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2012-0858 Olson SFR.pdf City of Edmonds PLAN REVIEW COMMENTS BUILDING DIVISION (425) 771-0220 DATE: November 14, 2012 TO: James Thomas jthomas@arch-design.net FROM: Chuck Miller, Plans Examiner RE: Plan Check: 2012-0858 Project: Olson SFR th Project Address: 15500 75 Place W During a review of the plans for the above noted project, it was found that the following information, clarifications or changes are needed. Please provide written responses as to where the changes can be found on the plans, cloud all changes on the revised plans, and submit the revised plans/documents to a Permit Coordinator. Thank you. General review notes: The geotechnical engineering evaluation report presented by Nelson Geotechnical Associates, Inc. references items that could not be found among, or were not represented in, the other construction documents. Please clarify the following statements: “Retaining walls up to nine feet in height are planned.” – pages 1 & 14 – No retaining · walls could be found on the site plan or architectural/structural plans, and no structural design for such a wall was submitted. “The lower floor slab will be designed as a structural slab and will be entirely supported · on auger cast piles.” – pages 1, 8, & 15 - No structural slab could be found on the architectural/structural plans and no structural design for such a slab was submitted. “A small soldier pile retaining wall is planned near the northeastern corner of the site to · replace a failed ecology block retaining wall.” – pages 1, 8, &16 - No soldier pile wall could be found on the site plan or architectural/structural plans, and no structural design for such a wall was submitted. The unique and specific nature of the work necessary to complete your project requires special inspection per IBC 1704 and the project structural engineer. A City of Edmonds ‘Special Inspection and Testing Agreement’ (see attached) for the following work will need to be completed and returned prior to permit issuance: Grading/Soils · Auger Cast Concrete Piles · On page T1.0: 1.Division 7 – Note #1 – Change the WSEC code year/table reference from ‘2006/Table 106C’ to ‘2009/Table 6-1’. 2.Division 8 – Note #4 – Remove the conditional language ‘with habitable spaces’. An operable emergency escape and rescue opening is required in all basements per R310.1. 3.Division 23 – Note #4 – Change the word ‘ceiling’ to ‘intake grille’ and the value ‘1.5’ to ‘1.0 or less at 0.1 inches water guage’ to meet the requirements of M1508.4.2. 4.Division 26 – Note #1 – Change the code year/reference from ‘2006 International Electrical Code’ to ‘2008 National Electrical Code’. 5.Governing Codes – Change the International Mechanical Code reference year from ‘2006’ to ‘2009’. On page A1.0: 6.Rear Elevation - Clarify the difference between the windows/door of the master bedroom shown and that represented on page A2.1 and the window schedule on page A5.0 – see also review note #16. 7.Rear Elevation – Clarify the difference between the deck off of the master bedroom shown and that represented on page A3.2 – see also review note #30. On page A2.0: 8.Provide the required smoke alarm per R314. 9.The 100 CFM whole house fan located in the laundry room meets the requirement (60 CFM) for continuous operation per Table M1508.2. Intermittent operation requires the fan to be sized according to the time of operation as a fraction of the day (i.e. a fan in operation 12 hours a day is required to be 120CFM, 8 hours would be 180CFM). 10.Provide the required crawl space access per R408.4. On pages A2.0 and A5.0: 11.Indicate the required safety glazing for the ‘6046 slider’ window (window #14) in the ‘Storage Room’ per R308.4.7. 12.Indicate the required safety glazing for the ‘4046 picture’ window (window #4) in the ‘Sewing Room’ per R308.4.2&7. On page A2.1: 13.Indicate the required access for the master bathroom tub pump (if jetted) and the tempering valve per UPC 414. The tempering valve can also be installed at the water heater. 14.Clarify the section callout ‘5/A5.0’ at the interior stairway. 15.Provide the required attic access per R807.1. 16.Clarify the difference between the windows/door of the master bedroom shown and that represented on page A1.0 – see also review note #6. On pages A2.1 and A5.0: 17.Indicate the required safety glazing for the ‘7046 picture’ window (window #23) in the master bedroom per R308.4.2. 