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HomeMy WebLinkAboutB14-0216 Soils Report � Department of Community Development 75 5outh Frontage Road TOWN OF VAf L � vai�, CO 81657 Tel: 970.479.2128 www.vailgov.com Development Review Coordinator TRANSMITTAL FORM Use this form when submitting additional information for planning applications or building permits. This form is also used for requesting a revision to building permits. A two hour minimum building review fee of$110 will be charged upon reissuance of the permit. _ _ ApplicationlPermit#(s) information applies to� Attention: ( ) Revisions //�� /"ti ''1 f /_ �i� Jt/�(� ` ( ) Response to Correction Letter —� �l 0" �G�' � �' �► i attached copy of correction letter �-�I U _ ��,�� (�)��D ferred S mittal ��,p , _) I V � � (�'l�ther ��! � �Cr U�.� • _ . . . Project Street Address: ��� n� i �__ �� �� � (� ✓�- � '��— ° � I lrr� v� (Number) (Street) (Suite#) Building/Complex Name: : Description of TransmittaU List of Changes, Items Attached: _ _ _ : �o � Js ��-�r"� � �►�- - Applicant.lnformation �'� (architect, contr�r,ownerlowner's rep) . Contact Name. ,c'� 1 � � � 1"� � Address: City State: Zip: Contact Name: (use additional sheet it necessary) �� y-�/����,. . . .._ _ _ , , __ _ . .. Contact Phone: Building Permits: Revised ADDITIONAL Valuations (Labor�Materials) Contact E-Mail: (DO NOT include original valuation) I hereby acknowledge that I have read this application,filled out : Building: $ in full the information required,completed an accurate plot plan, ' and state that all the information as required is correct. I agree to 'Plumbing: $ comply with the information and plot plan,to comply with all Town : ordinances and stat ws, and to build thi structure according :Electrical: $ to he- n's zoni an subd' ision cod s, esign review ap- oved, rnatio al ilding nd Resid nti I Codes and other Mechanical: $ o 'na s of e o appli the e o. X � Total: $ Own /O ner's Representa ive ignature (Required) Date Received: p � � � od � For Office Use Only: Fee Paid: ��� � 3 �0�� Received From: Cash Check# CC: Visa/MC Last 4 CC# exp.date: Authorization# TOWN (JF i/AIL . Il�:}��a.:i�l��l�ai.l��A. �'��������.lirrr���I, Sn��. �� `�i:'_'.?�;�,z{�;� ��t;,;.J (�-i t r1 ' �=E �, � ��, �r � ini��, �,i��;;. �' . 1�..�� ki '�,�., .� .l_ . �:,. i - f i �`fi�,r ;''TTP.F '"I,��kj',l! ��'���'`S, �_i"Et� F .,''.��.. . . . .�uty�2, �o�4 � C C� [� � M I� � Integrated Landscape Management JUL 2 3 2014 Attn: Shelly Mello P. O. Box 115 Avon, Colorado 81C2Q TOW� �� �/AI� �'��, '��— ��� I ��a�:i. „�.� Jab No. 114 083B Subject: Obseivation of Excavation, Propased Eastern Site Retaining Wall, Wells Residence, Lots 3 and 4, Block 5, Vail Village 7'�' Filing, 1067 and I 119 Ptat-�nigan, Vail, Calorado Dear Shelly: As requested, a representative of Hepworth-Pawlak Geotechnical observed the excavation at the subject site on July 15 and 18, 2014 to evaluate the sails exposed for foundation support. The findings of our observations and recommendations for the foundation design are presented in this report. The services were perfonned in accordance with our agreernent for professional engineerin�; services to Tntegrated Landscape management, dated July 14, 2014. We previously discussed the backfill conditions at the pool site for the proposed construction and submitted our findings in a letter datf;d April 28, 2014, Job No. I 14 083A. The proposed construction is similar to that di�cussed in our previoi�s letter. Tlie subject retaining wall will be located to the east of the swimming pool and south of the spa area. The wall will be block construction with rock facing and about 4 feet exposed height. The wall has been designed to be supported on a concrete spread footing foundation assuming an allowable soil �earing pressure of 2,000 ps£ The retaining wall will include a planter area. On July 15, we observed a backhoe pit (Pit 1) excavated in the area of the proposed retaining wall. The pit exposed about 5 feet of minus 3/ incli size screened rock underlain by relatively dense, clayey sandy gravel and cobbles that extended down to the pit deptll of 6 feet. The results of a gradation analysis performecl on a sample of the clayey sandy gravel with cobble soils (minus 5 inch fraction) obtained from the pit are presented on Figure 1. No free water was encountered in the pit and the soils were moist to very�noist. At t11e time ot our July 18 site visit, the foundation excavation for the wall was essentially complete and had been cut in one level about 6 feet below the acljacf;nt surface grade. The soils exposed in the bottom of tl�e excavation consisted of minus 3/ inch size screened rock. It appeared there was about 1 to 2 feet of the screened rock at footing •, , , ; . „ � , , �., _ � � � _ � r �. � � � E , �,: � !