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Home My WebLink AboutEngineer's DesignGarfield County Building Department SCOPE-OF-WORK:Qty:5 SPACING (ft) Qty:2 SPACING (ft) GENERAL ISSUE: PROP. SOLUTION:Install five (5) push piers to stabilize the foundation. Install two (2) intellijack supports and 3 feet of supplemental beam in the crawlspace. 1935 - inches - feet - feet plf 2,250 plf 52 psf 36 - inches (Below Final Exterior Grade) 16 8 SOIL CONDITIONS:N/A Coh. (psf):N/A Phi (Ø):N/A ɣ (pcf):N/A 1,500 psf N/A N/A 36 SITE CONDITIONS: N REPORT PAGE 1 • GWT (ft):• Frost Depth (in): A. Footing Characteristics and Soil Conditions provided by: N/A B. Is Site Plan Available (Y/N)?: • Footing Reinforcement (Typ.):Not Available (Assume Code Minimum - As Applicable) • Soil Type (USCS): [At or Near Footing Depth]• Allow. Brg. Capacity:• Shrink-Swell Potential: • Footing Width (Typ.): [Cont. Wall + Isol. Pier] - in. (Cont.) - in. (Square) • Footing Thickness (Typ.): [Cont. Wall + Isol. Pier] - in. (Cont.) - in. (Square) [Based on Typical IRC Load Tables]Floor: [LL + DL]NOTE: [Add upper wall and point loads] • Footing Embedment Depth (Typ.): • Surcharge Load (On Walls):N/A • Wall Bracing: [Assume Typ.]Braced at top by existing wood-frame system and braced at bottom by soil. • Loads: [@ Footing Level]Walls: [LL + DL]NOTE: For one-story portion of residence • Wall Reinforcement:N/A • Unbalanced Fill: N/A NOTE: Fill depth for basement conditions may vary. • Wall Thickness:8" • Wall Height:N/A NOTE: Wall height varies due to site grading and footing steps. • Foundation:Crawl Space (CMU Walls on Spread Type Footings) STRUCTURAL DETAILS (EXISTING): • Foundation Wall Type:CMU • Construction:Wood Frame • Exterior:Vinyl • Style:Contemporary • Stories:2 NW portion of the residence has settled and needs to be stabilized. Sagging floor on main level. STRUCTURE DESCRIPTION: • Classification:Single Family Residence • Year Built: OVERVIEW: As requested by the owner/representative of the above referenced project (client), the Groundworks inspector visited the project and performed a visual inspection of readily accessible foundation areas (walls and piers) and associated structural framing elements. Unless noted below, destructive testing and evaluation was not performed. Based on this inspection, the Groundworks Inspector and the client agreed to the following "Scope-Of-Work". IMG Push Piers IMG IntelliJack w/ EnduroWheel Footing 6.5 3.0 CONTACT INFO:(970) 315-2412 INSP.:M. Zamora INSP. DATE:11/22/2023 PROJECT:Andrew Yager ADDRESS:40 Rainbow Court, Carbondale CO 81623 108 8th Street, #401 Glenwood Springs, CO 81601 DATE:February 5, 2024 ENGINEERING FOR FOUNDATION STABILIZATION CODE:2015 IRC with Garfield County Amendments BLDG DEPT.: Christopher Fitzsimmons Digitally signed by Christopher Fitzsimmons Date: 2024.02.05 13:25:06 -06'00' Andrew Yager 1 - IMG Intellijack on EnduroWheel Footing IMG Push Pier REPORT PAGE 2 GENERAL COMMENTS: Push Pier and Intellijack locations shown in drawing below. SITE and LAYOUT PLAN / NOTES PROJECT: ADDRESS:40 Rainbow Court, Carbondale CO 81623 DATE:February 5, 2024 Push Pier/Intellijack Locations are approximate Maximum Push Pier Spacing is to be 6.5-feet combined around the foundation corners. Maximum Intellijack Spacing is to be 3-feet (+/-12") on-center. S4x7.7 Supplemental Beam 6' Crawlspace 3' 2' 2' 4.5'4.5' 2' 2' 3' 14' 4'4' 9' 3' PP1 PP2 PP3 PP4 PP5 IJ1 IJ2 NORTH Christopher Fitzsimmons Digitally signed by Christopher Fitzsimmons Date: 2024.02.05 13:25:19 -06'00' Andrew Yager DESIGN CALCULATIONS: 2,250 plf 6.5 feet • Using the wall load and pier spacing indicated above, the load on each pier will be: 14,625 lbs [SEE NOTE 1 BELOW] • Using a Factor of Saftey of 2, the minimum driving force will be: 29,250 lbs DESIGN COMMENTS: DESIGN CALCULATIONS/PIER DETAIL PROJECT: ADDRESS:40 Rainbow Court, Carbondale CO 81623 DATE:February 5, 2024 • Based on