33 CFR § 117.547 - Bush River.
The draw of the Amtrak Bridge, mile 6.8 at Perryman, shall operate as follows:
(a) Shall open twice a day from May 1 through October 31, on Saturdays, Sundays, and Federal holidays that fall on a Friday or a Monday, when a proper request has been received.
(b) Request for an opening is given to the Amtrak Assistant Division Engineer at 410-642-1588 and or email at BridgeOpeningRequest@Amtrak.com by an authorized representative of the Bush River Yacht Club no later than noon on the Friday just preceding the day of opening or, if that Friday is a Federal holiday, no later than noon on the preceding Thursday.
(c) Amtrak determines the times for openings and shall schedule the times:
(1) During daylight hours, six to ten hours apart; and
(2) One opening before noon and one after noon.
(d) Amtrak shall notify a representative of the Bush River Yacht Club of the times of all openings for the weekend (or extended weekend) in question no later than 6 p.m., on the Friday just preceding the weekend or, if that Friday is a Federal holiday, no later than 6 p.m., on the preceding Thursday.
(e) Each opening shall be of sufficient duration to pass waiting vessels.
(f) At all other times the draw need not open for the passage of vessels.