117.731—Mullica River.
The draws of the bridges listed in this section shall open on signal, except as follows:
(a)
The draw of the Lower Bank bridge, mile 15.0, need not open during the following periods unless at least four hours notice is given:
(b)
The draw of the Green Bank bridge, mile 18.0, need not open unless at least four hours notice is given during the following periods:
(c)
The drawspan must open as soon as possible for public vessels of the United States during the periods when four hours notice is required.