[Code of Federal Regulations]
[Title 33, Volume 2]
[Revised as of July 1, 2003]
From the U.S. Government Printing Office via GPO Access
[CITE: 33CFR165.120]

[Page 632-633]
 
                TITLE 33--NAVIGATION AND NAVIGABLE WATERS
 
   CHAPTER I--COAST GUARD, DEPARTMENT OF HOMELAND SECURITY (CONTINUED)
 
PART 165--REGULATED NAVIGATION AREAS AND LIMITED ACCESS AREAS--Table of 
Contents
 
 Subpart F--Specific Regulated Navigation Areas and Limited Access Areas
 
Sec. 165.120  Safety Zone: Chelsea River, Boston Inner Harbor, Boston, MA.

    (a) Location. The following area is a safety zone: The waters of the 
Chelsea River, Boston Inner Harbor, for 100 yards upstream and 
downstream of the center of the Chelsea Street Draw span (in the 
approximate position of Latitude 4233[min]10[sec]N., Longitude 
7101[min]23[sec] W.).
    (b) Regulation. The following standards are the minimum requirements 
for transit of the Safety Zone. Additional precautions may be taken by 
the pilot and/or person in charge (Master or Operator).
    (1) All tankships greater than 1,000 Gross Tons shall be under the 
direction and control of the Licensed Federal Pilot. This does not 
relieve persons in charge (Masters or Operators) from their ultimate 
responsibility for the safe navigation of vessels.
    (2) All vessel(s) speed shall be kept to a minimum considering all 
factors and the need for optimum vessel control.
    (3) Restrictions on size and draft of vessels:
    (i) No vessel greater than 661 feet in length (using length overall) 
or greater than 90.5 feet in beam (using extreme breadth) shall transit 
the Safety Zone.
    (ii) No vessel greater than 630.5 feet in length or 85.5 feet or 
greater in beam shall transit the Safety Zone during the period between 
sunset and sunrise.
    (iii) No tankship greater than 550.5 feet in length shall transit 
the Safety Zone, either inbound or outbound, with

[[Page 633]]

a draft less than 18.0 feet forward and 24.0 feet aft.
    (4) Restrictions when the Chelsea River channel is obstructed by 
vessel(s) moored at the Northeast Petroleum Terminal located downstream 
of the Chelsea Street Bridge on the Chelsea, MA side of the Chelsea 
River--hereafter referred to as the Jenny Dock (approximate position 
4223[min]09[sec] N., 7101[min]31[sec] W.)--or the Mobile Oil 
Terminal located on the East Boston Side of the Chelsea River downstream 
of the Chelsea Street Bridge (approximate position 4223[min]05[sec] 
N., 7101[min]31[sec] W.):
    (i) When there is a vessel moored at each terminal, no vessel 
greater than 300.5 feet in length or greater than 60.5 feet in beam, 
shall transit the safety zone.
    (ii) When a vessel with a beam greater than 60.5 feet is moored at 
either terminal, no vessel greater than 630.5 feet in length or greater 
than 85.5 feet in beam shall transit the Safety Zone.
    (iii) When a vessel with a beam greater than 85.5 feet is moored at 
either terminal, no vessel greater than 550.5 feet in length or greater 
than 85.5 feet in beam shall transit the Safety Zone.
    (5) Requirements for tug assistance:
    (i) All tankships greater than 630.5 feet in length or greater than 
85.5 feet in beam shall be assisted by at least four tugs of adequate 
horsepower.
    (ii) All tankships from 450 feet in length up to and including 630.5 
feet in length and less than 85.5 feet in beam shall be assisted by at 
least three tugs of adequate horsepower.
    (iii) All tug/barge combinations with a tonnage of over 10,000 Gross 
Tons (for the barge(s), in all conditions of draft, shall be assisted by 
at least one tug of adequate horsepower.
    (6) U.S. Certificated integrated tug/barge (ITB) combinations shall 
meet the requirements of a tankship of similar length and beam except 
that one less assist tug would be required.
    (7) Variances from the above standard must be approved in advance by 
the Captain of the Port of Boston, MA.

[CCGD1-85-4R, 51 FR 10835, Mar. 31, 1986; 51 FR 23415, June 27, 1986, as 
amended by USCG-1998-3799, 63 FR 35532, June 30, 1998]