The draws of the Terrebonne Parish Police Jury bridges, miles 7.5, 15.0, 18.7 and 22.5, between Gibson and Houma, shall open on signal if at least 24 hours notice is given. The draw of the US182 bridge, mile 7.0 near Gibson, need not be opened for the passage of vessels.
33 C.F.R. §117.425