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DEI <br /> DIBBLE ENGINEERS INC <br /> We have attached retrofit Detail SK-A to this memo, which contains retrofit options for 3 general cases: Case 1 -hole <br /> in the top 53/4"of the joist, Case 2—hole in the bottom 53/4"of the joist, and Case 3—hole in the middle 6 '/4'of the <br /> joists. There is a small amount of overlap between Case 1 /2 and Case 3, retrofit option to be selected by the <br /> contractor where overlap occurs. Supporting calculations have been attached for jurisdictional review, if required. <br /> Please feel free to contact us with any questions at 425-828-4200 ext. 239. <br /> Disclaimer <br /> Dibble Engineers review is based on information provided by the Architect. Dibble Engineers did not conduct a <br /> building analysis for either vertical or lateral loads other than as described above.Our review and discussion <br /> summary does not provide warranty either expressed or implied to the existing conditions or work completed <br /> subsequent our visit. <br /> t V A <br /> 'tib �v r: <br /> . }� <br /> 7Cfi9�+ � R <br /> I <br /> l� <br />