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World DREDGING Mining & Construct ion, Vol. 51, 11/12 - 8/18 WorldDREDGING.com 1

2 WorldDREDGING.com World DREDGING Mining & Construction, Vol. 51, Nos. 11/12 - 8/18


W o r l d D R E D G I N G M i n i n g & C o n s t r u c t i o n

Volume 51, Nos. 11 / 12 - 8 / 18 | US ISSN 1045 - 0343

Board of Industry Advisors

Contractors

Jim McNally West Coast Regional Mgr. & Senior VP

MANSON CONSTRUCTION CO.

Robert RamsdellDirector of Production Engineering

GREAT LAKES DREDGE & DOCK CO.

Mark SicklesCorp.& Govt. Relations, Dredging Div.

WEEKS MARINE, INC.

Industry Associations

Mr. R.A. KolmanSecretary General

Intl. Assn. of Dredging Companies (IADC)

Tom CappellinoExecutive Director

WESTERN DREDGING ASSN. (WEDA)

Barry HollidayExecutive Director

Dredging Contractors of America (DCA)

Port Management

Thomas CostanzoWaterways Development

THE PORT AUTHORITY OF NY / NJ

Manufacturing, Engineering & Research

Alan AlcornVice President

MOFFATT & NICHOL ENGINEERS

Ray BergeronPresident

CABLE ARM CLAMSHELL

Peter A. BoweChairman & CEO

Ellicott Dredge Enterprises

Todd S. Bridges, Ph.D.Dir., Center for Contaminated SedimentsWATERWAYS EXPERIMENT STA., COE

Larry FleemanSales / Assistant General Manager

DREDGE CENTRAL, LLC

Gregory L. Hartman, P.E President

Hartman Associates LLC

Ronald “Greg” HolderPresident

DREDGE CONSTRUCTORS LLC

Arthur JaneckaDeputy District Engineer

GALVESTON DISTRICT, COE

Ram Mohan, P.E., PH.D.Principal

ANCHOR QEA

Robert E. RandallDirector, Center for Dredging Studies

TEXAS A&M UNIVERSITY

Bob WettaPresident

DSC Dredge LLC

F e a t u r e s Innovative Surveying Technique Locates Contaminated Sediments for Surgical Removal….....6

New Clamp-On Transit-Time Ultrasonic Flow Meter……………..............................................8

Javeler Marine in the Gulf of Mexico…………..........................................................................9

Jan De Nul launches Ultra - Low Emission Vessel : Diogo Cão…............................................10

TipperTM Technology Water and Pipeline Survey Applications in Marine and Ground

Subsurface Environments…..............................................................................................…….12

Cool Digs in Sunny California…….................................................................................……..19

Environmental Clamshell Features ( Cable Arm )……..................................................................23

48th DREDGING ENGINEERING SHORT COURSE…..........................................................24

DSC Dredge LLC - Stays Busy……...........................................................................................25

Valeport unveils versatile new probe for multiple applications…...............................................28

Valeport releases new portable tidal observation hub…...............................................................28

Dredge Yard ECO 200 Dredges AVAILABLE IN STOCK…...................................................29

Western Dredging Association’s 2018 Dredging Summit & Expo Meets in Norfolk, Virginia…..30

WEDA SUMMIT & EXPO 2019….............................................................................................39

Business Card Directory ................................. 36Classi f ied . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37

Adver t isers Index . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38

Mailing AddressPO Box 17479, Irvine, CA 92623-7479, USA; T: ( 714 ) 451 - 2228,

F: ( 657 ) 227 - 9383, [email protected], WorldDREDGING.com

European OfficeD. Mark Carter, Manager

South Place, Derby Road,Haslemere, Surrey GU27 1BP, England / U.K.

T/F: +44 ( 1428 ) 64-2208, [email protected]

World DREDGING Mining & Construction (US ISSN 1045-0343) is published monthly by Placer Management Corp., PO Box 17479, Irvine, CA 92623 - 7479 USA. ARTICLES: Send to editor. SUBSCRIPTION PRICES: 1 year = $100, 2 years = $180, 3 years = $270; Airmail Outside-USA 1 year = $200. SINGLE COPIES: Previous 12 issues - $10/copy, Directory - $20 ( shipping extra ) ; Prior issues - contact us for availability & price. ADVERTISING INSTRUCTIONS: Send insertion orders and ad copy to Sales. CHANGE OF ADDRESS: Send new address with old address to Circulation, World DREDGING, PO Box 17479, Irvine, CA 92623 - 7479, USA.

COVER: COOL DIGS IN SUNNY CALIFORNIA - Pacific Dredge Company maintenance

dredging homeowners’ docks as part of the Linda Isle Homeowners Dredge Project utilizing

a Liebherr 944CHD with a 3 yd3 Cable Arm Bucket ( Newport Beach, California ).

( See story on pg. 19 )

D e p a r t m e n t s

BOARD OF INDUSTRY ADVISORS...The individual names and affiliations of the Board of Industry Advisors are not responsible for the content of World DREDGING Mining & Construction magazine. The purpose of the Board is to provide current communication with the dredging industry.

International CorrespondentKurt A. Richardson

Foreign Technical EditorDieter Giersch - [email protected]

Gluckstadt, Germany

Contributing EditorBaer Charlton - [email protected]

Portland, Oregon, USA

Editor / PublisherSteve [email protected]


John F. Sawyer ( Arc Surveying & Mapping, Inc., Jacksonville, FL, USA )Shailesh K. Patel ( Dredging & Marine Consultants, Port Orange, FL, USA )

Peteralv Brabers ( DEMCO, Wintershoven, Belgium )

Background/ObjectivesFlorida’s Indian River Lagoon (IRL), is considered to be North America’s most biologically diverse estuary and is choking in muck. The lagoon stretches 165 miles along the length of Florida’s East Coast. There are no inlets or exchanges with the Atlantic Ocean for 90 miles and only minimal tidal fluctuations; therefore, no sediment flushing of the Indian River Lagoon occurs. Dolphins and Manatees skim the surface; sea-grasses cradle young marine life; migrating birds soar over the olive brown waters that threaten 2,100 species of plants, more than 2,200 species of animals, 700 fish species and 310 bird species. It has been said that the contaminated sediment problem in the IRL is so critical that it has reached a tipping point and may be beyond recovery soon. It is well known that the muck must be removed to bring the lagoon back to a natural condition and many Florida counties have obtained funding to so. What has not been known is the exact location, thickness or the quantity of muck to be removed. Antiquated methods of locating muck deposits such as manual probing with pipes, dual frequency sonar and sub-bottom profiling have provided best-guess results and lead to assumptions that muck blanketed much of the IRL bottom when in fact it is isolated in pockets throughout the waterway as proven during an innovative 2017 “Muck Test Survey” by Arc Surveying & Mapping (Arc) of Melbourne, Florida ( FL ).

Approach/ActivitiesDuring November 2017 Arc performed a “Muck Test Survey” in the Indian River Lagoon at Rockledge Florida. The objective of the survey was to locate the aerial position; the top and bottom (interface of muck with the natural uncontaminated bottom) using advanced geophysical techniques. The Rockledge site was chosen since the Florida Institute of Technology ( FIT ) had previously surveyed the area attempting to locate and quantify muck. FIT experts, understanding that sonar methods were not reliable due to the high organic content of the muck, developed a method of manual probing, pushing a capped 1 ½” PVC pipe into the subsurface, instructing FIT student volunteers to record the depth at which they felt resistance after penetrating the lagoon bottom surface, hopefully identifying the muck thickness.

As archaic as that sounds, later comparisons to Arc’s advanced geophysical methods of identifying muck locations and thicknesses proved that FIT’s years of probing experience was generally valid but limited to the location of the probe. The Arc 2017 “Muck Test Survey” at Rockledge involved the use of an advanced electrical resistivity system developed in

Innovative Surveying Technique Locates Contaminated Sediments

for Surgical Removal


Belgium and previously used by the US Army Corps of Engineers on rock dredging projects at ports in New York, Delaware, Jacksonville and Miami Florida.

