Please use this identifier to cite or link to this item: https://hdl.handle.net/11681/38101
Title: Final Summary Report, Plume Monitoring : Boston Harbor Inner Harbor Maintenance Dredging Project
Authors: Battelle Memorial Institute
Keywords: Boston Harbor (Mass.)
Dredging
Dredging spoil
Channels (Hydraulic engineering)
Environmental management
Environmental protection
Publisher: United States. Army. Corps of Engineers. New England District.
Abstract: This report documents the observed turbidity and suspended sediment concentrations in the vicinity of clamshell dredge operations and dredged material disposal operations in Boston Harbor, Boston, Massachusetts. The measurement program was undertaken at the request of the U.S. Army Corps of Engineers (USACE), New England District (NAE) to support the Boston Harbor Inner Harbor Maintenance Dredging Project. This report documents the water column monitoring results during the removal of dredged material from locations in Boston Harbor and the monitoring results during placement of dredged material into the Mystic River Confined Aquatic Disposal (CAD) cell including: 1) Dredging of the top layer of silty material, which was determined to be unsuitable for ocean placement, from a potential CAD cell located in the Inner Harbor Main Ship Channel (MSC) just south of the Inner Confluence of the Mystic River and Chelsea Rivers, referred to in this report as the Northern MSC area (Figure 2) in June-July 2008. 2) Placement of some of the material from the Northern MSC area, determined to be unsuitable for ocean placement, into the Mystic River CAD cell, July 1, 2008. 3) Maintenance dredging of silty material, determined to be unsuitable for ocean placement, from the MSC near Governors Island Flats, referred to in this report as the Southern MSC area, in mid-September 2008. 4) Placement of material from the upper portion of the Reserved Navigation Channel, determined to be unsuitable for ocean placement, into the Mystic River CAD cell, in October 3, 2008. 5) Placement of material from the MSC near the Reserved Channel, referred to in this report as the Lower MSC area, determined to be unsuitable for ocean placement, into the Mystic River CAD cell, in October 27-28, 2008. The turbidity and suspended sediment concentration of plumes produced by the dredging and disposal activity were monitored using continuous, real-time measurements of acoustic backscatter calibrated with TSS data generated from water samples collected on site.
Description: Summary Report
Rights: Approved for Public Release; Distribution is Unlimited
URI: https://hdl.handle.net/11681/38101
Appears in Collections:Environmental Documents

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