wall loading and building characteristics outlined in the front page of this report. of this report, assume a wall load of: • Push Piers Design Spacing:Maximum PIER LOAD = Wall Load x Spacing = ACCEPTABLE REPORT PAGE 3 MINIMUM DRIVING FORCE = Pier Load x 2 = NOTE 1: This actual load is less than the “Average” Allowable Load per Pier of 29.3 kips; therefore OKAY). Factor of Safety (FS) exceeds 2. See allowable system capacity ratings in the ICC Evaluation Report ESR-5005 (attached). Push Pier/Bracket Detail (Typ.) Christopher Fitzsimmons Digitally signed by Christopher Fitzsimmons Date: 2024.02.05 13:25:31 -06'00' Andrew Yager STEP 1 - • Load = [3 3 ] x 104 / 2 =312 plf [Girder/Beam Load] STEP 2 - • IntelliJack Load (lbs) = Girder/Beam Load (plf) x IntelliJack Spacing (ft) • Load = 312 x 3 = [+/- 12" OK] TASK B: TASK C: Given:1,500 PSF Aggregate Base = 4,000 PSF 936 lbs 24 in Determine soil bearing pressures Concrete / Aggregate 936 lbs. /1.07 SF =PSF < 4,000 PSF - OK Aggregate / Soil 936 lbs. /4.00 SF =PSF < 1,500 PSF - OK footing over a minumum of 12" THK X 24" X 24" compacted aggregate base is acceptable. EnduroCrete Precast Footing Detail: REPORT PAGE 4 Existing or new beam supported by existing supports and supplemental IntelliJacks (as shown on plan) is acceptable as per IRC girder/beam tables. OK Evaluate IMG EnduroCrete Precast Footing: Soil Bearing Capacity = IntelliJack Load = Min. Footing Embed. Depth = 875 234 NOTE: IMG design of 6" THK X 14" DIA. EnduroCrete Precast Concrete 936 lbs [IntelliJack Load] DESIGN CALCULATIONS INTELLIJACKS PROJECT: ADDRESS:40 Rainbow Court, Carbondale CO 81623 DATE:February 5, 2024 TASK A: Evaluate Girder/Beam Loading and IntelliJack Loading: Determine the load which will be supported by the girder/beam in lbs per linear foot: • Girder/Beam Load (plf) = [Span 1 (ft) + Span 2 (ft)] x Floor Load (psf) / 2 Determine the load on the IntelliJacks by multiplying the calculated girder/beam load by the spacing of the IntelliJacks: Christopher Fitzsimmons Digitally signed by Christopher Fitzsimmons Date: 2024.02.05 13:25:45 -06'00' Andrew Yager ATTACHMENTS:Yes Yes Yes REPORT PAGE 5 • A. ICC-Evaluation Report ESR-5005 IMG Push Pier Mod PP21617-34 • B. IMG IntelliJack Technical Data Sheet • C. ICC-ES Evaluation Report ESR-5007 GENERAL COMMENTARY, LIMITATIONS and ATTACHMENTS PROJECT: ADDRESS:40 Rainbow Court, Carbondale CO 81623 DATE:February 5, 2024 GENERAL COMMENTARY The recommendations provided herein are based on our understanding of the project and subsurface characteristics at the time of this report. Based on actual field conditions, helical piers may be installed instead of push piers. If differing project conditions are encountered, Groundworks field personel shall notify Engineering Department immediately for resolution. Unless determined by a site specific soil boring and laboratory soils anlysis, the bearing capacity (net allowable soil pressure) referenced in the first page of this report is based on our experience with soils in the project area as well as the “Presumptive Load-Bearing Values” as outlined in the referenced version of the IRC. Any perimeter pier may be installed on the interior or the exterior of the structure at the discretion of the Contractor.It should be noted that subsurface conditions can vary across the site due to natural occurence or because of construction, clearing, filling, or cut and grading operations. LIMITATIONS The intent of the IntelliJacks is to provide support to existing beams/girders or to provide support to new beams serving in a supplemental support condition (as noted herein). It should be understood that one of the benefits of the IntelliJack is the adjustable screw, which allows for minor and/or incremental adjustments over a period of time, which minimizes stress to the structure. Christopher Fitzsimmons Digitally signed by Christopher Fitzsimmons Date: 2024.02.05 13:25:58 -06'00'