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• SPECIAL PROVISION <br />HEADWALLS <br />DESCRIPTION <br />The constructing of concrete headwalls on pipe culverts. <br />CONSTRUCTION REQUIREMENTS <br />This item shall consist of constructing concrete headwalls together with concrete wing <br />walls, aprons and cutoff walls. <br />METHOD OF MEASUREMENT <br />Per each headwall in place <br />BASIS OF PAYMENT <br />• The accepted quantities will be paid for at the contract price. <br />PAY ITEM PAY UNIT <br />Headwalls Each <br />Includes excavation, shoring, forming, concrete Class D, reinforcing steel, equipment and <br />all incidentals necessary to complete the item. <br />• <br />