2939 COLBY AVE EVERETT MUSEUM 2023-09-26

• civil &structural ENGINEERING engineering&planning I STRUCTURAL ASSESSMENT REPORT Project: Everett Museum of History Purpose: Structural Evaluation of Building Location: 2939 Colby Avenue, Everett, WA Date: November 17, 2017 CG Project: 17390.10 Report: 1 Client: Capital Architects Group Prospective Owner: Everett Museum of History Field Rep: Carolyn Jewett, PE, SE PROJECT DESCRIPTION CG Engineering was retained to provide a structural evaluation of an existing 1-story wood framed building located in downtown Everett. The objective of this report is to summarize the findings of our structural evaluation. Our evaluation is based on observations made during our site visit on November 10, 2017, as well as our review of the existing drawings that were provided to us. Structural issues related to the existing building conditions are presented as well as recommendations. Finally,we have reviewed the proposed use of the building to determine if upgrades will be required to the gravity and lateral systems, using the 2015 International Existing Building Code(IEBC), and the 2015 International Building Code (IBC). AVAILABLE DRAWINGS The following is a list of the existing drawings that were available to us for review: , n 1973 & 1975 Everett Abstract and Title Architectural Drawings D ti 1988 Transamerica Title Architectural Drawings 1993 Transamerica Title Plumbing Drawings JUL 0 9 2018 2001 Advanced Telecom Group Canopy Drawings 2001 Advanced Telecom Group Architectural and Structural Drawings CITY OF EVERETT 2001 Advanced Telecom Group Plumbing Drawings Permit Services We were also provided with a set of plans from Capital Architects Group dated October 24, 2017 showing the existing and proposed floor plans. We have used this set of plans to determine the proposed use and occupancy classification per Chapter 3 of the IBC, as well as the required uniform and concentrated live loads per Table 1607.1 of the IBC. DESCRIPTION OF EXISTING BUILDING The original building was constructed in 1920 as an 8,000sf one story wood framed building with an 8,000sf basement. On the north side,the roof framing consists of 2x4 joists @ 20"oc that span to 2x4 cripple walls.The cripple walls sit atop 2x14 joists @ 16" oc. On the south side,the roof framing consists of 2x4 joists @ 20"oc that span to 2x4 cripple walls. The cripple walls sit atop 3x12 T&G decking that spans to 6x12 beams and wood posts.The floor framing consists of 4x14 joists @ 16"oc on the north side and 4x10 T&G decking that spans to 9x16% beams and wood posts on the south side. At the main level,the exterior walls consist of brick on the north, east and south sides. At the basement level,the perimeter walls consist of brick on the east, west and south sides, and are concrete on the north side. SUMMARY OF PAST TENANT IMPROVEMENT PROJECTS In 1975,the existing light well at the basement on the south side was filled in and a new concrete slab on grade sidewalk was constructed along Wall Street. In 1988, a new opening at the basement level was cut into the