Marine Exchange of Southern California&

Vessel Traffic Service of Los Angeles and Long Beach

DynamicUnderkeel Clearance

(UKC) Project

Senate Ocean Caucus Briefing

“Making a Difference: Why Ocean Observing

Matters”

9 July 2015

Captain Kip LouttitExecutive Director &

UKC Program Manager

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Ports of Los Angeles – Long Beach

Nation’s largest port complex World’s 9th busiest port complex by container volume Over $235 billion in annual trade > 14 million TEU’s annually 47 % of containers entering U.S. > 235 million metric tons of cargo > 1 million passengers ~500,000 autos > 50 % of California’s oil ~3 million jobs nationwide

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Market segments by ship count 2010-2014

Barge/ITB

Bulk Bunker Cont Gen/C Other Pass Refrig Repair RoRo Stores Tanker Vehicle0

50010001500200025003000

5 Year Actual Count by Type 2010-2014

2010 2011 2012 2013 2014

Vessel Type 5 Year Average Count by Type

2010-2014 Trend1 Barge/ITB 141 Decrease 118 3%

2 Bulk 225 Steady 206 5%3 Bunker 280 Decrease 254 6%4 Container 2460 Decrease 2271 51%5 General Cargo 232 Increase 267 6%6 Other 129 Decrease 100 2%7 Passenger 285 Increase 356 8%8 Refrigerator 4 Steady 3 0.1%9 Repair 23 Steady 22 0.5%

10 RoRo 40 Decrease 35 1%11 Stores 5 Decrease 0 0.0%12 Tanker 621 Increase 606 14%13 Vehicle 193 Decrease 184 4%

Total 4638 Decrease 4422 100%Note: Some trends are not consistent

2014

Containers 51%

Tankers 14%

Market segments generally constant

Passengers 8%

Updated: 5 Jan 2015

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Dynamic Underkeel Clearance Project…The Challenge…Very Large Tankers enter the Port of Long Beach

How can we reduce the risk they touch bottom?

M/V Solana passing Jacobsen (Long Beach) Pilot Station.Length: 1,082 feet Weight: 296,681 tonsBeam (width): 197 feet Maximum Draft: 64.9 feet

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Approach to port ofLong Beach…

Channel dredged to 76 feet

Coast Guard set maximum draft to enter port at 65’

11’ clearance underkeel

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76’ channel 65’ Max Draft per Coast Guard

With Zero Pitch:

11’ Under Keel Clearance

76’ channel 65’ Max Draft per Coast Guard

Result: Only 1.4 foot Under Keel Clearance!

With 1 degree pitch, the draft increases 9.6 feet!

Example: 1,100 foot tanker with 65’ draft

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The Present:

GO/NO GO decision made using:

CDIP Swell WarningsExperienceSeaman’s EyeObserved pitch & roll

far enough offshore to permit “bail-out” before committing to channel

Site 18

Site 19

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Moving to the Future… UKC Program:

& PIER 121 USERS

Stakeholders:

Partners in providing critical weather, wave, and swell information to UKC:

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PROTIDE takes predicted:water levels, currents,wave conditions, channel depth, course, ship dimensions, and vertical ship motion (roll/pitch/squat)

…and calculates the under keel clearance & bottom touch probability.

PROTIDE is now used in three harbors in the Netherlands to support the operational process (Port of Rotterdam, Port of Amsterdam & the Eemshaven).

The Potential Future:

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1. Increase safety by reducing the risk of an accidental grounding caused by the pitch or roll of a large vessel causing it to impact the bottom.

2. Increase efficiency by enabling ship owners and masters to adjust arrival times based on the pitch and roll program being able to predict when pitch and roll will be out of limits to enter port due to unacceptable under keel draft clearance

3. Reduce emissions by enabling larger ships to carry more cargo to enter the POLB, which could reduce overall stack emissions per ton of cargo arriving at the port.

Goals of Dynamic Underkeel Clearance Project

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Picture1

3 Wave Buoys provide critical local conditions to mariners & models

12Display at Marine Exchange. Buoys update every 30 minutes

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Request ID 11

Ship 230,000 ton VLCC (6 / T006)

Ship dimensions l / w / dwt 285 m 49 m 250000 tons

Draft f / m / a 20.46 m 20.46 m 20.46 m

Berth Harbor entrance (23.16 m / Inbound)

Requested time of departure 2014-08-22 00:00

Water displacement 234294 tons

GM 7.78 m

GG' 0.4 m

Roll period 13.71 s

Estimation method used Yes

Submitted by Take Roes (2014-08-27 09:29)

Outputs: Predicted UKC and Probability of Touch

2. Environmental Info:Water level, tide, weather, sea, and swell

Predicted pitch is a max of 0.75 degreesPredicted roll is a max of 6.15 degrees

Resulting Underkeel Clearance ranges from:3.9 m at the start of the transit to4.1 m at the end of the transit

Risk of touching bottom is:0.020% at start of transit,decreases to .0038% in the middle, andincreases to .0050% at the end

Start of transit End

Example: A 935 foot tanker weighing 230,000 tons enters Long BeachINPUTS to PROTIDE:1. Ship Info:

RollPitch

Under Keel Clearance

Risk of Touch

Start of transit End

Determination: The transit is safe

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Other potential UKC applications: Unique vessels, Bad weather, Larger Container & Cruise

Ships Other ports

Ship exitingLong Beach in

Hurricane Marie swells

Ship enteringLong Beach with

new cranes

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Questions? Comments?Summary:

The key to the safe movement of all vessels,now and in the future,

is accurate and reliable, actual and predictive,

weather, swell, and wave information

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Point of Contact:CAPT Kip Louttit, MX SoCal Executive Director &

UKC Program ManagerWork: 310-519-3127 Cell: 310-897-1714 klouttit@mxsocal.org

MX: There when you need us most…emergencies (fires, medical, rescue),

fog and bad weather,natural or man made disasters, and congestion.

MX mission: 7 x 24 x 365 provide traffic management, communications, and maritime information services to

promote a safe, secure, efficient, reliable, and environmentally sound marine transportation system.

24 Hour Vessel Traffic CenterWatch Floor: 310-832-6411

www.mxsocal.orgTwitter: @mxsocal

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End