O’Connell & Associates civil engineering design team works with each client to develop conceptual and detailed residential, commercial, and municipal designs.  Projects may include, planning, permitting and development of site grading and drainage, roadway design, small and large scale stormwater retention, pumping station design, potable water wells, storage and distribution systems, wastewater collection and treatment systems, reuse water handling and disposal.  During the design, our team will also coordinate closely with planning and regulatory authorities to establish a well-defined roadmap to help lead the project team through complex review and approval processes.


  • Residential and Commercial Development
  • Road and Bridge Design and Analysis
  • Grading and Drainage
  • Stormwater Design and Analysis
  • Pumping Systems
  • Production Water Wells
  • Permitting
  • Potable Water Treatment
  • Potable Water Storage and Distribution Systems
  • Wastewater Collection Systems
  • Wastewater Treatment
  • Reuse Water Distribution/Disposal
  • Retaining Walls
  • Specification Writing
  • Forensic Analysis
  • Traffic Studies
  • Utility Relocation
  • Flood Zone Certification
  • CAD Drafting
  • Construction Administration