§ 117.593. Chelsea River.

159 words·~1 min read·/us/cfr/t33/s§ 117.593·

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(a)All drawbridges across Chelsea River shall open on signal. The opening signal for each drawbridge is two prolonged blasts followed by two short blasts and one prolonged blast. The acknowledging signal is three prolonged blasts when the draw can be opened immediately and is two prolonged blasts when the draw cannot be open or is open and must be closed.

(b)The draw of the Chelsea Street Bridge, mile 1.3, at Chelsea, shall open as follows:

(1)The draw shall open on signal to 139 feet above mean high water for all vessel traffic unless a full bridge opening to 175 feet above mean high water is requested.

(2)The 139 foot opening will be signified by a solid green light over a flashing green light and the full 175 foot opening will be signified with two solid green range lights. \[USCG-2019-0809, 85 FR 15069, Mar. 17, 2020, as amended by USCG-2024-1103, 90 FR 52877, Nov. 24, 2025\]

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§ 117.593

Chelsea River.

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