117.588—Bass River.
The Hall Whitaker Bridge, mile 0.6 at Beverly, shall operate as follows:
(b)
The owners of this bridge 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.
(c)
That the drawspan for the Hall Whitaker Drawbridge must open on signal if at least 24 hours notice is given.