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Marine Construction Magazine JJSmith Issue 1 2019
Over 30,000 readers, we pride ourselves on covering what we believe to be topics of “actual usefulness” to our readers. Yes, we are a little unorthodox but…we like it like that. The bottom line is, if you are in the Marine Construction or related industry…you’ve come to the right place.

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Published by MarineConstructionMagazine, 2019-03-14 14:42:35

Marine Construction Magazine Issue 1 2019

Marine Construction Magazine JJSmith Issue 1 2019
Over 30,000 readers, we pride ourselves on covering what we believe to be topics of “actual usefulness” to our readers. Yes, we are a little unorthodox but…we like it like that. The bottom line is, if you are in the Marine Construction or related industry…you’ve come to the right place.

Keywords: Construction,Barge,Cranes,Coastal Construction,Magazine

MARINE
CONSTRUCTION®

MAGAZINE

DEVOTED TO THE DOCK BUILDING & MARINE CONSTRUCTION INDUSTRY  /  ISSUE #1, 2019

IN THIS ISSUE THE
TRUTH
BASIC HOISTING GUIDELINES ABOUT

CUTTING & WELDING: ARCHITECTURAL
THE BASICS BID PACKAGES

CONSTRUCTION INSPECTION marineconstructionmagazine.com ISSUE #1 - 2019| A
OF UNDERWATER WORK

SF Marina Systems:
A New Level of
Protection

20’ Wide Floating Breakwater

Taking floating breakwaters to new widths, with
the launch of the 20’, 32’ and 42’ wide breakwaters.
These new advancements are built on nearly
a century of innovation ... delivered worldwide.
To see our full range of marina and industrial
systems, visit sfmarinausa.com

32’ Wide High Freeboard Pier / Breakwater

42’ Wide Breakwater / Helipad

B | ISSUE #1 - 2019 marineconstructionmagazine.com

marineconstructionmagazine.com ISSUE #1 - 2019| 1

Marine Construction® Magazine TABLE of CONTENTS
J.J. Smith & Company Inc.
P.O. Box 1915 FEATURES
Naples, FL U.S.A. 34106
marineconstructionmagazine.com Guidance For Fall Rescue Procedures................................... 4
Underwater Repairs & Methods To Obtain Dry Work
Advertising & Subscription Information Conditions........................................................................... 8
Call: (786) 510-1002 Anytime - Unique Crane...................................................................... 12
Days, Evenings or Weekends. NEWS RELEASE: ShibataFenderTeam is new member of Spanish PIANC
Section ATPYC........................................................................ 14
PUBLISHER NEWS RELEASE: DSC Dredge’s David Miller Announced Retirement... 24
Jennifer J. Smith Floating Pile Driving Rigs.................................................... 26
Cutting & Welding: The Basics............................................. 32
EDITOR NEWS RELEASE: CSR-155 SPT, CPT & Wireline Rotary Core
Christopher S. Smoot Test Drill Rig .......................................................................... 38
Construction Inspection Of Underwater Work...................... 42
ADVERTISING NEWS RELEASE:Paul Curry Named New Training Manager at
[email protected] Link-Belt Cranes ...................................................................... 48
com The Truth About Architectural Bid Packages......................... 52
NEWS RELEASE: Fender specialists share know-how at seminars in
GRAPHICS/LAYOUT/PRINTING Indonesia.............................................................................. 64
Presstige Printing NEWS RELEASE: 2018 Top Five Link-Belt Distributors...................... 76
Basic Hoisting Guidelines.................................................... 82
CARTOONIST/ARTIST NEWS RELEASE: ShibataFenderTeam supplied fenders for the largest port
Theresa M. McCracken project at the Caspian Sea......................................................... 88
www.mchumor.com Basic Rigging Guidelines..................................................... 94
NEWS RELEASE: Historic Yellowstone Fishing Bridge Protected with SeaShield
CONTRIBUTING WRITER Series 500 System.................................................................... 98
S.S. Saucerman NEWS RELEASE: Fender specialists share know-how at seminars in
Freelance Writer for the Indonesia ............................................................................. 100
Building & Construction Industry Ports 2019 Conference........................................................ 104
NEWS RELEASE: Infrastructure Resource in South Florida................. 108
Marine Construction® magazine is published every 2-months.
All material with all contents are all the property of Marine DEPARTMENTS
Construction® magazine. Marine Construction® magazine, web
site www.marineconstructionmagazine.com. All information Cartoons................................................................20, 90, 114
is protected, without limitation, pursuant to U.S. and foreign
copyright and trademark laws. Contents may not be reproduced -CORRECTION-
without prior written permission of the publisher, © 2015, 2016,
2017, 2018, 2019 J.J. Smith & Company; D.B.A. Marine In our Issue #3, May/Jun, 2018 of Marine Construction Magazine
Construction® Magazine. All Rights Reserved. Printed in the on Pages 18-21 appeared an article titled Kiewit Bridge & Marine
U.S.A. Disclaimer: The opinions expressed by the authors and/
or editorials contained are those of the of the respective parties “Marine Safety Practices”.
and do not necessarily represent the opinion of the Publisher.
PLEASE NOTE: This article was printed WITHOUT authorization/
permission from Kiewit and contained outdated and incorrect

language.

From the publishers of Marine Construction Magazine we do
express our most sincere apologies to Kiewit.

2 | ISSUE #1 - 2019 marineconstructionmagazine.com

Flange Web Pile Wall Section Moment
Width Height Thickness Thickness Weight Weight Modulus of Inertia
Section in in lb/ft2
lb/ft in3/ft in4/ft
in in

NZ 14 30.31 13.39 0.375 0.375 55 21.77 25.65 171.7
NZ 19 27.56 16.14 0.375 0.375 55 24.05 35.08 283.1
NZ 20 27.56 16.16 0.394 0.394 57 24.82 36.24 292.8
NZ 21 27.56 16.20 0.433 0.433 61 26.56 38.69 313.4
NZ 26 27.56 17.32 0.500 0.500 71 30.99 48.50 419.9
NZ 28 27.56 17.38 0.560 0.560 78 33.96 52.62 457.4
NZ 38 27.56 19.69 0.689 0.500 86 37.45 70.84 697.3

As a premier steel foundation supplier now offering NZ sheets in addition to our
extensive product line, Nucor Skyline is the ideal partner for your next project.

Visit nucorskyline.com/nz or call 888.450.4330.

© 2019 Skyline Steel, LLC. Skyline Steel, LLC is a wholly-owned subsidiary of Nucor Corporation, the largest producer of steel in the United States.

