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

Engineering

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

Roadway Engineering

  • Sight Distance Analysis

  • Cross Section Development

  • Alignment Studies

  • Utility Relocation and Coordination

  • Pavement Marking and Signage

  • Traffic Control

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 Design utilizing Environmental Site Design (ESD) techniques

  • Floodplain studies

  • NPDES permitting