| Location |
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| Client |
| | USACE- New England District |
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| Contract |
| | Dredge Type: Clamshell Dredge
Dredge: No. 51, No. 55
Quantity: 2,627,000 cubic yards
Duration: 2003
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| Description |
| | This project involved maintenance and new work dredging to deepen Providence Harbor and the Providence River approach channel to a depth of 40 feet. In addition, Great Lakes constructed deep confined aquatic disposal (CAD) cells for containment of contaminated materials. The maintenance dredging was performed by clamshell dredges using environmental buckets, with barge overflow prohibited.
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Maintenance dredging with ocean disposal totaled 2,627,000 cubic yards.
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New work dredging entailed construction of deep CAD cells to accept 1,400,000 cubic yards of contaminated materials.
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Ocean disposal totaled 1,500,000 cubic yards, and upland disposal 215,000 cubic yards.
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Capping medium to cover contaminated materials placed in CAD cells totaled 257,500 cubic yards.
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