The URL can be used to link to this page

Home My WebLink AboutEngineer's Design for Foundation RepairGarfield County Building Department 108 8th Street, #401 Glenwood Springs, CO 81601 REFERENCE CODE: Vargas Residence 16474 Colorado 82 Carbondale CO 81623 352281 INSPECTOR: INSPECTION DATE: 7 8.0 8 [SEE LOCATION PLAN] 8.0 1935 2 40 psf [Based on Typical IRC Load Tables] 12 psf 2,500 plf [Based on Typical IRC Load Tables] SOIL CONDITIONS: • Minimum Frost Depth:36 in. • Assumed Allowable Bearing Capacity:1,500 psf ft. ft. • Floor Design Loads: • Foundation Wall Height:5 • Foundation Backfill Height:4 • Construction Type:Wood Frame • Exterior:Wood Siding • Foundation Type:Crawl Space (Masonry Walls and Piers on Spread Type Footings) ADDRESS: SPACING (Typ.): EXISTING FOUNDATION CHARACTERISTICS: [MAXIMUM] • Wall Design Loads: Live+Dead Load: ENGINEERING REPORT FOR FLOOR & FOUNDATION STABILIZATION OVERVIEW: BUILDING DEPT.: PROJECT: February 25, 2026DATE: Christopher Boyd 1/30/2026 CUSTOMER #: Dead Load: 2015 IBC & IRC with Garfield County Amendments [SEE PRODUCT DETAILS - ATTACHED] The foundation is showing signs of settlement and needs to be stabilizied; Excessive deflection and sagging of floor joists in crawl space.GENERAL ISSUE: QUANTITY: SCOPE-OF-WORK:IMG IntelliJack with FootingPad® [SEE LOCATION PLAN FOR SPACING] SCOPE-OF-WORK:IMG Push Pier [SEE PRODUCT DETAILS - ATTACHED] • Year Built: As requested by the owner/representative of the above referenced project (client), the field 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 field inspector and the client agreed to the following "Scope-Of-Work". Live Load: • Classification: Install 8 push piers, as shown on the attached sketch, to stabilize the structure and help mitigate further vertical movement. Install 7 IntelliJack Floor Supports along with a S4x7 supplemental beam to support flooring, as shown on the attached sketch.PROP. SOLUTION: Seal/Signature/Date QUANTITY: NOTE: For exterior footings ONLY. Per Referenced Code Above SPACING (Typ.):[MAXIMUM] • Stories: EXISTING STRUCTURE DETAILS: Single Family Residence Page 1 of 7 STEP 1 - • Load = [4 +4 ] x 104 / 2 =416 plf [Girder/Beam Load] STEP 2 - • Girder/Beam Load (plf) x Maximum Average IntelliJack Spacing (ft) = IntelliJack Load (lbs) • Load = 416 x 8 = [±12in OK] TASK C: Given:1,500 psf 4,000 psf 3,328 lbs 18 in Determine pressure on aggregate and soil layers based on anticpated loading: 3,328 lbs /1.07 SF = psf < 4,000 psf - OK 3,328 lbs /4.00 SF = psf < 1,500 psf - OK NOTES: Min. Footing Embed. Depth = IntelliJack with Pre-Cast EnduroCrete Footing Detail: Seal/Signature/Date DATE: 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 Garfield County Building Department Vargas Residence 16474 Colorado 82 Carbondale CO 81623ADDRESS: BUILDING DEPT: PROJECT: DESIGN CALCULATIONS AND SUMMARY February 25, 2026 the spacing of the IntelliJacks: 832 IntelliJack Load = EnduroCrete / Agg. Aggregate / Soil 3110 1) Minimum excavation dimensions shall be 24"L x 24"W x 18"D 2) 6" x 14" diam. pre-cast EnduroCrete footing underlain by 12" compacted aggregate base is acceptable 3,328 lbs [IntelliJack Load] TASK B: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 IntelliJack EnduroCrete Footing: Soil Bearing Capacity = Aggregate Base = Page 2 of 7 STEP 1 - • Load = [4 +4 ] x 104 / 2 =416 plf [Girder/Beam Load] STEP 2 - • Girder/Beam Load (plf) x Maximum Average IntelliJack Spacing (ft) = IntelliJack Load (lbs) • Load = 416 x 8 = [±12in OK] TASK C: 1,500 psf 4,013 lbs [per FootingPad® ICC ESR-2147 Table 1] 3,328 lbs NOTES: 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 DESIGN CALCULATIONS AND SUMMARY BUILDING DEPT:Garfield County Building Department PROJECT:Vargas Residence ADDRESS:16474 Colorado 82 Carbondale CO 81623 DATE:February 25, 2026 Intellijack Floor Support Max. Allowable Load = < 4,013 lbs - OK 1) Excavation to extend min. 6" below existing grade or to undisturbed soil, whichever is greater. 