Results/Lessons Learned The resistivity survey generated 100% coverage of the test area waterway bottom surface producing a four dimensional (4D) model of the subsurface (X, Y, Z and Resistivity value) of each material change, isolating the area of contaminated sediment to 1/3rd of the waterway. The exact position and thickness of contaminated muck was obtained, including the interface with native bottom. An independent geotechnical firm obtained Vibracore samples confirming the results of the resistivity survey. Samples were tested and chemical analysis performed. This advanced method of survey substantially reduces dredging costs by identifying areas for surgical excavation of only contaminated sediments, reducing unnecessary excavation and the amount of uncontaminated sediments placed in treatment areas.

Contact :John F. Sawyer, Vice-president, Arc Surveying & Mapping, Inc

Website: www.arcsurveyors.com, Office: 904 384 8377, Mobile: 904 237 5949,

Email: [email protected] ( See ad on pg. 2 ) m


Greyline introduces their next generation transit-time meter

The new Greyline TTFM 6.1 Transit-Time Flow Meter - with powerful new digital signal processing and advanced algorithms - provides easy and accurate flow measurement of clean and relatively clean fluids (water, oil, chemicals).

Benefits include :

Clamp-on technology does not require pipe penetration, cutting, or welding, greatly reducing costs ;

Fast, simple installation - typically less than 30 minutes ;

Improved performance in a wider range of applications, operating conditions and pipe materials ;

High accuracy (±1% of reading) with 25:1 turn-down ;

Built-in 5-key calibrator, intuitive menu and large back-lit LCD display make the TTFM 6.1 the most operator-friendly ultrasonic flow-meter on the market.

At a glance, view flow rate, flow direction, totalizer, relay status, and important diagnostic information on display ;

Isolated 4-20mA output for flow rate, two relays for pulse output or alarms and 26 million point data logger for greater flexibility of data monitoring and control. Monitors flow rate, volume total, run hours, and diagnostic information through only two wires with the optional MODBUS RTU serial communication option.

Additional meter optimization is available by providing Greyline with the pipe material, pipe size, and pipe schedule at the time of order.

Contact : Marlene Quenneville, Marketing- Marketing Manager

GREYLINE INSTRUMENTS16456 Sixsmith Drive,

Long Sault, ON K0C 1P0 CanadaT: 613 938 8956, 613 938 4857, E: [email protected] m

New Clamp-On Transit-Time Ultrasonic Flow Meter


Javeler Marine Services recently completed a project in the Gulf of Mexico under extraordinary circumstances. A platform which was protected by a stone levee, became completely “silted in.” This prevented barges from fully accessing the dock face when attempting oil transfers. The problem was intensified by two major factors; the first was the existence of several active pipelines in the dredge area and the second was that the only disposal location for the discharge was home to several species of water fowl (endangered Plover birds and the Gull-Billed Tern) and included valuable marsh vegetation. Several attempts were made using mechanical dredging cutter head systems and similar means but no successful solution was found. The end client heard about Javeler Marine Services with their non-invasive dredging tools. JMS assisted in laying out the project, designing the levee system to equally distribute the spoils in the disposal areas, creating a procedure for the environmental concerns, and identifying the stone levee’s need for restoration. Work soon began on this long awaited project. First, containment berms and a discharge pit were created where water depth ranged from 1-5 feet deep. Dredging then began with a total of approximately 90,800 cubic yards eventually being moved. The discharge material was then used for restoration of the marsh. Finally, the stone wall was restored to the original elevation and location. The job was completed and all parties were thoroughly satisfied. The teams worked so well together that Javeler Marine Services was asked to assist in the planning of the decommissioning project for the location scheduled for 2019. l

Javeler Marinein the Gulf of Mexico


Jan De Nul launches Ultra - Low Emission Vessel : Diogo Cão

The 3,500 m³ Trailing Suction Hopper Dredge Diogo Cão was recently launched at the Keppel Nantong shipyard in China, a sub-sidiary of Keppel Offshore & Marine. This “green” vessel is the second of three 3,500 m³ hoppers to be launched, equipped with an exhaust gas treatment system filtering out and virtually eliminating many pollutants from the exhaust gases. Jan De Nul Group ordered six such ultra-low emission Trailing Suction Hopper dredges called Ultra-Low Emission Vessels, five of which are being built at Keppel: three small 3,500 m³, two medium-sized 6,000 m³ and a larger vessel at 18,000 m³. All six vessels are diesel-electrical powered, with engines allowing optimal use of generated power but with low fuel consumption and emissions. In addition, the vessels are equipped with a two stage highly efficient exhaust gas filter system, resulting in emissions complying with the European Stage V regulations for inland waterway vessels. “We are delighted to be leading the way in compliance with the most stringent global emission limits with the world’s first EU Stage V dredges, which will be highly fuel-efficient, reliable, versatile and productive,” says Robby De Backer, New Building Director at Jan De Nul Group. “Their use will enable dredging projects to be completed with the lowest levels of emissions to date.”“As the new dredges will frequently operate in estuaries, rivers and coastal areas near urban areas, we decided to limit the NOx emissions to a level 30% below the actual IMO Tier III requirements, and to reduce other potentially harmful contaminants that are currently not regulated by IMO,” says De Backer. In a world of climate change and overall environmental consciousness, Jan De Nul Group has chosen to design and build its latest generation of dredging vessels, running on diesel and equipped with exhaust gas after treatment system. Ambient air in urban environments often contains all kinds of particles and other toxic substances. Jan De Nul aims at minimizing its contribution to manmade dangerous pollution sources in those urban areas. Burning cleaner fuels helps to reduce some individual pollutant levels, whereas Jan De Nul has taken the initiative to actually remove or eliminate active pollutants from exhaust gases. By doing this, Jan De Nul takes a different approach than others who have chosen clean burning fuel vessels. “Our main target from the start was: how can we lower the air pollution caused by dredging vessels?” says Michel Deruyck, Fuel Coordinator at Jan De Nul Group. “We focus on the impact that maritime transport and port development has on public health and ambient air quality. During the new dredge design phase, we looked at different options and technologies, with the goal of maximizing pollution reduction or elimination, and preparing for the stricter European land and inland waterways emission regulations Stage V, due for implementation in 2020.”

Stage V regulation and catalytic filtering technique The maritime transport regulator International Maritime Organization (IMO), states that clean burning fuel vessels have to comply with the IMO Tier III regulation. The European regulations on land, Stage V, are far stricter. Mainly because for the first time, particles emitted down to 23 nanometers are taken into account. The new vessels will operate with normally available ultra-low sulphur gasoil, with the exhaust gas treated in two stages by means of a Selective Catalytic Reduction (SCR) system, and a Diesel Particulate Filter (DPF). The SCR system lowers NOx to achieve EU Stage V levels for inland waterways. The second stage DPF removes particulates from the exhaust, also down to the future EU Stage V levels. Eliminating black carbon emission with the DPF significantly reduces the climate impact of these vessels.Jan De Nul Group chose technology based on the Swiss example of filtering exhaust gases in the tunneling industry. “Since the 1990s, the tunneling industry has used exhaust gas filtration on vehicle and heavy duty machinery emissions to provide clean, breathable air for workers tunneling under the Alps,” adds Michel Deruyck. “Today we are applying the same filtering techniques on our new vessels, and by accounting for particle numbers we obtain a 99% filtration efficiency and detoxification by catalysis.”

The Diogo Cão’s design The design of the Diogo Cão is based on the successfully operating 3,400 m3 TH dredge Alvar Nuñez Cabeça de Vaca and Sebastiano Caboto, built in 2011. The vessels combine a shallow draught with high maneuverability, making them very suitable for working in confined areas. The Diogo Cão is in diesel-electric execution: all major drives ( thrusters, dredge pump, jet pumps... ) are electrically driven, and controlled by means of frequency converters. In this way each system can operate at its optimal speed and power. Power is generated by means of three diesel generator sets. A control system automatically starts and stops the sets depending on the power requirement. Asymmetric load sharing results in optimal load distribution over the diesel generator sets. All these measures result in a low fuel oil consumption, which is the best in its class.

