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No. 2933 approving/authorizing the execution of an addendum to the Master Agency Agreement (Memorial Hospital Streetscape Improvements Project, Bid 3 & 4)
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No. 2933 approving/authorizing the execution of an addendum to the Master Agency Agreement (Memorial Hospital Streetscape Improvements Project, Bid 3 & 4)
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10/18/2012 11:42:50 AM
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utilities, pipes, voids, or other obstructions can be <br />interpreted and potentially located in the Field. <br />vii. It should be noted that overall quality and vertical <br />penetration of GPR data is entirely dependent on the <br />composition of subsurface materials. Highly electrically <br />conductive materials typically serve to attenuate the <br />electromagnetic radar energy and not allow for <br />significant depth penetration. Therefore, while due care <br />will be exercised in the acquisition and interpretation of <br />GPR measurements, no warranties or guarantees can be <br />offered with respect to existing subsurface conditions. <br />viii. Once the field information is completed and checked by <br />the field crew supervisor, the SUE Field Supervisor will <br />perform a quality control (QC) check of the project by <br />cross checking the to verify that the all designating is <br />complete. <br />b. AirNacuum Subsurface Utility Locating for up to 30 test holes. <br />i. Call the appropriate Indiana "One- Call" prior to digging <br />any test holes. <br />ii. Excavate test hole to expose the selected utility at a <br />specific point indicated by DLZ. <br />W. Excavate test hole by vacuum excavation or hand <br />digging in order to prevent damage to wrappings, <br />coatings, or other protective coverings. <br />iv. Minimum excavation assumed to be 8 "x 8" (64 square <br />inches). <br />V. Follow ASCE Standards for Collection and Depiction of <br />Existing Subsurface Utility Data: <br />• The horizontal and vertical location of the top of <br />the utility referenced to the project survey datum. <br />• The elevation of the existing grade over the utility <br />at a test hole referenced to the project survey <br />datum. <br />• The outside diameter of the utility and <br />configuration of non - encased, multi- conduit <br />systems. <br />• Type of utility (e.g., fiber optic, gas, water, sewer, <br />telephone, etc.). <br />• The utility structure's material composition, when <br />reasonably ascertainable. <br />• The paving thickness and type, where applicable. <br />• An above ground marker (i.e., PK nail or 518" <br />capped rebar) will be placed above the centerline <br />of the utility; to be used for horizontal and vertical <br />reference information. <br />5of11 <br />Supplemental Agreement No. 2 <br />
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