The draw of the US 70 bridge, mile 0.1, at Beaufort, will open as follows:
(a) From 6 a.m. to 10 p.m., the draw need only open on the hour and on the half hour; except that Monday through Friday the bridge need not open between the hours of 6:30 a.m. to 8 a.m. and 4:30 p.m. to 6 p.m.(b) From 10 p.m. to 6 a.m., the bridge will open on signal.