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BRES2017-0192 - 1ST REVIEW STRUCTURAL CORRECTIONSEsGil Corporation In Partnership with Government for Buifding Safety DATE: 8/ 15/ 17 A-A'PPLICANT ❑ JURIS. JURISDICTION: La Quinta ❑ PLAN REVIEWER ❑ FILE PLAN CHECK NO.: BRES2017-0192 SET: I PROJECT ADDRESS: 80925 Via Pressaro PROJECT NAME: Structural Only Plan Check for Hicks Custom SFR ❑ The plans transmitted herewith have been corrected where necessary and substantially comply with the jurisdiction's codes. n The plans transmitted herewith will substantially comply with the jurisdiction's codes when minor deficiencies identified below are resolved and checked by building department staff. ® The plans transmitted herewith have significant deficiencies identified on the enclosed check list and should be corrected and resubmitted for a complete recheck. The check list transmitted herewith is for your information. The plans are being held at EsGil Corporation until corrected plans are submitted for recheck. ❑ The applicant's copy of the check list is enclosed for the jurisdiction to forward to the applicant contact person. ❑ The applicant's copy of the check list has been sent to: ® EsGil Corporation staff did not advise the applicant that the plan check has been completed. ❑ EsGil Corporation staff did advise the applicant that the plan check has been completed. Person contacted: Date contacted: (by: I``�-- ) Mail Telephone Fax In Person 1-1 REMARKS: By: Tamara Fischer EsGil Corporation ❑GA ❑EJ ❑MB ❑PC Telephone #: Email: 8/4/17 Enclosures: 9320 Chesapeake Drive, Suite 208 ♦ San Diego, California 92123 ♦ (858) 560-1468 ♦ Fax (858) 560-1576 La Quinta BRES2017-0192 8/15/17 PLAN REVIEW CORRECTION LIST SINGLE FAMILY DWELLINGS AND DUPLEXES PLAN CHECK NO.: BRES2017-0192 JURISDICTION: La Quinta PROJECT ADDRESS: 80925 Via Pressaro STRUCTURAL ONLY FLOOR AREA: 7262 sq ft SFD 1315 sq ft Gar, 183 sq ft Mech, 1285 sq ft Cov Patio HEIGHT: 20' approx REMARKS: DATE PLANS RECEIVED BY DATE PLANS RECEIVED BY JURISDICTION: ESGIL CORPORATION: 8/4/17 DATE INITIAL PLAN REVIEW PLAN REVIEWER: Tamara Fischer COMPLETED: 8/ 15/ 17 FOREWORD (PLEASE READ): This plan review is limited to the technical requirements contained in the California version of the International Residential Code, International Building Code, Uniform Plumbing Code, Uniform Mechanical Code, National Electrical Code and state laws regulating energy conservation, noise attenuation and access for the disabled. This plan review is based on regulations enforced by the Building Department. You may have other corrections based on laws and ordinance by the Planning Department, Engineering Department, Fire Department or other departments. Clearance from those departments may be required prior to the issuance of a building permit. Present California law mandates that construction comply with the 2016 edition of the California Code of Regulations (Title 24), which adopts the following model codes: 2015 IRC, 2015 IBC, 2015 UPC, 2015 UMC and 2014 NEC. The above regulations apply, regardless of the code editions adopted by ordinance. The following items listed need clarification, modification or change. All items must be satisfied before the plans will be in conformance with the cited codes and regulations. Per Sec. 105.4 of the 2015 International Building Code, the approval of the plans does not permit the violation of any state, county or city law. To speed up the recheck process, please note on this list or a co where each correction item has been addressed i.e. Ian sheet number, specification section etc. Be sure to enclose the marked up list when you submit the revised plans, La Quinta BRES2017-0192 8/15/17 THIS IS A STRUCTURAL -ONLY PLAN CHECK Please make all corrections and submit two new complete sets of prints, to: The jurisdiction's building department. 2. Plans deviating from conventional wood frame construction shall have the structural portions signed and sealed by the California state licensed engineer or architect responsible for their preparation, along with structural calculations. (California Business and Professions Code). 3. Provide a copy of the project soil report. The report shall include foundation design recommendations based on the engineer's findings and shall comply with Section R401.4. The report must be evaluated based on the enclosed City Memo. Please ensure that all specific recommendations from the soil report for footing sizes, depths, reinforcing, slab thickness, reinforcing, underlayment, etc. are specified on the plans. 4. Provide a letter from the soils engineer confirming that the foundation plan, grading plan and specifications have been reviewed and that it has been determined that the recommendations in the soils report are properly incorporated into the construction documents (if required by the soil report). 5. Provide detailing on the plans to show veneer attachment to the stud walls, in accordance with the provisions of Section R703.7. 6. Note on plans that surface water will drain away from building and show drainage pattern. The grade shall fall a minimum of 6" within the first 10 feet. Sec. R401.3. 7. Where detail 25/SD1 is referenced, please specify "A" or "B".condition. 8. Please specify typical stud size and spacing. 9. Provide truss details and truss calculations for this project. Specify truss identification numbers on the plans. The City of La Quinta does not allow deferred submittals. 