Hopper capacity 3,500 m³Deadweight 5,500 tLength o.a. 89.3 mBreadth 22.0 mMax. dredging depth 27.6 mSuction pipe diameter 800 mmSpeed 11.3 knPump power (trailing) 1,250 kW

Pump power (discharging) 3,000 kWPropulsion power 2 x 1,100 kWTotal installed diesel power 5,510 kWAccommodation 16 persons

Keel laying of the first 6,000 m³ Trailing Suction Hopper dredgeThe Diogo Cão is launched, the keel laying of the first 6,000 m³ vessel is planned to take place on 19 July at the

World DREDGING Mining & Construct ion, Vol. 51, 11/12 - 8/18 WorldDREDGING.com 1 1

Keppel Singmarine in Singapore. Jan De Nul Group recently decided to name both 6,000 m³ Trailing Suction Hopper ( TH ) dredges after two decommissioned vessels of the Groups fleet: Sanderus and Ortelius.

About Jan De Nul GroupInnovation, expertise and sustainability. This is the strength of Jan De Nul Group. Thanks to the passion and commitment of its employees and the hypermodern fleet, the Group is market leader in dredging and maritime works, as well as in specialized services for the offshore market of oil, gas and renewable energy. The Group is also a leading company in civil engineering and environmental activities. The professional and innovative solutions are trusted across the industry. Whether it concerns the design and construction of locks, the design and installation of wind farms at sea or the redevelopment of polluted industrial sites, together with its clients Jan De Nul Group contributes to further economic development in a responsible way. www.jandenul.com m


TipperTM Technology Water and Pipeline Survey Applications inMarine and Ground Subsurface Environments

Dr. Michael C. Mound, GAMMAG/TDD International

TIPPERTM AND SUBMERSIBLE DETECTION

A: INTRODUCTIONThe value of TIPPERTM (the IP and exclusive property of TDD International) has been used to pinpoint ship movements and conductive anomalies related to ocean mining and other submerged stationary, buried, or migrating targets at depths both on the surface and positioned at both shallow and abyssal depths. Items and objects have been detected where conventional sensor systems have been unable to fix positions of such objectives or adjust dynamically to shifts and omnidirectional coordinates. The name “TIPPERTM” is derived from “tipper” or “Tipper” which refers to the response by our system to the electromagnetic (EM) resonance based upon differences in conductivity and/or resistivity of the target object or deposit. This response is shown as a sideways, or “tipped” intensity, hence the name. Magnetometry is the technique of measuring Earth’s magnetic field over a target area for detecting natural or man-made objects and features concealed in the subsurface. Electrometry is the technique of measuring electrical properties of the subsurface and relating these to either natural or man-made features concealed in the subsurface. In this technique an instrument injects an electrical current via a pair of electrodes

into the ground while a second pair of electrodes measures the corresponding voltage drop at various positions within a survey grid or along a transect at the ground surface. TDD International employs our UMR (Ultra Mini-Res) system shown below with TIPPERTM for quick water detection and quality (Figure 1).

Figure 1. ULTRA MINI-RESTM SYSTEM FOR QUICK GROUND TESTING

GAMMAG/TDD has thus far conducted surveys to accurately and precisely locate water, both potable, as well as non-potable, but not otherwise polluted waters, and that containing undesirable dissolved solids, salts, and toxic substances in parched and arid areas in many continents and terrains.

Geothermal sources for production of electrical energy, heat for urban and rural development as well as a sustainable, non-emis-sion producing configuration, and constant source of energy replenished naturally by the earth itself. We have also created a closed loop system to produce hot water and steam without the need to utilize meteoric sources Gold, silver, platinum, palladium, both noble and precious group minerals (PGM), in associated alluvial (soil-bearing) , placer, and deep lode (in bedrock) deposits. Efficiency in drilling for such deposits is immediately obtained before expensive equipment need be deployed. Base metals mining locations for both surface and underground deposits of iron ore, copper ore, rare earth min-erals, energy minerals (uranium, thorium, etc.).

Oil and gas deposits onshore and offshoreIndustrial minerals (dolomite, limestone, aggregate, clay minerals and clays, bauxite, phosphate rock, coal, various bitumens, etc.Detection and identification of core samples with non-destructive techniques…no sampling necessary for immediate definition of mineral content. Application with NASA for exploration of water, minerals, soil content for both terrestrial and planned exploration applications efforts. TDD has been actively collaborating with governmental and private industry for applications in Coastal protection to detect attempts at contraband and tunneling along sovereign coastlines. Navigation and protection, including communication between naval vessels both friendly and threatening submersibles. Detection of unexploded munitions in the seabed coastal areas, including mines and dumped missiles/bombs, other devices for removal prior to dredging for new land habitation. Detection and location of downed aircraft, capsized oil rig debris, etc. The TIPPERTM system consists of two separate subsystems, a ROVER and a BASE/REFERENCE system. The ROVER system acquires “runs” of data scans at a scan rate of 10.000 KiloHertz. Each ROVER station consists of 15 such stored “runs.” Each run will acquire, parse and store that run’s data to (solid state} memory. Less than 1 minute is required to acquire all runs; then the ROVER is quiescent for a short period as GPS data are acquired and written to a solid-state disk (SSD). This period is used for deployment of the TIPPER system to the next station’s position (Figure 2, Figure 3, 3(a)).

Figure 2. ROVER COIL (GROUND VERSION)


Left - Figure 3. ROVER COIL AND DGPS WITH MARINE COIL EQUIPMENT (WATERPROOFED COMPONENTS)

Above - Figure 3(a). ROVER COMPONENT ON TRIPOD

Left - Figure 4. BASE AND REFERENCE STATION TIPPERTM system

The Base TIPPERTM system component (Figure 4), 4 (a)) is similar but remains in a fixed position. The BASE system consists of a dedicated computer system with accompanying SSD communicating with a GPS receiver.

Right - Figure 4(a). COILS USED FOR BASE AND REFERENCE STATION CONSTRUCTION


THE PROBLEM AND ITS SOLUTIONTDD, is an entity that embodies the collaboration of a group of pedigreed and dedicated scientists and business members forming the bases of contributions of the efforts of our combined skills and experience. TIDD is comprised of a team of practical and theoretical scientists that is accustomed to resolving issues that rely upon each other’s multifaceted backgrounds. We are, ourselves, all products of innovations and unconvent ional des ign and implementation of solutions that are proven using the vehicles of pilots, beta-testing, rollouts, and proofs of concepts with the eventual emergence of commercially and industrially hardened final versions of our systems. Our backgrounds include years with large multinational companies, small start-up ventures, universities, governmental, and both for-profit and non-profit organizations. We believe that the convergence and congruence of such cooperation/collaboration and innovation have produced a peer-tempered approach to reaching the status of self-examination and proofs that can provide sustainability and produces a construction of durable reproduction in all subsequent iterations. TIPPERTM has now changed dramatically thanks to the current work of the last few years of TIPPERTM innovations provided and pioneered by our group. This brought to us an impressive innovation and roving Hz coil methodology, with the clever pendulum mount (Figure 3(a)), rapid deployment and data acquisition; and eventually, an enormous quantity of experience and experimental data. The major improvement in TIPPERTM surveying has arisen from our newly refined system and extensive experience in recording, observing, and interpreting TIPPERTM data in geological and marine environments. New work has proven TIPPERTM to now provide a wealth of useful information about the orientation of the target anomaly and the nature and aspects of its dimensionality. Some of these modalities can convey this. The inherent “skin effect” in the conductive medium provides insight about relative depth and spatial orientations, as well as values of related conductivity. These can now be shown by our newest techniques to define high resolution and actual depth determination of the buried or debris object(s). By this and other means inherent in our IP, it is now possible to eliminate the cross- power spectrum stacking between survey data and reference site data, so that the desired signals are precisely correlated, and the respective useless noises are removed, using TDD’s current methodology. To our knowledge, no other geophysical method now employed can provide these signals in such a manner as to remove noise from the faint signals that define the shape, dimension, and extent of a subsurface target in a simple, pure representation of the actual target, virtually regardless of depth and overburden (cover).

