The draw of the Corson Inlet Bridge, mile 0.9, at Strathmere, shall open on signal; except that from October 1 through May 15 from 10 p.m. to 6 a.m. and from 6 a.m. to 10 p.m. on December 25 the draw need open only if at least two hours notice is given.
33 C.F.R. §117.714