GUIDANCE FOR FALL
RESCUE PROCEDURES

W hen a person is working at heights as one generally and Prevention Plan” and contains provisions for potential
may encounter when involved in virtually any form self-rescue or assisted rescue of an end user of fall protection.
of marine construction and is using fall protection The “Fall Protection and Prevention Plan” should cover every
equipment, he/she may require rescue if that person falls and potential fall hazard to which authorized persons are exposed
suddenly finds oneself suspended in a harness. Prompt rescue to.
is very important. Studies indicate that a person suspended
in a harness may have blood circulation problems within a Another important document is the “Pre-Incident Plan”. A
few minutes. Accordingly, a site specific “Rescue Plan” must “Pre-Incident Plan” is a formal written plan prepared jointly
be prepared in writing and maintained for all instances where by the Contractor and any available emergency responders
personnel work at heights and are exposed to fall hazards. containing factors that need to be evaluated when assessing
the potential situations, e.g. fuel storage tanks, energized
The “Rescue Plan” should generally contain detailed power cables, hazardous material, cranes, hoists/winches or
procedures on the methods of rescue; methods of self-rescue; any barge mounted equipment or materials that may present a
equipment used; training requirements; specialized training hazard that could affect a given situation during an emergency
for the rescuer; procedures for requesting the rescue; and condition. The “Pre-Incident
available medical assistance. Where the rescue may not be
or cannot be solely performed by a jurisdictional public, e.g. Plan” is prepared, reviewed, updated, and approved by a
city or municipal fire department, Coast Guard and/or any competent person. The fall protection program manager from
“Paramedic Type Emergency Response Agency then the “Rescue the activity reviews and concurs with the portion of “Pre-Incident
Plan” must contain detailed procedures on the planned rescue Plan”, which addresses rescuing a person who has fallen and is
methods. suspended in a harness and incorporates this information into
the “Rescue Plan”.
The “Rescue Plan” is a part of the written “Fall Protection
Following a fall from a height the end user of fall protection,
who is wearing a body harness that is properly secured to an
anchorage, may be suspended in the harness for a length-of-
time if self-rescue or rescue by co-workers cannot be performed
quickly.

Sustained immobility in a body harness may lead to
suspension trauma also known as harness induced pathology
as described in reference (a). Suspension trauma resulting
from the accumulation of blood in the veins commonly
called venous pooling. The symptoms (known as orthostatic
intolerance) of suspension trauma include lightheadedness,
dizziness, weakness and occasionally fainting.

Normally when an individual faints and collapses, the
pooled blood is now no longer being held down by gravity
and returns to the heart, where it is once again distributed to
the body. Assuming no injuries are caused during the collapse,
the individual will quickly regain consciousness and recovery is
likely to be rapid.

When an individual hangs in a harness in a vertical or near-
vertical position without moving his legs, the same thing can
happen; only this time when he passes out he remains vertical.
An accumulation of blood in the legs reduces the amount
of blood in circulation. After an initial speeding up of the
heartbeat, the heart rate then slows down and blood pressure
will diminish in the arteries. The reduction in quantity and/or
quality (oxygen content) of blood flowing to the brain leads to
unconsciousness and harmful effects on other vital organs. If
these conditions continue, they potentially may be fatal.

As one can see…the importance of a timely rescue of a worker
suspended in a harness or who has become incapacitated
due to an injury and/or heart attack mandates the need for a
written rescue plan. n

4 | ISSUE #1 - 2019 marineconstructionmagazine.com

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marineconstructionmagazine.com ISSUE #1 - 2019| 7

UNDERWATER REPAIRS &

METHODS TO OBTAIN DRY WORK CONDITIONS

M ost marine construction activities that are performed above typically smaller and less costly than that required to produce a
water can be performed below water. Environmental dry site. Performing work below water also provides flexibility in
conditions and regulatory constraints at the site will often the equipment and repair methodology used. Divers can navigate
dictate the most functional and cost effective method to perform the around substructure units below water with ease, provided the
work. Regardless of whether repairs are performed in-the-dry or environmental conditions do not restrict movement.
in-the-wet, the environmental conditions and regulatory constraints
during both the implementation and life cycle of the repairs must be Working below water also poses many concerns that the
closely examined prior to the selection of the repair methodology contractor and engineer must be aware of. Site, water, and
and material. regulatory conditions all play a significant role in the ability
to perform and inspect underwater repair work. Each of these
GENERAL CONSTRUCTION OPTIONS factors can substantially reduce work productivity and increase the
repair costs. It is recommended that owners utilize the services of
REPAIRS PERFORMED “IN-THE-DRY” contractors and engineers experienced in underwater repair that
“In-the-Dry” refers to construction work performed in a dry can successfully navigate through these issues and determine a
comprehensive repair methodology.
worksite. A dry worksite can be obtained by installing cofferdams,
constructing dikes, or installing portable dams. Regardless of the ENVIRONMENTAL CONSIDERATIONS
method used, creating a barrier between the work area and the
water typically allows the contractor to perform and inspect repairs SITE CONDITIONS
in a dry, manageable environment. Marine construction activities are more costly than similar

Working in-the-dry is often preferred by contractors due to activities on land, and this cost may be increased when much of the
the increased productivity and work rates. However, the logistics work is performed by diving. Site access requires boats and crews,
and requirements necessary to produce and maintain a dry site along with on-water travel time between the land side staging area
often involve large equipment and temporary works resulting in and the work site. Depending on the work site location, on-water
increased repair costs. mobilization may take place miles away.

REPAIRS PERFORMED “IN-THE-WET” Marine vessel traffic must also be monitored during repairs.
“In-the-Wet” refers to construction work performed underwater. Work times on some waterways may be restricted to accommodate
marine vessel movement in the surrounding area. These issues are
Performing repairs below water often involves the use of commercial often addressed during the permitting process and through local
divers. The support system and equipment used by divers is marine authorities and the United States Coast Guard.

8 | ISSUE #1 - 2019 marineconstructionmagazine.com

WATER CONDITIONS Diving operations can be conducted in a wide range of water
Many constraints must be considered when determining how best temperatures utilizing special dive suits that allow the diver’s body
temperature to remain consistent. Work in extreme conditions
to perform, schedule, and stage underwater repair work. These reduces the efficiency of the divers and their support crews. Dive
include currents, tides, water depth, temperature, and visibility. operations should be scheduled around these conditions, with such
work conducted only in emergency situations.
Currents are typically observed in rivers as well as tidal currents in
coastal areas. Additional currents can result from local occurrences, Extreme temperatures may also affect material properties. Cold
such as a water discharge through overflow pipes or dam outlet temperatures can increase cure times or impede the curing process
works. Currents and tides can fluctuate daily, affecting the ability of of polymers. Similarly, elevated temperatures may increase the
divers to work and the operation of vessels and other equipment. set time of some cementitious repair materials. It is important that
A diver cannot reasonably perform work when currents exceed material properties and compatibility of repair systems be verified
approximately 2.5 feet per second (fps). When currents exceed 4 prior to installation and closely monitored during construction.
fps, it becomes difficult to accurately place and drive sheet piling.
An underwater visibility greater than 3 feet is desirable in order
Alternative construction methods can be used to support work to properly and efficiently undertake repairs. While divers can
in higher currents, including the use of dive shields deployed from perform limited tasks in conditions of poor visibility, minimal below
an anchored barge or platform. The shield will locally block the water visibility is required to effectively perform most construction
water flow, creating an area where the diver can work effectively. activities. In some instances, clear water can be brought to the site
Costs are typically high and work space restricted when special and pumped into localized areas to increase the visibility; however,
equipment like a shield is required. this is very costly.

Depth has a substantial effect on work productivity and TRADITIONAL COFFERDAMS
construction costs. Below water, the added water pressure acting Traditional cofferdams when
upon the diver causes physiological changes in the body and in the
absorption of gases from the breathing air. These effects increase used in rehabilitation and
with depth and limit the time available to safely work at that depth. repair are typically constructed
Productivity can vary widely due to current, visibility, temperature, by driving steel sheet piling
and the strenuousness of the work tasks to be performed. around an existing foundation
to resist soil and water
Bottom Depth Estimated Productive Bottom pressures. The area between
Time per Day the cofferdam and the work
3.0m (10 ft.) 6 hours area is dewatered allowing for
12.2m (40 ft.) 6 hours work in a dry condition.
18.2m (60 ft.) 4 hours
24.4m (80 ft.) 3 hours
30.5m (100 ft.) 2 hours

DIVER PRODUCTIVITY AT VARIOUS DEPTHS
In addition to diving operations, the cost of dry-condition

construction also increases with depth. Greater depths produce
larger hydrostatic pressures on the underlying system. To resist
these pressures, the amount of material and bracing required to
construct cofferdams and dikes will also increase.

