Johnson, Depp & QuisenberryOwensboro, Kentucky (270) 926-1808
Lexington, Kentucky (859) 277-3639
Springfield, Illinois (217) 529-4534


A Consultant in America’s Heartland Serving Government, Business, Industry and Regular Folks Like You

Johnson, Depp & Quisenberry (JDQ) has, for more than seven decades, provided consulting services in civil engineering, planning and related disciplines.  Throughout our history, the quality of our work has enabled us to enjoy a reputation for professional excellence.  Many of our efforts have led to state and national recognition.

JDQ specializes in projects and programs in the following arenas. 

 Civil Engineering

   Transportation Planning & Design

   Bridges & Structures

    Specialized Engineering Studies


Environmental Services

   Emergency Management

   Environmental Site Assessments

   Risk Assessment & Remediation

   Environmental Studies & NEPA Reports          

Public Involvement

   Community Relations

   Context Sensitive Design

   Risk Communication


We focus on listening so we can better use our experience to help solve or prevent problems.