GeoCapitol conducted a geotechnical engineering investigation for the redevelopment of the Charles E. Young Elementary school, a 2-story brick school building. Construction includes a 40,000-gallon cistern and redesign of a small parking area with permeable pavers. Prior to the field investigation, the client asked GeoCapitol to complete supplementary services related to the renovation of the basement. Subsurface conditions were investigated by drilling four soil test borings in the site development area.
The basement, which contains the mechanical room, has periodically been flooded due to a leaking water line pipe. After water was removed, GeoCapitol conducted a hand auger soil boring to verify if the slab on grade soils were impacted from the flooding. The hand auger boring involved getting through the slab gravel and into the subgrade soils where dynamic cone penetrometer (DCP) equipment was utilized to verify the suitability of the soils to support a new slab on grade. Recommendations were provided regarding foundations, subdrainage, pavements, earthwork, and stormwater management by infiltration.