33 CFR § 117.585 - Acushnet River.
(a) The New Bedford-Fairhaven RT-6 Bridge, mile 0.0 will be opened promptly, provided proper signal is given, on the following schedule:
(1) On the hour between 6 a.m. and 10 a.m. inclusive.
(2) At a quarter past the hour between 11:15 a.m. and 6:15 p.m. inclusive.
(3) At all other times on call.
(c) Each opening of the draw, from the time vehicular traffic flow is stopped until the flow resumes, shall not exceed 15 minutes except for vessels whose draft exceeds 15 feet or in extraordinary circumstances.
(d) From 6 p.m. on December 24 to midnight on December 25 and from 6 p.m. on December 31 to midnight on January 1, the draw shall open on signal if at least a two-hour notice is given by calling the number posted at the bridge.