3,328 lbs [IntelliJack Load] the spacing of the IntelliJacks: TASK B: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 FootingPad® Poly Base Capacity: Soil Bearing Capacity (Allow.) = Intellijack Floor Support Load = IntelliJack with with FootingPad® Detail (On Soil): Seal/Signature/Date 2) 2.5" thick X 24" diam. FootingPad® FP-24 footing placed directly on undisturbed soil. 3) Stone may be used to level bearing surface. Page 3 of 7 STEP 1 - • Load = [4 +4 ] x 104 / 2 =416 plf [Girder/Beam Load] STEP 2 - • Girder/Beam Load (plf) x Maximum Average IntelliJack Spacing (ft) = IntelliJack Load (lbs) • Load = 416 x 8 = [±12in OK] TASK C: Given:1,500 psf 3,328 lbs 24 in Determine minimum footing base for square type footing (isolated) • Footing Width (B, inches) = Square Root of IntelliJack Load / Soil Bearing Capacity • B = √3,328 /1,500 = feet • Minimum Footing Dimensions (in. x in.):24 X 24 inches NOTES:1) Minimum footing thickness shall be 12 inches or 1/2 the minimum footing width, whichever is greater. IntelliJack with Cast-In-Place Footing Detail: TASK B: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 IntelliJack Cast-In-Place Footing Size: Seal/Signature/Date 1.49 February 25, 2026 the spacing of the IntelliJacks: 3,328 lbs [IntelliJack Load] 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 < 2 FEET - OK DESIGN CALCULATIONS AND SUMMARY Garfield County Building Department Vargas Residence Determine the load on the IntelliJacks by multiplying the calculated girder/beam load by DATE: BUILDING DEPT: PROJECT: ADDRESS: 2) Cast-in-place concrete underlain by 12" compacted aggregate base is acceptable 16474 Colorado 82 Carbondale CO 81623 Soil Bearing Capacity = IntelliJack Load = Min. Footing Embed. Depth = Page 4 of 7 DESIGN CALCULATIONS: 2,500 plf 8 feet • Using the support load and design pier spacing indicated above, the load on each pier will be: 20,000 lbs [SEE NOTE 1 BELOW] 40,000 lbs DESIGN COMMENTS: PIER LOAD LESS THAN ALLOWABLE LOAD OF 28,147 LBS MINIMUM DRIVING FORCE = Seal/Signature/Date Or when lift is achieved, whichever is first. • Based on load criteria and building characteristics outlined in the front page of this report, assume a support load of: • Push Piers Design Spacing:Maximum allowable spacing. See plan for proposed pier spacing. PIER LOAD = Support Load x Spacing = DESIGN ACCEPTABLE DESIGN CALCULATIONS AND SUMMARY BUILDING DEPT:Garfield County Building Department PROJECT:Vargas Residence ADDRESS:16474 Colorado 82 Carbondale CO 81623 DATE:February 25, 2026 NOTE 1: The pier load is less than the “Average” allowable load per pier; Factor of Safety (FS) exceeds 2. Refer to the Product Evaluation Report for additional information on the allowable system capacity ratings. Page 5 of 7 FLOOR SUPPORT PRODUCT REFERENCES: • ICC-ES Evaluation Report ESR-2147 (FootingPad®) FOUNDATION PIER PRODUCT REFERENCES: • ICC-ES Evaluation Report ESR-5005 (IMG Push Piers) Additional Documents: DATE: Seal/Signature/Date BUILDING DEPT: PROJECT: ADDRESS: COMMENTARY & LIMITATIONS Garfield County Building Department Vargas Residence 16474 Colorado 82 Carbondale CO 81623 February 25, 2026 • IMG IntelliJack Technical Data Sheet and Product Specifications GENERAL COMMENTARY The recommendations provided herein are based on our understanding of the project and subsurface characteristics at the time of this report. If differing project conditions are encountered, field personnel shall notify Engineering Department immediately for resolution. Unless determined by a site-specific soil boring and laboratory soils analysis, 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 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 previous construction, clearing, or cut/fill grading operations. LIMITATIONS The intent of the proposed floor support products 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 floor support products is the adjustable bolts, which allows for minor and/or incremental adjustments over a period of time, which minimizes stress to the structure. The information presented in this submittal is provided as support to the proposed scope of work outlined in the preceding pages. This report does not represent commentary on causation of foundation or structural damage (flood, wind, ground subsidence, etc.). Any additional work shall be considered beyond the scope of these analyses. Page 6 of 7 ITEM 1 - ITEM 2 - ITEM 3 - ITEM 4 - ITEM 5 - Seal/Signature/Date ADDITIONAL WORK DESCRIPTION or GENERAL NOTES: Push Pier calculations are based on a MAXIMUM spacing of 8 feet on center and 3 feet from corners. Intellijack calculations based on a MAXIMUM spacing of 8 feet center on center. Assumed two-story floor loading for mid-span support beams Supplement beam of S4x7 is to be installed with less than 1'6" of cantilever on ends. LOCATION / LAYOUT PLAN / NOTES BUILDING DEPT.:Garfield County Building Department PROJECT:Vargas Residence ADDRESS:16474 Colorado 82 Carbondale CO 81623 DATE:February 25, 2026 - PUSH PIER -INTELLIJACK Page 7 of 7