Featured Project

Restoration of the Eleutherian Mills Dam & Adjacent Millrace

Duffield Associates was retained by the Hagley Museum and Library (Hagley) to perform a review of the existing dam on the Brandywine River. The dam and adjacent millrace were built in 1803 by the DuPont family to harness the power of the river for use in gunpowder production. Hagley was interested in restoring the dam to its historical configuration. More...

This project received the 2010 New Castle County Historic Preservation Award for Industrial Technology Restoration.

 

Cumberland Geoscience Consultants,
A Division of Duffield Associates (CGC),
located in Carlisle, PA, offers the full range of Duffield Associates' services. For more information on CGC, please click here.

 

News and Features

Company News

David Athey, PE Joins Duffield

Jeff Bross Receives Prestigious Baxter Water Resources Award

Michael Paul served on Editorial Review Panel

John Fellows, RLA, Joins Duffield

17 LEED Accredited Professionals

Publications and Promotional Materials

Community Involvement
Money and time…that's what it takes to strengthen the community. As a firm, we are committed to giving back to communities in which we live and work. Our team donates to and participates in nearly 70 different local, regional, and national organizations.

Our staff will guide your project from concept through construction. For over thirty years, Duffield Associates has provided geoscience consulting for government, industrial, construction, and professional clients.

Duffield Associates is a leader in sustainable design. We employ strategies that provide well-conceived, high quality, and cost-effective solutions that also protect and sustain the environment. We recognize the relationship between the built and natural environments, and we continuously seek innovative design solutions that protect, restore, and enhance both.

Geoscience Services
 
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Wilmington, DE       Georgetown, DE        Philadelphia, PA        Carlisle, PA         Cape May Court House, NJ       North East , MD
302.239.6634              302-854-0100             215-545-7295           717-245-9100                       609-463-0019                 410-287-0030