Tap any paragraph to write a margin note. Your notes collect in the Desk below the text and file under cases with @. The side-by-side margin rail opens on a larger screen.

Code · CFR · Title 33 — Navigation and Navigable Waters · Part 117 · § 117.531

§ 117.531. Piscataqua River.

349 words·~2 min read·/us/cfr/t33/s§ 117.531·

A research copy — for the controlling text, always check the official state or federal source. Not legal advice.

(a)The following requirements apply to all bridges across the Piscataqua River:
(1)Public vessels of the United States, commercial vessels over 100 gross tons, inbound ferry service vessels and inbound commercial fishing vessels must be passed through the drawspan of each drawbridge as soon as possible. The opening signal from these vessels is four or more short blasts of a whistle, horn or a radio request.
(2)The owners of these bridges shall provide and keep in good legible condition clearance gauges for each draw with figures not less than 18 inches high designed, installed and maintained according to the provisions of § 118.160 of this chapter.
(3)Trains and locomotives shall be controlled so that any delay in opening the draw shall not exceed five minutes. However, if a train moving toward the bridge has crossed the home signal for the bridge before the signal requesting opening of the bridge is given, that train may continue across the bridge and must clear the bridge interlocks before stopping.
(4)Except as provided in paragraphs
(b)through
(c)of this section the draws shall open on signal.
(b)The draw of the Memorial (US 1) bridge, mile 1.9, shall open on signal; except that from 15 May through 31 October, from 7 a.m. to 7 p.m., the draw need be opened only on the hour and half hour for recreational vessels and commercial vessels less than 100 gross tons except as provided in (a)(1).
(c)The draw of the Sarah M. Long (Route 1 Bypass) bridge, mile 2.5, shall open as follows:
(1)The main ship channel draw shall open on signal; except that from 15 May through 31 October, from 7 a.m. to 7 p.m., the draw need be opened only at quarter of and quarter after the hour for recreational vessels and commercial vessels less than 100 gross tons except as provided in (a)(1).
(2)\[Reserved\] \[CGD1-89-111, 55 FR 13275, Apr. 10, 1990, as amended by USCG-2001-10881, 71 FR 70311, Dec. 4, 2006; USCG-2014-0410, 79 FR 38433, July 7, 2014; USCG-2018-0443, 83 FR 30039, June 27, 2018\]
Connections10 cite this
★   the supreme law of the land   ★
Don't Tread on Me
E Pluribus Unum — out of many, one

"If you don't know your rights, you don't have any."

Marginalia · a citizen's law index
A research desk, not legal advice. Always read the cited source before relying on a summary.
Questions or an issue? support@self-law.org
disclaimerMarginalia is a research index, not a law firm. Nothing on this site is legal, tax, or financial advice and no attorney–client relationship is formed by using it. Statutes, regulations, and case law change; summaries, search results, AI output, and member posts may be incomplete, out of date, or wrong. Any interpretation drawn from material on this site should be validated by a licensed attorney in your jurisdiction before you act on it.