USA: Army Corps Awards Contract for Muddy River Restoration

Phase 1 of the Muddy River Flood Risk Management and Environmental Restoration project in Boston and Brookline, Mass., will be constructed under the terms of a $30,961,340.00 contract issued by the U.S. Army Corps of Engineers, New England District.

Work will be accomplished by Charter Environmental of Boston, Mass. Construction is scheduled to start on or about Oct. 1, 2012 and be completed in approximately 36 months.

The project objectives are to reduce flood risk and enhance aquatic/riparian habitat within Muddy River through improvements to restrictive drainage culverts, dredging accumulated sediment, removing nuisance vegetation, improving fisheries/wildlife habitat, bank stabilization and promoting and enhancing the recreational use of emerald necklace parklands,” said Project Manager Mike Keegan, of the Corps’ New England District, Programs and Project Management Division.

The project consists of the installation of two, 24-foot by 10-foot pre-cast concrete arch culverts supported by drilled shafts for 3-foot diameter and approximately 50-foot long caissons under existing roadways to support the culverts; the construction of concrete headwalls and wing walls also supported by caissons; installation of granite veneer and capstones on wing walls and headwalls; major excavation to construct open channel sections of river; and significant landscaping of new and existing channel sections. The project is in response to severe flooding in past years along and adjacent to the Muddy River as well as several tributary areas, particularly Stony Brook.

To accomplish this construction work will require dewatering sections of Muddy River, removal of existing culverts, construction of new and temporary roadways and modification of existing roadways, the installation and modification of traffic signals and controllers, and the construction of a weir structure upstream of the project area.

The project will be managed by the Corps and supervised by a Corps’ Quality Assurance Representative to assure compliance with contract requirements.

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Dredging Today Staff, August 15, 2012

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