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HomeMy WebLinkAboutFoundation Observations 10.04.2023GRA02490-0001ND JUNCTION LINCOLN DeVORE, Inc. GEOTECHNICAL ENGINEERS - GEOLOGISTS 2191 Canyon Ct. W. Cell: (970) 260-3332 Grand Junction, CO 81507 E-Mail: gildemAearthlink.net October 4, 2023 Mr. Tyler DiDonato Shining Light Services P.O. Box 7591 Fruita, Colorado 81521 Re: Foundation Observations, Garfield County Building Permit # BLRE-03-23-8044, 224 Limberpine Circle, Battlement Mesa, Colorado Mr. DiDonato: At the request of Mr. DiDonato, the foundation concrete footing was checked for the maximum allowable bearing and the minimum allowable width. Assuming the Foundation Loads are to be computed as Dead Load + %2 Live Load, the maximum allowable bearing will be 1500 psf, by others, for the soils, the minimum footing width would be 12" wide, producing a footing bearing range of 862psf to 133 8 psf for the main load - bearing walls. The GJLD Foundation Design a minimum 14" wide footing as that dimension is typically required to set a wide variety of concrete forms for an 8" stemwall. If construction allows the 12" wide footing, than Edward M. Morris, P.E. of Grand Junction Lincoln DeVore, Inc. will allow it for this structure. Edward M. Morris, P.E. of Grand Junction Lincoln DeVore, examined the foundation footing forms at the above -referenced site on 6-21-2023. The final footings were formed as 12" to occasionally 14" wide & 12" thick, constructed using the FastFoot System. Our examination was based on foundation engineering drawings previously completed and by subsequent computations, summarized above, by Grand Junction Lincoln DeVore, Inc. for this site. All footings were substantially the correct width and depth as per our foundation design and subsequent computations. Edward M. Morris, P.E. of Grand Junction Lincoln DeVore, observed the foundation reinforcing steel at the above -referenced site on 6-21 & 7-5-2023. The stemwall was constructed 4 courses of CMU block, with the cavities filled with grout. Proper placement and quantity of steel reinforcing bars, vertical & horizontal, were found at the time of our observation. Therefore, it is our conclusion that the work done is in substantial conformance with our previous recommendations for this site. Edward M. Morris, P.E. of Grand Junction Lincoln DeVore, observed the UFER BAR (Concrete Encased Electrode [rebar ground]) at the above -referenced site on. The Ufer Bar was found to consist of a minimum 1/2"o rebar, 20' long or connecting to 20' minimum %"o rebar in the lower (lowest)_ portion of the foundation concrete in substantial accordance with Section 250.52 A3 of the 2017 NEC. Edward M. Morris, P.E., of Grand Junction Lincoln DeVore, observed the wood framing at the above - referenced site on 9-3 0-2023. The wood framing for this small, single story residential structure was designed using the IBC 2016, 2018 - Section 2308, CONVENTIONAL LIGHT -FRAME CONSTRUCTION. The single story, with bearing wall & braced wall height not exceeding 10 feet and design loads (Dead Loads of building materials, Live Loads not exceeding 40 psf, Ground Snow Loads not exceeding 50 psf , Wind Speeds not exceeding 130 mpf, Roof Truss span not exceeding 40 feet and the Seismic Rick Category Iess than IV_) Our observations and measurements indicated that the floor framing elements over the crawl space (floor joist ledger and beam system, and support posting to the foundation elements) were constructed in substantial conformance with the requirements of the foundation design. The wall -framing (utilizing 1-1 /2" staples), Mr. Tyler DiDonato, Shining Light Services Foundation Observations, Garfield County Building Permit # BLRE-03-23-8044, 224 Limberpine Circle, Battlement Mesa, Colorado October 4, 2023 Page 2 including the 8 Braced Walls (utilizing 6d 2"x 0.113" nailing or larger), with minor additional edge nailing, were constructed in substantial conformance with the requirements of the foundation design. The roof framing is a site constructed/cut roof system constructed in a manner similar to the original building plans provided to Grand Junction Lincoln DeVore. The roof framing is a pre-engineered manufactured truss system. The trusses were properly braced,as indicated on the individual truss plans. The trusses were connected at the bearing wllas with `Timber-Lok' screws or `Hurricane Ties' where screw access was obstructed. Our observations and measurements indicated that the framing elements (roof system, wall system, floor j oist and beam system, and support posting to the foundation elements) were constructed in substantial conformance with the requirements of the foundation design and are acceptable to the foundation design engineer. We hope this letter has provided you with the information required. If questions arise, or if further information is needed, please feel free to contact Grand Junction Lincoln DeVore at any time. Respectfully submitted. GRAND JUNCTION LINCOLN DeVORE, INC. by: Edward M. Morris, P.E. Principal Engineer GILD Job No. 95758-GJ