©2019 BY CHARLES P. JOHNSON & ASSOCIATES, INC.

Civil and Environmental Engineering 

Public engineering represents one of the core services offered by CPJ. Our extensive expertise in engineering allows us to coordinate across multiple disciplines to produce innovative designs that exceed expectations for Municipal and County projects. Our vast history in working for public agencies has given us the experience to handle public outreach, limited budgets, and quick responses to public needs. In addition, our technical expertise allows us to confidently assess any situation and make a reliable recommendation for how to proceed.  The staff works closely with each Agency to keep them and all other stakeholders informed of job progress and to stay in touch with their needs. CPJ has a great deal of experience working for public sector clients to meet their civil and environmental engineering needs.

Services include but are not limited to:

General Engineering

  • Construction Plans and Specifications

  • Bid Documents

  • Cost Estimates

  • Public Meetings

  • Permit Processing

  • As-Built Plans

  • Construction Management and Inspections

  • GIS Database Development and Management

  • Expert Witness

Highway Engineering

  • Sight Distance Analysis

  • Cross Section Development

  • Alignment Studies

  • Utility Relocation and Coordination

  • Pavement Marking and Signage

  • Traffic Control

  • Horizontal and Vertical Design

Site Development Engineering

  • Feasibility Studies

  • Preliminary Engineering Concepts

  • Sediment and Erosion Control

  • Utility Layout

  • Water Distribution Systems

  • Sanitary Collection Systems

  • Earthwork Calculations

  • Grading Plans

  • Storm Drain Design

  • Pavement Plan Design

  • Stormwater Management

  • Water Quality Plan Development

Water Resources Engineering

  • Hydrologic and Hydraulic Studies

  • Stormwater Management Design

  • Stormwater Management Retrofits

  • Storm Drainage Design

  • Culvert Design

  • Scour and Stability Analysis

  • Floodplain Studies

  • Dam Breach Studies

  • Dam Operation Manuals

  • Dam Emergency Action Plans

  • High Hazard Dam Inspections

  • SWM Facility Inspection to comply with NPDES

  • Confined Space Inspections

  • Stream Restoration and Monitoring

  • Watershed Studies

  • NPDES Permitting and Compliance Monitoring