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HomeMy WebLinkAboutB12-0372 Plans Approvedc � � a^\V`�m - � p �� e ' �, P O �` _ " �; � �r � i�T RT 1 . ��$ -.�r AM RT ftM }�r AM i'RE�ERVE EkI�TING DRY-5TREAM A� P0�1� 12�MaV� AND i�}'1.A�� STDKE A�TLR GQMPL�TION 0� WALL WOfiZK A5 N��t7�D '�i1 i� + f'f2E�RV� �XISTIN� Lf��1D5GA1'� A'� Pt�'aIBL� l�+�rc+�Q) �o� ,ar� �r�+o�i��a�tr��� �o� 1 W�i l�'� ��� GOM�I,.�TION D� WALL WC1RK 1�5 N�EI?�I? i�Ei'LAG� fAIUI�E'i C?RY�TAGK WALI.� �5` MftX. HT.j 11511� D�TAIL ItiNiS ��T � � ���� � �� � ���� � ��� , • •- + �,'°° 9 ;°,� � ` _ � �, ��i� + } + EDCE O� I�SPHt�LT � --�_�����r�.�rn.�r..�..+.�. .�..�s..o �.�...r.. �..��n�.��. �...��. ���..�..��.�..�...�n.�...r �'ROP�RTY LIN� N87°3�f'3�1"W - I15,31' + -F- � ,� ; _ -------- - - ; : ` � i ; � �� r � X .... r i � "'Y t i � r t 4 t � j -_,a, Li- � �� t �� i i �aa � ' I � � + + +� � � `�� ,` .. � + t.. , _ __ i �_ + ` __ � 1 � � + + � �� ' , � ��� �� � �� _ ������F���;�-�.r��=�..��� r:� §���t�����u.��e , } ,_� , Au�ust 9, �0 � 2 Ceresa-���sc�p� .�r�l�it��iure r�.ii�t: �"��rl N�dir►�, P. t�, &�x 21a4 �agie. �c�ioractc� �i l63 i ���ti! �cer•e�_pitrs,c�j Job ��, 1�8 52�� �ubjcet: R�t�mm�ndtttio�t� fi�r D�ign ofBlc�ck Sitc itstaina�z��; Watls, �xist�c�g itesidenc:�, L�t �, �iiing I, �Ieni �neintx �ubdivisiraa�, lfi�`7 �3�t�'�hr C,`r�k ��aci, 'i�ail, C��al�r�dcr �car Aaui: As reqac�sed, �_� �re prcrvicling recc�tnr�tc���atio�s f�r bl�ck si�e rtiai�in� wat ls At �he su�bject site. �i�e servi��s s�re �.�rfoinm�:c� in �c�rd�ncc::� wi�� our ugreemcnt fcrr pro#essional s�etices tc� C�rrs�-T,,�ndsct�p� Archft�ature d�ted, Jt�ly 13y 2�1�. '�"he �r�c�ingc +�f c�ur rtccvnunctadr�tao��s fnz� th� c���i�rs �re pres�nte>�i ir� ihis r�rt. Ti�e sit� retttiruti� �ali� �viti rc}�I��� �xisiuz�; stack�,� roctc wa11s �t the sit� that �av� #�iletl, ii �c ci��ired to rerilac� t1� ��ai1s �s�it1� �ravity �oncretc bl�cks �v�11s and pinc� ch� arctiit�c�u���l rr�ck c�rs thu frc�nt sid� o3'the blca�ks, i`he v�a31s ��ill r+ep�rtally �c a s�aaxim�tm af�'n t�et irt h��ght �%� tlae �roun;d s~usf�c�. �'r�-ca� (solid) �a�cr�k� blocks G�cct bi��; by "� fcet I�i�li by 2 fc�t dcep �n�l w�i�hin� abrrut �,00{} Ib�. each �rc: tfesir�d as th� h1ac�;s. �ep�vurth-i'awlak �icc�technicat pre�iausl� �it�s�r+�� a p�r�i�r� o�"tlx� exc��vatinn �`c�r thc resic�en�e u� th� sita w�n �nder �r�nstrue:t'rcr�� �r�� suE�rr�itte�i �ur �ndin�s i�� � x�ptr�t �i�tc�l ��pccFrnt�r 22, �#�I�, �vb Nc�. l�� S29t1. 