18.Indicate the required safety glazing for the ‘2046 single-hung’ window (window #28) in the master bathroom per R308.4.5. Page 2 of 4 On page A3.0: 19.Clarify the detail callout ‘3/S1.0’ at gridline C.1 / 3.5. 20.Provide the detail callout at the edge of the driveway to guide proper construction and inspection. It appears to have been ‘cut off’ during the processing of the plans. 21.Provide beam calculations for the driveway deck framing members – ‘Beams E2’ – PT 5- 1/8x16-1/2 24F GLB - and the (2) #2 Hem-fir 12x12s – used to meet the loading requirements of Table R301.5a. Include the required species and layup design for the glulam. On page A3.1: 22.Clarify the detail callout ‘3/S1.0’ at gridline C.1 / 3.5. 23.Provide beam calculations for the following: a.‘Beam 21’ – 5-1/8x15 24F GLB b.‘Beam 22’ – 5-1/8x12 24F GLB Include the required species and layup design for each. On page A3.2: 24.Change the detail reference from ‘15/S1.1’ to ‘15/S1.0’. 25.Change the detail reference from ‘16/S1.1’ to ‘16/S1.0’. 26.Change the detail reference from ‘18/S1.0’ to ‘18/S1.1’. 27.Change the detail reference from ‘19/S1.0’ to ‘19/S1.1’. 28.Clarify the detail reference ‘20/S1.1’ along the front of the house. While present at each side of it, there does not appear to be a cantilever at that location. 29.Clarify the omission on the ‘P1-6’ shear wall along gridline ‘F’ represented on page ‘A3’ of the provided structural calculations. 30.Clarify the difference between the deck off of the master bedroom shown and that represented on page A1.0 – the structural calculations for ‘Beam 16’ - #2 Hem-fir 4x8 do not seem to support either - see also review note #7. 31.Provide beam calculations for the garage floor framing members – ‘Beams E1’ – 5-1/8x16- 1/2 24F GLB - and the 1-3/4x11-7/8 LVLs – used to meet the loading requirements of Table R301.5a. Include the required species and layup design for the glulam. On page A3.3: 32.Clarify the difference between the length and type of shear walls shown on gridline ‘C/F’ and that represented on page ‘A4’ of the provided structural calculations. 33.Clarify the omission on the ‘P1-4’ shear wall along gridline ‘2’ represented on page ‘A4’ of the provided structural calculations. 34.Indicate the required construction to complete the shear transfer from the roof diaphragm to the ‘P1-4’ shear wall along gridline ‘2’. 35.Clarify the callout for ‘Beam 4’ – #2 Hem-fir 6x8 – the point load from the girder truss does not appear to have been accounted for. 36.Clarify the callout for ‘Beam 8’ – #2 Hem-fir 4x4 – the point load from the 2x12 ridge beam does not appear to have been accounted for. Page 3 of 4 On page A5.0: 37.Typical Wall Section – Typical Floor - Clarify the difference between the floor sheathing thickness and attachment noted and that required in the ‘Structural Notes/Floor Sheathing’ notes on page ‘S1.0’ – see also review note #38. On page S1.0: 38.Structural Notes – Floor Sheathing - Clarify the difference between the floor sheathing thickness and attachment noted and that required in the ‘Structural Notes/Floor Sheathing’ notes on page 8 of the provided structural calculations. 39.Provide legible structural details to guide proper construction and inspection in the field. After being reduced and copied, the provided details are difficult to read in even a well-lit office environment. 40.Clarify detail #16 – it appears to be identical to detail #15 and different than that of the same number in the provided structural calculations. 41.Provide a complete shear wall schedule to guide proper construction and inspection. A portion of the provided shear wall schedule appears to be missing. These plan review comments summarize the Building Division concerns regarding the construction documents that have been submitted to date. Reviews by other divisions, such as Planning, Engineering, or Fire, may result in additional review comments. Also included (attached to the same email) is a technical memorandum, summarizing the geotechnical peer review required for development within the Earth Subsidence and Landslide Hazard Area (ESLHA) of North Edmonds per Edmonds Community Development Code (ECDC) Chapters 19.10 and 23.80. Please include the response(s) to the peer review with any other documents brought in to the Permit Center at the time of resubmittal. Page 4 of 4