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Section 02310 <br /> HORIZONTAL DIRECTIONAL DRILLING <br /> Submittals shall include complete working descriptions and drawings describing the details <br /> of the proposed method of construction and the sequence of operations. The procedures <br /> shall detail the method of pilot hole drilling, reaming, pipe welding, pipe stringing and <br /> bundling, pull back methods, excavations, shoring and bracing, and dewatering techniques if <br /> necessary, that are proposed to be used. Submittals shall include the following: <br /> A. Plan Drawings <br /> Plan drawings of proposed drill side and pipe side construction area requirements. Drawing <br /> shall show entrance and exit hole pits, equipment layout, material storage areas, security <br /> fencing layout and gates, and proposed storage, fabrication and pullback staging areas for <br /> the conduit pipe. <br /> B. Plan of Execution <br /> Written plan of execution, including proposed procedures and sequencing for excavation, <br /> pilot hole drilling and tracking, reaming, pipe fabrication and staging, pipe pullback, and <br /> noise mitigation. <br /> C. Construction Milestone Schedule <br /> A construction milestone schedule showing the following activities related to each of the <br /> bores as a minimum: <br /> 1. Site preparation <br /> 2. Drill side equipment mobilization and setup <br /> 3. Pipe delivery <br /> 4. Fusing or welding pipe <br /> 5. Staging pipe strings <br /> 6. Drilling of pilot holes <br /> 7. Reaming <br /> 8. Pipe pull back <br /> 9. Equipment demobilization <br /> Walnut Grove Sewer Project(Conformed) 02310-3 SA0160401 <br /> March 2008 N:Asa0I60401\Specs\WG Conform\Div 2\02310.doc <br />