�.(?�3-°?jf)� p `� . ������te i�rl�-`�4���,}�},�;�) � � �� �� �� , ` Integrated Landscape Management July 22, 2Q14 Page 2 subgrade elevation overlying the natural coarse granular soils. No ti•ee water was encountered in the excavation and the soils were generally moist. Considering the conditions exposed in the excavation and the nature of the proposed construction, s�read footings placed on the limited depth of screened rock designed for an allowable soil bearing pressure of 2,000 psf can be used for support of the proposed retaining wa1L The footing shvuld be a minimum width of 24 inches. Prior to the footing construction, the subgrade should be compacted with a vibratory or plate compactor. The retaining��all should be designed to resist a lateral earth pressure based on an equivalent fluid unit weight of at least 45 pcf for screened rock backfill. We understand outlet for a drain behind the wall is not possible due the existing facilities in the area and that the existing screened rock in the area may have a drain outlet. The wall drain can be eliminated with some risk of hydro-static pressure build-up behind the wall. Filter fabric should be useci to separate the screened rock from soil backfill. Structurai fill placed within deck slab areas can consist of the on-site soils or screened rock eompacted to at least 95%� of standard Proctor density(SPD} at a moisture content near optimum. Backfill placed araund the structure should be compacted to at least 90% SPD and the surface graded ta prevent ponding near the structures. The recommendations submitted in this letter are based o�� our observation of the soils exposed within the foundation excavation and do not include subsurface exploration to evaluate the subsurface conditions within the loaded depth of foundation influence. This study is based on the assumption that soils beneath the footings have equal or better support than those exposed. The risk of foundation movement may be greater than indicated in this report because of possible variations in the subsurface conditions. In order to reveal the nature and extent of variations in the subsurface conciitions below the excavation, drilling would be required. It is possible the data obtained by additional subsurface exploration could change the recommendations contained in this letter. If you have any questions or need fiarther assistance, please call our office. Sincerely, HEPWORTH —PA WJ,�Q`,K1, `a��o�Gj��ICAL, INC. y�y\. M��V O�'I� L�� � ,�r ��� " � ° ����'� i ° . � r�" Q�_ .� Davici A. Young, P.E.� � �� � � ?z�'''� ,�,�,�� DAY/ksw �s�,, ���►`ea �,��lill��10���i attachment Figure 1, Gradation Test Results Job No. 114 033B Ge�tech ,-..�..,.�-- ��.._. . r . . _ ,•. 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Invoice Number: 0115313 5020 County Roac� 154 __,___ Invoice Date: 7/22/2014 Glenwood Sprin�s, co s t�o t invo�ce for Professional Services � Phone: 970-94j-7y88 ����-,�����.���,�����,,�...,.F�.,..��� ..��,��.��W��� .s.����� ,lob Number: 114083B ',`�t` �»�} ���� ��5� ProjectManager: DAY Integrated Landscape Mgmt. aroject: New Pool Area Attn: Sheily Mello Weils Residence P.O. Box 115 1067 and 1119 Ptarmigan Avon, C� 81620 Vail CO PAYMENT TERMS - DUE UPON RECEIPT WE NOW ACCEPT VIBA& MASTERGARD�! Professional Services: PLEASE INCLUDE INVOICE NUMBER ON CHECK DATE TASK DESCRIPTtON UNITS RATE AMOUNT 7/22/2014 1.00 S 800.00 $ 800.00 /LS Lump Sum Observation of Excavation, East Site Retaining Wail WE APPRECIATE YOUR BUSINESS.THANK YOU. Invoice Total: $ 800.00 '�l�L� PLEASE PAY FROM THIS INVOICE. Fed T8X ID: 84-1228299 � Late fee of$30.00 or 1.5%per month(whichever is greater)will be charged 30 days from the invoice date.