Public Utilities and Site Design

Charter Oak staff have extensive experience with design, permitting and cost estimating, for many site and utility design projects.  Clients have included private property owners, land developers, industries, municipalities, state government and Indian tribes.  Our projects have in some instances taken place in environmentally sensitive areas.

Projects completed by Charter Oak staff required expertise in the following areas:

  • Site design including subsurface exploration, design of roads, driveways, parking lots and sidewalks, grading plans, site lighting and landscaping;
  • Design of water, sewer and storm drainage systems;
  • Design of roads and commercial/industrial access driveways and parking;
  • Design of storm water detention basins and storm water treatment facilities;
  • Design of other utilities, such as gas and electric, that require coordination with the respective utility companies;
  • Hydrologic and hydraulic calculations including standard DOT drainage methodologies (rational method), HEC-1, HEC-2 and TR-20 modeling;
  • Subsurface disposal system design and permitting;
  • Project permitting with local, state and federal regulatory agencies;
  • Construction cost estimating;
  • Creation of artificial wetlands for storm water renovation; and,

Preparation of Storm water Management Plans.

Preparation of site plans and utility designs are conducted in the long-term best interest of a site and adjacent features in order to minimize land disturbance and disturbance of natural resources, and for future planning and extension to adjacent properties.  Charter Oak staff have the knowledge and resources to make sound decisions regarding alternative materials and methods of construction where they may apply to a particular project or situation.

Charter Oak staff have experience with soil testing, design, field layout and construction supervision of subsurface disposal systems (septic systems) for single family and multi-family residences, and institutional uses including schools and municipal buildings.  These systems varied in size, and required permitting from local sanitarians and health departments, state health departments and environmental protection agencies.

Septic system repair designs have been completed by our staff for residential and institutional facilities.  Repairs were frequently required in environmentally sensitive areas (e.g. adjacent to lakes, wetlands or watercourses) or in physically restrictive areas (shallow depths to bedrock or seasonally high ground water).  Repair designs often require creative designs and methods and materials of construction, as well as extensive interaction with regulatory agencies, in order to obtain approval.