ILLUSTRATION OF A TRADITIONAL COFFERDAM
The structural design and detailing of the traditional cofferdam

is typically conducted by the contractor’s engineer. Special
consideration must be taken to ensure the structural integrity of
the cofferdam. In addition to resisting hydrostatic pressure, the
engineer must take into account the effects of the river current,
channel bottom configuration, seepage pressures, water level
variation, and site restrictions. Cofferdam design and construction
may be further complicated by remains of previous cofferdams and
seals left in place and pier batter piles. The contractor determines
the maximum water elevation for design, weighing risk factors
such as seasonal river changes and work duration. Constructability

marineconstructionmagazine.com ISSUE #1 - 2019| 9

issues must also be examined by both the contractor and engineer
to ensure that the cofferdam can be erected and dewatered during
the course of work. Overhead clearance may limit installation of
sheet pile cofferdams around existing bridges. The use of vibratory
pile hammers reduces overhead clearance requirements, but room
must be sufficient to handle and position the sheets. Sheets can be
set in short sections with welded splices, but this is very expensive.
Additional concerns arise since the cofferdams are subject to, and
may aggravate, local pier scour.

Cofferdams will experience leakage and provisions must be
made for continued pumping. This may require personnel to be on
site even when construction activity is not underway.

DIKES

Dikes can be constructed around work areas to provide a dry work

condition. A variety of materials can be used to construct the dikes,

including roadside barriers and plastic sheeting, sand bags, and

compacted clay. An advantage of using dikes includes construction

with the use of limited heavy equipment and inexpensive materials.

However, dikes are restricted to use in shallow water areas with

limited flow. In addition, compacted clay and other materials

used in dike construction may have to be disposed of as a

contaminated material after use.

PROPRIETARY BARRIER SYSTEMS
Several types of proprietary barrier systems are available for

use on marine projects. Some commonly available systems consist
of water filled bladders and membrane covered support frames.
These systems are typically limited to waters less than 10 feet
in depth having minimal currents and firm river beds with low
permeability. n

10 | ISSUE #1 - 2019 marineconstructionmagazine.com

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marineconstructionmagazine.com ISSUE #1 - 2019| 11

NOW THIS IS

SOMETHING

UNIQUE!

Y es, we found this Picture immediately to your left as
“Unique” a Crawler as we had seen in a while. As
you can see from the Photo’s below left, you have
your Conventional Crawler Crane with Cab Body
Cab mounted directly above the tracks, as well as a Photo
of what a typical Crawler Mounted Excavator with the Cab
Body mounted directly above the tracks working in water,
placing Rip-rap. As you can see, such an Excavator has its
limitations; more specifically…deep water.

Obviously, ANY conventional Crawler Crane and/or Crawler
mounted Excavator has its limitations when working in the water.
One is basically limited to boom reach and then of course, the
water level and well, once it reaches the top of the tracks…that’s
the end of that! You go any further and the next thing you know
your Cab Body is under water, and we don’t need to explain to you
what happens next to your Diesel Engine.

Then we recently came across the following Photo…

Now this, we found UNIQUE! I must say, in my 30+ years of
being in the Marine Construction Industry I have NEVER come
across a “Crawler” with an Extended Cab Body as shown in the
picture above; hence the reason for wanting to share this Photo
with our readers. While I don’t know the exact height of the
“extension” itself, based on the individuals walking in the picture,
my best estimate would be 6 ft. at a minimum. I would not be
surprised if this set-up was able to install the ENTIRE sheet pile
breakwater in the background the ENTIRE length into the ocean;
thus, eliminating the need for a Crane Mounted Barge to complete
the work in deeper water.

I will say this, while my immediate thoughts were “what an
incredible idea”! But, if it is such a novel approach to the design
of a Crawler, then why hasn’t Link-Belt, American, Manitowoc,
Liebherr, P & H, Kobelco, Mantis or even CAT for that matter
producing such an animal?

Well, I could only imagine that an “extension” of this kind might
just play “hell” with the Mfgrs., suggested “Lift Capacity Ratings”.
Let alone, there goes any “Low Center of Gravity” with the Cab Body
Six (6) ft., higher than normal. Who only knows what the maximum
reach would be? I am by no means an expert on Crawlers; far from
it. However, we at MC Magazine would be interested in hearing
from any of our readers as to your comments. Feel free to send
them to the Attention of Chris Smoot - Editor, Marine Construction
Magazine. Email: [email protected] or
mail to: P.O. Box 1915, Naples, FL. 34106.

Regards,
Chris Smoot - Editor

12 | ISSUE #1 - 2019 marineconstructionmagazine.com

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NEWS

RELEASE

SHIBATAFENDERTEAM IS NEW MEMBER
OF SPANISH PIANC SECTION ATPYC

Since the beginning of the year, ShibataFenderTeam Our new office in Spain is not even a year old and we already
Spain, our Spanish branch, is a Corporate Member of the celebrated two successfully completed installations in 2018 –
Spanish section of PIANC, the ‘Asociación Técnica de Puertos y Cylindrical Fenders for the Port of Málaga and Port of Gijón. The
Costas’ (ATPYC). ATPYC was founded in 1998 and is one of the Port Authorities of both harbors relied on us and were satisfied
many National Sections of PIANC, The World Association for with our high quality products and especially with our ongoing
Waterborne Transport Infrastructure . ATPYC has a very active and design and engineering support for their fender equipment. The
engaged community of members and operates its own Working successful start of our Spanish office confirms our strong position
Group dealing with ‘Integration of maritime equipment oriented in the Spanish market and leaves us with a fantastic outlook into
to berthing and mooring of ships in docks’. Our Sales Engineer future operations.n
Alvaro Rodero, responsible for the markets in Spain, Maghreb
and West Africa, will represent ShibataFenderTeam in this Working
Group. His 5 years of experience with ShibataFenderTeam gave
him the possibility to gain an extensive amount of knowledge of
all kinds of projects in the fender industry, which he looks forward
to share with the Working Group Members. With SFT Group at his
back, he is supported by a network of expertise and experience.

As a Corporate Member of ATPYC, we become part of a well-
connected association and will be able to further expand our
connections to the national port association including main port
authorities, main contractors, main engineering and suppliers.

