HomeMy WebLinkAboutEngineer's Foundation Repair DesignGarfield County Building Department
SCOPE-OF-WORK:11 Each
[SEE PRODUCT DETAILS - ATTACHED]6.0 Feet
GENERAL ISSUE:
PROP. SOLUTION:Install eleven (11) foundation push piers to stabilize structure at the locations specified
1998
- inches
- feet
- feet
plf
2,000 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]
[Add upper wall and point loads]
• Footing Embedment Depth (Typ.):
• Surcharge Load (On Walls):N/A
• Wall Bracing: [Assume Typ.]Braced at top by wood-framed floor system and braced at bottom by concrete slab. Where
present, the concrete slab is assumed to be 4" thick and resting on the footing.
• Loads: [@ Footing Level]Walls: [LL + DL]
• 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 might vary due to site grading and footing steps..
• Foundation:Basement (Cast-In-Place Walls on Spread Footings)
STRUCTURAL DETAILS (EXISTING):
• Foundation Wall Type:Concrete
• Construction:Wood Frame
• Exterior:Vinyl
• Style:Ranch
• Stories:1
A portion of the structure is settling and needs to be stabilized.
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 Pier Mod PP21617-34 QUANTITY:[SEE PLAN - PAGE 2]
SPACING (Typ):[+/- 6" allowable]
CONTACT INFO:(970)-623-6304
INSP.:J. Armendariz INSP. DATE:9/21/2023
PROJECT:Rick Sheets
ADDRESS:59 County Road 317, Rifle, CO 81650
108 8th Street, #401
Glenwood Springs, CO 81601
DATE:September 29, 2023
ENGINEERING FOR FOUNDATION STABILIZATION
CODE:2015 IRC with Garfield County Amendments
BLDG DEPT.:
Christopher
Fitzsimmons
Digitally signed by
Christopher Fitzsimmons
Date: 2023.09.29 09:08:47
-06'00'
Rick Sheets
1 -
REPORT PAGE 2
GENERAL COMMENTS:
Push Pier locations shown in drawing below.
SITE and LAYOUT PLAN / NOTES
PROJECT:
ADDRESS:
DATE:September 29, 2023
59 County Road 317, Rifle, CO 81650
Push Pier Locations are
approximate
Maximum Spacing is to be
6-feet on-center
(+/- 6" allowable) and
3 feet from foundation corners.
3'
3'
6'
6'
6'
6'
6'
6'6'6'6'
PP1
PP2
PP3
PP4
PP5
PP6PP7PP8PP9PP10PP11
Basement
NORTH
Christopher
Fitzsimmons
Digitally signed by
Christopher Fitzsimmons
Date: 2023.09.29 09:09:05
-06'00'
Rick Sheets
DESIGN CALCULATIONS:
2,000 plf
6.5 feet
• Using the wall load and pier spacing indicated above, the load on each pier will be:
13,000 lbs [SEE NOTE 1 BELOW]
• Using a Factor of Saftey of 2, the minimum driving force will be:
26,000 lbs
DESIGN COMMENTS:
REPORT PAGE 3
Calculation for additional 6", see plan for spac.
PIER LOAD = Wall Load x Spacing = ACCEPTABLE
MINIMUM DRIVING FORCE = Pier Load x 2 =
September 29, 2023
• 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:
DESIGN CALCULATIONS/PIER DETAIL
PROJECT:
ADDRESS:59 County Road 317, Rifle, CO 81650
DATE:
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: 2023.09.29 09:09:18
-06'00'
Rick Sheets
ATTACHMENTS:Yes
Yes
REPORT PAGE 4
• A. ICC Evaluation Report ESR-5005 IMG Push Pier Mod PP21617-34
• B. Ultimate Driving Force Correlation Document
GENERAL COMMENTARY, LIMITATIONS
and ATTACHMENTS
PROJECT:
ADDRESS:59 County Road 317, Rifle, CO 81650
DATE:September 29, 2023
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 piles 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
Christopher
Fitzsimmons
Digitally signed by
Christopher Fitzsimmons
Date: 2023.09.29
09:09:33 -06'00'