[Code of Federal Regulations] [Title 33, Volume 1] [Revised as of July 1, 2006] From the U.S. Government Printing Office via GPO Access [CITE: 33CFR117.471] [Page 585] TITLE 33--NAVIGATION AND NAVIGABLE WATERS CHAPTER I--COAST GUARD, DEPARTMENT OF HOMELAND SECURITY PART 117_DRAWBRIDGE OPERATION REGULATIONS--Table of Contents Subpart B_Specific Requirements Sec. 117.471 Little Black Bayou. The draw of the Southern Pacific railroad bridge, mile 1.3 at Southdown, need not be opened for the passage of vessels.