14 | ISSUE #1 - 2019 marineconstructionmagazine.com

marineconstructionmagazine.com ISSUE #1 - 2019| 15



marineconstructionmagazine.com ISSUE #1 - 2019| 17

AERIAL LIFT FALL
PROTECTION OVERWATER
IN SHIPYARDS

A erial lifts are often used in shipyards and boatyards when ¡¡ To prevent tip-overs, it is important to:
erection of staging is impractical. These boom supported ¡¡ set brakes
personnel platforms and bucket trucks (i.e. - cherry pickers) ¡¡ use wheel chocks
may cause worker injuries or deaths. ¡¡ check tire pressure
¡¡ extend outriggers
Boom failure, tip-over, falls and ejection may occur if the is not ¡¡ ensure lift is level (front/back/sides)
properly used. O.H.S.A has numerous “Safety Tips” they offer ¡¡ never operate in high winds
relative to various marine related construction situations. Following ¡¡ never operate under power lines
is just one we thought our readers could benefit from.
REMEMBER
Employers must take measures to ensure a safe work environment ¡¡ A Personal Flotation Device (PFD) alone will not help if a worker
by providing:
¡¡ Safe and adequately maintained equipment falls from heights of more than 40 feet to the water, or onto
¡¡ Proper supervision and training objects below (camels, floats, punts, fenders, or large floating
¡¡ Fall protection objects). Always tie-off.
¡¡ Prompt rescue in the event of a fall ¡¡ If a lift gets caught on an object or lines, it may cause an ejection
SAFE WORK PRACTICES when it comes loose.
¡¡ Always tie-off. ¡¡ Never lift, push or move objects with an aerial lift; this action may
¡¡ Wear a body harness with a lanyard attached to an adequate cause collapse, tip-over, or ejection.
¡¡ Never exceed load capacity with the combined weight of the
anchorage point. worker, tools and light materials. The extra weight may cause a
¡¡ Never move the lift with workers elevated. collapse or tip-over.
¡¡ Train operators to safely operate equipment. ¡¡ The lift capacity is reduced when the lift is not level, tire pressure
¡¡ Maintain and operate equipment in accord with the is low, or the outriggers are not fully extended. These conditions
may cause a tip-over.
manufacturer’s instructions. ¡¡ Half of all fatal falls from aerial lifts occur when workers are not
¡¡ Ensure that equipment controls are properly marked. tied off. One worker was ejected 80 feet from an aerial lift.
¡¡ Never override safety devices. Overriding may lead to accidental ¡¡ Improper set-up, operation, or exceeding weight capacity account
for twice as many aerial lift fatal falls as mechanical failure.
or inadvertent movement of the basket or lift.
¡¡ When a lift is on a barge, be aware of the list, trim and lash

down points.
¡¡ Place stops to prevent driving off when a lift is near open edges

and capable of movement.
¡¡ Know the swing radius to ensure that the aerial lift will not hit

nearby structures as it moves.
¡¡ When elevated, never get between structures and the lift.

MOVEMENT COULD CRUSH THE WORKER.

18 | ISSUE #1 - 2019 marineconstructionmagazine.com

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www.shibata-fender.teammarineconstructionmagazine.com ISSUE #1 - 2019| 19

Marine Construction

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20 | ISSUE #1 - 2019 marineconstructionmagazine.com

marineconstructionmagazine.com ISSUE #1 - 2019| 21



DRIVING E QUIPMENT, INC. AME
J&M FOU
QUIPMENT
NDATION ERICAN PILE

NEWS DSC

RELEASE DREDGE’S

DAVID MILLER

ANNOUNCED

RETIREMENT

RESERVE, LOUISIANA - On October 16, 2018, after 38
remarkable years in the dredging industry, David Miller, SVP/COO
and part owner of DSC Dredge, LLC announced his retirement. Miller
embarked on his career in the early 1980’s when he began working
for Kenner Marine & Machinery (KMM). Following several consecutive
KMM positions, David completed his final 10 years there as a field
service specialist.

David Miller was one of the original founders of Best Equipment
Technologies, Inc. (BEST), established in 1998, located in Poplarville,
MS. BEST operated as a steel fabrication shop and dredge
manufacturer. Partnered with the Wetta family, Miller helped found
companies that provided essential services to the dredging industry.
In 2010, these companies were consolidated into DSC Dredge, LLC
(DSC) and the group forged ahead, enhancing its reputation as a
world leader in the manufacturing of portable cutter suction dredges.

With his career in the dredge manufacturing industry affording the
opportunity, Miller remains an avid traveler today. Bob Wetta, DSC
President and CEO explained, “David can boast that he has visited
all 50 USA states, as well as over 50 countries. We are proud to
recognize David for his unconditional dedication, commitment and
hard work.” Wetta continued, “David Miller will be deeply missed,
yet we can only feel happy for him after his many years of expert
service.” Fellow owner Bill Wetta, Senior Vice President of Product
Development and Chief Technology Officer added, “DSC Dredge is
simply a better company because of David’s valuable contributions
and incredible impact made during his career and within our
company. On behalf of everyone at DSC, we wish David the very
best. May this next chapter of life continue to allow new adventure
and continued travels!”n

24 | ISSUE #1 - 2019 marineconstructionmagazine.com

INTRODUCING… URpeatoch6!0’

The AmphiMaster®!

The FIRST Amphibious “Long Reach” Excavator that CAN Actually Excavate while in a Floating State!

THE AmphiMaster®

A “self-propelled” amphibious excavator/marsh buggy
specifically designed to maneuver in marshy, swampy, soft
terrain areas it can also float on water as an added safety
feature. With its self-propelled feature, it can access virtually
all terrains yet requires minimum supporting transportation
and hoisting equipment. More impressive, with its optional
Hydraulic “Spud System”, one can literally excavate while the

Tracks are in a Floating State!

HYDRAULIC EXTENDABLE PONTOONS

An optional design feature allows each pontoon to retract or extend
outward hydraulically. A fully retracted pontoon with reduced footprint
provides the added advantage and convenience of transporting the

machine by trailer without dismantling into modules.

SUPPLEMENTARY PONTOONS AND SPUDS

Supplementary pontoons can be easily attached onto the outer side of the primary pontoons to enhance
stability. The hydraulic-mechanical spuds system which is control from the operator cabin is a superb solution
to overcome buoyancy in deep water, providing additional stability and enhanced operability on water up

to 12’ deep. Users can choose to add the supplementary
pontoons and spuds system at the later stage when need arises.

FOR USE IN:

• Maintenance and cleaning of waterways, lakes,
shorelines, ponds, etc.

• Erosion control and prevention.
• Deepening of waterways and river deltas.
• Maintenance and repair of natural environment.
• Flood protection and flood maintenance works.
• Swamp and wetland construction.
• Road building through wetlands.

EIK International Corporation| 14430 Grant Road, Cypress, TX 77429, USA
www.eikinternational.com

Jonathan Goo Contact Erin Mabery
[email protected] [email protected]

+1 832 836 6487 +1 832 914 2646

FLOATING During lifting operations, the stability of the floating crane/
derrick or vessel with an auxiliary shipboard crane shall meet
PILE DRIVING the USCG requirements for “Lifting”.

RIGS The load rating of a floating crane/derrick shall be the
maximum working loads at various radii as determined by the
manufacturer or qualified person considering list and trim for
each installation. The load rating shall specifically reflect the:
design standard; machine trim; machine list; and dynamic/
environmental loadings anticipated for the operational
envelope of the floating crane/derrick or auxiliary shipboard
crane.

The load rating is dependent upon the structural competence
of the crane or derrick, rope strength, hoist capacity, structural
attachment to the floating platform, and stability and freeboard
of the floating platform.

When deck loads are to be carried while lifting, the situation
shall be analyzed for modified ratings.

When mounted on barges or pontoons, the rated loads
and radii of land cranes and derricks shall be modified as
recommended by the manufacturer or qualified person. The
modification should always be evaluated by the qualified
person specific to the floating platform mounting the crane.
Load charts should be generated based on the crane load rating
for floating service. In addition, the load charts for floating
service must comply with the specific standard it was designed
for and clearly explain the floating platform and dynamic/
environmental parameters that apply to the load chart.

The load chart should, at a minimum, identify the following:
¡¡ Draft limits (with deck cargo considered),
¡¡ Vessel motion limits,
¡¡ Vessel and crane list/trim limits, and
¡¡ Vessel condition (e.g., dry bilges, watertight integrity, etc.).
¡¡ Crane manufacturer Notes, or reference to them.

