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News » US » Corps of Engineers awards major dredging contracts » published 28 Sep 2018

Corps of Engineers awards major dredging contracts

Great Lakes Dredge & Dock Company has won two contracts with a combined value of more than US$250m to improve access to two Florida harbors.

Both contracts are for the Jacksonville district of the US Army Corps of Engineers. The larger of the two contracts is at Jacksonville Harbor; the other is for the Tampa Harbor Big Bend Navigation Improvement project at Florida’s largest seaport.

Great Lakes Dredge & Dock’s Jacksonville Harbor contract B is the second of multiple contracts that will deepen the existing federal navigation channel from its current authorized depth of 40 feet to 47 feet. The base contract has a value of more than US$113m, with a total contract value of US$209.8m. Contract B will deepen approximately 5 miles of the St Johns River in addition to the ongoing deepening under Contract A, which covers approximately 3 miles from the entranceway inland. Contract B’s base funding will cover roughly 2.5 river miles of deepening, with the remainder of the funds provided in August 2019 to cover the additional 2.5 river miles. Contract work will also widen specific areas for two-way traffic and turning, and also provide some advance channel maintenance. Contract B includes dredging roughly 5.7 million cubic yards of material from River Mile 3 near the Naval Station Mayport runway, westerly to Mile 8 at the east tip of La Baron Island.

“This award represents another key milestone to improve harbor infrastructure that is vital to our economy,” said Colonel Drew Kelly, commander of the Corps’ Jacksonville District. The project will help ensure the nation’s infrastructure stays strong, bolster global competitiveness, facilitate imports and exports, generate jobs, and contribute to the quality of life for all Americans, he said.

Today, the largest ships calling on Jacksonville’s port must arrive and depart lightly loaded, making them shallow draft enough to navigate the current 40-foot channel depth. “A deeper and wider navigation channel will allow vessels to move cargo more efficiently and cost effectively,” project manager Jason Harrah said.

Construction is expected to start in late December and the estimated construction duration is roughly five years.

Great Lakes Dredge & Docks Company’s Tampa contract has a base value of US$47.9m, with the opportunity for two further options to be awarded at a later date. The project is designed to accommodate existing and prospective vessels that navigate Tampa Harbor. Work involves the deepening of the entrance channel, east channel, inner channel, turning basin and local service facilities at Big Bend from 34 to 43 feet. The contractor will widen the entrance channel from 200 to 250 feet for a length of 1.9 miles. It will deepen the existing turning basin to 43 feet, and expand the existing turning basin to 1,200 feet. An estimated four million cubic yards of material will be placed upland in an area for the disposal of dredged material. Construction for the base portion of the contract, which includes the entrance channel and turning basin, is expected to begin in October and will last for approximately 11 months.

 

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This article was published on 28 Sep 2018 (last updated on 28 Sep 2018).

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