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Full depth repair and full panel replacement includes removal of the damaged concrete <br /> and defective dowel bars, install new dowels, restore joints or cracks, if required, place <br /> concrete and seal joints or cracks. <br /> Joint repair, Type A, and crack repair, Type A, are minor repairs that can develop into <br /> more severe damage, and thus more costly repair if not repaired and maintained on a <br /> regular basis. With the proper equipment, the City can make these repairs in their <br /> normal maintenance work. <br /> When designing a repair method for concrete pavement, the total extent of damage may <br /> not always be apparent during the design phase of the project. During construction, the <br /> repair area may become more or less extensive and may require a different repair <br /> method than what was planned. Inspection then becomes an important phase of <br /> construction. "Chaining" by the inspector is essential before concrete is removed, to <br /> determine the repair area, and after the concrete is removed, to determine if enough <br /> concrete has been removed. If enough concrete'is not removed, further damage may <br /> occur adjacent to the repaired area. Therefore, good inspection is essential to ensure a <br /> quality repair of the pavement. <br /> Where pavement has failed due to settlement of the subgrade, as in the case of Chandler <br /> Drive a soils investigation should be performed to help determine the condition of the <br /> subgrade and whether overexcavation and recompaction is required. Some fill and <br /> grading may be required. <br /> On Chandler Drive, the damage on the easterly side of the road, within a 1200 foot <br /> reach, is so extensive that the repair methods previously described are no longer cost <br /> effective. The entire easterly half of the road within this 1200 foot reach should be <br /> removed and replaced. This will result in some undamaged pavement being removed; <br /> however, this repair is less, labor intensive and therefore less costly. <br /> In addition, the existing storm sewer in Chandler Drive should be televised to determine <br /> if there are any bad joints, or structural damage that may allow backfill to enter the <br /> storm sewer causing settlement of the street pavement. <br /> -4- <br />