Cypresswood Utility District Tank
The Cypresswood Utility District Water Plant #1 project involved construction of a 24-foot tall, 55-foot diameter pre-stressed concrete municipal water tank with a 420,000 gallon capacity. GES was contracted to provide geotechnical engineering recommendations for the tank foundation, subgrade and adjoining paving areas.
GES’ field investigation included 150 feet of soil borings to depths of 50-feet below ground surface. All drilling and logging was performed by GES personnel. The geotechnical investigation included swell, consolidation and unconfined compression testing of the subgrade soils.
GES’ geotechnical report provided engineering recommendations for ring wall and auger cast pile foundations as well as subgrade preparation recommendations. Due to the laboratory swell testing results, GES was requested to perform a detailed settlement analysis and provide additional engineering recommendations for pad preparation to limit the potential vertical slab movements to within the tolerances allowed by the tank manufacturer.
GES was requested to perform bearing calculations to verify that the surrounding surficial soils would support loading from the crane during tank erection. GES provided engineering recommendations for subgrade improvements and for matting at the crane outriggers to ensure that the work could be completed safely.