (license#) (date)
<br />
|