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HomeMy WebLinkAboutObservation of Excavation 05.23.24 PO BOX 1293 CRAIG, CO 81626 PHONE (970) 620-4030 CIVIL ENGINEERING WATER RESOURCE ENGINEERING ENVIRONMENTAL CONSULTING May 23, 2024 Reuben & Lisa Jensen PO Box 445 Carlsbad, TX 76934 RE: 6800 CR 252 Rifle, CO Parcel 192120300033 – Foundation Soil Investigation Dear Mr. Jensen: This letter summarizes our observations of the soil adjacent to and immediately beneath the planned foundation and provides confirmation that the soil bearing capacity used for the foundation design is appropriate. The soils investigation consisted of two field visits, including one where the foundation was mostly completed on July 18, 2023, and one yesterday, May 22, 2024, when the excavation was completed and footing forms were nearly completed. The soil in the vicinity of the foundation excavation is predominantly silty sand with interbedded angular rocks based on a field classification. Some of the soil has trace amounts of clay, but overall, there is little to no plasticity, thereby reducing the potential for soil expansion. The angular rock gravel provides additional stability and strength. The soil below the footings feels and appears firm and consolidated. Based on these observed conditions, we estimate that the soil bearing capacity is at least 2,000 psf and would recommend this value be used for design. Please let me know if you have any other questions. Best regards, Will A. Myers, P.E. 5/23/24