New York Harbour dredging

Ashtead Technology was tasked by Madcon Corporation to support the dredging of a 26in pipeline for inspection and repairs in New York Harbour, New York city.

The solution

The objective of the client was to remove sand sediment 50 feet away from the pipeline in 40 feet of water, with as little displacement of sediment into the water column as possible. As a result, no air lifts or jetting could be used.

We supplied a Vortex 6in Easy Dredge for this task, as the dredge had to be easy to use, simple to set up and able to backfill the exposed pipeline once the necessary repairs were made.


The client was satisfied with the level of performance delivered by the dredge system, noting that the working area was 'easily cleared out' thanks to the dredging performance. The 6in dredge was easily manipulated and moved around the worksite by divers, with the reversal valve allowing any temporary clogs to be cleared out effectively.

Lyle Kaskie, Project Manager for Madcon Corporation, said: "We introduced this technology to our client. They saw how the Vortex dredging system was different from the jet pumps they had previously used. Everyone was extremely happy with the performance of the Easy Dredge."