PEDIGREE OF TIPPERTM: HOW THE SECURITY AND SAFETY ISSUES CAN BE RESOLVED WITH TIPPEROur early investigations included confidential work in Vietnam, Angola, and aspects of the agencies involved, much of our work involved deep sea instrumentation and seismic detection of distant explosives and associated blasts using gravity meters. We enjoy

a tremendous mutual respect and association for the technical competence with recognized distinguished scientists. TIPPERTM now provides the ability for EM navigation, enemy detection and communication that titanium hulled subs enjoy over regular ferrous/nickel/chrome hulled subs (Figure 5).

Figure 5. TIPPER DEPLOYMENT ON BOARD VESSEL

BACKGROUNDThe main mechanism for TIPPERTM’s depth selectivity is a phenomenon referred to as “skin depth effect.” Skin Effect means that higher electromagnetic (EM) frequencies can only penetrate the earth to a shallow depth. Lower EM frequencies can penetrate to much greater depths. Very

low EM frequencies have been used in MT (Magneto-Telluric) stations to less than 0.001 Hertz to “see” through the earth’s crust at over 100 Kilo-Feet; depth. VLF, AFMAG and Audio MT (and TIPPERTM) have used audio range frequencies (and higher) to detect and map the near surface for mineral deposits. Part of the newest innovations of TIPPERTM now permit the use of high frequencies


( Continued )

The name “TIPPERTM” is derived from “tipper” or “Tipper” which refers to the response by our system to the electromagnetic (EM) resonance based upon differences in conductivity and/or resistivity of the target object or deposit. This response is shown as a sideways, or “tipped” intensity, hence the name. Magnetometry is the technique of measuring Earth’s magnetic field over a target area for detecting natural or man-made objects and features concealed in the subsurface.


for comprehensive and total detection simultaneously. Magneto-Tellurics (MT), in this instance, is possible to locate and characterize all five important fluctuating magnetic and electric field components at a position on the surface of the earth (called in our case, as an MT station) are measured. TIPPERTM, measures the three orthogonal fluctuating magnetic field components and is, therefore, a subset of an MT station.

DIFFERENTIATION OF TIPPERTM

Physicists, for centuries, have described the general concepts associated with 2-D models. Such a subsurface could be described as a function of just two position variables ( X and Y). A typical 2-D model is a simple conductive and vertical subsurface fault. TIPPERTM (or gravity, for that matter) response to a 2-D subsurface is complex. However, such response can be “rotated to principal axes” for direct detection depiction. The most complicated subsurface distribution of conductivity is 3-D (three dimensional). In absolute fact, the earth is always 3-D to some extent. TIPPERTM provides the numerical estimate of the level of 3-dimensionality of the subsurface. This numerical estimate of 3-dimensionality of the subsurface is called the “elliptlclty” of the TIPPERTM. The value of “ellipticity” ranges from 0 to 1. Ellipticity is the ratio formed by the minor axis magnitude divided by the major axis magnitude (at any specific frequency).

DIMENSIONALITY AND DETECTIONHow does “dimensionality” relate to exploring and detection at ocean depths for precious metals? Or, to conductive metals or sunken vessels? Gold and silver in epithermal deposits nearly always occur in zones of extreme dimensionality. Typically, the epithermal gold-bearing fluids that rise upward through fault/fissure intersections that represent extremely complicated and chaotic geological structure which means that the TIPPERTM will exhibit extreme values of three dimensionality (and associated high values of ellipticity). These concepts of dimensionality (and ellipticity) have a direct relationship to the mineralization or polymetallic nodules on the ocean bottom, or, finally, to conductive prolate or similar spheroidal geometries represented by submersed and moving, shifting, or settled vessels (ships, aircraft, buried cables, pipelines, bottom metallic debris, etc.).

COMPARISON OF TIPPERTM WITH OTHER DETECTION SYSTEMSImportantly, there is no extant other geophysical tool capable of providing inexpensive estimates of geologic strike (the angle from the true north horizontal that defines the azimuth) from a single station. TIPPERTM provides accurate estimates of strike direction from each TIPPERTM station. Therefore, the strike direction is perpendicular to the azimuth of the TIPPERTM report. Thus, this simple response by TIPPERTM unerringly distinguishes between masses of different conductivity and resistivity that relate to the content of the anomalous mass. It is this information that translates into the resultant definition and location of structures as described above. TIPPERTM deals with parallel pipelines in the case of detection of components from the decommissioning of offshore drilling platforms. These could be arcuate rigid construction of two or more pipelines within and beneath the superstructure of a production rig platform. TIPPERTM manages this distinction if the individual pipes are separated by a reasonably short distance; if “nested.” TIPPERTM would interpret the pipe layouts as a single entity (Figure 6).

Figure 6. EXAMPLES OF PIPELINES, CABLES, ETC. DISPOSITIONS

CONCLUSIONTIPPERTM offers the hope and realistic aspects of a method which can provide a means of detection that minimizes false positives and almost never reports false negatives. Importantly, TIPPERTM excels at indicating where not to submerge search equipment where no anomaly is shown, thus reducing costs and enhancing the result of a well-defined target objective. To overcome the potential disturbance when surveying in the marine environment of the presence of varying ocean currents, we have designed a special trimaran tow craft to dampen this effect for the ROVER deployment. This will be incorporated in the new current system, now being produced and created to increase the accuracy of TIPPERTM detection in surveys. BASE and REFERENCE TIPPERTM

stations are not affected by ocean variations, as they are deployed onshore. Contact: [email protected]; [email protected] m


( Continued )


Huntington Harbor ProjectIn December of 2017 Pacific Dredge Company of San Diego, California (CA) was awarded the Portofino Homeowners Association Dredging Project in Hunting-ton Harbor, CA to perform navigational dredging and deepening of private boat docks. The project began May 15, 2018 and lasted through June 23, 2018 dredging 11,700 yd3 of silt, sand and clay using a Liebherr 944 CHD with a 3 yd3 Cable Arm Clamshell bucket assisted by two 300 yd3 dump scows. Working single shift, six days a week the seven person team assisted in loading each of two 300 yd3 dump scows and transporting the dredged material 22 nautical miles away to LA-3 Ocean Disposal. The project was privately funded by Portofino Homeowners Association.

Newport Beach ProjectPacific Dredge Company was awarded the Linda Isle Homowners Dredging Project in February 2018 in Newport Beach, CA by 23 individual homeowners. The project is ongoing as more homeowners sign up to perform maintenance dredging of their private docks. T h e d r e d g i n g w o r k i s b e i n g performed with a Liebherr 944 CHD, 3 yd3 Cable Arm Bucket, two 300 yd3 dump scows, 500 hp truckable workboat and 1,000 hp towing tug. The project involves dredging about 20,000 yd3 of mud, sand and silt which is being deposited at LA-3 about 12 miles away. The six person team is performing dredging on a single shift Monday through Friday.

Cool Digs in Sunny California

San Diego - based dredging & tug boat company

finds niche in maintenance dredging of

private boat docksPortofino Homeowners

Association Dredging Project in Huntington Harbor, CA

Portofino Homeowners Association Dredging Project in Huntington Harbor, CA using a Liebherr 944 CHD with a

3 yd3 Cabe Arm Clamshell bucket assisted by two 300 yd3 dump scows.


Above & Below : Linda Isle Homeowners Dredging Project in Newport Beach, CA utilizing a Liebherr 944 CHD, 3 yd3 Cable Arm Bucket, two 300 yd3 dump scows, 500 hp truckable workboat and 1,000 hp towing tug.


ABOUT US

Dredging PDC is built upon the understanding that dredging is an integral function of the marine construction process and demands the highest level of quality and attention to detail. Pacific Tugboat Service the parent company of PDC has been a well-known West Coast marine service provider for many years. Building on Pacific Tugboat Service’s experience of owning and operating a diverse fleet of ocean and harbor tugs, crew boats, landing craft, floating cranes, barges and general marine equipment, the company recognized a demand for a quality dredge in niche markets along the west coast of California. They began in 2014 by building a new electric cutter head suction ( CS ) dredge “Sandpiper.” The staff brings decades of professional experience in the hydraulic dredging, mechanical dredging, and pile driving markets in the most challenging environments. Pacific Dredge Company has committed to a multi-year new building program to bring up to date and modern equipment to the dredging market In 2017 PDC commissioned two new 300 yd3 “Pocket Scows” affectionately named “Thing 1” and “Thing 2.” Along with “Horton,” the 110’ x 33’ material handling barge equipped with a Liebherr 944 CHD material handler and custom Cable Arm

3 yd3 hydraulic bucket, they are proving to be a perfectly matched set for efficiently dredging marinas and private docks.

