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DocuSign Envelope ID: 313DA256 -1EDE- 4396- A716- 4C53B809027E <br />JERRY M. PASSMORE CENTER ADDITION AND RENOVATION <br />HILLSBOROUGH, NORTH CAROLINA <br />3.5 CONCRETE PLACEMENT <br />A. Place cast -in -place concrete according to ACI 318. <br />3.6 CLOSING ABANDONED STORM DRAINAGE SYSTEMS <br />A. Abandoned Piping: Close open ends of abandoned underground piping indicated to remain in <br />place. Include closures strong enough to withstand hydrostatic and earth pressures that may <br />result after ends of abandoned piping have been closed. Use either procedure below: <br />1. Close open ends of piping with at least 8 -inch- (203 -mm -) thick, brick masonry <br />bulkheads. <br />2. Close open ends of piping with threaded metal caps, plastic plugs, or other acceptable <br />methods suitable for size and type of material being closed. Do not use wood plugs. <br />B. Abandoned Manholes and Structures: Excavate around manholes and structures as required and <br />use one procedure below: <br />1. Remove manhole or structure and close open ends of remaining piping. <br />C. Backfill to grade according to Division 31 Section "Earth Moving." <br />3.7 IDENTIFICATION <br />A. Materials and their installation are specified in Division 31 Section 'Barth Moving." Arrange <br />for installation of green warning tape directly over piping and at outside edge of underground <br />structures. <br />1. Use warning tape or detectable warning tape over ferrous piping. <br />2. Use detectable warning tape over nonferrous piping and over edges of underground <br />structures. <br />3.8 FIELD QUALITY CONTROL <br />A. Inspect interior of piping to determine whether line displacement or other damage has occurred. <br />Inspect after approximately 24 inches (610 mm) of backfill is in place, and again at completion <br />of Project. <br />1. Submit separate reports for each system inspection. <br />2. Defects requiring correction include the following: <br />a. Alignment: Less than full diameter of inside of pipe is visible between structures. <br />b. Deflection: Flexible piping with deflection that prevents passage of ball or <br />cylinder of size not less than 92.5 percent of piping diameter. <br />C. Damage: Crushed, broken, cracked, or otherwise damaged piping. <br />d. Infiltration: Water leakage into piping. <br />e. Exfiltration: Water leakage from or around piping. <br />UTILITY STORM DRAINAGE PIPING 334100-4 <br />