Jay Cashman Revises Quincy Pier 1 Dredging Plans

Image source: Jay Cashman, Inc.

Jay M. Cashman of Quincy Shipyard, LLC, has revised plans in seeking a permit from USACE’s New England District to conduct work in waters of the U.S. to expand and modify the dredging footprint to Pier 1 in the Quincy Shipyard in Quincy, Mass.

This work is proposed in the Fore River at 549 South Street in Quincy. A notice was issued on May 16, 2017 for the proposed work at Quincy Shipyard but those plans have changed and a new notice is being distributed with the revised plans.

The proposed work involves the expansion and modification to the authorized dredging footprint at and adjacent to Pier 1 in the Quincy Shipyard in order to create a turning basin to accommodate the turning radius of larger vessels.

Image source: Jay Cashman, Inc.

The applicant originally proposed to dredge approximately 4,500 cubic yards of silty material from approximately 1.50 acres of subtidal habitat in the Fore River to a depth of -31 feet mean low water (MLW) from existing depths ranging from -27 feet MLW to -31 feet MLW.

The applicant is proposing to reduce the originally proposed footprint in the Fore River; however, they are adding a second dredge area to the project, USACE said in its release.

This new dredge area is located at the end of Pier 1 and increases the proximity of the turning basin to within 400 feet of the Fore River Bridge. The applicant is proposing to dredge approximately 2,300 cubic yards of silty material from a 32,200-square-foot area within the previously proposed dredge area.

Additionally, the applicant is proposing to dredge approximately 1,720 cubic yards of silty material from the newly proposed 10,100-square-foot area. Dredging will increase water depths from existing depths of -27 feet MLW to -31 feet MLW to approximately -31 feet MLW. The new dredging proposal reduces the project’s total footprint from approximately 1.5 acres to 0.97 acres.

As before, dredging will be completed by mechanical means using a clamshell bucket dredge with a 27 cable arm environmental bucket.

The dredged material will be loaded onto scows that will be moored within the dredging site where the material within the scows will be allowed to settle for a minimum of 24 hours to allow for the fine material to drop out of suspension. Once the material has settled, the excess standing water will be decanted and returned to the project waters.

The dredged material will be offloaded from the scows and placed at a stockpile within the Quincy Shipyard before being transported to the Peabody Landfill to be used as cover.

Share this article

Follow Dredging Today

Events>

<< Dec 2019 >>
MTWTFSS
25 26 27 28 29 30 1
2 3 4 5 6 7 8
9 10 11 12 13 14 15
16 17 18 19 20 21 22
23 24 25 26 27 28 29
30 31 1 2 3 4 5

3rd International Congress Hydraulic Engineering Structures and Dredging

Russia’s leading maritime industry Media Group PortNews (www.portnews.ru) holds a traditional annual Congress “Hydraulic Engineering Structures and Dredging” in Moscow. 

The two-day Congress includes the 7th International Forum of Dredging Companies and the 3rd Technical Conference “Modern Solutions for Hydraulic Engineering”.

Infrastructure development is among the real sources of Russia’s economy growth. Construction of port facilities and new hydraulic engineering structures on the country’s inland waterways constitute an essential part of all infrastructure projects. It is important to take into account the best international practices to implement these projects effectively.

The program of the Congress will be devoted to the latest technologies for dredging and hydraulic engineering works. Speakers and delegates will refer to real projects to discuss specifics features of dredging works, as well as dedicated fleet and equipment involved.

To learn more about event, please, contact the organizing committee: snitko@portnews.ru

read more >

Jobs>

Looking to fill a job opening?

By advertising your job here, on the homepage of DredgingToday.com, you'll reach countless professionals in the sector. For more information, click below....

apply

Dredging jobs in Abu Dhabi at NMDC

National Marine Dredging Company “NMDC” aims to be the largest dredging player in the Arab’s Gulf region...

apply

Looking to fill a job opening?

By advertising your job here, on the homepage of DredgingToday.com, you'll reach countless professionals in the sector. For more information, click below...

apply