Meet The St. John Engineering

Team Members

Principal Team Members

Scot St. John, P.E.

Scot St. John, P.E.

Founder, Principal, & Project Manager

Scot has over 30 years’ experience in the civil engineering field, including planning, design, and construction administration. He is currently certified as a Wastewater Collection System Operator and as a Water Distribution System Operator. He is also a Tennessee Licensed Professional Engineer. His expertise includes municipal planning and zoning, as well as the design of roadways, storm drainage systems, sewer collection and treatment systems, and water distribution systems.

Adam Carter, P.E.

Adam Carter, P.E.

Principal & Engineering Manager

Adam is a licensed Professional Engineer in the State of Tennessee and has over 16 years of experience in the civil and structural engineering fields including planning, project management, design, and construction administration. His experience is primarily in the civil areas of utility and transportation design, including sewer collection systems, water distribution systems, gas distribution systems, roadways, recreational trail facilities, sidewalks, and bridge design.

Jim Patterson

Jim Patterson

Principal & Environmental Manager

Jim has 30 years’ experience in the environmental field, including working with regulatory agencies, municipalities, commercial industries, and private clientele. This includes a vast number of stormwater permitting assistance projects, wastewater treatment, wetland mitigation, environmental site assessments, and a large variety of other environmental projects.

Jim is a Tennessee Qualified Hydrological Professional (QHP) and has performed many stream determination and wetland delineation projects. He has significant experience working with municipalities in the areas of MS4 permitting, planning and zoning.

Key Personnel

Doug Koonce, PLS

Doug is a licensed Professional Land Surveyor in the State of Tennessee. He has over 20 years of experience in the surveying field.

Stacy Slabaugh, RA

Stacy Slabaugh is a licensed Architect in the State of Tennessee and multiple other states. She has over 30 years of experience in architecture and has designed and overseen multiple types of projects including commercial, industrial, educational, and institutional.