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Night drilling on Eastern Avenue

CCWRD PWI #668 – The project consists of approximately 27,400 lineal feet of gravity sewer line. The starting point is approximately 50 feet east of the intersection of McLeod Drive and Patrick Lane and the line continues through several public rights-of-way with the end point in the intersection of Nellis Boulevard and Flamingo Road. The sewer line starts as a 54-inch diameter and ends as a 66-inch diameter. GES provided a geotechnical evaluation consisting of 65 borings to an average depth of 15’ to 50’, and laboratory testing of soil samples. During the design process, GES participated in monthly progress meetings and lead a geotechnical and dewatering workshop with District and Consultant staff. In addition to preparing a separate Data Report that is referenced in the project specs, we also prepared a geotechnical design memorandum, a groundwater technical memorandum, and dewatering conceptual design and specifications. Through this process, we provided detailed recommendations regarding CLSM pipe bedding, dewatering induced settlement, fault crossings, liquefaction, cemented soils, corrosivity, and pipe support E values. Also provided was: subsurface modeling for trenchless construction; groundwater contaminant characterization for dewatering permit parameters; engineering construction services; and overall project coordination.

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For both of the alignments, GES is currently providing geotechnical construction support as well as environmental services.

CCWRD PWI #669 – The project consists of approximately 27,400 lineal feet of gravity sewer line including three ancillary sewer segments known as Reach 43, Reach 38 and Package 5. The starting point is approximately 1,000 feet east of the intersection of Bermuda Road and Eldorado Lane and the line continues through several public rights-of-way with the end point near the intersection of Paradise Road and Robindale Road.   GES provided geotechnical evaluation consisting of 69 borings to an average depth of 20’ to 65’, and laboratory testing of soil samples. During the design process, GES participated in monthly progress meetings and lead a geotechnical and dewatering workshop with District and Consultant staff. In addition to preparing a separate Data Report that is referenced in the project specs, we also prepared a geotechnical design memorandum, a groundwater technical memorandum, and dewatering conceptual design and specifications. Through this process, we provided detailed recommendations regarding CLSM pipe bedding, dewatering induced settlement, fault crossings, liquefaction, cemented soils, corrosivity, and pipe support E values. Also provided was: subsurface modeling for trenchless construction; groundwater contaminant characterization for dewatering permit parameters; engineering construction services; and overall project coordination.