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Justification for Contract Change Order #2 <br />Gifford Area Sewer Project, Contract #3 <br />Farmers Home Administration Funding <br />A. Raise Water Main on 38th Place - <br />Field excavation during the construction of the gravity sewer <br />line north of 38th Place on 19th Avenue uncovered the 8" <br />diameter water main with approximately 4' of cover. As -built <br />drawings of this water main indicated that 3' of cover could <br />have been expected. The existing water main is in direct <br />conflict with the proposed sewer line requiring the 8" diameter <br />water main to be raised, at a cost as reflected in Item #96. <br />B Additional Cost to Protect Southern Bell Duct Run & Fiber <br />Optic Cable while Constructing 8" Diameter Gravity Sewer on <br />West side of U.S. Highway #1, South of 41st Street' - <br />Field excavation for gravity sewer_ along U.S. Highway #1 <br />uncovered a Southern Bell Duct Run. This duct run includes a <br />fiber optic cable. The location and content of the duct run <br />differs materially from information provided by Southern Bell <br />as to the locations of their existing underground utilities. <br />The actual location of the duct run is in conflict with the <br />proposed 8" diameter gravity sewer. To construct the gravity <br />sewer, additional care must be given during excavation. This <br />care includes, but is not limited to, stainless steel bands <br />around ducts at all locations where duct bank.is exposed. The <br />Contractor anticipates they will now have to dewater and hand <br />dig around the fiber optic cable. This will increase time of <br />constructing the 8" diameter gravity sewer. Thisadditional <br />cost is reflected in Item #97. <br />76 <br />JAN 2 4. 'j9 <br />• <br />B00K 75 friE 724 <br />