Our staff has the required skills to facilitate every step along a project’s path from conceptual planning to final design and construction administration. We maintain the necessary licenses and certifications in order to perform these services in accordance with accepted practices. Our professional services for design and engineering include the following:

  • Residential and Commercial Subdivisions
  • Institutional and Recreational Area Planning and Design
  • Site Development Design: Conceptual planning, preliminary layouts, grading and paving plans, drainage and utility plans, parking design and erosion and sediment control planning
  • Roadway Design: Vertical and horizontal alignments, pavement and drainage design and technical specifications, right-of-way layouts and property acquisitions
  • Domestic Water System Design: Distribution system design and hydraulic modeling
  • Sanitary Sewer System Design: Sanitary Sewer Evaluation Studies (SSES), conveyance and rehabilitation design, hydraulic and capacity analyses
  • Utility Mapping: Asset assessment, field data collection and information processing of utility infrastructure utilizing high-accuracy survey procedures adaptable to advanced GIS mapping programs
  • Stormwater Management Design: Hydrologic and hydraulic modeling and analyses
  • Project Development Services: Alternative-source funding assistance, engineering studies, rate assessments, master planning, scheduling and cost analyses
  • Applications and Permitting: Environmental, land disturbance and stormwater discharge permitting
  • Plan Development: Spill Prevention, Control and Counter-Measure Plan (SPCCP) and Stormwater Pollution Prevention Plan (SWPPP)
  • Project Management, Construction Administration and Resident Construction Observation

Applied Technologies

St. John & Associates, Inc. utilizes practical engineering applications in conjunction with the latest available technologies to develop effective solutions to our clients’ challenges. 

Computer Aided Design and GIS Mapping

  • AutoCAD v2020 
  • Microstation

Site Design and Earthwork

  • AUTODESK AutoCAD Civil 3D
  • Transoft Solutions Autoturn
  • COGO – Coordinate Geometry
  • DTM – Digital Terrain Modeling

Hydrology and Hydraulic Modeling

  • Hydraflow Hydrographs
  • Hydraflow Storm Sewers
  • Hydraflow Express
  • FHWA HY8 for Culvert Design
  • AUTOCAD Storm and Sanitary

Project Management and Scheduling

  • Microsoft Office
  • Microsoft Project
  • Adobe Acrobat Professional
  • Bluebeam Revu