Pacific Dredge has completed large and small-scale dredge projects for government and private sector clients the West Coast, for customers such as the ACOE Los Angles District, City of Santa Barbara and US Navy as well as numerous private companies and individuals. Our services have

received high praise for our thoroughness, expertise and promptness.

Pacific Dredge Service provides a variety of dredging services within the marine industry including:Hydraulic Dredging - Mechanical Dredging - Environmental Remediation - Pile Driving

EMBRACING TECHNOLOGY As part of the business model Pacific Dredge Company understands that in order to remain at the top of today’s market, technology plays an important role. As such PDC made the decision to design and build market specific equipment vs. purchasing existing equipment. Building on lessons learned from previous projects PDC worked with Gloston Marine Group for scow design and Cable Arm Inc. for the bucket design. PDC selected a Liebherr 944 CHD Material re-handler to handle the 3 yd3 Cable Arm bucket. All of this sits atop the spud barge Horton. The Horton measures 110 x 33 and has two 24” square spuds 45 feet long. Each of Pacific Dredge Company’s dredges operates a dredge positioning and monitoring system. These systems allow PDC to dig to tighter tolerances and spend less time re-digging areas not to grade.

technology at workThanks to the new-building program PDC is now capitalizing on the benefits. An example is the new Cable Arm bucket which is able to more efficiently reach in and around docks than their previous clamshell bucket handled by a conventional crane. The survey clearly shows the ability of the Cable Arm bucket to dig under the docks vs. a standard clamshell bucket on a crane. The ability to dig directly under the docks means that less time is spent dragging material out from under docks and more time loading scows

equipment list Liebherr 944 CHD Dredge D/B Horton

300 yd3 Dump Scows Thing 1 & Thing 2 150 ton Capacity Crane Barge D/B Newport 18” Cutter Suction Dredge Sandpiper 6000’ 20’ SDR 17 dredge pipe


400’ 18” Float Line Idler and Power barge Support barge SB-7045’ 500 HP Dredge Tender Coleen 37’ 650 HP Dredge Tender Oliver T. 1500 HP Tug Contender Anchor handling Tender Kathleen

Equipment

Dredge SandpiperLength Overall 74’Length with Idler barge 194’Beam Molded 26’ Max Digging Depth 48’ Free Board Forward 40” Free Board Aft 35” Displacement 201 tons Main Pump Georgia Iron Works 18x18 46” ImpellerMain Pump Drive Siemens Type CG11 1750 HP Jet Pumps 2 x 150 HP Generator Engines 2 x Cat 3512 CHD Tier III Fuel Capacity 15000 US Gal in Idler Barge Idler Barge Length 110’Idler Barge width 32’ Generator (stby) Northern Lights 60 kwSewage System U.S. Coast Guard Approved Spud length 80’Max swing radius with Idler barge 134’ @ max digging depth Electronics Trimble SPS 461 GPS and heading Tilt Track for ladder depth Hypack Dredge Pack Software

Vessel Specifications Thing 1 & Thing 2 Length Overall 78’ Length @ Waterline 66’Beam Molded 24’Capacity 300 yd3 @ 77 PCF Year Built 2017 & 2018Displacement 85 Ton light

Vessel Specifications D/B Newport

Length Overall 80’Beam Molded 40’Depth @ Midship 7’Crane American 110 t. Capacity Spuds 24’ x 60’ Round Bucket 2 yd3 re-handle 2.5 yd3 Cable Arm Engine 300 Cummins QSB 6.7 Tier III

Pacific Dredge Company1444 Cesar E. Chavez ParkwaySan Diego, CA 92113 USA

619 533 7932 [email protected] m

Dredge Sandpiper

Scow Thing 1

D/B Newport


January 7 - 11, 2019 Sponsored by

CENTER FOR DREDGING STUDIES DEPARTMENT OF OCEAN ENGINEERING, COLLEGE OF

ENGINEERING, TEXAS A&M UNIVERSITY

Program

COURSE DESCRIPTION The dredging engineering short course is taught on the Texas A&M University campus in College Station, Texas and includes a mixture of lectures, laboratories, and a panel. The course is administered by the Center for Dredging Studies, Department of Ocean Engineering. Two textbooks and course notes on all lecture material are provided. A certificate and continuing education units (~3.0 CEUs) are earned.

MONDAY, JANUARY 7, 2019 ( 8:00 a.m. - 5:15 p.m. ) HISTORY OF DREDGING; DREDGING EQUIPMENT - FLUID MECHANICS; CENTRIFUGAL PUMPS; PUMP CAVITATION PUMP PERFORMANCE CHARACTERISTICS AND DREDGE INSTRUMENTATION - SEDIMENT TRANSPORT IN PIPES - GEOTECHNICAL MECHANICS; PHYSICAL AND ENGINEERING PROPERTIES; DIKE DESIGN - MECHANICAL DREDGES; SEDIMENT RESUSPENSION - ENVIRONMENTAL CLAMSHELL DREDGING TEXAS BBQ DINNER ( Monday Evening, 6:30 - 8:30 p.m. )Aubeny, Bergeron, Figlus, Hayes, Mohan, Perlin, Randall

TUESDAY, JANUARY 8, 2019 ( 8:00 a.m. - 5:15 p.m. ) BEACH NOURISHMENT & DUNES - BASIC DREDGE LAWS & DREDGE HYDRAULICS - SMALL HYDRAULIC DREDGES CUTTERS AND CUTTER SUCTION DREDGE OPERATION - HOPPER DREDGES AND DREDGE CONTROL SYSTEMS DREDGING BEST MANAGEMENT PRACTICES AND CLAIMS AVOIDANCE - DREDGING GROUP PROJECT EXERCISE; GEOTECHNICAL LAB Aubeny, Edge, Figlus, Henriksen, Mohan, Randall, Wetta

WEDNESDAY, JANUARY 9, 2019 ( 8:00 a.m. - 5:15 p.m. ) FATE OF DREDGED MATERIAL PLACED IN OPEN WATER - NUMERICAL MODELS FOR PREDICTING THE FATE OF DREDGED MATERIAL - DREDGING SAFETY CONSIDERATIONS - DATA NEEDS & TECHNICAL INPUTS FOR DREDGING - DREDGE MONITORING - ECOSYSTEM RESTORATION USING DREDGED MATERIAL - GEOTEXTILE CONTAINER SYSTEMS ADVANCES IN HYDROGRAPHIC SURVEYING - DREDGING GROUP PROJECT EXERCISE; GEOTECHNICAL LAB Allen, Aubeny, Davis, Edge, Gailani, Mohan, Ramsdell, Randall, Ransome, Trierweiler

THURSDAY, JAMUARY 10, 2019 ( 8:00 a.m. - 5:15 p.m. ) SUBAQUEOUS CAPPING & CONFINED DISPOSAL OF DREDGED MATERIAL - CONTAMINATED SEDIMENT MANAGEMENT CONSIDERATIONS - CANADIAN EXPERIENCES IN MANAGING CONTAMINATED SEDIMENTS - CONTRACT DOCUMENTS AND CONSTRUCTION MANAGEMENT CONSIDERATIONS - DREDGED MATERIAL TESTING MANUALS AND EVALUATION OF TESTING RESULTS - EPA AND THE ENVIRONMENTAL ASPECTS OF DREDGED MATERIAL DISPOSAL - ENVIRONMENTAL TOPICS - QUESTION AND ANSWER PANEL - DREDGING GROUP PROJECT EXERCISE; GEOTECHNICAL LAB BANQUET ( Thursday Evening, 6:30 - 8:30 p.m. ) Aubeny, Mohan, Palermo, Randall, Santiago, Suedel, Vogt

