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<br />TW O RIVERS EN GINEERING . ; . � � ' , ;, � ; `� � �^ �. ��
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<br />Cit of Evcrett � � 1 ( / ✓ � �� ( ( f��
<br />y �: , � August4,"1996 ��� � ��(
<br />3101 Cedar St. , .
<br />Everett WA 98201 " ' ,+, ' � �": ,, I 9 � � ., . i �
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<br />Attention Jane Zimmerman �� ' � �� �, 1 •�'
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<br />� a� ,'_ RE: Lcibold Watercraft Dealers64P . , ��(' �� ,,
<br />, DrainageDesign ; J��'( , �
<br />DearMs.Zimmerman: � ��, -(�'
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<br />Enclosed a copy of the revised project design for the subject project which was diseussed � ��`� �
<br />in your officc on July 26th. ,.i� -+�
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<br />The reviscd drainage plan reflects the passage of all tlows to the wctpond and sendin�,;. ;; ��
<br />excess storage to the underground piped storage system. Thc wetpond storagc has becn'' .',�-�
<br />SBUH olume. The orifice d sign n the paped storage eetl cts 1) th eneed to have a ear 1`s '` ", � �
<br />mincr amount of tlow storeci due to site restraints on I.he we f�ond volume and 2) the 10 ' -- c
<br />ycar discharge orificc will handle both ihe 10 ycar aad 100 ycs� evenls due to the �``
<br />signil'icant increase in hcad on that orifice compareci to the amom�t of additional storage' ,- `��� �<`
<br />requircd to accommoclatc the 100 ycar event. These dcsign changes mcet both City and ,, f,�; j�� �"�
<br />WADF&W criteria.
<br />Thc revised utility plan shows a looped 6" water main instead o` t;ie 8" line previously, ,.`-�� � � S,�(
<br />shown. ., G{J�r�v; �
<br />After your revicw, plcase call mc if you have any questions regarding thc design . The �.i c�
<br />weather. awaiting your permit to begin construction so the earthwork is done beforc wet' �, ;, . I
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<br />copy Mike Leibold
<br />Gary Parkinson Archilects
<br />W A D e p t o f F i s h & W i l d l i i c
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<br />Yours Truly ! r ;'� '
<br />Two Rivers Engincenng ��; I (.(Y�"� `
<br />,�eS�s-�--�_ /Y�'C'"�`Y` v'�1`'��"7 f.ti�
<br />Thomas M. Kearns P. E. . f 1 �`
<br />Principal ( .`f I �j -��
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<br />ak�i. �ermk Co�nfer � .
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<br />1125 DARRINGTON ST. P.O BOX 339 DARRING'fON, WA 98241 (206) 436-1524 �;:-� U���
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