Code of Federal Regulations Title 33. Navigation and Navigable Waters § 33.117.720 Great Channel

(a) From May 15 through October 15 from 10 p.m. to 6 a.m., the draw need only open if at least four hours advance notice is given.

(b) From October 16 through May 14, the draw need only open if at least 24 hours advance notice is given.

(c) From 9:15 a.m. to 2:30 p.m. on the fourth Sunday in March of every year, the draw need not open for vessels. If the fourth Sunday falls on a religious holiday, the draw need not open from 9:15 a.m. to 2:30 p.m. on the third Sunday of March of every year.