FRIDAY, JANUARY 11, 2019 ( 8:00 a.m. - 12:00 p.m. ) ENGINEERING WITH NATURE & BENEFICIAL USES OF DREDGED MATERIAL - CHEMICAL TREATMENT OF DREDGED SOLIDS - DEWATERING AND SEDIMENT SEPARATION - DREDGE PERMITTING AND PROJECT MANAGEMENT - ESTIMATING DREDGING COSTS CERTIFICATE PRESENTATION Hudson, Jamieson, Mohan, Randall, Suedel, Tichenor

Contact: R. Mohan or R. RandallT: 215-756-5030, 979-845-4568, 979-845-4586

E: [email protected]; or [email protected]://engineering.tamu.edu/ocean/research/center-for-dredging-studies m

48th DREDGING ENGINEERING SHORT COURSE


DSC Dredge LLC and Stichweh, LLC enters manufacturer’s agreementDSC Dredge LLC and Stichweh, LLC have entered into a manufacturer’s cooperation agreement to promote each other’s products. Stichweh, LLC is a joint venture company formed with Andrew Snoby and Richard Snoby and SMT-Stichweh Maschinen & Service GmbH (Germany). The main product of SMT-Stichweh, which is approaching its 100 year anniversary, is their washing and dewatering bucket wheels. In an effort to better serve customers’ production needs, DSC began including the option of dewatering wheels to be used in conjunction with DSC dredges. Bob Wetta, DSC Dredge President and CEO explains, “DSC Dredge and Stichweh are a natural fit, allowing us to better serve our aggregate customers. Several key reasons our companies align include: (1) Stichweh offers the largest bucket wheel program for the national and international market in the world; (2) The bucket wheel series can be perfectly tailored to the material conditions, furthering DSCs commitment to optimize dredge production; (3) Solutions are individually configured to customer needs and demands; and (4) Stichweh dewatering wheels are highly safe and functional, offering extremely long production life and safe operation with low specific energy requirements and truly low maintenance. ‘Safety and energy-efficient’ are important qualities to DSC Dredge and our customers.” DSCs salesmen Charlie Johnson, Charlie Sinunu and Lyn Condict also agree that the dewatering bucket wheels offer enhanced production capabilities. Aggregate producers continually keep an open mind for innovative solutions to maximize production and lower overall costs, while at the same time producing high quality aggregate products. The dewatering wheel allows for development of different grades of sand, depending on customer preferences, simply by adjusting a single setting on the bucket wheel controller. Andrew Snoby, Vice President of Stichweh, described the dewatering bucket wheel design saying, “In aggregate processing, washing, dewatering and classifying are among the most important stages. Coarse-grained material can be cleaned and dewatered in a bucket wheel with or without screens. For fine-grained material like sand or grain mixtures special washing, dewatering and recovery systems are necessary. Stichweh has washing and dewatering bucket wheels designed for these fine-grained materials applications.” Depending on the performance the bucket wheel rotates only with 0.5 – 2 rpm. Therefore the power consumption and the wear are extremely low, allowing the dewatering bucket wheels to work economically even under most difficult operating conditions. Five production series are available for the different material conditions and requirements from the simple gravel dewatering to the finest sand washing, finest sand classification,

DSC Dredge LLC - Stays BusyUS Department of Commerce appoints DSC Dredge LLC President and CEO Bob Wetta to Africa advisory CouncilSecretary Wilbur Ross, United States Department of Commerce recently appointed DSC Dredge LLC President and CEO Bob Wetta to serve on the President’s Advisory Council on Doing Business in Africa (PAC-DBIA). Bob Wetta named Charlie Sinunu, DSC’s Director of International Dredge Sales to his staff and they will help identify commercial opportunities for the United States in the region. Bob Wetta shared, “Being tapped to serve on the Council is an honor and a privilege. I am humbled by the appointment and am committed to providing valuable input and assisting with recommendations for commerce in Africa.” Sinunu said, “I have witnessed many changes since my first trip to Africa over 36 years ago. Having the support of the US Government is the key to success.” Link: https://newbusinessethiopia.com/u-s-commerce-delegation-to-visit-ethiopia-kenya-ghana-cote-divoire/


multiple wheel product classification and finest sand recovery. DSC Dredge works with customers to determine the best dewatering wheel for their proj-ect requirements and conditions. Bob Wetta added, “DSC Dredge focuses on engineering, automation and innovation to design and manufacture the best dredges built to meet and exceed our customers’ requirements. We go through great lengths to advise and consult with prospective purchasers to em-power them with the proper tools they need to make their buying decision.”

DSC Dredge LLC - Stays Busy | DSC Dredge LLC and Stichweh, LLC enters manufacturer’s agreement - Continued

DSC Dredge Innovations for the Dredge IndustryDSC Dredge LLC has built a reputation for designing and manufacturing quality dredges, engineered to meet specific production needs. Based on individual analysis, DSC provides information allowing customers to select the best dredge class and size for their needs. In approximately 50% of the cases, DSC custom-builds and tailors the selected dredge for production, efficiency and the material being dredged. DSC’s robust engineering, design and automation departments established DSC Dredge as a world leader in customized dredging solutions. DSC Dredge offers outstanding service after the sale, including 24/7 access, even during holidays and weekends and DSC Dredge has the best 12-month new equipment warranty. DSC’s design team listens to customers’ needs, examines the production goals and materials and continually imagines ways to improve dredge designs, production and efficiency. Further, DSC contributes to the dredging industry with its focus on education and training with Dreducation®. Ongoing customer support and operations training are keystones of the DSC Dredge customer relationship.

When customers explained to DSC the value that increased production would mean to their bottom lines, a vision was imagined. DSC leads the way in dredging innovation and strives to be on the cutting edge of useful improvements that change the way dredging is performed. Through the years, dredges change – DSC has helped make dredges and the dredging industry more automated, more efficient and adapted these changes to work in tandem with other new technology. In response to this particular request for increased production, DSC Dredge developed spectacular dredge industry innovations. This new dredge design includes two provisional patents: (1) Walking carriages and (2) wide format swinging ladder. DSC engineers imagined a dredge that continually moves forward, without cables. This model is the first of a new design concept. This concept allows for continuous, uninterrupted production representing time savings, cost savings and safety advantages since the dredge moves without cables. This dredge recruits advantages from the DSC Shark Class Dredge and Barracuda Class Dredge fea tures . DSC Automat ion Engineer, Nailiby Rangel submitted the name SHARKUDA™ and earned the award package.

Above - The newest DSC Dredge LLC dredge design: SHARKUDA™

Right - DSC Dredge LLC – Fleet of seven dredge classes

SHARKUDA™ QUICK FACTS:Standard FeaturesPower - Caterpillar diesel power or AC electric power.Pump Technology - Hull-mounted heavy-duty dredge pump.Operating System - PLC operating system.Base Model - Power up/down spud systems with API-rated winch drums for proper cable storage. Custom options and discharge sizes available upon request*. (*Customizations may include custom dredging depths, GPS dredging systems and production instrumentation. Custom features, sizes and designs available.)Standard SpecificationsTransportable multi trucksDredging Depths 43 ft (13.1 m)Discharge Sizes 10–18 in (250–450 mm)Power Source 500–1,200 hp (373–895 kW)

Cutter Power 60–200 hp (45–149 kW)Spud Lift Operation Power up/down planetary winchSwing Operation Planetary winch


Nugent Sand Company purchase Marlin Class electric dredge from DSC Dredge, LLCAn agreement for a new Marlin Class electric dredge purchase between Nugent Sand Company of Louisville, Kentucky (KY) and DSC Dredge, LLC was confirmed following the NSSGA 2018 Annual Convention and AGG1 Expo, held in Houston, Texas ( TX ) Tom Nugent, President of Nugent Sand Company, who also serves on the NSSGA Board of Directors, explained,

