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Civil Engineering Services

From large industrial campuses, to private residences, public interaction with development of facility often begins with the site. We support clients with innovative and cost-effective land development and site design solutions. As an integral component of the design team, Mainstay develops and establishes a well-defined road-map to lead the project team through complex regulatory processes. 

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Civil Engineering

  • Due Diligence / Site Feasibility Investigations​

  • Land Use Master Planning

  • Public Hearing Testimony

  • Regulatory Permit Approvals

  • Sewage Planning

  • Site Plans, Site Design & Construction Documents

  • Site Grading and Drainage Plans with Utility Systems

  • Soil Erosion and Sediment Control Plans

  • Storm Water Management Design

  • Subdivision Plans

  • Sustainable Site Development

  • Water & Sewer Systems Design

  • Zoning & Land Development Site Plan Preparation


Partner Services

  • Boundary, ALTA/ACSM, and Topographic Surveys

  • Landscape Architecture

  • Stormwater / Groundwater Infiltration Testing

  • Subsurface Utility Engineering (SUE)

  • Traffic Studies and Traffic Planning

  • Wetlands Delineation



1750 Walton Road, Suite 200

Blue Bell, PA 19422


50 South 16th Street, Suite 1700

Philadelphia, PA 19102


Social Media

  • LinkedIn


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