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m ENG�INEERING <br />I80 Niclersnn SI. <br />Suite 302 <br />Sca�llq WA <br />98I09 <br />(20G) 285-05121V) <br />(20E) 285A61 S(F) <br />tlhampson���enginaring. com <br />BULLETIN (� �,-� i � _c33 <br />Date May 6°008 Number CT-01 Project #: 03096S <br />Project Nnme: I3ig Foot,lxva (Supersiud) �Everett (South Poml Mall)j Attached . 1 <br />Subjeck Foundation Condition <br />llrswings Affccted : S2.0 <br />Description/Action: <br />1) Foundation Conditions over Detention Vault: <br />a) It has come to our attention that a detention vauit exists below the proposed location <br />for the Big Foot Java facility. <br />b) We believe that the vault (which has been in service since 1985) has performed <br />adequately under current loading conditions — which include dead loads due to grade <br />of 2' to 2'-6" over the vault lid at the parking lot. <br />c) In order to construct the building over the vault lid, it is necessary to remove the dirt <br />over the full footprint of the building down to the hollow-core lid below. <br />d) The footings may be founded directly on the lid wi;h dimensions and thicknesses per <br />the approved plans. The stem walls may be lengthened to account for a slightly tailer <br />wall — provide additional horizontal rebar in the wall, and adjust vertical upstand bars <br />as appropriate — see attached sketch. <br />e) Inside the building footprint, the "grade" will be raised by infilling the space from the <br />top of concrete plank to the bottom of slab-on-grade with structural light-weight foam. <br />fl This will have the effect of reducing the overall loading on the vault at this location. <br />--- — -- <br />- — — -- -- <br />� CN L \VCI'H QUGS'170NS . -. <br />Issued by: Robcrt Thomoson Date: Mav fi, 200R <br />O�mer Approval By:_ <br />Distrib W ion <br />LDG Architects <br />Att : Mike Bailey <br />Fax : 206283.129? <br />nk rmr�.::.n.;,r-re�:rai.r,a��s.ma�: <br />