W hen pile drivers are working over water, all relevant Safe Working Load Chart with:
precautions for work over water should be taken in ¡¡ Mode of operation,
accordance with this code and in particular a suitable ¡¡ Environmental limits,
boat should be kept readily available at all times. ¡¡ Capacity (net or gross),
More specifically… ¡¡ Load, boom elevation, radius (with list/trim considered), and
¡¡ All members of floating pile driving crews should be trained
Crane configuration, such as:
to handle boats. ¡¡ Boom length,
¡¡ Floating pile driving rigs should be provided with a whistle, ¡¡ Amount of counterweight,
¡¡ Parts of wire, and
siren, horn or other effective signaling equipment. ¡¡ Block size.
¡¡ Floating pile driving rigs should be provided with adequate Cranes and Derricks Mounted on Barges or Pontoons:
Barge- or pontoon-mounted land cranes require modified
fire-fighting equipment. ratings due to increased loading from list, trim, wave action,
¡¡ The weight of machinery on a floating pile driving rig should and wind. This rating will be different for each size of pontoon
or barge used. Therefore, the load rating of barge or pontoon-
be evenly distributed so that the deck of the installation is mounted land cranes and derricks shall not exceed that
horizontal. recommended by the manufacturer for the particular barge or
¡¡ Steel barge hulls should be divided into watertight pontoon under the expected environmental conditions.
compartments. All deck surfaces of the pontoon or barge shall be above the
¡¡ Watertight compartments should be provided with siphons water. Tie-downs should be provided for derricks to transmit the
for the removal of water seepage. loading to the barge or pontoon. …and finally, all Cranes shall
¡¡ Barge deck hatches should have firmly fastened covers that be blocked and secured to prevent shifting.
fit flush with the deck. As with any Marine Construction project, safety comes first! n
¡¡ Sufficient sheaves should be provided on the barge deck to
enable the crane or pile driving rig to be safely maneuvered
in any direction and safely secured in position.
¡¡ Regular head counts should be taken of the pile driving
crewmembers.

26 | ISSUE #1 - 2019 marineconstructionmagazine.com

SEASHIELD™
SERIES 2000HD

Steel and Concrete
Pile Protection System

SEASHIELD™
SERIES 90

Timber Pile
Protection System

FIBER-FORM
JACKETS

COAL TAR EPOXIES

High build up to 26 mils WFT in one coat, avaliable in a LOW VOC version
(0.4 lbs/gal VOC) and a coal tar replacement.

Custom Fiberglass Jackets
for All Pile Shapes & Sizes

SEASHIELD™ SERIES 70

A durable berglass wrap system for new and hour glassed
timber piles to prevent pile deterioration.

LEADERS IN
CORROSION PREVENTION

www.densona.com

Call: +1 281-821-3355 E-mail: [email protected]

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With the popular Larssen interlock

Immediate delivery from US inventory and mill direct

Section description Section Modulus Moment of Inertia Width single Weight wall area

in3/ft in4/ft inch lbs/ft2
cm4/m mm kg/m2
cm3/m 229.2 24.80 22.7
31,300 630 110.8
ESZ17-630 31.1 157.4 30.31 24.7
1,670 21,496 770 120.7
266.6 24.80 26.7
ESZ18-630 33.6 36,410 630 130.5
1,805 266.3 27.56 21.7
36,360 700 105.7
ESZ19-630 36.1 277.5 27.56 22.7
1,940 37,890 700 110.6
288.7 27.56 23.6
ESZ17-700 32.3 39,420 700 115.4
1,735 299.2 27.56 24.6
40,860 700 120.2
ESZ18-700 33.6 310.3 27.56 25.6
1,805 42,380 700
409.1 27.56 125
ESZ19-700 34.9 55,870 700 26.2
1,875 438.0 27.56 127.9
59,810 700 28.3
ESZ19-10/10 36.1 466.8 27.56 138.1
1,940 63,750 700 30.4
667.3 27.56 148.4
ESZ20-700 37.4 91,130 700 34.0
2,010 688.4 27.56 166.1
94,000 700 35.2
ESZ24-700 45.3 709.3 27.56 171.8
2,435 96,860 700 36.3
730.2 27.56 177.4
ESZ26-700 48.4 99,720 700 37.5
2,600 751.3 27.56 183.1
102,590 700 38.7
ESZ28-700 51.4 188.8
2,765

ESZ36-700 66.6
3,580

ESZ37-700 68.6
3,690

ESZ38-700 70.7
3,800

More sMeocMMrtieooonsrEreesScsZswtee3iiocl9cltnt-ib7ioso0ennw0sasilwvlwaiblillelabbbaeevleaaavisvlaaoaibloialnlabe.blesleo3s7o,o9s2n0.oo65.no.n.
74.7
ESZ40-700 4,015

More sections will be available soon.

+: & 35+/ : + + &::&3 5&& /133 55 (//. & 2 3 &1&, < ( 1)1.2+( (.3$2.2, "<3 3 ),<,+ <) )$++ "$ $ "" +1TT.8T.+6.+16+1813861686363683171337310838778777070

T. +: 5+0+ :(+ 2 :6 5 0 + (55020 ++ 6(( (2 2 60+6 6 36 , ( < 6 0+)6(6(+0+ 0 3+66, 3< 3,)<,+ <) )++
WWWWWWW.WMWW.E.MME.MEVEEEVEVREVE.URER.SRU.U.SUSS (/0(2 *( / 0( /2 0*( (6 22 ( **0+ 6 3 6 , (< 06+)6(6(+0+ 0 3+66, <3 3),<,+ <) )++ E. [email protected]@[email protected]@vmeemere.eeuvveseevrr.e.uurs.us

ONE NATION, UNDERGROUND, WITH QUALITY ASSURANCE FOR ALL

WE’RE “AMERICAN PROUD” TO PARTNER WITH THE LEADING UTILITY CONTRACTORS IN THE USA.

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The Right Pipe • Right on Time

ONE NATION, UNDERGROUND, WITH QUALITY ASSURANCE FOR ALL

WE’RE “AMERICAN PROUD” TO PARTNER WITH THE LEADING UTILITY CONTRACTORS IN THE USA.

STEEL CASING • PIPE PILING • VERTICAL SHAFTS • TELECOM DUCT, BOXES & ACCESSORIES

Pittsburgh Pipe • www.pittsburghpipe.com • 800-325-2653
The Right Pipe • Right on Time



CUTTING & Burning, cutting and welding operations (referred to as
hot work) are commonly associated with renovation and
WELDING: new marine construction activities. Potential health, safety,
and property hazards result from the fumes, gases, sparks,
THE hot metal and radiant energy produced during hot work. Hot
work equipment, which may produce high voltages or utilize
BASICS compressed gases, also requires special awareness and
training on the part of the worker to be used safely. Arc welders
32 | ISSUE #1 - 2019 marineconstructionmagazine.com are trained to take appropriate precautions to prevent the skin
and eye burns that can occur as a result of exposure to the UV
emitted during arc welding. However, it is also important to
ensure that persons in the vicinity of the welding operations are
prevented from entering areas where arc welding is occurring
and are warned not to stare at the arc. The hazards associated
with hot work can be reduced through the implementation of
effective control programs.

PREPARING HOT WORK AREAS
Areas where hot work is done should be properly designated

and prepared. Combustible and flammable materials within
the work area should be protected against fire hazards and the
operation should not pose a hazard to others in nearby areas.
To help achieve this, the following controls should be used:
¡¡ Cutting and welding operations are performed only by

authorized, properly trained individuals;
¡¡ If possible, hot work must be performed in a properly

designed shop area equipped with all necessary controls
and adequate ventilation;
¡¡ Move combustible materials at least 35 feet from the work
site. If this is not possible, protect combustible materials with
metal guards or by flameproof curtains or covers (other than
ordinary tarpaulins);
¡¡ Cover floor and wall openings within 35 feet of the work site
to prevent hot sparks from entering walls or falling beneath
floors or to a lower level.

