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Appian Consulting Engineers, PA (Appian) has been instrumental in the planning and engineering of many showcase sites since the firm’s establishment in 1986. The wide range of projects has included site design and engineering for residential subdivisions, hospitals, senior care and housing facilities, retail stores, shopping malls, office parks and corporate office sites, industrial parks and sites, schools and colleges.

Whenever possible, Appian uses existing amenities and features to design sites that conserve natural resources and are aesthetically pleasing.  Appian’s team approach to site design includes coordination between the owner, project architect(s) and contractors as well as state and local agencies, such as the North Carolina Department of Transportation, storm water agencies, municipal planning boards and county highway departments.

We can provide Professional Services for every phase of site design, including:

  • Site Planning

  • Preliminary Engineering

  • Public Presentation and Hearings

  • Traffic Access and Circulation

  • Storm Water Management

  • Permitting Processes

  • Wastewater collection and treatment

  • Subsurface waste water treatment

  • Vacuum sewer collection systems

  • Water supply and distribution, elevated tanks and booster pumps

  • Solid waste management

  • Storm drainage

  • Street system improvements

  • Community development projects

  • Flood studies

  • Rail


-Certified by the NCDOT for the Approval of Small Professional Services Firm (SPSF)


Appian offers a full range of project management services to support various aspects of construction. We will partner with the owner during pre-construction, construction and post-construction activities, to assist the client from conceptual planning to the finished product. Daily inspection and project documentation are just a few of the tasks provided by our employees. Our Construction Management group’s extensive multi-disciplinary experience ensures that all work is performed in conformance with contract requirements, with the best quality control and quality assurance practices and safety. Appian will work closely with the owner, the designer, and the contractor to ensure that a high quality construction product is delivered on time and within budget.

Specialties include:

  • Roadway Utility and Structure inspection

  • Project documentation

  • Submittal review

  • Design support

  • Value engineering

  • Cost estimating


Our Site/Civil design team has extensive experience in the study, analysis and design of projects for a variety of clients. Our engineers analyze an existing site and produce design plans for municipal and commercial site 

developments, using Auto CAD - Latest Version, Civil 3D Design, Carlson GIS and Vehicle Simulation Analysis software.  At Appian, we recognize the importance of a good workable set of plans for the Developers and Contractors.

Specialties include:

  • Industrial and Commercial Site Development

  • Site master planning, sustainable site design

  • Low Impact Development (LID)

  • Stormwater Management

  • Sediment and Erosion Control


We have extensive experience in the study and analysis of river and stream projects for a variety of clients.  In addition to stream projects, the group can perform hydraulic design for a variety of roadway improvement projects.


Specialties include:

  • Hydrology and Hydraulics

  • Sediment & Erosion Control Design

  • Flood Plain Hydrological and Hydraulic  Modeling

  • Flood barriers and levees

  • Watershed Assessment

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