TITLE 33--NAVIGATION AND NAVIGABLE WATERS

CHAPTER I--COAST GUARD, DEPARTMENT OF TRANSPORTATION (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 42 deg.33'10"N., Longitude 71 deg.01-23
West).
(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 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
42 deg.23'09" N., 71 deg.01'31" W.)--or the Mobile Oil Terminal located
on the East Boston Side of the Chelsea River downstream of the Chelsea
Street Bridge (approximate position 42 deg.23'05" N., 71 deg.01'31" 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]