Harbor Safety Plan Flashcards
In POLB, berths are sounded at a frequency of _____to _____years to verify water depth and any maintenance dredging needs.
1 to 3 years
In POLA, cruise terminals are surveyed, dived, and sounded how often? Oil terminal berths are sounded how often?
Monthly
Annually
Container and drybulk berths are sounded every _____years. All other berths (including out-of-service berths) are sounded at least every _____years.
3 years
5 years
PORT OF LOS ANGELES: All _______deep-water terminals lay within five miles of the Los Angeles Pilot Operating Area boundary, and reached via the Los Angeles Main Channel, with a project depth of minus ______feet (16.15M) at Mean-Lower-Low-Water (MLLW). The Angeles Deep Water Approach Channel from Los Angeles Buoy #1 to Buoy #10 has a project depth of minus ____ feet (24.68M) at Mean-Lower-Low-Water.
27 deep water terminals
53 feet
81 feet
The painting under the Vincent Thomas bridge : The platform will temporarily reduce the vertical clearance of the bridge by _____feet.
6 feet
Probably not a test question but good knowledge
U.S. ARMY CORPS OF ENGINEERS: The Corps of Engineers maintains the Federal Channels in Los Angeles/Long Beach Harbor. The channels and project depths are:
Pier 300 Turning Basin
Approach and Entrance Channels
All of these are how deep?
81 feet
Vincent Thomas Bridge :
2 fixed green lights mark what?
2 fixed red lights on each side of bridge mark what?
The center
Margins of the channel
When operating on the Navigable Waters of the United States (12 nautical miles from the baseline), the following vessel categories must monitor VHF FM Channel 13:
-power driven vessels 65.5’ (20 m.) or longer;
-vessels 26’ (7.9 m.) or longer with tows;
-vessels of 100 gross tons or more carrying one or more passengers for hire;
-vessels certified for 150 passengers or more for hire; and
-dredge and floating plants operating in or near a fairway or channel.
Just information only. No questions
Santa Ana’s :
Shortly before arriving on the coast, the Santa Ana may appear as an approaching dark–brown dust cloud. This positive indication often gives a ____to ____minute warning.
10 to 30 min
PORTS OF LOS ANGELES AND LONG BEACH: Occupying over_______ acres of land and water area in San Pedro Bay, the Ports of Los Angeles and Long Beach feature______ miles of waterfront, making it one of the world’s largest artificial harbor complexes.
15,000
57 miles
Harbor Safety Plan :
Local Port Tariffs require vessels of greater than_____ gross tons to use a federally-licensed pilot whenever navigating inside the breakwater.
300 gross tons
Vessel Traffic Service - for the port approaches covers a distance of____ nm from Point Fermin to the Federal Breakwater
25 nm
Contact Los Angeles Pilots on Channel ______or Long Beach Pilots on Channel_____ to arrange pilot service.
Limit their speed to_____ knots or less upon entry to the Precautionary Area.
Channel 73
Channel 12
12 knots
Vessel speed limits
Los Angeles (LA Port Tariff): Outer Harbor (between the breakwater and Reservation Point) if draft greater than 1.5 meters:_____ kts West Channel, Fish Harbor, marinas, yacht anchorage kts Everywhere else in the harbor____ kts
10 knots : 4.4 knots : 6 knots
In the channel between Los Angeles Main Channel Buoy #11and a position off the designated berth, minimum under-keel clearance is ____feet
Shifts via outer harbor between Los Angeles and Long Beach, minimum under-keel clearance is 3.0’
2 feet
Below are 2 major examples of what Rule
(b) A vessel of less than 20 meters in length or a sailing vessel shall not impede the passage of a vessel that can safely navigate only within a narrow channel or fairway.
(i) A vessel proceeding along the course of a narrow channel or fairway shall keep as near to the outer limit of the channel or fairway which lies on her starboard side as is safe and practicable.
Inland - Rule 9 Narrow channels
The Harbor Safety Plan defines the small craft advisory as :
High Winds: Whenever the National Weather Service issues a “small craft advisory” for sustained winds of _____to _____ knots potentially in combination with wave heights exceeding _____ feet
Restricted visibility For all other vessels: Three (3) times vessel’s LOA
21 - 33 knots
10 feet
When visibility inside the federal breakwater is less than_____ mile, the respective vessel traffic center (VTC) will impose one-way traffic restrictions when and where appropriate.
0.5 mile
ADVISORY ZONE
Navigable waters outside the breakwaters encompassed by the arc of a circle having its center at Point Fermin Light, drawn from a position on the shore near Newport Beach clockwise to the shore near Santa Monica. This circle’s radius is ______miles
25 miles
Geographical boundaries: California three-mile limit is known as the_______ ZONE
STATUTORY zone
Harbor safety plan states that Harbor area fog is most likely in_____ and from ______ through ______, when visibility over the bay is below 0.5 mile for 7-10 days per month. Fog is mostly a land (_______) type that drifts out and worsens in the late night and early morning
April and from October- February
radiation
Santa Ana winds may appear as an approaching dark–brown dust cloud. This positive indication often gives a_______ minute warning.
10 to 30 minute
The mean range of tide is ______ for Los Angeles Harbor and ______ for Long Beach Inner and Outer Harbors. The diurnal range is about _____ for both harbors and a range of ____ may occur at maximum tide.
3.8 feet and 3.7 feet
Diurnal range is 5.4 feet with a range of 9 feet as a maximum
CURRENTS:
The tidal currents follow the axis of the channels and rarely exceed one knot.. Near Reservation Point, the prominent hourly surge causes velocity variations as great as _______ knot. The more-restricted channel usually causes the surge through the Back Channel to reach a greater velocity at the east end of Terminal Island, rather than west of Reservation Point. In the Back Channel, hourly variation may be _____ knots or more.
One knot
1.5 knots
