Page 32: of Maritime Reporter Magazine (December 2023)

G REAT of

HIPS

S 2023

GLDD H DOPPER REDG

NE OF THE BEST FEATURES OF THE ALVESTON IS HER RELATIVE SHALLOW DRAFT

FOR HER CAPACITY O THAT ALLOWS HER TO GET CLOSER TO THE BEACH TO BE

MORE EFFICIENT AND TO USE LESS ENERGY TO GET THE WORK DONE HE S GOT

THE LATEST SUITE OF DREDGE CONTROLS IN AUTOMATION AND OVER TIME THOSE , . S . S G , ’ , “O

AUTOMATIONS WILL HELP THE VESSEL REMAIN AS EFFICIENT AS POSSIBLE , .” – C G , SVP, P S & F E , GLDDHRIS UNSTEN ROJECT ERVICES LEET NGINEERING

Image courtesy GLDD arlier this year Conrad Shipyard launched work is being close to shore to limit your pumping distances,”

Galveston Island, the ? rst of two newbuild hop- said Gunsten. “One of the best features of the Galveston is her per dredges being built for Great Lakes Dredge & relative shallow draft for her capacity. So that allows her to

Dock Corporation, a 6,500-cu.-yd.-capacity trail- get closer to the beach, to be more ef? cient, and to use less en-

Eing suction hopper dredge. ergy to get the work done. She’s got the latest suite of dredge

The dredge is equipped with a direct high-power pump- controls in automation, and over time, those automations will ashore installation, dredging system automation, dynamic help the vessel remain as ef? cient as possible.” positioning and tracking, U.S. EPA Tier 4 compliant engines, Central to Galveston Island’s ef? ciency are its Wabtec EPA and have capabilities of running on biofuel to minimize the Tier 4 powerplants, engines that achieve performance without environmental impact. the need for urea.

Great Lakes hopper ? eet renewal program will be complete in “We wanted to get as ef? cient as possible without the need 2025 with the delivery of the sister ship to the Galveston Island. for the urea after treatments that are at costly and cumbersome to manage at times,” said Gunsten. “These engines also have

Inside Galveston Island the biofuel capacity. That’s not widely available in a lot of

GLDD’s new hopper dredge Galveston Island was built by markets [now] but they have that option.”

Conrad Shipyard. “One really important factor of that type of The removal of aftertreatment, according to Patrick Webb,

REA TANKS ARE BIG STRUCTURES THAT ARE VERY EXPENSIVE TO BUILD THAT

GOES AWAY WITH THE ABTEC IER E DON T HAVE THOSE TANKS SO W ’ ] “[U 4. W ; ,

DESIGNERS CAN USE THAT SPACE FOR CARRYING CAPACITY F IT S A HOPPER T

DREDGE THEY CAN HAVE LARGER HOPPERS F IT S A VESSEL THAT CARRIES , . I ’

CARGO THEY CAN HAVE MORE CARGO THEY HAVE MORE MACHINERY SPACE LIKE

WITH THE ALVESTON SLAND G I ,” . I ’ , , – P W , S D S - G M S , WATRICK EBB ENIOR IRECTOR ALES LOBAL ARINE AND TATIONARY ABTEC

Image courtesy Wabtec 32 Maritime Reporter & Engineering News • December 2023

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