Section 117.595 - Danvers River(a) The requirements in this paragraph apply to all bridges across the Danvers River: (1) The owners of these bridges shall provide and keep in good legible condition clearance gauges for each draw with figures not less than 12 inches high, designed, installed, and maintained according to the provisions of § 118.160 of this chapter.(2) Trains and locomotives shall be controlled so that any delay in opening the draw span shall not exceed ten 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.(b) The draw of the Massachusetts Bay Transportation Authority (MBTA)/AMTRAK Bridge, at mile 0.05, between Salem and Beverly, shall open on signal; except that, from midnight to 5 a.m., daily, and on December 25 and January 1, the draw shall open as soon as possible, but not more than one hour after notice is given to the drawtenders either at the bridge during the time the drawtenders are on duty or by calling the number posted at the bridge.(c) The Kernwood Bridge, at mile 1.0, shall operate as follows: (1) From May 1 through September 30, midnight to 5 a.m., and from October 1 through April 30, 7 p.m. to 5 a.m., draw shall open on signal after at least a one-hour advance notice is given by calling the number posted at the bridge.(2) From noon to 6 p.m. on Thanksgiving Day and all day on Christmas and New Years Day, the draw shall open on signal after at least a one-hour advance notice is given by calling the number posted at the bridge.CGD01-99-148, 64 FR 46275, Aug. 25, 1999, as amended by CGD01-04-096, 69 FR 67058 , Nov. 16, 2004