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A. DESCRIPTION <br /> 1. Portions of the pressure mains shall be installed by the <br /> directional bore method within the limits indicated of the <br /> contract plans and as specified here in. Generally, as a <br /> minimum, the pressure main is to be located within the road <br /> right-of-way and shall be installed by directional boring. <br /> 2. This section includes material, performance and installation <br /> standards, and the contractor's responsibilities associated with <br /> the furnishing of labor, material, equipment, and identical <br /> required to install, complete, required trenchless installation of <br /> pressure mains, as shown on the Drawings and as specified <br /> herein. <br /> B. EXPERIENCE <br /> 1. The Contractor must demonstrate expertise in trenchless <br /> method by providing a list of ten (10) utility references for <br /> which similar work has been preformed in the last two years. <br /> The references should include a name and phone number <br /> where the contact can be made to verify the contractor's <br /> capability. The contractor must provide documentation <br /> showing successful completion of the projects used for <br /> reference. Conventional trenching experience will not be <br /> considered applicable. <br /> 2. Supervisory personnel must be adequately trained and shall <br /> have at least four (4) years experience in directional boring. <br /> The Contractor shall submit the names and resumes of all <br /> supervisory field personnel prior to construction. <br /> 3. Because of time constraints, the Contractor may wish to <br /> provide multiple experienced directional boring crews. <br /> 4. Directional boring equipment shall be capable of installing the <br /> minimum pipe diameter noted on the drawings. <br /> C. SUBMITTALS <br /> 1. Submit technical data for equipment including clay slurry <br /> material, method of installation with working drawings, and <br /> proposed sequence of construction for approval by the <br /> Engineer. <br /> 2 Prior approval for directional boring, the Contractor must <br /> submit the names of supervisory personnel, and history <br /> information of the directional boring experience. In addition, <br /> the Contractor must submit for approval the nameplate, data <br /> for the drilling equipment, mobile spoils removal units and <br /> Material Safety Data Sheets (MSDS) information for the drilling <br /> slurry compounds. <br /> 3. The Contractor is required to bring to the attention of the <br /> engineer any known design discrepancies with actual <br /> tunneling methods that the contractor will be performing. This <br /> 3 - 10 <br />