¡¡ Fire resistant curtains and/or tinted shields must be used to The intensity of light or radiant energy produced by welding,
prevent fire, employee burns, and ultra-violet light exposure. cutting or brazing operations varies according to a number of
factors including the task producing the light, the electrode size
¡¡ Hot Work Checklist and the arc current. The following table shows the minimum
¡¡ Has equipment been inspected and found to be serviceable protective shades for a variety of welding, cutting and brazing
operations for construction activities:
prior to use?
¡¡ Are sprinklers in service, where provided? Welding Operation Shade Number
¡¡ Have flammable liquids been removed from work area?
¡¡ Have combustible or hazardous materials been relocated Shielded metal-arc welding 1/16-, 3/32-, 1/8-, 5/32

at least 35 feet from the operation? Have combustible inch diameter electrodes 10
materials that cannot be removed been covered with fire-
resistive tarpaulins? Gas-shielded arc welding 1/16-, 3/32-,1/8-, 5/32
¡¡ Have floor and wall openings within 35 feet of the operation (nonferrous)
been tightly covered?
¡¡ Have screens or shields been erected to protect pedestrians inch diameter electrodes 11
from the welder’s arc?
¡¡ Has the atmosphere been tested for presence of flammable Gas-shielded arc welding 1/16-, 3/32-, 1/8-,5/32-
gases or vapors? (ferrous)
¡¡ Do all workers have personal protective equipment (PPE)
appropriate for their tasks? inch diameter electrodes 12
¡¡ Are ample fire extinguishers available?
¡¡ Welding and Cutting Personal Protective Equipment Shielded metal-arc welding 3/16-, 7/32-, 1/4-inch
¡¡ Eye, face, hand/arm, head and body protection (leather
gloves, leather apron, gauntlets, safety glasses with side diameter electrodes 12
shields, welders helmet or welders goggles) are required that
are appropriate to the potential hazards encountered during 5/16-, 3/8-inch diameter 14
welding, cutting, brazing, soldering, grinding or other spark electrodes
producing operations.
Atomic hydrogen welding 10-14
¡¡The intense light associated with
welding operations can cause Carbon-arc welding 14
serious and sometimes permanent
eye damage if operators do not Soldering 2
wear proper eye protection...
Torch brazing 3 or 4

Light cutting, up to 1 inch 3 or 4

Medium cutting, 1 to 6 inches 4 or 5

Heavy cutting, more than 6 5 or 6
inches

Gas welding (light), up to 1/8 4 or 5
inch

Gas welding (medium), 1/8- 5 or 6
to 1/2-inch

Gas welding (heavy), more 6 or 8
than 1/2-inch

marineconstructionmagazine.com ISSUE #1 - 2019| 33

HANDLING AND USE OF GAS CYLINDERS AND EQUIPMENT used on both the ground and positive lead. There must be
¡¡ When moving and storing cylinders, make sure the cylinder no splices or connections within 10’ of the electrode holder
(stinger).
valves are closed, caps are on, and the space is dry. If ¡¡ Wherever practicable, shield anyone in work area from
acetylene is being used, properly ventilate. Tilt and roll on the direct rays of the arc. Barricade hot material with a fire
bottom edges. Avoid dropping. Cylinders must be secured in blanket or other non-combustible tarp.
a vertical position. ¡¡ Regulators and gauges must only be repaired by qualified
¡¡ Remove regulators unless secured on a cylinder cart and suppliers.
have a 10 pound ABC rated fire extinguisher on cart. Remove ¡¡ Inspect the work area and look for potential hazards. Move
regulators from oxygen/acetylene cutting assemblies/rigs combustibles within 35 feet of the work area away from the
unless properly secured on a cylinder cart. Note: Regulators work area. If combustibles can’t be moved, cover them with
are to be removed from the cylinders after use unless it can a non-combustible tarp. Make sure equipment is in good
be determined that the cutting assembly/rig will be in use working order.
within the following twenty-four (24) hours. ¡¡ Make sure a fire extinguisher is nearby. Post a fire watch if
¡¡ When hoisting cylinders, use pallet, cradle, or sling board. conditions warrant. Make sure a multi-rated dry chemical
Do not use choker sling or magnet. fire extinguisher is nearby. If aluminum, magnesium or other
¡¡ When cutting or welding, protect cylinders from sparks, hot combustible metals are being welded, a Class D – Metals fire
slag or flame by separating them, or use fire-resistant shields extinguisher needs to be directly available.
or blankets ¡¡ Perform atmospheric testing if the potential exists for
¡¡ Use friction lighters (not matches, cigarettes, etc.) to light flammable gases or vapors in the work area. Also be aware
torches. of combustible dust (sawdust, aluminum chips etc.). Provide
¡¡ When work is finished or cylinders are empty, make sure ventilation if needed. Perform periodic gas tests if needed.
cylinder valves are closed and the caps are on the cylinders Perform atmospheric flammable/combustible gas test if
¡¡ Store regulators, hoses, etc. in a clean, dry, well ventilated needed
space. ¡¡ Cover barge openings, deck openings, etc., and any other
¡¡ Oxygen and acetylene cylinders must be separated by a fire openings where it would be possible for a spark to fall and
wall or a minimum of 20 feet when in storage. create a fire.
¡¡ Flashback safety valves must be used on all hoses and lines ¡¡ Shield nearby workers from flash burn. Communicate fire,
at the gauges and manifolds. burn and flash burn hazards to them.
¡¡ Handling and Use of Welding Equipment ¡¡ Make sure you don’t negatively affect other operations and
¡¡ All electric welding machines must be properly grounded, equipment nearby.
and all electrical cables inspected prior to use for damage, ¡¡ Make sure you know the location of the nearest phone and
excess fraying and loose connections. fire alarm pull station. n
¡¡ Where it is necessary to couple several lengths of cable for
use as a welding lead circuit, insulated connectors should be

34 | ISSUE #1 - 2019 marineconstructionmagazine.com



SEASHIELD™
SERIES 70

Durable Fiberglass Wrap
System for Timber Piles

SEASHIELD™
EPOXIES & GROUTS

SEASHIELD™ SERIES 500 Pumpable Grouts & Epoxies
for Pile Protection
Heavy-duty berglass jacket pile protection
for steel, concrete and timber piles. SEASHIELD™
SERIES 400

Non-Corrosive Structural
Repair for Timber Piles

SEASHIELD™ SERIES 2000HD

Heavy-duty steel and concrete pile protection system with marine grade
petrolatum tape and an HDPE outercover secured with a bolted system.

LEADERS IN
CORROSION PREVENTION

www.densona.com

Call: +1 281-821-3355 E-mail: [email protected]

MKT V-52 = 201 tons MKT MANFACTURING, INC.
of Driving Force
We provide the highest quality, highest performance most cost effective Pile
Driving Equipment to our customers who build the foundations of our

future. To assure our customers get full benefit from their investment, we
supply outstanding applications, parts and service support through a
hardworking team of dedicated and experienced professionals.

Offering a Full Line of Pile Driving Equipment:

• Hydraulic Vibratory Drivers/Extractors
• Excavator Mounted Vibros
• Diesel Pile Hammers
• Excavator Lead System
• Hydraulic Auger Systems
• Air/Steam Pile Hammers
• Jet Pumps
• Hydraulic Power Packs
• Pile Driving Accessories and more!

