Our History

First Office, located at 1123 School Street in Hillsboro

First Office, located at 1123 School Street in Hillsboro


  • November – Founded as McDonough Engineering, a sole proprietorship providing structural and civil engineering services.


  • First project: New Water Tower and Telemetry for the City of Coffeen, Illinois
  • Certified as Disadvantage Business Enterprise/Woman Owned Business with Illinois Department of Transportation and Central Management Services
  • Pre-qualified with Illinois Capital Development Board (CDB) in Structural Engineering
  • First CDB Project
  • Illinois Department of Transportation (IDOT) pre-qualification in category of Structures (Simple)
  • Hire first employees


  • IDOT pre-qualification added in Drainage
  • CDB pre-qualification added in Civil Engineering


  • G. William (Bill) Whitlow joins firm
  • CDB pre-qualification added in Mechanical and Electrical Engineering and Special Consulting
  • IDOT pre-qualification added in Roads and Streets, Pumping Stations, and Mechanical Engineering
Office on Wood Street

Office on Wood Street


  • Kenneth C. McDonough, PE, SE, joins the firm


  • Relocate to office at 138 East Wood Street in Hillsboro, Illinois with 6 employees
  • Bill Whitlow becomes licensed PE and Tony Hard, PLS, joins the firm


  • Incorporate with partners Toni McDonough, PE, SE; G. William (Bill) Whitlow, PE; and Tony Hard, PLS
  • CDB pre-qualification added in Land Surveying
  • IDOT pre-qualification added in Land and Route Surveying; Location Drainage Studies; Hydraulic Reports: Waterway Typical; and Location and Design Studies: Rehabilitation.
  • Awarded first IDOT prime contract for survey work


  • Registered with Central Contractor Registration and HUBZone (currently SAM -U.S. Federal Government’s System for Award Management)
  • Obtain business license in Missouri
  • Certified as DBE with Missouri Department of Transportation


  • Corey Franzen, EI, joins firm


  • IDOT Pre-qualification added in Structures (Typical)
  • Ken McDonough certified as NBIS Program Manager and Corey Franzen certified as NBIS Team Leader


  • Corey Franzen becomes licensed PE


  • Received first IDOT prime contract for engineering work


  • Matthew Fuller, EI, and Josh Hensley, PE, join firm
Our Current Office

Our Current Office


  • Relocate to new office at 9025 Illinois Route 127 in Taylor Springs, Illinois
  • IDOT pre-qualification added in Special Services: Electrical Engineering


  • Matthew Fuller becomes licensed PE


  • Jennifer J. Trapani, PLS, joins the firm