10. Truss hangers should be called out in truss packet. 11. Please provide evidence that the engineer -of -record (or architect) has reviewed the truss calculation package prepared by others (i.e., a "review" stamp on the truss calculations or a letter). CBC Section 107.3.4.1. 12. Please provide a connection detail for beams 36 and 46 to the HSS column. 13. Is a drag strap needed at B65? 14. Keynote 1 which is referenced where B9 supports GTB53 does not seem to fit. La Quinta BRES2017-0192 8/15/17 • MISCELLANEOUS 15. To speed up the review process, note on this list (or a copy) where each correction item has been addressed, i.e., plan sheet, note or detail number, calculation page, etc. 16. Please indicate here if any changes have been made to the plans that are not a result of corrections from this list. If there are other changes, please briefly describe them and where they are located in the plans. • Have changes been made to the plans not resulting from this correction list? Please indicate: Yes ❑ No ❑ 17. The jurisdiction has contracted with Esgil Corporation located at 9320 Chesapeake Drive, Suite 208, San Diego, California 92123; telephone number of 858/560-1468, to perform the plan review for your project. If you have any questions regarding these plan review items, please contact Tamara Fischer at EsGil Corporation. Thank you. La Quinta BRES2017-0192 8/15/17 M E M 0 R A N D U M TO: All Structural Plan Reviewers, Other Inter #ed Parties FROM: Greg Butler, Building & Safety Manager DATE: ,tune 16, 2008 RE; Clarification of CBC Requirements for Solis Reports As you know and have been enforcing, most construction projects require foundation and soils investigations in accordance with CBC Section 1802. Recently, some exceptionally poor soil conditions have been Identified In several areas of La Quinta. Our Public Works Department has expressed concerns related to test borings where blow counts In adjacent strata change suddenly from low to mid-30s to single digit counts at 10- to 30 foot depths. The condition is exacerbated by dry conditions (single digit moisture percentages), which Increase the potential for collapse. This raises questions about the potential for longterm and differential settlement of a structure. While we do not intend to prescribe a particular methodology, Public Works has advised me that when expected settlements, as determined by the Schmertmann Layer Analysis or other common method, exceed 0.75" to 1.00" In a 60-year lifespan, there is cause for concern that should be addressed by the geotechnical engineer. When these conditions are found, modifications to overexcavation depth(s) and/or footing designs may be applicable. These questions can be addressed better if very early in the review process we Identify deficiencles in the geotechnical report required by Section 1802.6. At a minimum, the Code requires that the report include, but need not be limited to, the following Information: 1. A plot showing the location of test borings and/or excavations. 2. 'A complete record of the soil samples. 3. A record of the soil profile. 4. Elevation of the water table, If encountered, 6. Recommendations for foundation type and design criteria, including, but not limited to: a. Bearing capacity of natural or compacted soil, b. Provisions to mitigate the effects of expansive soils. c. Mitigation of the effects of liquefaction., d. Mitigation of the effects of differential settlement. e. Mitigation of the effects of varying soil strength. f. The effects of adjacent loads. 6. Expected total and differential settlement. [emphasis mine] 7. Pile and pier foundation information in accordance with Section 1808.2.2. 8. Special design and construction provisions for footings and foundations founded on expansive soils, as necessary. 9. Compacted fill material properties and testing In accordance with Section 1803.5. Page 1 of 2 La Quinta BRES2017-0192 8/15/17 Please verify that soils reports contain all of the above information. In addition, to assure continuity between the investigation/reporting stage and the execution stage, please use the following checklist to verify that the conclusions and recommendations in the report cover all the required elements. Only then can we be assured that the construction documents address all of the site soil conditions. La Quinta Geotechnical Report Checklist Does the "Conclusions and Recommendations" section of the report address each of the following criteria? "Address" means: (a) the criterion is considered significant and mitigation measure(s) noted, or; (b) the criterion Is considered insigniflcant and explicitly so staffed. Yes No Criterion ❑ ❑ Foundation criteria based upon bearing capacity of natural or compacted soil. ❑ ❑ Foundation criteria to mitigate the effects of expansive soils. ❑ ❑ Foundation criteria based upon bearing capacity. of natural or compacted soil. ❑ ❑ Foundation criteria to mitigate the effects of liquefaction. ❑ ❑ Foundation criteria to mitigate the effects of seismically induced differential settlement. Cl ❑ Foundation criteria to mitigate the effects of long-term differential settlement. ❑ ❑ Foundation criteria to mitigate the effects of varying soil strength. ❑ ❑ Foundation criteria to mitigate expected total and differential settlement. Any "No" answers to the above checklist should be noted as specific required corrections.