“NSSGA provides an excellent setting for aggregate producers and suppliers to engage and generate solutions for their requirements. DSC Dredge listened to our needs, evaluated our production specifications and helped us make the right choice for Nugent Sand Company.” DSC Dredge team members Lyn Condict, Bill Wetta and Charlie Johnson participated in and exhibited at the recent NSSGA expo and convention. “The NSSGA environment is conducive to networking, exchanging of ideas, thus creating opportunities for all who attend and actively contribute,” said Lyn Condict. He continued, “We are eager to deliver this new DSC Marlin Class electric dredge in early 2019 and help Nugent Sand Company accomplish their specific production goals.” Nugent Sand Company dates back to 1896 when the Nugent family began mining sand. Today, Nugent Sand Company produces sand and gravel for commercial, residential and infrastructure projects. Headquartered in Louis-ville, KY, Nugent Sand Company has seven locations throughout Kentucky and Indiana with the ability to distribute products by truck, rail, or barge. Nugent Sand serves customers with ASTM- and DOT-approved materials in Kentucky, Indiana, Ohio, West Virginia, and Pennsylvania. D S C D r e d g e , L L C w i l l p r o d u c e a f u l l y electric powered cutter head suction dredge that will mine to a depth of 80-feet, with estimated production of 700 tons/hour. This new Marlin Class dredge will be delivered to a mine site which has been operated by Nugent Sand Company for over 30 years. Other areas of the property were previously dredged, but this DSC Marlin dredge will operate in a pit currently being dry-mined down to the water table. The dredge will feed a dewatering wheel before material is conveyed to the processing plant. A World Leader in Customized Dredging Solutions, DSC Dredge, LLC advances engineering, automation and manufacturing of high quality dredges. The company operates from three major manufacturing facilities located in Reserve, Louisiana ( LA ), Poplarville, Mississippi ( MS ), and Greenbush, Michigan ( MI ).

For more information visit www.dscdredge.com and follow on Social Media :

Facebook - https://www.facebook.com/dscdredgellc/ LinkedIn - https://www.linkedin.com/company/dredging-supply-co.-inc.

Twitter - https://twitter.com/dscdredge Instagram - https://www.instagram.com/dscdredge/

YouTube - https://www.youtube.com/user/dscdredge. m


Valeport unveils versatile new probe for multiple applicationsA unique new probe that combines the power of the SWiFT SVP and a turbidity sensor has been launched by Valeport, a leading British oceanographic and hydrographic instrument specialist. The new SWiFTplus uses Valeport’s high accuracy sensor technology which incorporates turbidity observations with sound speed, temperature and pressure sensor technology to also provide computed conductivity, salinity and density. This is coupled with the convenience of Blue-tooth connectivity and a rechargeable battery. The hand-held profiler, constructed from Titanium for unrivalled durability, has been designed from the outset with the intention of a seamless work-flow and has an integral GPS to geo-locate every profile. SWiFTplus is intended for coastal, harbor and inland environmental and hydrographic survey use and offers high quality profiles in a compact, robust and portable package. Valeport’s new turbidity sensor addition is effectively two sensors in one. The first is a “classic” turbidity sensor (nephelometry using a 90˚ beam angle) for low turbidity levels (0–2000 NTU) and the second uses an OBS optical backscatter arrangement (~120˚ beam angle for optical backscatter) at high turbidity levels (>20,000 NTU). Intelligent sampling eliminates the need to gain switch at higher turbidity levels. Using a simple ‘twist and go’ switch on the unit, data can be easily and quickly downloaded, reviewed wirelessly via Bluetooth, using the new Valeport Connect app, allowing data to be instantly shared in industry standard formats through email and cloud services. Valeport’s new Connect software is also available on PC and can be used with a USB cable for instrument setup, data extraction, display and translation to common-format data strings and additional tools. Designed specifically for the operation of SWiFTplus and new tomarket Bluetooth enabled products, the new software simplifies and streamlines operation and data download tasks. Valeport Connect offers download capability with data translation and, once downloaded, allows both current and historic data to be visualized. Multiple profiles can be compared in graph view, while graphs can be further shared via email or cloud services. Kevin Edwards, Valeport Head of Sales, commented, “Following a very positive reaction to SWiFTplus at this year’s Oceanology International we’re excited to be bringing this enhanced and flexible probe to the hydrographic survey sector. Combining the power of our market leading SWiFT SVP with highly accurate turbidity observations offers a probe with a string of benefits suited to multiple applications.”

www.valeport.co.uk m

Valeport releases new portable tidal observation hubA new portable survey solution for monitoring tide, met and other sensors has been launched by leading British oceanographic and hydrographic instrument specialist, Valeport. The new TideStation (Portable) is a self-contained tidal observation hub which optimises performance of instrumentation. TideStation (Portable) has Valeport’s tide gauge system TideMaster at its core. Housed in a large rugged ABS case, the compact and robust TideStation (Portable) offers a choice of either UHF or GPRS telemetry with connection to pressure or radar sensors along with interface to other meteorological systems. T h e s i n g l e u n i t i n c l u d e s a l l i n f r a -s t r u c t u r e r e q u i r e d t o m a i n t a i n p o w e r to the tide and meteorological equipment and communicat ions system contained within. Accessing data from the water level monitoring e q u i p m e n t w i t h i n t h e T i d e S t a t i o n (Portable) is easy, all data can be recorded l o c a l l y a n d b r o a d c a s t t o a c e n t r a l command and control point as required. If using GPRS telemetry, data can be viewed and


managed on a Valeport headed webpage using the Port-Log from Oceanwise software supplied, which is subscription free for 12 months, with the option to subscribe further directly with Oceanwise thereafter. The corrosion proof, weather-proof, crush-proof and dust-proof TideStation (Portable) weights under 25 kg and features a retractable extension handle and wheels for easy transport, the observation hub is suited to a broad range of sectors including port and harbour operations, surveying, dredging and many other applications. TideStation (Portable) is an evolution of Valeport’s original TideStation unit and a natural extension to Valeport’s tide gauge instrument portfolio, Kevin Edwards, Head of Sales commented: “Accurate data is at the heart of all successful monitoring, our new TideStation (Portable) safeguards precise reliable instrumentation within a durable housing that helps prolong performance. Simple and easy to use, this turnkey solution is excellent for use in remote or temporary locations and ensures suveyors obtain the highest quality data easily and quickly.” Valeport designs and manufactures instrumentation for the oceanographic, hydrographic and hydrometric communities with a worldwide customer base that includes: environmental, defence, oil and gas, renewable energy, construction, dredging and civil engineering sectors. Valeport has supplied to the subsea sector since it was established in 1969. Now an independent, family owned business, Valeport employs more than 80 people from their base in Devon and works with a global network of agents to ensure a responsive and efficient worldwide service. www.valeport.co.uk m

Dredge Yard ECO 200 Dredges AVAILABLE IN STOCK

Dredge Yard, in continuation of its program for building medium size and small dredges in stock, is building more ECO 200 dredges in 2018. The new ECO 200 dredges are optimized with improvements to increase dredge performance and operations, meeting the demand of the market. The dredge can be equipped with a cutter head, auger head or plain suction head. These diverse options make the ECO 200 a very versatile dredge for many different dredge applications. Material is pumped by an underwater dredge pump, which is driven by a hydraulic motor and mounted on a rigid bearing assembly and shaft. This will allow the pump to have a higher pumping flow and a mixture of a higher density, resulting in more production than a dredge pump mounted in the pontoons. The control cabin is equipped with all necessaries like air-conditioning system or heater, noise reduction all around, ventilation on top, screen wipers and an adjustable ergonomic chair. All ECO 200 dredges are self-propelled with two hydraulic thrusters of a European brand. This will help move the dredge around without any involvement of a tug boat. To support the dredge in mobilization, tiltable spuds are provided that can be manually tilted and secured to the deck. Moreover, the new ECO 200 dredge accommodates more fuel tank capacity to reduce refueling intervals for continuous operations. We have now one ECO 200 Auger Dredge and one ECO 200 Cutter Suction Dredge available to deliver immediately.

