Dredging

Seaway Marine Group offers mechanical dredging to municipal, state, federal, and commercial clients.

With Poseidon® and Flexifloat® sectional barges and Trimble® GPS equipped long reach excavators we have the equipment and experience needed to complete your dredging project in the most efficient and environmentally responsible manner.

We also offer environmental dredging services, including the stabilization of dredge spoils and disposal of spoils at designated sites upland.

REDI environmental dredging site work — **Featured Project - REDI Dredging Morristown, NY**

Owner: NYS Office of General Services
Prime: Weeks Marine, Inc.
Subcontractor: Seaway Marine Group, LLC
Seaway Marine Group completed 2,100 CY of mechanical dredging with a Trimble® GPS equipped excavator on a barge. Prior to dredging we constructed a watertight containment cell where the dredge spoils were placed and stabilized with Portland cement. Once stabilized the spoils were then trucked to a designated upland disposal site.

dredging environmental REDI Morristown New York

Dredging Morristown New York St Lawrence River

Dredging Clayton Alexandria Bay New York — **Featured Project - REDI Dredging Clayton, NY**

Owner: NYS Office of General Services
Prime: Weeks Marine, Inc.
Subcontractor: Seaway Marine Group, LLC
Seaway Marine Group completed 7,000 CY of mechanical dredging with a Trimble® GPS equipped excavator on a barge from French Creek, Clayton, NY. The spoils were then transported in watertight trucks to a designated upland disposal site that Seaway had prepared to contain the spoils for an extended period of time.
An interesting element of this project was the need to protect an endangered Blandings Turtle that has a habitat at the dredge site. Humane traps were placed throughout the site and checked multiple times per day to ensure the turtles had the ability to ingress and egress.

Dredging REDI Ogdensburg tug barge — **Featured Project - REDI Dredging, Ogdensburg, NY**

Owner: NYS Office of General Services
Prime: Ramboll Americas Engineering Solutions, Inc.
Subcontractor: Seaway Marine Group, LLC
Seaway Marine Group completed 900 CY of mechanical dredging with a Trimble® GPS equipped excavator on a barge from the Ogdensburg Green Belt Boat Launch, NY. The spoils were then trucked to a designated upland disposal site that Seaway had prepared to contain the spoils for an extended period of time.

Dredging Henderson Harbor Lake Ontario Tug Barge REDI — **Featured Project - REDI Dredging, Henderson Harbor, NY**

Owner: NYS Office of General Services
Prime: Weeks Marine, Inc.
Subcontractor: Seaway Marine Group, LLC
Seaway Marine Group completed 700 CY of mechanical dredging with a Trimble® GPS equipped excavator on a barge from “The Cut” in Henderson Harbor, NY. The spoils were placed at a near shore placement area for beach replenishment.