Duffield Associates Projects

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Our staff of engineering and science professionals is prepared to assist our clients in every aspect of their projects...from concept...through construction...into operation. We solve problems and seek to add value.
	Sustainable	Indefinite Delivery Contracts

	Delaware Park CAFO Eleutherian Mills Dam & Adjacent Millrace Restoration Hockessin Athletic Club Redevelopment: From Mushrooms to Muscle Stone Harbor NJ Bird Sanctuary Restoration Tweed's Park Green Technology, DE Woodlands Perryville, MD Sustainable Mixed Use Community	State of Delaware, Office of Management and Budget, Division of Facilities Management Indefinite Delivery Contract US Army Corps of Engineers, Philadelphia District Indefinite Delivery Contract for Geotechnical, Geo-environmental And Hazardous/Toxic Services Delaware River & Bay Authority Geo-environmental Services
		Multi-Disciplined Projects

		AstraZeneca U.S. Headquarters Christiana Care Health System Expansion New Castle County Courthouse Philadelphia Eagles' Corporate Headquarters and Training Facility Lumber Store - White Clay Creek Floodplain/Floodway Evaluation and Mitigation
	Geotechnical and Construction Review
	AAA New Headquarters Building B & O Bank Stabilization Cool Springs Reservoir Reconfiguration Dover Air Force Base Union Hospital Expansion
		Water Resources

		New Castle County NPDES St. Jones and Broadkill Rivers Watershed Assessments Wastewater Disposal Site Evaluation - Southern Sewer Service Area White Clay Creek Projects
	Environmental Services

	Environmental Consulting Services Provided to Fortune 100 Client City of Philadelphia Environmental Consulting Services Contract Potts Superfund Site
	Solid Waste Landfill

	Cells B-2 and B-3 Ash Residue Disposal Area Partial Closure Project, Harrisburg Incinerator Residual Disposal Landfill, PA Cell 2E-2 King & Queen Landfill, King & Queen County, VA
		Coastal/Waterfront

		South Bethany Beach Dredging Feasibility Study Multipurpose Dock on the Delaware River

Wilmington, DE

Georgetown, DE

Philadelphia, PA

Carlisle, PA

Cape May Court House, NJ

North East , MD