NJWSA Introduces Dredging Plan for Delaware and Raritan Canal (USA)

The New Jersey Water Supply Authority has announced a plan for dredging of the Delaware and Raritan Canal from Kingston to Amwell Road.

Project Objective

■ Remove an estimated 240,000 cubic yards of sediment from the Canal in order to restore its flow capacity;

■ Remove and dispose of 45,000 cubic yards of sediment from the Authority’s stockpile site in Delaware Township, Hunterdon County, NJ.

Project Goals

■ Protect the historical integrity of the Canal;

■ Minimize environmental and social impacts Critical Project Elements;

■ Develop dredging plan acceptable to stakeholders;

■ Focused outreach to public officials and stakeholders.

Dredging

Dredging Technologies Evaluated

■ Mechanical Excavation (in the dry);

■ Mechanical Dredging (in the wet);

■ Hydraulic Dredging with Mechanical Dewatering;

■ Hydraulic Dredging with Geobags.

Dredge Material Characterization

■ Chemical analysis of the target materials meet State non-residential re-use standards with a portion also meeting re-use standards at residential sites. Vanadium and benzo(a) pyrene was observed in some samples at higher than residential levels, but within known criteria for site-specific brownfield reuse;

■ Elutriate (filtrate water) samples from bench-scale dewatering tests concluded that direct discharge to the Canal would achieve surface water standards. Treatment (such as filtration) to remove suspended solids may be required to improve the return water quality.

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Press Release, May 21, 2013

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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

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