Engineering Design Source, Inc.

16141 Swingley Ridge Rd
Chesterfield, MO 63017
Phone: 636.537.5585


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MoDOT – New I-64
“EDSI’s employees bring value to the team and exhibit the values that I-64 project leadership is looking for to make our project successful: be flexible, encourage risk & accept failure, empower employees, be safe, provide best value for the money spent, use teamwork, listen and seek to understand, seek out and welcome ideas that increase options, and strive to work better, faster & cheaper. EDSI meets expectations for this evaluation period.”
Lesley Hoffarth | Project Director | MoDOT


City of Chesterfield – Chesterfield Valley Athletic Complex
“Thanks, George for all the great work that EDSI has done over the last few years, for the City of Chesterfield. It was certainly enjoyable to spend time with you and the rest of your group at the ACEC Awards ceremony. The staff at City Hall will be happy to showcase the ACEC Award EDSI received for the Chesterfield Valley Athletic Complex expansion project. Again, many thanks!”
John Nations | Former Mayor | City of Chesterfield


HDR – Grand Avenue Viaduct
“John Hock and the EDSI staff were excellent to work with. Communication was always clear and timely. The plan set is top notch for the complexity of the project.”
Kevin Kriete, PE | HDR


US Corps of Engineers – St. Louis Area Levee Surveys, Fall 2007
“I just wanted to let you know that we had a conference call this morning with the USACE. While on the call, Bob Mesko had nothing but good things to say about EDSI, so you and your team must have impressed him very much. Thanks for making us all look good to the client.”
Howard K. Davis, GISP, CFM | Sr. Project Manager | PBS&J


Lambert – St. Louis International Airport – Taxiway Design, Spring 2007
“I wanted to thank you for all the work your team performed on the Taxiway D Reconstruction project. The schedule for this work created some significant challenges which your team handled very well. The survey team far exceeded my expectations in regards to both the speed and accuracy of their work, which allowed the design team to move forward on our aggressive schedule. Your design team made a significant contribution to the overall work and was able to accomplish this work on an accelerated time schedule with minimal input from us. I look forward to working with you and your team again in the future.”
Ty Sander, PE | Project Manager | Crawford, Murphy & Tilly, Inc.


Deer Creek Sanitary Relief – Sewer Design, St. Louis Business Journal Article, Fall 2004
“They are one of the small-to-midsize local consulting firms that has always provided a high-quality, cost-effective product for our smaller-size projects [and] they have teamed as the prime consultant with larger nationwide firms to design much larger and more complicated projects, such as the $2.7 million design of a sanitary relief tunnel along Deer Creek.”
Brian Hoelscher, PE | Director of Engineering | MSD


Chesterfield Valley Athletic Complex Expansion – Civil Site Design, ACEC Award Ceremony, Winter 2008
“Thanks, George. We had a great time and it was certainly enjoyable to spend time with you and the rest of the group at our table. Thanks for the extra ACEC Award plaque and, more importantly, all of your great work for the City. Many thanks!”
Mayor John Nations | City of Chesterfield


I-64 Design/Build Segment 2 – Traffic Signal Review, Fall 2007
“Thank you for your input. We”ll include your comments with our eventual report back to Parsons on Aug. 29th. We appreciate you support and diligence. You are the only “I-64 Specialist Partner” that had the time and ambition to respond to our request. That is a credit to you and your work ethic. Thanks again for all you do.”
David Henroid | Missouri Department of Transportation