Specifications include, but are not limited to: Working hours shall be 7:30 a.m. to 4:00 p.m. Monday through Friday with the exception of legal holidays. High volume roadways may require work hour restrictions. ; Remove and Reset Existing Fence- This item shall include removal, storage and resetting of existing fence and gates; perform such clearing and grubbing as may be necessary to remove and reset the fence to the required grade and alignment. In no case, shall the clearing strip be wider than 10 feet, except with the permission of the Engineer ; Concrete - Mix No. 2 Concrete shall conform to the requirements of Section 902 except that the waiting time may be extended a maximum of one half hour, in which case a retarder will be added to the concrete at the manufacturer's recommended dosage.