Laserfiche WebLink
� <br /> `�' SITE STRUCTURES � O �G(o -GNS <br /> :. Di�nsion ol �c�ni'�. En�7ineei�nri, FC <br /> MEMORANDUM <br /> nT7N: Ryan Gllinghaus DATE: p']_p]_�) <br /> COMPANY: Zg]2 Architecture, PROJECT: Goldfinch Commercial <br /> 2312 Colby Avenue Slorm ���ater Detentiun <br /> I;verett, WA 98201 Vauit <br /> FAX: Pf:OJECT NO. 5-08-059 <br /> CC: PAGES: 1 of l <br /> Re: Hollow Core Plank Lid Design Loads <br /> We have revised the lid loading criteria on sheet S1 to re(lect thc City of Gverett's Vactor <br /> Truck bVheel loading criteria. I have reviewed the lid capacity with Cameron West of <br /> Concrete Technology Corporation, who concluded that the lid as originally shown <br /> without knee-walls at the manhole openings is acceptable, provided the concrete fill <br /> witliin these zones is increased to 4000psi. 1 have also reviewed the origina] design <br /> calculations, which utilized a HS-25 truck loading pattern ( not the 1IS-20 loading as <br /> listed in the construction documents ), and have concluded that thc original vault <br /> structural design is still applicable without revision ( plcasc note that the HS-25 truck <br /> axle loads are greater then the Vactor 1'ruck axle loads ). <br /> aQt <br /> �i�����J �cr�S,tt <br /> ,r j1 ;,',' //, �'i <br /> .� j. <br /> l�� +. <br /> u �� � <br /> W(�.. � <br /> ':� ' .i'yF��', <br /> - ..��� . �. . . � <br /> Daniel Kosnik, PE <br /> President <br /> 10511 191° AVE SE, Suite C, Evcrelt, WA 98208 � (425) 357-9600 (phonc) � (425) 357-9622 (tax) <br />