MKT ELS V-5E Excavator Mounted Excavator Mounted
MKT V-22 weights 9,300 lbs. Vibratory Hammer Vibratory Hammer
without Bias Weights
At MKT, we promise:

• Responsive, creative customer support and service
• Absolute honesty in our relationships with customers, distributors,

and employees
• Restless pursuit of reliable technology in the design and

manufacture of our products and their accessories
• Encouraging the growth and capabilities of our employees in a

challenging environment where they enjoy coming to work

MKT MANUFACTURING, INC.

1198 Pershall Rd. • St. Louis, MO. 63137-3500
Ph: 314-388-2254 • Email: [email protected] • Website: www.MKTPILEMAN.com

marineconstructionmagazine.com ISSUE #1 - 2019| 37

NEWS Building Infrastructure
from the “Ground-Up”
RELEASE for Over 55 Years

CSR-155 Heavy Phone:
SPT, CPT & WIRELINE Construction
ROTARY CORE TEST Slurry Trenches 708.354.7112
& Walls
DRILL RIG Undersealing Colloidal Grouting Equipment
Tie-Backs Featuring
The new CSR-155 soil test drill rig is a compact and powerful rig Tendons
for SPT, CPT, wireline coring and rotary drilling. The CSR-155 has Ground Anchors ChemGrout’s
the versatility to auger drill, rotary/mud drill, wireline rotary core Foundations “TurboMix”
drill, SPT hammer test and full-function CPT test in ONE compact Colloidal
track mounted drill rig. This drill rig is a first in the industry. Marine/ Mixer
Offshore
The Crossover Rig (CSR-155) has a two-drilling position mast, Bridges &
with an incredibly powerful 4-speed drill motor gearbox with a Foundations
built-in heavy duty wet swivel.n Dam Grouting
Underwater
38 | ISSUE #1 - 2019 marineconstructionmagazine.com Erosion
Protection

Mining &
Tunneling
Void Filling
Waterproofing
Rock Bolts
and Anchors

www.chemgrout.com

marineconstructionmagazine.com ISSUE #1 - 2019| 39

J&J BoatWorks, Inc.

Custom Sectional Barge

We custom build any size sectional barge needed, and we can design the barge to meet
your needs. We have 40’x10’x4’ Raked sectional barges in stock for sale, rent, or lease
purchase. We are custom marine fabricators and can build to your specs. If it floats
and fits on a truck we can build it. Sizes range from 20’ long to 60’ long per section,
commonly 10’ to 12’ wide, but can go up to 16’ wide. 30’x16’x3’ / 30’x16’x4’ / 40’x20’x4’ /
40’x20’x5’ / 40’x24’x4’ / 40’x24’x5’ / 50’x20’x4’ / 50’x20’x5’ / 50’x24’x4’ / 50’x24’x5’
Our sectional barges are used in all types of marine applications from Crane barges,
Dredge barges, floating docks,Pile driving barges, Spud barges, Fuel barges, and even
used for House boats.

CONTACT: JOE BREECK We offer Spudwells, spuds, ramps, king post,
OFFICE: 812-839-3273 winches, anti-foulant bottom paint, zinc
CELL: 812-599-8774 annodes, and other options as needed.
EMAIL: [email protected]
WWW.JANDJBOATWORKS.COM

40 | ISSUE #1 - 2019 marineconstructionmagazine.com

Structural Environmental Solution
Made in the USA
pla8st0ic0b-7oa2r1d-s9.c0o3m7

A Proven Marine Solution For Over 20 years

Bedford Technology’s, SeaPile® , SeaTimber® ,
and BarForce® are advanced plastic composite
building materials that are engineered for the
marine industry to take on even your toughest
challenges.
These products are manufactured from recycled
HDPE, fiberglass strand, and fiberglass polymer
rebar and vary in strength to suit your specific
marine application needs.
Increase your return on investment by
using these long-term, low-maintenance product
lines as an alternative to traditional wood, metal
and concrete.

Common Applications: Features & Benefits:

»Fendering Systems »Industry-leading impact
»Bridge Pier Protection resistance and energy
»Small Water Piles absorption
»Wales & Beams »Can be pile driven, sawn
»Navigational Aids and drilled like traditional
»Dolphin Clusters wood for easy installation
»Shoreline Maintenance »Long-lasting
»Retaining Walls »Low-maintenance
»Groynes »Doesn’t leach chemicals
»Walings & Bullrails »Won’t rot or mold
»Not susceptible to borers

Bedford Technology is the leading manufacturer of premium, structural and reinforced recycled HDPE
plastic lumber for commercial markets including marine, industrial and other outdoor markets.

CONSTRUCTION

INSPECTION

OF UNDERWATER WORK

A s Bridge owners, Dock builders and Marine Contractors UNDERWATER CONTRACTORS HAVE ONE
look for more economical repair options - in lieu of full OF THE HIGHEST OCCUPATIONAL FATALITY
bridge, dock or pier replacement - underwater construction RATES IN THE UNITED STATES.
becomes more prevalent. Many agencies are not versed in the
methods of underwater construction and often times overlook Various constraints on performing work determine how work
the costs and issues associated with work below the waterline. may be accomplished. All of these constraints produce risks with
Construction for underwater repairs differs from topside or dry which the contractor must deal and account for when preparing
work and involves equipment and repair methods that owners need project bids and schedules. Some of these may be determined with
to plan accordingly for. a fair degree of accuracy. For instance, tide tables can be used to
determine available work periods where tidal currents are high. At
CONTRACTOR RISK best, many of the constraints such as vessel traffic, weather delays,
Underwater construction and work in the marine environment permit delays, and others can only be estimated and, when taken
in combination, may yield substantial risk.
poses significantly more risk than working on land. In addition
to higher construction costs, underwater construction is also more
hazardous to the worker.

42 | ISSUE #1 - 2019 marineconstructionmagazine.com

Providing the contractor with schedule flexibility, within reasonable
project limits, may help mitigate some risk factors.

INSURANCE
Insurance requirements become more complicated and expensive

when the work involves underwater construction. Separate policies
and riders are often required to provide additional coverage for
underwater work that is not specifically covered with a primary
policy. The following will address the different types of insurance
involved with underwater contractors and what owners need to
consider. Certificates of insurance should be provided to the bridge
owner for all policies in place.

WORKER’S COMPENSATION
Worker’s compensation is a no fault type of insurance that

provides compensation and medical assistance for workers who are
injured during the course of employment. It also pays death benefits
to dependents for job-related injuries. All employers in the United
States are required to carry worker’s compensation insurance.

Diving contractors pay higher premiums than most contractors.
Rates are based on amount of hours spent in the water by the
contractor’s divers. The insurance company underwriting the policy
audits payroll records each year to determine rates. Rates for
contractors providing diving services are usually 30-40 percent
higher than typical above water service rates. Subsequently most
diving contractors have wet pay and dry pay rates depending on
the type of work.

