1305M325R0002 - Attachment 2 - PAR Site Soil Sample Report - Project No. 731-23076.pdf

This is a geotechnical subsurface exploration and foundation recommendations report prepared by Burgess Engineering and Testing for a proposed tower project in Norman, Oklahoma, dated June 22, 2023. The report was prepared for the Radar Research & Development Division of NOAA's National Severe Storms Laboratory.

The report details findings from a 35-foot deep test boring at coordinates 35.235233°, -97.465347°, which revealed medium to high plasticity lean clay overlaying bedrock, with shale encountered at 20 feet below ground surface and groundwater at 25 feet. The report recommends either a mat foundation system placed at least 5 feet below existing grade with a bearing capacity of 3,000 psf and estimated 1-inch settlement, or alternatively, a drilled shaft foundation system embedded at least 3 feet into shale with end bearing capacity of 18,000 psf and skin friction of 1,000 psf. The site is classified as Site Class C per IBC 2015 with no slope instability or liquefaction concerns. The report includes detailed specifications for foundation construction, soil parameters, lateral load analysis, and construction considerations including drainage and weather limitations.