'ih�sofls �ai�si�ted �Ent�tliumd�..ns�, silEy sandy ��rav�l ��u�th c�bk�l�s. �i� #yr� �vater �uas tsbs�rved at �1�� tiz��c oi'thc �c�avatian. ���sec! zar� our an:�lysis a�yci �x}�ericnce, the pro�seci pareHcast bk>�k wali�°pt�c� to � f�eight ���'ia fer:t wii] be rn�tgiza�tlly st�ble due excessiv� toe pre�sure ut fh� base �if th� ��all. 1�re re�carnxnend g�o-�icl reS�ifar�e�l �+�r�Cll beh�nd the walts b� ust�fi t�, ir�cr�s�se tl�e ��{all stabsl�tv. �1 gecr-�;r�d rei�tfr�rc�3 �v�ll to abciut ��'a�et talf 'rs fcasible xvitl� the limi#eti re�rnrncmfec� gea-�-id t���k�li ruinfc�rcem�#. `�`h� �en-�ri�[ sltauld ctrns-ist +��`� uniaxi�t n��teriat such as "1'�ar L�� lUUO ar c;quivalcnt. The gec+-grid slxaulci be plt�ceci E�et�vicen e�cl� 1�yer c�fblaz;ks and �xtend � l�ngth af'at iiast 2 fe�t %ehind the walls. `]"hc �x�ll a�d �e�-�ad backfill e�r� c�nsis# �fthc �r��site s�"tis c:o7i���elc�i tc� at l�as# �.�°la star�clarci �'rc�ctar densit}� at a mai�t�irc� cont�nt n�r c�ptitnu�n. ,'.kfl`?ct'; .'�_"s,. ����^) � .a�, .��?;a� t-3iw ,�i�t,i>7}:i� v «;t... ,� t�,�� , . . �s?ci'°3�i'ii3i` �,� ?(��` ����!�"� � - -____— _ � � �, t Q�.y�! � Vi �� � � � + ia-i � =-•�'�+�.�.. �� � + � :�.) � � � u "`,,,,,'°- o � � � {�eres-�L.ancl�cape Architecture August �, 2�?12 Pa�e � ,ri iy�i�;al ci�tt�il �for si��gle iier wull usir�� 2 fect dee� co�icret� bl�a�:ks u� tc� 5 fe�# tall �s�it�h 2 fe�t o#`gca-gricl reir��`c�rced backfi[I is prc�vicic.�ci �ta �'i�ure i. Tt�e wall� shc�uld bc::►r nx� a mi»i�nu�t� G�nc;he� ��fGi)C�T �lass 6 bas� caurs� anci t�e �rrtbec3ded a mini�nuz�n 12 in4hes bc;lo�� ihc �rourul surfz��e. Tlic b�sc ccsurse shpuld be �:am��+„t�i tc� at least 9S°l� stanciar�i Pr�ctor ctt�nsi�y (AS`I','M t�G98) at a�r�isturc ec�nt�t near optr�z�ur��. �ric�r tc► the b�sc c:cii�rs� pl�cerr�ent, th� s�b�rade shot�l�3 bc mc>istr:necl an�i ccam�acted. r� iir�in slira�ttc3 hc prc�vicicd belsa�d thc �valls tti�d consist at'a A�ncl� ttia��tct4r perforatcxi pipe plaeeci nr:ar ii�c bottant c�f the 4va31 s�rrotx►�ed by drain �ravel. "t`he draizx �ravel shc�ulel t�e cc�vere�i tay filter ��bric �u�#� as �lira�`i 14C1i�. ifw7ll #�ei�;hts �rci are taller frc.�m thos�. tive have assuine�3, we shc�uici bc c,�ni���;tc�3 to revie�v aur tlesign rec,��tmend�tioas. �vi�a� �;:ld mc�c{i�c�tin�.� to thc �v�ll r�esi�n m�y be ncetic�i. We shoulc� observe the sabgrade cnndit�Q��s bts3�w th� walls, and test co�nps�ctian �fthc bu.�e ec�urse bciow the walls ur�# the wt�E� b�ckfill on a re�ular basis durin� c�nst,ructi�on, lfyou tu��re aray questic�r�s +�t� �tccci furtl�er assist�nce, pleas� cal� aur uffi��. �inc�rcly> HEPV►��ItTH �,�.,�WLA�. GEf7'C"�C1°�NIC�►1.<x 1i�C. S7avid A. 1'�tu�g� P� � c '�' ����1� I.7A�t,'kstv i�d,.c��:;'�°�`"'�` ������������ attachment Iii�ure i,'�tte�W� sot� ���. rotc sa;�e I'�+1-) 2�(+f-) 2' -.. - t, � 4.` � �� ������� � , ����. ��'������ ����� ������� .9��ig°� R ��.n..,�u"�������x ����.�a�` �� ���-�� ��M����..,�%�� d� �. �- �- ��� ° � w�, ,.,�.� �-���:���:. ������� ��� � � _�� .�.����� .r_ . ��: r c���l�r � � _ , : .. � _' . � .� . .. ., .. : t _ � _ W :. _ 4.,_ �_. � t } � _ �, ,. . .:.. , .i� .. � , � .. 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