ECO 200 Specifications

ECO 200 Auger Length overall incl. ladder 15.5 mLength over pontoons 11.5 mBreadth 4 mHeight of pontoon 1.25 mDesign draught 0.66 mMax. dredging depth (45°) 6 mSuction pipe diameter 200 mmDischarge pipe diameter 200 mmTotal installed power 224 kW

ECO 200 CutterLength overall incl. ladder 16.4 mLength over pontoons 11.5 mBreadth 4 mHeight of pontoon 1.25 mDesign draught 0.72 mMax. dredging depth (45°) 6 mSuction pipe diameter 200 mmDischarge pipe diameter 200 mmTotal installed power 224 kW

https://dredgeyard.com m


Western Dredging Association’s2018 Dredging Summit & Expo

Meets in Norfolk, VirginiaJune 25 - 28, 2018

WEDA President Marcel Hermanswelcomes attendees.

Keynote Speaker :South Atlantic Div., Atlanta, GA,

Planning & Policy Div. Chief Eric L. Bush.

Keynote Speaker :Dredging Contractors of

America (DCA) CEO & Exec. Dir.William P. Doyle.

Opening Plenary.


WEDA Exec. Dir.Thomas P. Cappellino

TenCate’s T. Stephens discusses Beach Development and Protection of Resort

Coastline Usng Geotextile Tubes.

SAMARCEL’s A. Dahmani discussesProtein Polysaccharide Biopolymers (PPBs) Technology Evaluation for

Renourished Beach Erosion Control.

Consultant, RADM (Rtd.) Ann Phillipsprovides a military perspective on A

Review of Trends in Norfolk Area and Issues Affecting Operational Readiness

of Ports & Military.

Partrac’s J. Poleykett on The Application of an Active Sediment Tracing Technique to Assess

the Efficacy of Nearshore Placement of Dredged Material for Beach Nourishment Purposes.



Continued

CEDA’s P. Cantner on Safety discusses Leadership “A Winning Attitude.”

Anchor QEA’s Kim Powell on Cedar Creek Site - Operable Unit 2a : Lessons Learned During

Implementation of an Environmental Dredging Project Located Within a Historical Town.

Luncheon Speaker : Virginia Port Authority’s CEO & Exec. Dir. John F. Reinhart discusses

current issues of the Port.

Environmental Commission Meeting.

( L - R ) Craig Vogt presents Environmental Award for Navigation Dredging of Florida Inland Navigation

District Intracoastal Waterway Deepening to :Lori Brownell, Taylor Engineering, Inc. and Norm Bourque, Cashman Dredging.

( L - R ) Craig Vogt presents Environmental Dredging Award for Wagner Creek and Seybold Canal Restoration Project to :

AECOM’s Dan Levy, Sevenson’s Paul Jung and AECOM ‘s Babu S Madabhushi.

( L - R ) Craig Vogt presents Environmental Awardfor Mitigation & Adaptation to Climate Change for

Ninigret Marsh Restoration Project to :JF Brennan’s Andrew Timmis,

Rhode Island Coastal Resources Management Council’s (CMRC) Dan Goulet,

andJF Brennan’s

Tim Tolvetad and Dan McCauley.


Darren Buffett receives WEDA Safety Award from Hile Group’s Julie Hile for

CEDA Dredging and Fluid Management.

Paul Jung receives WEDA Safety Award from Hile Group’s Julie Hile for Sevenson

Environmental Services, Inc.

Mike Warwick receives WEDA Safety Award from Hile Group’s Julie Hile

for Manson Construction.

WEDA’s Special Recognition Awards to L - R : Rebecca Gardner, Andrew Timmis, Don Hayes and Craig Vogt presented by Marcel Hermans.

( L - R ) Great Lakes’ Robert Ramsdell presents DCA’s Best Paper Award to :Andrew McQueen with USACE’s Justin Wilkens.

( L - R ) Great Lakes’ Robert Ramsdell presents Anchor QEA’s

Young Author Award toMargaret Davis.

( L - R ) Great Lakes’ Robert Ramsdell presents DSC Dredge’s Why Dredging is Good Award to

Robert Wagner.



Continued

WEDA Pres. Marcel Hermans presents Dredger of the Year Award to

David E. Simonelli.

WEDA Pres. Marcel Hermans presents Lifetime Achievement Award to Grady Bryant receiving for

William G. Gahagan, P.E.

At Gala Reception L - R :Nevada University’s Don Hayes, O’Brien & Gere’s

Rich Weber and Craig Harley.

At Gala Reception L - R : Certified Laboratories’ Seth Gintz,Mteck Cranes’ Martijn Van Eck, Andre Huijer and

Crane Specialists’ Jeff Kline.

At Reception L - R :CEDA Dredging’s Pat Cantner, Andy Carter, Callan Marine’s Sarah Dearing,

CEDA’s Darren Buffett, Jos Clement and Matthew Peyton.

At Reception L - R : Panolin’s Brandon Rymer, Liebherr’s Dave Shedler, Richard Hutchings, Panolin’s Tim Laemmle, Liebherr’s Olivier Laurent

and Panolin’s Brandon Richards.


Gala Dinner

At Ice Breaker L - R : Carylon’s Jerry Vetter, Del Tank’s Dan Baker, Ellicott Dredge’s Steve Miller and Del Tank’s Duke Long.

At Ice Breaker L - R : Anchor QEA’s Ram Mohan, Kim Powell, Karin Olsen and Athena Technologies’ J. Neil Wicker.

L - R : Dredge Central’s Larry Fleeman with Neumann Equipment’s Paul Jenkyn displays the Neumann cutting wheel.

At AquaBlok Booth :Katie Stubleski.

Greyline Booth L - R : ONCON’s Nick Venditti and Greyline’s George Poole.

Great Lakes Dredge & Dock

Booth ( L ) :Ashley Reese.


Ray BergeronPhone: (734) 676-6108 • Fax: (734) 676-1345

E-mail: [email protected] • www.cablearm.com

TMPAT. PEND.

Manufacturers of Innovative

Clamshell BucketsNavigation Maintenance Dredging

Granular Material • Environmental Dredging

24 Hours: 713/225-4300Toll Free: 800/550-4374Fax: 713/225-5707

meriMex Motor & Controls, LLClAC/DC Motors - New & Rebuilt l Custom Cooling Blowers l Generatorsl Transformers l Variable Frequency Drive Systems l Design Engineering

Houston, TX 77003www.amerimexinc.com

P.O. Box 1549Houston, TX 77251-1549610 N. Milby St.


Continued

Post Conference Boat Tour & Lunch

aboardthe Spirit of

Norfolkwhich toured thePort of Norfolkwhere attendees

viewed threegrand air craftcarriers ( L ).


MAINTENANCE DREDGING, INC.

20” portable cutter-head withpipe/boats/Crane bargeCALL (504) 737-1600

F O R L E A S E

H Y D R O G R A P H I C S U R V E Y S

NATIONALLY CERTIFIED HYDROGRAPHERS Specialize in dredge pre and post dredge surveysVolume Calculations Dual Frequency surveys

JIM STEFFEN - Data Processing Manager BILL BENSON - Field Operations ManagerMICHELE J. GAMBONE - Office Manager

E-Mail: [email protected] TOLL FREE: 1-800-887-8681 PIN#8546

PHONE: 856-589-8546 FAX: 856-589-4897237 DELSEA DRIVE SEWELL, NEW JERSEY 08080

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W o r l d D R E D G I N G . c o m


AmeriMex Motor & Controls...........................................................36

Anchor QEA...................................................................................36

ARC Surveying & Mapping, Inc………………………………………2

Bollinger Shipyards.......................................................................36

Cable Arm...............................................................4, 23, 32, 40

Cashman Dredging…………………………………………………….7

Crestwood Tubulars, Inc. .............................................................37

Dredge Central.........................................................................25, 37

ELLICOTT......................................................................................13

Gahagan & Bryant (GBA).............................................................37

GIS…………………………………………………………………….29

Great Lakes Dredge & Dock.........................................................15

Hydrographic Surveys...................................................................37

Javeler Marine Services..…………………………………………..9

JF Brennan…………………………………………………………….3

KRUSE Integration.........................................................................27

LIEBHERR…………………………………………………………….17

Maintenance Dredging, Inc...........................................................37

Pacific Dredge Company…………………………………………….18

Penticton Foundry…………………………………………………….11

Texas A & M……………………………………………………………31

WEDA – Western Dredging Assn……………………………………39

world dredging mining & construction, vol. 51, 11/12 - 8 ... · world dredging mining &...

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