GF Johnston & Associates - Index

G.F. Johnston & Associates is a consulting Civil Engineering Firm that provides comprehensive design and construction services. We are typically involved in survey mapping, site planning, road design, stormwater, water supply and sewer system design. We provide consultation and design for flood control programs, stormwater permitting, and the preparation and processing of development applications.


We provide a range of services that assist clients in developing plans for their private homes, on up through the detailed design and construction plans required for public bid infrastructure projects.