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Our clients face many site management and infrastructure challenges. The Civil Engineering Group at Duffield Associates utilizes our technical expertise, our relationship with regulators, and our knowledge of the regulatory process to help our clients meet those challenges.

We strive to provide timely cost effective solutions. We are committed to finding solutions that benefit our clients. Those solutions may include engineered systems, partnering with government agencies, teaming with private stakeholders and identifying potential funding sources.

The services that we offer to address those challenges include:

  • Land/Site Development
  • Redevelopment
  • Sustainable Site Design
  • Stormwater Management Analysis & Design
  • Drainage Studies
  • Hydraulic Design
  • Water/Wastewater Infrastructure
  • Water Supply Studies
  • Surface Water Modeling
  • Flood Studies/Analyses
  • Water Resource Protection Area Evaluations
  • Hydrogeologic Evaluations
  • Resource Extraction & Mining
  • Permitting
  • Dam Studies and Design
  • Geographical Information Systems
  • Forensic Engineering

Our areas of expertise include the following LEED activities:

  • Stormwater Design - quantity and quality engineering using best management practices including bioretention areas, bio-swales, infiltration systems, porous pavements, pollutant source control and TMDL compliance.
  • Construction Activity Pollution Prevention - erosion and sedimentation control plans including NPDES program compliance
  • Innovative Wastewater Technologies - drip/spray system and Rapid Infiltration Basin (RIB) modeling, design, construction and management, design of gray water irrigation systems.
   

For more information on our Civil Engineering Services, contact:

William J. Mather, P.E.
Civil Engineering Section Manager

Duffield@duffnet.com

Wilmington, DE       Georgetown, DE        Philadelphia, PA        Carlisle, PA         Cape May Court House, NJ      Havre de Grace , MD