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fi <br /> civil"&structural <br /> ENGINEERING engineering&planning <br /> STRUCTURAL OBSERVATION REPORT <br /> Project: Park 120 Apartments Purpose: Structural Evaluation <br /> Location: 120 W Casino Rd, Unit 31B Date: March 14th, 2019 <br /> CG Project: 19057.10 Report: 1 <br /> Client:Servpro General Contractor:Jeff Sorenson, Servpro <br /> Field Rep: Cameron Partlow, EIT, Nathan Elliot, EIT <br /> PURPOSE AND SCOPE <br /> Field representatives of CG Engineering were on site on February 25th, 2014 to observe and evaluate <br /> (3) existing roof trusses hat had been damaged in a recent fire to apartment 31B in the Park 120 <br /> Apartments complex.The fire started in the kitchen and spread to the attic.At the time of the site <br /> visit,the contractor had removed the interior ceiling drywall so the roof trusses were observable. <br /> Structural repair drawings are included at the end of this report. <br /> EXISTING BUILDING <br /> The existing building is a two-story,wood framed, multi-family building built in 1969. The roof is <br /> framed with wood trusses, and the floor is framed with wood joists, beams, and columns.The walls are <br /> framed with wood studs and sheathed with plywood siding.The foundation system was not observed <br /> but is likely composed of concrete stem walls and interior pad footings. <br /> OBSERVATIONS <br /> 1. Truss 1—The first truss was observed to have no visible fire damage, however the truss did <br /> have (2) significant saw cuts in the top chord that occurred when trying to remove the roof <br /> sheathing to expose the affected roof members at the location of the fire. <br /> 2. Truss 2—The second truss to be observed had significant charring in the top chord and bottom <br /> chord of the truss near the exterior wall where the fire occurred, and a portion of the top chord <br /> was completely removed. <br /> 3. Truss 3—The third truss appeared to have light charring along the top chord near the exterior <br /> wall where the fire occurred, but did not appear to have any visible damage on any other <br /> member. <br /> RECOMMENDATIONS <br /> Due to the significant damage done to both the top compression chord and bottom tension chord of <br /> Truss 2 we recommend ignoring any structural capacity of this truss, and to instead repair/upgrade <br /> Trusses 1 and 3 for the proposed increase in tributary loading.The upgrade will involve repairing and <br /> strengthening the top chord of the trusses and adding new plywood gussets with increased nailing at <br /> the joints to resolve the increased axial loads from the members.The trusses to be repaired are marked <br /> on the attached framing sketch SK-1 and the repair details are shown on the attached S1 � n <br /> {E <br /> CITY OF EVERETT MAR 2 1 2019 1.3 <br /> THESE DOCUMENTS HAVE NOT BEEN REVIEWED FOR PERMIT w <br /> APPROVED FOR THE ISSUANCE OF t <br /> PUBLIC WORK, MECHANICAL, FIRE 2c� ? 250411 ��y� c tti1,V ���' <br /> SUPPRESSION, ELECTRICAL OR ��.` Edmonds,8:85WA d�b� <br /> PLUMBING PERMITS ' �� ph.425.778.8500 I f.425.778.5536 <br /> www.cgengineering.com <br />