As an industry, healthcare continues to change as rapidly as technology. At TWM, we understand managing your facility’s environment is one of the greatest challenges you face. We will help you focus on high patient care standards by taking care of the practical aspects of your facility’s site design. Our engineers focus on:

  • Site selection / due diligence
  • Master site plans & concepts
  • Watershed management & erosion control design
  • Sewer testing and flow monitoring
  • Permitting, zoning, planning & building codes
  • ADA-compliant pedestrian facilities (sidewalks, curb ramps)
  • Traffic flow analysis and signal design
  • Street, curb, gutter, bridge, road culvert design
  • Transportation planning
    • Bicycle trails
    • Bus and train access
    • Parking lots

We have successfully tackled projects of all sizes and scopes for various facilities in the greater St. Louis region including southern Illinois. Whether you are building a new hospital, an urgent care facility, a senior living community, or just implementing minor enhancements to an existing site, TWM’s team will provide you with the full spectrum of necessary engineering services to complete your project on-schedule and on-budget.

Learn more about our Civil Engineering services.

“I enthusiastically recommend TWM for any engineering and surveying services that you may need. TWM’s staff thoroughly understood the limitations and demands of the site conditions… TWM was also extremely skillful in submitting and procuring all permits required for our projects. They served effectively as our liaison with the City of Waterloo through the review process, ensuring a smooth process with no surprises.”

William J. Rebholz, Executive Director, Southern Illinois Medical Development Corp.

“TWM was always available when requested. When asked to be on site, they came the day that was asked and did not leave until their task was complete. Both their field and office support was easy to work with and went above and beyond their tasks.” 

Caitlin Huber, Project Manager, Alberici Healthcare
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Exceptional Service. Nothing Less.


TWM continues the important business of supporting our nation’s essential infrastructure in these uncertain times. We are committed to our mission of providing Exceptional Service, Nothing Less to you, our clients and partners. As a professional services firm, the health of our employee-owners and their families is paramount. We are following government directives and public health guidance, implementing work-from-home and other social distancing and hand hygiene practices. We have employed additional technological resources to support our modified operating structure, and we expect to be able to do so with minimal disruption. If you need to visit our offices in person or have trouble reaching your TWM contact, please contact us at 618.624.4488 so we can make arrangements or put you in touch with the appropriate person. Thank you for placing your trust in TWM. Wishing you safety and good health.