LONGSHOREMAN’S INSURANCE is communicated in detail on the design drawings and in the
United States Longshoreman’s & Harbor Work Act (USL&H) specifications. A significant amount of effort may be required
when writing the specifications of special provisions to cover the
is a federally mandated insurance put in place as a supplement particular project requirements.
to workers compensation to provide compensation to workers if
they were injured or killed while working on navigable waters in Drawings and Specifications
the US. This also includes work on piers, wharfs, dry docks, or Drawings and specifications must clearly establish the repair
other adjoining structure to the waterway. More recently, the term
“navigable waters” has also included almost any body of water. requirements as determined by the project owner’s engineers. The
Owners should note that workers falling under jurisdiction of USL&H extent of repair and selected repair method should be indicated,
include all trades in addition to divers and support personnel. along with appropriate details. In establishing the extent of repair,
Determination of where Worker’s Compensation and USL&H consideration should be given to the date of the design basis
coverage apply is not always clear. USL&H insurance should be a inspection report and the potential increase in deterioration until
requirement for all underwater repair contracts. the repairs are actually performed. An allowance of perhaps 20
percent additional removal for concrete structures is included by
JONES ACT MARITIME some engineers to account for expected additional deterioration
even when thorough and recent inspection data is available.
THE JONES ACT IS SIMILAR TO WORKER’S EDITORS NOTE: Truth of the matter is whether it is Concrete, Steel
COMPENSATION AND USL&H EXCEPT THAT or Timber, I would suggest an allowance of at least 10 - 20%.
IT PROVIDES COVERAGE FOR THE CREWS
OF VESSELS. When particular construction sequences or temporary support
may be needed, these should be shown along with a construction
There has always been discussion as to what constitutes a vessel sequence. For instance, it may be a constraint that only one pile in
and who is designated as a crew member. Divers working from a multi-pile bent can be under repair at any one time.
barges and jack-up vessels have been classified as coming under
the Jones Act. Contract documents should include all available site and
environmental information and detail special requirements for
Most companies obtain Marine Employers Liability insurance materials and testing, environmental compliance tests, and
to comply with the Jones Act. This insurance is normally under construction inspection. Specialized information to be provided
separate policy, and should be required of contractors engaged in when available could include:
marine repair projects.
¡¡ Water depths and fluctuations
CONTRACT DOCUMENTS AND ADMINISTRATIVE
In addition to the standard information normally provided ¡¡ Current data

on repair documents, the drawings and specifications should ¡¡ Water quality data
address special concerns that differ from the dry or topside work.
Since underwater work often doesn’t involve standard details, ¡¡ River channel bottom materials
the owner needs to ensure that all work performed underwater
¡¡ Water access points or staging areas.

marineconstructionmagazine.com ISSUE #1 - 2019| 43

DIVING SUBMITTALS ¡¡ Preconstruction inspection to document existing conditions
In addition to the contractor’s normal project information submittals,
¡¡ Verification inspections during construction
additional documents should be required which are associated
directly with the diving operation. The owner should require the ¡¡ Final acceptance inspection
diving contractor to submit the following additional documents: a. Full-Time - Some projects require the use of full-time
¡¡ Project Execution Plan - The project execution plan is prepared inspection due to the nature and cost of the work. Many
owners will utilize full-time inspection if the project is large,
prior to execution of the work. From the definable tasks of the has an aggressive schedule and the onsite work is critical.
contract documents, the contractor should outline in details how Most work requires the inspector to be on site at all times
the work is accomplished. It should address the following: during construction, especially if the contractor is placing
• Project description concrete underwater several times a week and there are
• Project organization multiple tasks being accomplished concurrently with other
• Safety work.
• Operations b. Part-time - If much of the work is being performed
• Submittal requirements underwater, the owner may consider part-time inspections.
• Schedule Part-time inspections are normally scheduled ahead of time
¡¡ Injury Management and Accident Prevention Plan—The before the project starts. The inspector is typically scheduled
injury management and accident prevention plan outlines the to be on-site during the same times each week. Part-time
contractor’s policies and procedures for work place accidents. inspections are adequate if the work is repetitive and no
It should address the following: critical items affect the quality. Usually theses work tasks
• Injury Protocol are long duration and the inspector is able to maintain the
• Procedures for providing emergency health care set schedule without missing key elements to inspect. For
• Procedures for reporting injuries underwater repairs, part-time inspections are not typically
• List nearby hospital locations and hyperbaric treatment used as milestone inspections.
c. Milestone Inspections - For many underwater repair
facilities projects, milestone inspections are advantageous for all
• List points of contact and Safety Officer parties involved in the construction. Construction or repair
• Discussion of the work specific to the project and how work work taking place underwater is not as efficient as topside
work might be. Therefore, a significant amount of time
will be performed safely is spent on preparation and setup by the contractor. The
contractor and owner can schedule milestone inspections
To ensure quality in the construction in any Underwater Marine at critical hold points during the construction. Milestone
Construction process, the owner should implement a program to inspections are favorable in that they can also be scheduled
oversee the enforcement of the construction documents. in advance and adjusted to not interrupt construction. In
addition, milestone inspections provide a cost savings to
Inspection Scope the owner without sacrificing quality.
The owner should specify prior to execution of the contract the

amount of time allotted for inspections. Full-time inspection is always
desirable if the project budget is able to support the additional
costs. Part-time and milestone inspections are more common since
the project may not always warrant full time inspections. Regardless
of the type of inspection used, it is important that the owner plan
for the following:

44 | ISSUE #1 - 2019 marineconstructionmagazine.com

INSPECTION CHECKLISTS • Epoxy grout equipment submittals to ensure specifications
Various inspection criteria for repairs are presented in the are met

chapters covering particular repair procedures are techniques. Two • Grout mixture has proper flow and strength tests submitted
of the most common repair techniques involve concrete repair and
pile repair. A summary list of inspection items for these is provided • Pile adequately cleaned and prepared; marine growth and
below. flash rust (steel) are critical considerations

CONCRETE REPAIRS • Grout ports are clear and in proper location
ƒƒCompliance with drawings and specifications
ƒƒPreconstruction inspection to verify existing conditions • Jacket properly installed to contain hoop stresses
ƒƒPre-pour inspections
• Standoffs in correct location, equally spaced and sufficient
• Formwork and reinforcing observations quantity
• Concrete cleaned and surface properly prepared
• Adequate reinforcing supports/chairs • Top and bottom seals in place
• Tolerance verifications
• Formwork cleanouts installed • Chloride flush from bottom up to remove chlorides from
• Debris and marine growth removal salt water
• Formwork mortar tight fit-up
¡¡Concrete removal verifications • Pours should take place within 24 hours of cleaning

Pile Jacketing • Grout from bottom up

¡¡ Compliance with drawings and specifications • Monitor jackets with tell tales for alignment during pouring
¡¡ Pile jackets and hardware meet specifications of grout
¡¡ Hardware is properly installed
• Push for five-year MINIMUM warranty for normal service n

• Heavy Lift and Rigging Experience: Experience in
Civil, Refinery, Petrochemical, Power and
Industrial Construction

• On-Site Transportation: Platform Trailers,
Jumper Bridges, Elevated Runways, Roll-on/Roll-Off,
Hydraulic Gantry Systems and Stand Jacks



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marineconstructionmagazine.com ISSUE #1 - 2019| 47

NEWS PAUL CURRY NAMED
NEW TRAINING
RELEASE MANAGER AT

LINK-BELT CRANES

LEXINGTON, KY – Dec 13, 2018 – Paul Curry has been named
training manager at Link-Belt Cranes. Curry will be responsible for
managing and directing all aspects of Linpaul-curryk-Belt training
programs, including the Preferred Technician Training Program,
Master Technician Training Program, sales training, parts training
and factory training.

Curry comes to Link-Belt with over 12 years of training experience
in a variety of roles at local and global companies. His educational
background includes a M.S. degree from California State University
in Adult Online Training and Learning. n

48 | ISSUE #1 - 2019 marineconstructionmagazine.com


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