117.224—Thames River.
The draw of the Amtrak bridge, mile 3.0 in New London, shall open—
(a)
Immediately on signal for public vessels of the United States and commercial vessels; except, when a train scheduled to cross the drawbridge, without stopping, has passed the Midway, Groton, or New London stations and is in motion toward the drawbridge, the drawspan must not be opened for the passage of any vessel until the train has crossed the drawbridge; and
(b)
As soon as practicable for all other vessels but no later than 20 minutes after the signal to open is given.